From 11115a6951c46e92f9091e28c7d187b7e584478f Mon Sep 17 00:00:00 2001
From: Dirkster99 <Dirk.Bahle@gmx.de>
Date: Wed, 7 Mar 2018 21:55:06 +0100
Subject: [PATCH] Added Version 3.3 source from XCeed

---
 source/AvalonDock.sln                         |   30 +-
 .../AssemblyVersionInfo.cs                    |    2 +-
 .../Properties/AssemblyInfo.cs                |    8 +-
 .../Theme.xaml                                | 3443 +++++-----
 .../Xceed.Wpf.AvalonDock.Themes.Metro.csproj  |   36 -
 .../AssemblyVersionInfo.cs                    |    2 +-
 .../Controls/LayoutAnchorControl.cs           |  312 +-
 .../Controls/LayoutAnchorSideControl.cs       |  385 +-
 .../Controls/LayoutAnchorableControl.cs       |  217 +-
 .../LayoutAnchorableFloatingWindowControl.cs  |   56 +
 .../Controls/LayoutAnchorablePaneControl.cs   |    5 -
 .../Controls/LayoutAutoHideWindowControl.cs   |  894 +--
 .../Controls/LayoutDocumentControl.cs         |    1 +
 .../Controls/LayoutDocumentPaneControl.cs     |  109 +-
 .../Controls/LayoutFloatingWindowControl.cs   |    7 +-
 .../Controls/LayoutItem.cs                    | 2035 +++---
 .../Controls/NavigatorWindow.cs               |  591 +-
 ...rableContextMenuHideVisibilityConverter.cs |   49 +
 .../Xceed.Wpf.AvalonDock/DockingManager.cs    | 5535 +++++++++--------
 .../Layout/LayoutAnchorable.cs                | 1106 ++--
 .../Layout/LayoutContent.cs                   |    2 +-
 .../Xceed.Wpf.AvalonDock/Layout/LayoutRoot.cs | 1588 ++---
 .../Properties/AssemblyInfo.cs                |    2 +-
 .../Xceed.Wpf.AvalonDock/Themes/generic.xaml  | 2234 ++++---
 .../Xceed.Wpf.AvalonDock.csproj               |   37 +-
 25 files changed, 10005 insertions(+), 8681 deletions(-)
 create mode 100644 source/Components/Xceed.Wpf.AvalonDock/Converters/AnchorableContextMenuHideVisibilityConverter.cs

diff --git a/source/AvalonDock.sln b/source/AvalonDock.sln
index 97fd238c..f9657b75 100644
--- a/source/AvalonDock.sln
+++ b/source/AvalonDock.sln
@@ -1,6 +1,6 @@
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.27130.2003
+VisualStudioVersion = 15.0.27130.2036
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AvalonDock.TestApp", "AvalonDock.TestApp\AvalonDock.TestApp.csproj", "{339BC0D5-2A54-40ED-9850-7ED65182E6E1}"
 EndProject
@@ -68,16 +68,16 @@ Global
 		{AB95D11D-7239-4F3D-88FB-278B7C8EB6DF}.Release|x86.Build.0 = Release|x86
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x64.ActiveCfg = Debug|x64
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x64.Build.0 = Debug|x64
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x64.Build.0 = Debug|Any CPU
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Debug|x86.Build.0 = Debug|Any CPU
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|Any CPU.Build.0 = Release|Any CPU
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x64.ActiveCfg = Release|x64
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x64.Build.0 = Release|x64
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x86.ActiveCfg = Release|x86
-		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x86.Build.0 = Release|x86
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x64.ActiveCfg = Release|Any CPU
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x64.Build.0 = Release|Any CPU
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x86.ActiveCfg = Release|Any CPU
+		{DB81988F-E0F2-45A0-A1FD-8C37F3D35244}.Release|x86.Build.0 = Release|Any CPU
 		{488DD8F7-9D3C-4F53-BD1F-84A095D9BC10}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{488DD8F7-9D3C-4F53-BD1F-84A095D9BC10}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{488DD8F7-9D3C-4F53-BD1F-84A095D9BC10}.Debug|x64.ActiveCfg = Debug|x64
@@ -92,16 +92,16 @@ Global
 		{488DD8F7-9D3C-4F53-BD1F-84A095D9BC10}.Release|x86.Build.0 = Release|x86
 		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x64.ActiveCfg = Debug|x64
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x64.Build.0 = Debug|x64
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x86.ActiveCfg = Debug|x64
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x86.Build.0 = Debug|x64
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x64.Build.0 = Debug|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Debug|x86.Build.0 = Debug|Any CPU
 		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|Any CPU.Build.0 = Release|Any CPU
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x64.ActiveCfg = Release|x64
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x64.Build.0 = Release|x64
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x86.ActiveCfg = Release|x86
-		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x86.Build.0 = Release|x86
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x64.ActiveCfg = Release|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x64.Build.0 = Release|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x86.ActiveCfg = Release|Any CPU
+		{89286EB4-B4A1-418C-839A-067B00F442D8}.Release|x86.Build.0 = Release|Any CPU
 		{BD7EEE0E-9432-4E76-BD82-793358E56BDF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{BD7EEE0E-9432-4E76-BD82-793358E56BDF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BD7EEE0E-9432-4E76-BD82-793358E56BDF}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/AssemblyVersionInfo.cs b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/AssemblyVersionInfo.cs
index 04bbed86..6d3eb8a0 100644
--- a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/AssemblyVersionInfo.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/AssemblyVersionInfo.cs
@@ -21,7 +21,7 @@ This program is provided to you under the terms of the Microsoft Public
 internal static class _XceedVersionInfo
 {
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
-  public const string BaseVersion = "2.3";
+  public const string BaseVersion = "3.3";
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
   public const string Version = BaseVersion + 
   ".0.0";
diff --git a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Properties/AssemblyInfo.cs b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Properties/AssemblyInfo.cs
index 6d82a9ec..4f0eb25b 100644
--- a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Properties/AssemblyInfo.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Properties/AssemblyInfo.cs
@@ -25,12 +25,12 @@ This program is provided to you under the terms of the Microsoft Public
 // General Information about an assembly is controlled through the following 
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
-[assembly: AssemblyTitle( "Xceed Extended WPF Toolkit - AvalonDock Metro Theme" )]
+[assembly: AssemblyTitle( "Xceed Toolkit for WPF - AvalonDock Metro Theme" )]
 [assembly: AssemblyDescription( "This assembly implements the Metro Theme for the AvalonDock layout system." )]
 
 [assembly: AssemblyCompany( "Xceed Software Inc." )]
-[assembly: AssemblyProduct( "Xceed Extended WPF Toolkit - AvalonDock" )]
-[assembly: AssemblyCopyright( "Copyright (C) Xceed Software Inc. 2007-2014" )]
+[assembly: AssemblyProduct( "Xceed Toolkit for WPF - AvalonDock" )]
+[assembly: AssemblyCopyright( "Copyright (C) Xceed Software Inc. 2007-2017" )]
 
 
 
@@ -64,6 +64,6 @@ This program is provided to you under the terms of the Microsoft Public
 
 #pragma warning disable 1699
 [assembly: AssemblyDelaySign( false )]
-////[assembly: AssemblyKeyFile( @"..\..\sn.snk" )]
+[assembly: AssemblyKeyFile( @"..\..\sn.snk" )]
 [assembly: AssemblyKeyName( "" )]
 #pragma warning restore 1699
diff --git a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Theme.xaml b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Theme.xaml
index 9f2ae367..a1495ea4 100644
--- a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Theme.xaml
+++ b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Theme.xaml
@@ -14,1367 +14,1841 @@
 
   **********************************************************************************-->
 
-<ResourceDictionary
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:localThemes="clr-namespace:Xceed.Wpf.AvalonDock.Themes"
-    xmlns:shell="clr-namespace:Microsoft.Windows.Shell;assembly=Xceed.Wpf.AvalonDock"
-    xmlns:avalonDock="clr-namespace:Xceed.Wpf.AvalonDock;assembly=Xceed.Wpf.AvalonDock"
-    xmlns:avalonDockLayout="clr-namespace:Xceed.Wpf.AvalonDock.Layout;assembly=Xceed.Wpf.AvalonDock"
-    xmlns:avalonDockControls="clr-namespace:Xceed.Wpf.AvalonDock.Controls;assembly=Xceed.Wpf.AvalonDock"
-    xmlns:avalonDockConverters="clr-namespace:Xceed.Wpf.AvalonDock.Converters;assembly=Xceed.Wpf.AvalonDock"
-    xmlns:avalonDockProperties="clr-namespace:Xceed.Wpf.AvalonDock.Properties;assembly=Xceed.Wpf.AvalonDock"
-    >
-
-    <ResourceDictionary.MergedDictionaries>
-        <ResourceDictionary Source="Brushes.xaml"/>
-    </ResourceDictionary.MergedDictionaries>
-
-    <avalonDockConverters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter"/>
-    <avalonDockConverters:InverseBoolToVisibilityConverter x:Key="InverseBoolToVisibilityConverter"/>
-    <avalonDockConverters:AnchorSideToOrientationConverter x:Key="AnchorSideToOrientationConverter"/>
-    <avalonDockConverters:AnchorSideToAngleConverter x:Key="AnchorSideToAngleConverter"/>
-    <avalonDockConverters:NullToDoNothingConverter x:Key="NullToDoNothingConverter"/>
-    <avalonDockConverters:LayoutItemFromLayoutModelConverter x:Key="LayoutItemFromLayoutModelConverter"/>
-    <avalonDockConverters:ActivateCommandLayoutItemFromLayoutModelConverter x:Key="ActivateCommandLayoutItemFromLayoutModelConverter"/>
-
-    <Style x:Key="AvalonDock_ThemeMetro_ToolButtonStyle" TargetType="ToggleButton">
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="BorderThickness" Value="1"/>
-        <Setter Property="BorderBrush" Value="Transparent"/>
-        <Setter Property="Padding" Value="0"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="ToggleButton">
-                    <Border BorderBrush="{TemplateBinding BorderBrush}"
-                            Background="{TemplateBinding Background}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <ContentPresenter/>
-                    </Border>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-
-        <Style.Triggers>
-            <Trigger Property="IsMouseOver" Value="True">
-                <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor31}"/>
-                <Setter Property="Background"
-									    Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor10}" />
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:localThemes="clr-namespace:Xceed.Wpf.AvalonDock.Themes"
+                    xmlns:shell="clr-namespace:Microsoft.Windows.Shell;assembly=Xceed.Wpf.AvalonDock"
+                    xmlns:avalonDock="clr-namespace:Xceed.Wpf.AvalonDock;assembly=Xceed.Wpf.AvalonDock"
+                    xmlns:avalonDockLayout="clr-namespace:Xceed.Wpf.AvalonDock.Layout;assembly=Xceed.Wpf.AvalonDock"
+                    xmlns:avalonDockControls="clr-namespace:Xceed.Wpf.AvalonDock.Controls;assembly=Xceed.Wpf.AvalonDock"
+                    xmlns:avalonDockConverters="clr-namespace:Xceed.Wpf.AvalonDock.Converters;assembly=Xceed.Wpf.AvalonDock"
+                    xmlns:avalonDockProperties="clr-namespace:Xceed.Wpf.AvalonDock.Properties;assembly=Xceed.Wpf.AvalonDock">
+
+  <ResourceDictionary.MergedDictionaries>
+    <ResourceDictionary Source="Brushes.xaml" />
+  </ResourceDictionary.MergedDictionaries>
+
+  <avalonDockConverters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" />
+  <avalonDockConverters:InverseBoolToVisibilityConverter x:Key="InverseBoolToVisibilityConverter" />
+  <avalonDockConverters:AnchorSideToOrientationConverter x:Key="AnchorSideToOrientationConverter" />
+  <avalonDockConverters:AnchorSideToAngleConverter x:Key="AnchorSideToAngleConverter" />
+  <avalonDockConverters:NullToDoNothingConverter x:Key="NullToDoNothingConverter" />
+  <avalonDockConverters:LayoutItemFromLayoutModelConverter x:Key="LayoutItemFromLayoutModelConverter" />
+  <avalonDockConverters:ActivateCommandLayoutItemFromLayoutModelConverter x:Key="ActivateCommandLayoutItemFromLayoutModelConverter" />
+  <avalonDockConverters:AnchorableContextMenuHideVisibilityConverter x:Key="AnchorableContextMenuHideVisibilityConverter" />
+
+  <Style x:Key="AvalonDock_ThemeMetro_ToolButtonStyle"
+         TargetType="ToggleButton">
+    <Setter Property="Background"
+            Value="Transparent" />
+    <Setter Property="BorderThickness"
+            Value="1" />
+    <Setter Property="BorderBrush"
+            Value="Transparent" />
+    <Setter Property="Padding"
+            Value="0" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="ToggleButton">
+          <Border BorderBrush="{TemplateBinding BorderBrush}"
+                  Background="{TemplateBinding Background}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <ContentPresenter />
+          </Border>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style x:Key="AvalonDock_ThemeMetro_ButtonStyle"
+         TargetType="Button">
+    <Setter Property="Background"
+            Value="Transparent" />
+    <Setter Property="BorderThickness"
+            Value="1" />
+    <Setter Property="BorderBrush"
+            Value="Transparent" />
+    <Setter Property="Padding"
+            Value="0" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="Button">
+          <Border BorderBrush="{TemplateBinding BorderBrush}"
+                  Background="{TemplateBinding Background}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <ContentPresenter />
+          </Border>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <!--DocumentPaneControlStyle-->
+  <Style x:Key="AvalonDock_ThemeMetro_DocumentPaneControlStyle"
+         TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
+    <Setter Property="BorderBrush"
+            Value="{x:Null}" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
+          <Grid ClipToBounds="true"
+                SnapsToDevicePixels="true"
+                KeyboardNavigation.TabNavigation="Local">
+            <Grid.RowDefinitions>
+              <RowDefinition Height="Auto" />
+              <RowDefinition Height="*" />
+            </Grid.RowDefinitions>
+            <!--Following border is required to catch mouse events-->
+            <Border Background="Transparent"
+                    Grid.RowSpan="2" />
+            <Grid  Visibility="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type avalonDockControls:LayoutDocumentPaneControl}}, Path=Model.ShowHeader, Converter={StaticResource BoolToVisibilityConverter}}"
+                   Panel.ZIndex="1">
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <avalonDockControls:DocumentPaneTabPanel x:Name="HeaderPanel"
+                                                       Grid.Column="0"
+                                                       IsItemsHost="true"
+                                                       Margin="2,0,2,0"
+                                                       Grid.Row="0"
+                                                       KeyboardNavigation.TabIndex="1" />
+              <avalonDockControls:DropDownButton x:Name="MenuDropDownButton"
+                                                 Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
+                                                 Focusable="False"
+                                                 VerticalAlignment="Center"
+                                                 Grid.Column="1">
+                <avalonDockControls:DropDownButton.DropDownContextMenu>
+                  <avalonDockControls:ContextMenuEx ItemsSource="{Binding Model.ChildrenSorted, RelativeSource={RelativeSource TemplatedParent}}">
+                    <avalonDockControls:ContextMenuEx.ItemContainerStyle>
+                      <Style TargetType="{x:Type avalonDockControls:MenuItemEx}"
+                             BasedOn="{StaticResource {x:Type MenuItem}}">
+                        <Setter Property="HeaderTemplate"
+                                Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplate}" />
+                        <Setter Property="HeaderTemplateSelector"
+                                Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplateSelector}" />
+                        <Setter Property="IconTemplate"
+                                Value="{Binding Path=Root.Manager.IconContentTemplate}" />
+                        <Setter Property="IconTemplateSelector"
+                                Value="{Binding Path=Root.Manager.IconContentTemplateSelector}" />
+                        <Setter Property="Command"
+                                Value="{Binding Path=., Converter={StaticResource ActivateCommandLayoutItemFromLayoutModelConverter}}" />
+                      </Style>
+                    </avalonDockControls:ContextMenuEx.ItemContainerStyle>
+                  </avalonDockControls:ContextMenuEx>
+                </avalonDockControls:DropDownButton.DropDownContextMenu>
+                <Image Source="Images/PinDocMenu.png" >
+                </Image>
+              </avalonDockControls:DropDownButton>
+            </Grid>
+            <Border x:Name="ContentPanel"
+                    VerticalAlignment="Stretch"
+                    HorizontalAlignment="Stretch"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Background="{TemplateBinding Background}"
+                    Grid.Column="0"
+                    KeyboardNavigation.DirectionalNavigation="Contained"
+                    Grid.Row="1"
+                    KeyboardNavigation.TabIndex="2"
+                    KeyboardNavigation.TabNavigation="Cycle"
+                    Padding="0,1,0,2">
+              <ContentPresenter x:Name="PART_SelectedContentHost"
+                                ContentSource="SelectedContent"
+                                Margin="0,2,0,2"
+                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+            </Border>
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="IsMouseOver"
+                     SourceName="MenuDropDownButton"
+                     Value="True">
+              <Setter Property="Content"
+                      TargetName="MenuDropDownButton">
+                <Setter.Value>
+                  <Image Source="Images/PinDocMenu_Black.png" />
+                </Setter.Value>
+              </Setter>
             </Trigger>
-            <Trigger Property="IsChecked" Value="True">
-                <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor31}"/>
-                <Setter Property="Background"
-									    Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor10}" />
+            <Trigger Property="IsChecked"
+                     SourceName="MenuDropDownButton"
+                     Value="True">
+              <Setter Property="Content"
+                      TargetName="MenuDropDownButton">
+                <Setter.Value>
+                  <Image Source="Images/PinDocMenu_Black.png" />
+                </Setter.Value>
+              </Setter>
             </Trigger>
-        </Style.Triggers>
-    </Style>
-
-    <Style x:Key="AvalonDock_ThemeMetro_ButtonStyle" TargetType="Button">
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="BorderThickness" Value="1"/>
-        <Setter Property="BorderBrush" Value="Transparent"/>
-        <Setter Property="Padding" Value="0"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="Button">
-                    <Border BorderBrush="{TemplateBinding BorderBrush}"
-                            Background="{TemplateBinding Background}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <ContentPresenter/>
-                    </Border>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-
-        <Style.Triggers>
-            <Trigger Property="IsMouseOver" Value="True">
-                <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor31}"/>
-                <Setter Property="Background"
-									    Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor10}" />
+            <Trigger Property="IsEnabled"
+                     Value="false">
+              <Setter Property="Foreground"
+                      Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
             </Trigger>
-        </Style.Triggers>
-    </Style>
-
-    <!--DocumentPaneControlStyle-->
-    <Style x:Key="AvalonDock_ThemeMetro_DocumentPaneControlStyle" TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor33}"/>
-        <Setter Property="BorderBrush" Value="{x:Null}"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
-                    <Grid ClipToBounds="true" SnapsToDevicePixels="true" KeyboardNavigation.TabNavigation="Local">
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="Auto"/>
-                            <RowDefinition Height="*"/>
-                        </Grid.RowDefinitions>
-                        <!--Following border is required to catch mouse events-->
-                        <Border Background="Transparent" Grid.RowSpan="2"/>
-                        <Grid  Panel.ZIndex="1">
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <avalonDockControls:DocumentPaneTabPanel x:Name="HeaderPanel" Grid.Column="0" IsItemsHost="true" Margin="2,0,2,0" Grid.Row="0" KeyboardNavigation.TabIndex="1"/>
-                            <avalonDockControls:DropDownButton
-                                x:Name="MenuDropDownButton"
-                                Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
-                                Focusable="False"
-                                VerticalAlignment="Center"
-                                Grid.Column="1">
-                                <avalonDockControls:DropDownButton.DropDownContextMenu>
-                                    <avalonDockControls:ContextMenuEx
-                                        ItemsSource="{Binding Model.ChildrenSorted, RelativeSource={RelativeSource TemplatedParent}}">
-                                        <avalonDockControls:ContextMenuEx.ItemContainerStyle>
-                                            <Style TargetType="{x:Type avalonDockControls:MenuItemEx}" BasedOn="{StaticResource {x:Type MenuItem}}">
-                                                <Setter Property="HeaderTemplate" Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplate}"/>
-                                                <Setter Property="HeaderTemplateSelector" Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplateSelector}"/>
-                                                <Setter Property="IconTemplate" Value="{Binding Path=Root.Manager.IconContentTemplate}"/>
-                                                <Setter Property="IconTemplateSelector" Value="{Binding Path=Root.Manager.IconContentTemplateSelector}"/>
-                                                <Setter Property="Command" Value="{Binding Path=., Converter={StaticResource ActivateCommandLayoutItemFromLayoutModelConverter}}"/>
-                                            </Style>
-                                        </avalonDockControls:ContextMenuEx.ItemContainerStyle>
-                                    </avalonDockControls:ContextMenuEx>
-                                </avalonDockControls:DropDownButton.DropDownContextMenu>
-                                <Image Source="Images/PinDocMenu.png"/>
-                            </avalonDockControls:DropDownButton>
-                        </Grid>
-                        <Border x:Name="ContentPanel" 
-                                VerticalAlignment="Stretch" 
-                                HorizontalAlignment="Stretch"  
-                                BorderBrush="{TemplateBinding BorderBrush}"
-                                BorderThickness="{TemplateBinding BorderThickness}" 
-                                Background="{TemplateBinding Background}" 
-                                Grid.Column="0"
-                                KeyboardNavigation.DirectionalNavigation="Contained"
-                                Grid.Row="1" 
-                                KeyboardNavigation.TabIndex="2" 
-                                KeyboardNavigation.TabNavigation="Cycle"
-                                Padding="0,1,0,2">
-                            <ContentPresenter x:Name="PART_SelectedContentHost" 
-                                              ContentSource="SelectedContent" 
-                                              Margin="0,2,0,2"
-                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="IsMouseOver" SourceName="MenuDropDownButton" Value="True">
-                            <Setter Property="Content" TargetName="MenuDropDownButton">
-                                <Setter.Value>
-                                    <Image Source="Images/PinDocMenu_Black.png"/>
-                                </Setter.Value>
-                            </Setter>
-                        </Trigger>
-                        <Trigger Property="IsChecked" SourceName="MenuDropDownButton" Value="True">
-                            <Setter Property="Content" TargetName="MenuDropDownButton">
-                                <Setter.Value>
-                                    <Image Source="Images/PinDocMenu_Black.png"/>
-                                </Setter.Value>
-                            </Setter>
-                        </Trigger>
-                        <MultiDataTrigger>
-                            <MultiDataTrigger.Conditions>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SelectedContent.IsActive}" Value="True"/>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SelectedContent.IsLastFocusedDocument}" Value="True"/>
-                            </MultiDataTrigger.Conditions>
-                            <Setter Property="Background"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor31}" />
-                        </MultiDataTrigger>
-                        <MultiDataTrigger>
-                            <MultiDataTrigger.Conditions>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SelectedContent.IsActive}" Value="False"/>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SelectedContent.IsLastFocusedDocument}" Value="True"/>
-                            </MultiDataTrigger.Conditions>
-                            <Setter Property="Background"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor30}" />
-                        </MultiDataTrigger>
-                        <Trigger Property="IsEnabled" Value="false">
-                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                        </Trigger>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Model.ChildrenCount}" Value="0">
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="MenuDropDownButton" />
-                        </DataTrigger>                        
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="ItemContainerStyle">
-            <Setter.Value>
-                <Style TargetType="{x:Type TabItem}">
-                    <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/>
-                    <Setter Property="Background" Value="Transparent"/>
-                    <Setter Property="BorderBrush" Value="Transparent"/>
-                    <Setter Property="Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-                    <Setter Property="ToolTip" Value="{Binding ToolTip}"/>
-                    <Setter Property="Padding" Value="4"/>
-                    <Setter Property="Margin" Value="2,0,2,0"/>
-                    <Setter Property="Template">
-                        <Setter.Value>
-                            <ControlTemplate TargetType="{x:Type TabItem}">
-                                <Grid SnapsToDevicePixels="true"
-                                       Margin="0,4,4,4">
-                                    <Border x:Name="Bd" 
-                                          BorderBrush="{TemplateBinding BorderBrush}"
-   				                          BorderThickness="0,3,0,0" 
-							              Background="{TemplateBinding Background}" 
-							              Padding="{TemplateBinding Padding}">
-                                    </Border>
-                                    <ContentPresenter 
-								            x:Name="Content" 
-                                            Margin="2"
-								            ContentSource="Header" 
-                                            HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" 
-                                            VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
-                                            RecognizesAccessKey="True" 
-                                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                                </Grid>
-                                <ControlTemplate.Triggers>
-                                    <Trigger Property="Selector.IsSelected"
-								            Value="true">
-                                        <Setter Property="BorderBrush"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
-                                        <Setter Property="Panel.ZIndex" 
-                                            Value="1" />
-                                    </Trigger>
-
-                                    <DataTrigger Binding="{Binding IsActive}" Value="True">
-                                        <Setter Property="BorderBrush"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
-                                        <Setter Property="Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-                                        <Setter Property="Panel.ZIndex" 
-                                            Value="1" />
-                                    </DataTrigger>
-
-                                    <MultiTrigger>
-                                        <MultiTrigger.Conditions>
-                                            <Condition Property="IsMouseOver" Value="true"/>
-                                            <Condition Property="Selector.IsSelected" Value="false"/>
-                                        </MultiTrigger.Conditions>
-                                        <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}"/>
-                                        <Setter Property="Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-                                        <Setter Property="Panel.ZIndex" Value="0" />
-                                    </MultiTrigger>
-                                    <Trigger Property="IsEnabled" Value="false">
-                                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                                    </Trigger>
-                                </ControlTemplate.Triggers>
-                            </ControlTemplate>
-                        </Setter.Value>
-                    </Setter>
-                </Style>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="ItemTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutDocumentTabItem Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
-
-        <Setter Property="ContentTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutDocumentControl Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <!--AnchorablePaneControlStyle-->
-    <Style x:Key="AvalonDock_ThemeMetro_AnchorablePaneControlStyle" TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
-        <Setter Property="TabStripPlacement" Value="Bottom"/>
-        <Setter Property="Padding" Value="0"/>
-        <Setter Property="BorderThickness" Value="0"/>
-        <Setter Property="Foreground" Value="{Binding Model.Root.Manager.Foreground, RelativeSource={RelativeSource Self}}"/>
-        <Setter Property="Background" Value="{Binding Model.Root.Manager.Background, RelativeSource={RelativeSource Self}}"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
-                    <Grid ClipToBounds="true" SnapsToDevicePixels="true" KeyboardNavigation.TabNavigation="Local">
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="*"/>
-                            <RowDefinition Height="Auto"/>
-                        </Grid.RowDefinitions>
-                        <!--Following border is required to catch mouse events-->
-                        <Border Background="Transparent" Grid.RowSpan="2"/>
-                        <Border x:Name="ContentPanel" 
-                                BorderBrush="{TemplateBinding BorderBrush}" 
-                                BorderThickness="{TemplateBinding BorderThickness}"
-                                Background="{TemplateBinding Background}" 
-                                Grid.Column="0" 
-                                KeyboardNavigation.DirectionalNavigation="Contained"
-                                Grid.Row="0" 
-                                KeyboardNavigation.TabIndex="2" 
-                                KeyboardNavigation.TabNavigation="Cycle">
-                            <ContentPresenter x:Name="PART_SelectedContentHost"
-                                              ContentSource="SelectedContent" 
-                                              Margin="{TemplateBinding Padding}"
-                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Border>
-                        <avalonDockControls:AnchorablePaneTabPanel x:Name="HeaderPanel" Margin="0,0,2,2" IsItemsHost="true" Grid.Row="1" KeyboardNavigation.TabIndex="1" Panel.ZIndex="1"/>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="IsEnabled" Value="false">
-                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                        </Trigger>
-                        <DataTrigger Binding="{Binding Items.Count, RelativeSource={RelativeSource Self}}" Value="1">
-                            <Setter Property="Margin" Value="0" TargetName="HeaderPanel"/>
-                        </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-
-        <Setter Property="ItemContainerStyle">
-            <Setter.Value>
-                <Style TargetType="{x:Type TabItem}">
-                    <Setter Property="Background" Value="Transparent"/>
-                    <Setter Property="BorderBrush" Value="Transparent"/>
-                    <Setter Property="Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-                    <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/>
-                    <Setter Property="ToolTip" Value="{Binding ToolTip}"/>
-                    <Setter Property="Template">
-                        <Setter.Value>
-                            <ControlTemplate TargetType="{x:Type TabItem}">
-                                <Grid SnapsToDevicePixels="true">
-                                    <Border x:Name="Bd" 
-							              BorderBrush="{TemplateBinding BorderBrush}"
-                                          Margin="4"
-   				                          BorderThickness="0,2,0,0" 
-							              Background="{TemplateBinding Background}" 
-							              Padding="{TemplateBinding Padding}">
-                                        <ContentPresenter 
-								            x:Name="Content" 
-								            ContentSource="Header" 
-                                            HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" 
-                                            VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
-                                            RecognizesAccessKey="True" 
-                                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                                    </Border>
-                                </Grid>
-                                <ControlTemplate.Triggers>
-                                    <Trigger Property="Selector.IsSelected"
-								            Value="true">
-                                        <Setter Property="BorderBrush"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
-                                        <Setter Property="Panel.ZIndex" 
-                                            Value="1" />
-                                    </Trigger>
-
-                                    <DataTrigger Binding="{Binding IsActive}" Value="True">
-                                        <Setter Property="BorderBrush"
-									        Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
-                                        <Setter Property="Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-                                        <Setter Property="Panel.ZIndex" 
-                                            Value="1" />
-                                    </DataTrigger>
-                                    <MultiTrigger>
-                                        <MultiTrigger.Conditions>
-                                            <Condition Property="IsMouseOver" Value="true"/>
-                                            <Condition Property="Selector.IsSelected" Value="false"/>
-                                        </MultiTrigger.Conditions>
-                                        <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}"/>
-                                        <Setter Property="Panel.ZIndex" Value="0" />
-                                    </MultiTrigger>
-                                    <Trigger Property="IsEnabled" Value="false">
-                                        <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor13}"/>
-                                        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor9}"/>
-                                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                                    </Trigger>
-                                </ControlTemplate.Triggers>
-                            </ControlTemplate>
-                        </Setter.Value>
-                    </Setter>
-                    <Style.Triggers>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type TabControl}}, Path=Items.Count}" Value="1">
-                            <Setter Property="Visibility" Value="Collapsed"/>
-                        </DataTrigger>
-                    </Style.Triggers>
-                </Style>
-            </Setter.Value>
-        </Setter>
-
-        <Setter Property="ItemTemplate">
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Model.ChildrenCount}"
+                         Value="0">
+              <Setter Property="Visibility"
+                      Value="Collapsed"
+                      TargetName="MenuDropDownButton" />
+            </DataTrigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+    <Setter Property="ItemContainerStyle">
+      <Setter.Value>
+        <Style TargetType="{x:Type TabItem}">
+          <Setter Property="IsSelected"
+                  Value="{Binding IsSelected, Mode=TwoWay}" />
+          <Setter Property="Background"
+                  Value="Transparent" />
+          <Setter Property="BorderBrush"
+                  Value="Transparent" />
+          <Setter Property="Foreground"
+                  Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+          <Setter Property="ToolTip"
+                  Value="{Binding ToolTip}" />
+          <Setter Property="Padding"
+                  Value="4" />
+          <Setter Property="Margin"
+                  Value="2,0,2,0" />
+          <Setter Property="Template">
             <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutAnchorableTabItem Model="{Binding}"/>
-                </DataTemplate>
+              <ControlTemplate TargetType="{x:Type TabItem}">
+                <Grid SnapsToDevicePixels="true"
+                      Margin="0,4,4,4">
+                  <Border x:Name="Bd"
+                          BorderBrush="{TemplateBinding BorderBrush}"
+                          BorderThickness="0,3,0,0"
+                          Background="{TemplateBinding Background}"
+                          Padding="{TemplateBinding Padding}">
+                  </Border>
+                  <ContentPresenter x:Name="Content"
+                                    Margin="2"
+                                    ContentSource="Header"
+                                    HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                    VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                    RecognizesAccessKey="True"
+                                    SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                </Grid>
+                <ControlTemplate.Triggers>
+                  <Trigger Property="Selector.IsSelected"
+                           Value="true">
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                  </Trigger>
+
+                  <DataTrigger Binding="{Binding IsActive}"
+                               Value="True">
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                  </DataTrigger>
+
+                  <MultiTrigger>
+                    <MultiTrigger.Conditions>
+                      <Condition Property="IsMouseOver"
+                                 Value="true" />
+                      <Condition Property="Selector.IsSelected"
+                                 Value="false" />
+                    </MultiTrigger.Conditions>
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}" />
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="0" />
+                  </MultiTrigger>
+                  <Trigger Property="IsEnabled"
+                           Value="false">
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+                  </Trigger>
+                </ControlTemplate.Triggers>
+              </ControlTemplate>
             </Setter.Value>
-        </Setter>
-
-        <Setter Property="ContentTemplate">
+          </Setter>
+        </Style>
+      </Setter.Value>
+    </Setter>
+    <Setter Property="ItemTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutDocumentTabItem Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+
+    <Setter Property="ContentTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutDocumentControl Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <!--AnchorablePaneControlStyle-->
+  <Style x:Key="AvalonDock_ThemeMetro_AnchorablePaneControlStyle"
+         TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
+    <Setter Property="TabStripPlacement"
+            Value="Bottom" />
+    <Setter Property="Padding"
+            Value="0" />
+    <Setter Property="BorderThickness"
+            Value="0" />
+    <Setter Property="Foreground"
+            Value="{Binding Model.Root.Manager.Foreground, RelativeSource={RelativeSource Self}}" />
+    <Setter Property="Background"
+            Value="{Binding Model.Root.Manager.Background, RelativeSource={RelativeSource Self}}" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
+          <Grid ClipToBounds="true"
+                SnapsToDevicePixels="true"
+                KeyboardNavigation.TabNavigation="Local">
+            <Grid.RowDefinitions>
+              <RowDefinition Height="*" />
+              <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+            <!--Following border is required to catch mouse events-->
+            <Border Background="Transparent"
+                    Grid.RowSpan="2" />
+            <Border x:Name="ContentPanel"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Background="{TemplateBinding Background}"
+                    Grid.Column="0"
+                    KeyboardNavigation.DirectionalNavigation="Contained"
+                    Grid.Row="0"
+                    KeyboardNavigation.TabIndex="2"
+                    KeyboardNavigation.TabNavigation="Cycle">
+              <ContentPresenter x:Name="PART_SelectedContentHost"
+                                ContentSource="SelectedContent"
+                                Margin="{TemplateBinding Padding}"
+                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+            </Border>
+            <avalonDockControls:AnchorablePaneTabPanel x:Name="HeaderPanel"
+                                                       Margin="0,0,2,2"
+                                                       IsItemsHost="true"
+                                                       Grid.Row="1"
+                                                       KeyboardNavigation.TabIndex="1"
+                                                       Panel.ZIndex="1" />
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="IsEnabled"
+                     Value="false">
+              <Setter Property="Foreground"
+                      Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+            </Trigger>
+            <DataTrigger Binding="{Binding Items.Count, RelativeSource={RelativeSource Self}}"
+                         Value="1">
+              <Setter Property="Margin"
+                      Value="0"
+                      TargetName="HeaderPanel" />
+            </DataTrigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+
+    <Setter Property="ItemContainerStyle">
+      <Setter.Value>
+        <Style TargetType="{x:Type TabItem}">
+          <Setter Property="Background"
+                  Value="Transparent" />
+          <Setter Property="BorderBrush"
+                  Value="Transparent" />
+          <Setter Property="Foreground"
+                  Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+          <Setter Property="IsSelected"
+                  Value="{Binding IsSelected, Mode=TwoWay}" />
+          <Setter Property="ToolTip"
+                  Value="{Binding ToolTip}" />
+          <Setter Property="Template">
             <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutAnchorableControl Model="{Binding}"/>
-                </DataTemplate>
+              <ControlTemplate TargetType="{x:Type TabItem}">
+                <Grid SnapsToDevicePixels="true">
+                  <Border x:Name="Bd"
+                          BorderBrush="{TemplateBinding BorderBrush}"
+                          Margin="4"
+                          BorderThickness="0,2,0,0"
+                          Background="{TemplateBinding Background}"
+                          Padding="{TemplateBinding Padding}">
+                    <ContentPresenter x:Name="Content"
+                                      ContentSource="Header"
+                                      HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      RecognizesAccessKey="True"
+                                      SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                  </Border>
+                </Grid>
+                <ControlTemplate.Triggers>
+                  <Trigger Property="Selector.IsSelected"
+                           Value="true">
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                  </Trigger>
+
+                  <DataTrigger Binding="{Binding IsActive}"
+                               Value="True">
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                  </DataTrigger>
+                  <MultiTrigger>
+                    <MultiTrigger.Conditions>
+                      <Condition Property="IsMouseOver"
+                                 Value="true" />
+                      <Condition Property="Selector.IsSelected"
+                                 Value="false" />
+                    </MultiTrigger.Conditions>
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="0" />
+                  </MultiTrigger>
+                  <Trigger Property="IsEnabled"
+                           Value="false">
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+                  </Trigger>
+                </ControlTemplate.Triggers>
+              </ControlTemplate>
             </Setter.Value>
-        </Setter>
-    </Style>
+          </Setter>
+          <Style.Triggers>
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type TabControl}}, Path=Items.Count}"
+                         Value="1">
+              <Setter Property="Visibility"
+                      Value="Collapsed" />
+            </DataTrigger>
+          </Style.Triggers>
+        </Style>
+      </Setter.Value>
+    </Setter>
+
+    <Setter Property="ItemTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutAnchorableTabItem Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+
+    <Setter Property="ContentTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutAnchorableControl Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style TargetType="avalonDockControls:AnchorablePaneTitle">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate>
+          <Border Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}"
+                  Padding="0,3,0,0">
+            <Grid>
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                      DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+                <ContentPresenter x:Name="Header"
+                                  Margin="2,0,0,0"
+                                  TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
+                                  Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+              </avalonDockControls:DropDownControlArea>
+
+
+              <avalonDockControls:DropDownButton x:Name="MenuDropDownButton"
+                                                 VerticalAlignment="Center"
+                                                 Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
+                                                 Focusable="False"
+                                                 Grid.Column="1"
+                                                 DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                 DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
+                                                 ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
+                <Image x:Name="PART_ImgMenuPin"
+                       Source="Images/PinMenu.png" >
+                </Image>
+              </avalonDockControls:DropDownButton>
+
+              <Button x:Name="PART_AutoHidePin"
+                      Grid.Column="2"
+                      Focusable="False"
+                      Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                      VerticalAlignment="Center"
+                      HorizontalAlignment="Center"
+                      Command="{Binding Path=LayoutItem.AutoHideCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                      ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnAutoHide_Hint}">
+                <Image x:Name="PART_ImgAutoHidePin"
+                       Source="Images/PinAutoHide.png" >
+                </Image>
+              </Button>
+              <Button x:Name="PART_HidePin"
+                      Grid.Column="3"
+                      Focusable="False"
+                      Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                      VerticalAlignment="Center"
+                      HorizontalAlignment="Center"
+                      Command="{Binding Path=LayoutItem.HideCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                      ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}">
+                <Image x:Name="PART_ImgHidePin"
+                       Source="Images/PinClose.png" >
+                </Image>
+              </Button>
+
+            </Grid>
+          </Border>
+          <ControlTemplate.Triggers>
+            <DataTrigger Binding="{Binding Model.IsAutoHidden, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="LayoutTransform"
+                      TargetName="PART_AutoHidePin">
+                <Setter.Value>
+                  <RotateTransform Angle="90" />
+                </Setter.Value>
+              </Setter>
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Model.CanClose, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="Command"
+                      TargetName="PART_HidePin"
+                      Value="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}" />
+              <Setter Property="ToolTip"
+                      TargetName="PART_HidePin"
+                      Value="{x:Static avalonDockProperties:Resources.Document_Close}" />
 
-    <Style TargetType="avalonDockControls:AnchorablePaneTitle">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate>
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}"
-                            Padding="0,3,0,0">
-                        <Grid>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*"/>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <avalonDockControls:DropDownControlArea 
-                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
-                                <ContentPresenter 
-                                    x:Name="Header"            
-                                    Margin="2,0,0,0"
-                                    TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
-                                    Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                                    ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                    ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </avalonDockControls:DropDownControlArea>
-
-
-                            <avalonDockControls:DropDownButton
-                                x:Name="MenuDropDownButton"
-                                VerticalAlignment="Center"
-                                Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
-                                Focusable="False"
-                                Grid.Column="1"
-                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
-                                <Image x:Name="PART_ImgMenuPin" Source="Images/PinMenu.png"/>
-                            </avalonDockControls:DropDownButton>
-
-                            <Button x:Name="PART_AutoHidePin" 
-                                Grid.Column="2" 
-                                Focusable="False"
-                                Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                VerticalAlignment="Center"
-                                HorizontalAlignment="Center"
-                                Command="{Binding Path=LayoutItem.AutoHideCommand, RelativeSource={RelativeSource TemplatedParent}}" 
-                                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnAutoHide_Hint}"
-                                    >
-                                <Image x:Name="PART_ImgAutoHidePin" Source="Images/PinAutoHide.png"/>
-                            </Button>
-                            <Button x:Name="PART_HidePin" 
-                                Grid.Column="3" 
-                                Focusable="False"
-                                Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                VerticalAlignment="Center"
-                                HorizontalAlignment="Center"
-                                Command="{Binding Path=LayoutItem.HideCommand, RelativeSource={RelativeSource TemplatedParent}}" 
-                                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}"
-                                    >
-                                <Image x:Name="PART_ImgHidePin" Source="Images/PinClose.png"/>
-                            </Button>
-
-                        </Grid>
-                    </Border>
-                    <ControlTemplate.Triggers>
-                        <DataTrigger Binding="{Binding Model.IsAutoHidden, RelativeSource={RelativeSource Mode=Self}}" Value="True">
-                            <Setter Property="LayoutTransform" TargetName="PART_AutoHidePin">
-                                <Setter.Value>
-                                    <RotateTransform Angle="90"/>
-                                </Setter.Value>
-                            </Setter>
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}" Value="True">
-                            <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
-                            <Setter Property="BorderThickness" Value="0,3,0,0"/>
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgAutoHidePin" Value="Images/PinAutoHide_Dark.png"/>
-                            <Setter Property="Source" TargetName="PART_ImgHidePin" Value="Images/PinClose_Dark.png"/>
-                            <Setter Property="Source" TargetName="PART_ImgMenuPin" Value="Images/PinMenu_Dark.png"/>
-                        </DataTrigger>
-                        <Trigger Property="IsMouseOver" SourceName="MenuDropDownButton" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgMenuPin" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsChecked" SourceName="MenuDropDownButton" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgMenuPin" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_AutoHidePin" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgAutoHidePin" Value="Images/PinAutoHide_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_HidePin" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgHidePin" Value="Images/PinClose_Black.png"/>
-                        </Trigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorSideTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorSideControl}">
-        <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
-            <ItemsControl.ItemsPanel>
-                <ItemsPanelTemplate>
-                    <StackPanel 
-                        MinWidth="4"
-                        MinHeight="4"
-                        Orientation="{Binding Path=Model.Side, RelativeSource={RelativeSource AncestorType={x:Type avalonDockControls:LayoutAnchorSideControl}, Mode=FindAncestor}, Converter={StaticResource AnchorSideToOrientationConverter}}"/>
-                </ItemsPanelTemplate>
-            </ItemsControl.ItemsPanel>
-        </ItemsControl>
-    </ControlTemplate>
-
-    <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorGroupTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorGroupControl}">
-        <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
-            <ItemsControl.LayoutTransform>
-                <RotateTransform Angle="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Model.Parent.Side, Converter={StaticResource AnchorSideToAngleConverter}}"/>
-            </ItemsControl.LayoutTransform>
-            <ItemsControl.ItemsPanel>
-                <ItemsPanelTemplate>
-                    <StackPanel Orientation="Horizontal"/>
-                </ItemsPanelTemplate>
-            </ItemsControl.ItemsPanel>
-        </ItemsControl>
-    </ControlTemplate>
-
-    <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorControl}">
-        <Border 
-            x:Name="Bd"
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="BorderBrush"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+              <Setter Property="BorderThickness"
+                      Value="0,3,0,0" />
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgAutoHidePin"
+                      Value="Images/PinAutoHide_Dark.png" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgHidePin"
+                      Value="Images/PinClose_Dark.png" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgMenuPin"
+                      Value="Images/PinMenu_Dark.png" />
+            </DataTrigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="MenuDropDownButton"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgMenuPin"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsChecked"
+                     SourceName="MenuDropDownButton"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgMenuPin"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_AutoHidePin"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgAutoHidePin"
+                      Value="Images/PinAutoHide_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_HidePin"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgHidePin"
+                      Value="Images/PinClose_Black.png" />
+            </Trigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorSideTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorSideControl}">
+    <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
+      <ItemsControl.ItemsPanel>
+        <ItemsPanelTemplate>
+          <StackPanel MinWidth="4"
+                      MinHeight="4"
+                      Orientation="{Binding Path=Model.Side, RelativeSource={RelativeSource AncestorType={x:Type avalonDockControls:LayoutAnchorSideControl}, Mode=FindAncestor}, Converter={StaticResource AnchorSideToOrientationConverter}}" />
+        </ItemsPanelTemplate>
+      </ItemsControl.ItemsPanel>
+    </ItemsControl>
+  </ControlTemplate>
+
+  <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorGroupTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorGroupControl}">
+    <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
+      <ItemsControl.LayoutTransform>
+        <RotateTransform Angle="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Model.Parent.Side, Converter={StaticResource AnchorSideToAngleConverter}}" />
+      </ItemsControl.LayoutTransform>
+      <ItemsControl.ItemsPanel>
+        <ItemsPanelTemplate>
+          <StackPanel Orientation="Horizontal" />
+        </ItemsPanelTemplate>
+      </ItemsControl.ItemsPanel>
+    </ItemsControl>
+  </ControlTemplate>
+
+  <ControlTemplate x:Key="AvalonDock_ThemeMetro_AnchorTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorControl}">
+    <Border x:Name="Bd"
             BorderThickness="0,2,0,0"
             BorderBrush="{TemplateBinding BorderBrush}"
             Margin="4"
             Padding="2">
-                <ContentPresenter 
-                    TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
-                    Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                    ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                    ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"/>
-        </Border>
-        <ControlTemplate.Triggers>
-            <Trigger Property="Side" Value="Right">
-                <Setter Property="BorderThickness" Value="0,0,0,2" TargetName="Bd"/>
-            </Trigger>
-            <Trigger Property="Side" Value="Bottom">
-                <Setter Property="BorderThickness" Value="0,2,0,0" TargetName="Bd"/>
-            </Trigger>
-            <Trigger Property="Side" Value="Top">
-                <Setter Property="BorderThickness" Value="0,0,0,2" TargetName="Bd"/>
-            </Trigger>            
-            <MultiTrigger>
-                <MultiTrigger.Conditions>
-                    <Condition Property="IsMouseOver" Value="true"/>
-                    <Condition Property="Selector.IsSelected" Value="false"/>
-                </MultiTrigger.Conditions>
-                <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}"/>
-            </MultiTrigger>
-            <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}" Value="true">
-                <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}"/>
-            </DataTrigger>
-        </ControlTemplate.Triggers>
-    </ControlTemplate>
-
-    <Style x:Key="{x:Type avalonDockControls:OverlayWindow}" TargetType="{x:Type avalonDockControls:OverlayWindow}">
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:OverlayWindow}">
-                    <Canvas x:Name="PART_DropTargetsContainer" Opacity="0.9">
-                        <Path x:Name="PART_PreviewBox" Fill="AliceBlue" StrokeThickness="2" Stroke="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
-                        <Grid x:Name="PART_DockingManagerDropTargets" >
-                            <Image x:Name="PART_DockingManagerDropTargetLeft" VerticalAlignment="Center" HorizontalAlignment="Left" Source="Images/DockAnchorableLeft.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetRight" VerticalAlignment="Center" HorizontalAlignment="Right" Source="Images/DockAnchorableRight.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetBottom" VerticalAlignment="Bottom" HorizontalAlignment="Center" Source="Images/DockAnchorableBottom.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetTop" VerticalAlignment="Top" HorizontalAlignment="Center" Source="Images/DockAnchorableTop.PNG" Stretch="None"/>
-                        </Grid>
-                        <Grid x:Name="PART_AnchorablePaneDropTargets">
-                            <Grid Width="112" Height="112" VerticalAlignment="Center" HorizontalAlignment="Center">
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Image Grid.ColumnSpan="3" Grid.RowSpan="3" Source="Images/DockPaneEmpty.png" Stretch="None" Margin="0,0.5,0,-0.5"/>
-                                <Border Name="PART_AnchorablePaneDropTargetTop" Grid.Column="1" Grid.Row="0" Margin="0,3.5,0, 0">
-                                    <Image Source="Images/DockDocumentAsAnchorableTop.png"  Stretch="None" />
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetRight" Grid.Column="2" Grid.Row="1" Margin="2">
-                                    <Image Source="Images/DockDocumentAsAnchorableRight.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetBottom" Grid.Column="1" Grid.Row="2" Margin="0,-0.5,0,0">
-                                    <Image Source="Images/DockDocumentAsAnchorableBottom.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetLeft" Grid.Column="0" Grid.Row="1" Margin="2">
-                                    <Image Source="Images/DockDocumentAsAnchorableLeft.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetInto" Grid.Column="1" Grid.Row="1" Margin="0,0.5,0,0">
-                                    <Image Source="Images/DockDocumentInside.png"  Stretch="None"/>
-                                </Border>
-                            </Grid>
-                        </Grid>
-                        <Grid x:Name="PART_DocumentPaneDropTargets">
-                            <Grid Width="112" Height="112" VerticalAlignment="Center" HorizontalAlignment="Center">
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Image Grid.ColumnSpan="3" Grid.RowSpan="3" Source="Images/DockPaneEmpty.PNG"  Stretch="None"/>
-                                <Border Name="PART_DocumentPaneDropTargetTop" Grid.Column="1" Grid.Row="0" Margin="2">
-                                    <Image Source="Images/DockDocumentTop.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetRight" Grid.Column="2" Grid.Row="1" Margin="2">
-                                    <Image Source="Images/DockDocumentRight.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetBottom" Grid.Column="1" Grid.Row="2" Margin="2">
-                                    <Image Source="Images/DockDocumentBottom.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetLeft" Grid.Column="0" Grid.Row="1" Margin="2">
-                                    <Image Source="Images/DockDocumentLeft.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetInto" Grid.Column="1" Grid.Row="1">
-                                    <Image Source="Images/DockDocumentInside.png"  Stretch="None"/>
-                                </Border>
-                            </Grid>
-                        </Grid>
-
-                        <Grid x:Name="PART_DocumentPaneFullDropTargets">
-                            <Grid Width="184" Height="184" VerticalAlignment="Center" HorizontalAlignment="Center">
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Image Grid.ColumnSpan="5" Grid.RowSpan="5" Source="Images/DockPaneLargeEmpty.PNG"  Stretch="None"/>
-                                <Border Name="PART_DocumentPaneFullDropTargetTop" Grid.Column="2" Grid.Row="1">
-                                    <Image Source="Images/DockDocumentTop.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneFullDropTargetRight" Grid.Column="3" Grid.Row="2">
-                                    <Image Source="Images/DockDocumentRight.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneFullDropTargetBottom" Grid.Column="2" Grid.Row="3">
-                                    <Image Source="Images/DockDocumentBottom.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneFullDropTargetLeft" Grid.Column="1" Grid.Row="2">
-                                    <Image Source="Images/DockDocumentLeft.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneFullDropTargetInto" Grid.Column="2" Grid.Row="2">
-                                    <Image Source="Images/DockDocumentInside.png"  Stretch="None"/>
-                                </Border>
-
-                                <Border Name="PART_DocumentPaneDropTargetTopAsAnchorablePane" Grid.Column="2" Grid.Row="0">
-                                    <Image Source="Images/DockDocumentAsAnchorableTop.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetRightAsAnchorablePane" Grid.Column="4" Grid.Row="2">
-                                    <Image Source="Images/DockDocumentAsAnchorableRight.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetBottomAsAnchorablePane" Grid.Column="2" Grid.Row="4">
-                                    <Image Source="Images/DockDocumentAsAnchorableBottom.png"  Stretch="None" Margin="2"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetLeftAsAnchorablePane" Grid.Column="0" Grid.Row="2">
-                                    <Image Source="Images/DockDocumentAsAnchorableLeft.png"  Stretch="None" Margin="2"/>
-                                </Border>
-
-                            </Grid>
-                        </Grid>
-
-                    </Canvas>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <DataTemplate x:Key="AvalonDock_ThemeMetro_DocumentHeaderTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis"/>
-    </DataTemplate>
-
-    <DataTemplate x:Key="AvalonDock_ThemeMetro_AnchorableHeaderTemplate">
-        <Grid>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="Auto"/>
-                <ColumnDefinition/>
-            </Grid.ColumnDefinitions>
-            <Image x:Name="icon" Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="Uniform"/>
-            <TextBlock x:Name="title" Margin="4,0,0,0" Text="{Binding Title}" TextTrimming="CharacterEllipsis" Grid.Column="1"/>
-        </Grid>
-        <DataTemplate.Triggers>
-            <DataTrigger Binding="{Binding IconSource}" Value="{x:Null}">
-                <Setter Property="Margin" Value="0" TargetName="title"/>
-            </DataTrigger>
-        </DataTemplate.Triggers>
-    </DataTemplate>
-
-    <DataTemplate x:Key="AvalonDock_ThemeMetro_DocumentTitleTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis" VerticalAlignment="Center"/>
-    </DataTemplate>
-
-    <DataTemplate x:Key="AvalonDock_ThemeMetro_AnchorableTitleTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis" VerticalAlignment="Center"/>
-    </DataTemplate>
-
-    <DataTemplate x:Key="AvalonDock_ThemeMetro_IconContentTemplate">
-        <Image Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="Uniform"/>
-    </DataTemplate>
-
-    <ContextMenu x:Key="AvalonDock_ThemeMetro_AnchorableContextMenu">
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Float}" 
-                Command="{Binding Path=FloatCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Dock}" 
-                Command="{Binding Path=DockCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_DockAsDocument}" 
-                Command="{Binding Path=DockAsDocumentCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_AutoHide}" 
-                Command="{Binding Path=AutoHideCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Hide}" 
-                Command="{Binding Path=HideCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-    </ContextMenu>
-
-    <ContextMenu x:Key="AvalonDock_ThemeMetro_DocumentContextMenu">
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}" 
-                  Command="{Binding Path=CloseCommand}"
-                  Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAllButThis}" 
-                Command="{Binding Path=CloseAllButThisCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Float}" 
-                Command="{Binding Path=FloatCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_DockAsDocument}" 
-                Command="{Binding Path=DockAsDocumentCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewHorizontalTabGroup}" 
-                Command="{Binding Path=NewHorizontalTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}">
-            <MenuItem.Icon>
-                <Image Source="Images/HTabGroup.png" Stretch="Uniform" Width="14"/>
-            </MenuItem.Icon>
-        </MenuItem>
-
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewVerticalTabGroup}" 
-                Command="{Binding Path=NewVerticalTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}">
-            <MenuItem.Icon>
-                <Image Source="Images/VTabGroup.png" Stretch="Uniform" Width="14"/>
-            </MenuItem.Icon>
-        </MenuItem>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToNextTabGroup}" 
-                Command="{Binding Path=MoveToNextTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToPreviousTabGroup}" 
-                Command="{Binding Path=MoveToPreviousTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-    </ContextMenu>
-
-    <!--DockingManager-->
-    <Style x:Key="{x:Type avalonDock:DockingManager}" TargetType="{x:Type avalonDock:DockingManager}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}"/>
-        <Setter Property="DocumentPaneControlStyle" Value="{StaticResource AvalonDock_ThemeMetro_DocumentPaneControlStyle}"/>
-        <Setter Property="AnchorablePaneControlStyle" Value="{StaticResource AvalonDock_ThemeMetro_AnchorablePaneControlStyle}"/>
-        <Setter Property="AnchorSideTemplate" Value="{StaticResource AvalonDock_ThemeMetro_AnchorSideTemplate}"/>
-        <Setter Property="AnchorGroupTemplate" Value="{StaticResource AvalonDock_ThemeMetro_AnchorGroupTemplate}"/>
-        <Setter Property="AnchorTemplate" Value="{StaticResource AvalonDock_ThemeMetro_AnchorTemplate}"/>
-        <Setter Property="DocumentHeaderTemplate" Value="{StaticResource AvalonDock_ThemeMetro_DocumentHeaderTemplate}"/>
-        <Setter Property="AnchorableHeaderTemplate" Value="{StaticResource AvalonDock_ThemeMetro_AnchorableHeaderTemplate}"/>
-        <Setter Property="DocumentTitleTemplate" Value="{StaticResource AvalonDock_ThemeMetro_DocumentTitleTemplate}"/>
-        <Setter Property="AnchorableTitleTemplate" Value="{StaticResource AvalonDock_ThemeMetro_AnchorableTitleTemplate}"/>
-        <Setter Property="AnchorableContextMenu" Value="{StaticResource AvalonDock_ThemeMetro_AnchorableContextMenu}"/>
-        <Setter Property="DocumentContextMenu" Value="{StaticResource AvalonDock_ThemeMetro_DocumentContextMenu}"/>
-        <Setter Property="DocumentPaneMenuItemHeaderTemplate" Value="{StaticResource AvalonDock_ThemeMetro_DocumentHeaderTemplate}"/>
-        <Setter Property="IconContentTemplate" Value="{StaticResource AvalonDock_ThemeMetro_IconContentTemplate}"/>
-        <Setter Property="GridSplitterWidth" Value="5"/>
-        <Setter Property="GridSplitterHeight" Value="5"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDock:DockingManager}">
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <Grid>
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="Auto"/>
-                                <RowDefinition Height="*"/>
-                                <RowDefinition Height="Auto"/>
-                            </Grid.RowDefinitions>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="*"/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <ContentPresenter Content="{TemplateBinding LayoutRootPanel}" Grid.Column="1" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding RightSidePanel}" Grid.Column="2" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding LeftSidePanel}" Grid.Column="0" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding TopSidePanel}" Grid.Column="1" Grid.Row="0"/>
-                            <ContentPresenter Content="{TemplateBinding BottomSidePanel}" Grid.Column="1" Grid.Row="2"/>
-                            <ContentPresenter 
-                                x:Name="PART_AutoHideArea"
+      <ContentPresenter TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
+                        Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                        ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
+                        ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+    </Border>
+    <ControlTemplate.Triggers>
+      <Trigger Property="Side"
+               Value="Right">
+        <Setter Property="BorderThickness"
+                Value="0,0,0,2"
+                TargetName="Bd" />
+      </Trigger>
+      <Trigger Property="Side"
+               Value="Bottom">
+        <Setter Property="BorderThickness"
+                Value="0,2,0,0"
+                TargetName="Bd" />
+      </Trigger>
+      <Trigger Property="Side"
+               Value="Top">
+        <Setter Property="BorderThickness"
+                Value="0,0,0,2"
+                TargetName="Bd" />
+      </Trigger>
+      <MultiTrigger>
+        <MultiTrigger.Conditions>
+          <Condition Property="IsMouseOver"
+                     Value="true" />
+          <Condition Property="Selector.IsSelected"
+                     Value="false" />
+        </MultiTrigger.Conditions>
+        <Setter Property="BorderBrush"
+                Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor4}" />
+      </MultiTrigger>
+      <DataTrigger Binding="{Binding Model.IsActive, RelativeSource={RelativeSource Mode=Self}}"
+                   Value="true">
+        <Setter Property="BorderBrush"
+                Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+      </DataTrigger>
+    </ControlTemplate.Triggers>
+  </ControlTemplate>
+
+  <Style x:Key="{x:Type avalonDockControls:OverlayWindow}"
+         TargetType="{x:Type avalonDockControls:OverlayWindow}">
+    <Setter Property="Background"
+            Value="Transparent" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:OverlayWindow}">
+          <Canvas x:Name="PART_DropTargetsContainer"
+                  Opacity="0.9">
+            <Path x:Name="PART_PreviewBox"
+                  Fill="AliceBlue"
+                  StrokeThickness="2"
+                  Stroke="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+            <Grid x:Name="PART_DockingManagerDropTargets">
+              <Image x:Name="PART_DockingManagerDropTargetLeft"
+                     VerticalAlignment="Center"
+                     HorizontalAlignment="Left"
+                     Source="Images/DockAnchorableLeft.PNG"
+                     Stretch="None" >
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetRight"
+                     VerticalAlignment="Center"
+                     HorizontalAlignment="Right"
+                     Source="Images/DockAnchorableRight.PNG"
+                     Stretch="None" >
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetBottom"
+                     VerticalAlignment="Bottom"
+                     HorizontalAlignment="Center"
+                     Source="Images/DockAnchorableBottom.PNG"
+                     Stretch="None" >
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetTop"
+                     VerticalAlignment="Top"
+                     HorizontalAlignment="Center"
+                     Source="Images/DockAnchorableTop.PNG"
+                     Stretch="None" >
+              </Image>
+            </Grid>
+            <Grid x:Name="PART_AnchorablePaneDropTargets">
+              <Grid Width="112"
+                    Height="112"
+                    VerticalAlignment="Center"
+                    HorizontalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Image Grid.ColumnSpan="3"
+                       Grid.RowSpan="3"
+                       Source="Images/DockPaneEmpty.png"
+                       Stretch="None"
+                       Margin="0,0.5,0,-0.5" >
+                </Image>
+                <Border Name="PART_AnchorablePaneDropTargetTop"
+                        Grid.Column="1"
+                        Grid.Row="0"
+                        Margin="0,3.5,0, 0">
+                  <Image Source="Images/DockDocumentAsAnchorableTop.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetRight"
+                        Grid.Column="2"
+                        Grid.Row="1"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentAsAnchorableRight.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetBottom"
+                        Grid.Column="1"
+                        Grid.Row="2"
+                        Margin="0,-0.5,0,0">
+                  <Image Source="Images/DockDocumentAsAnchorableBottom.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetLeft"
+                        Grid.Column="0"
+                        Grid.Row="1"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentAsAnchorableLeft.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetInto"
+                        Grid.Column="1"
+                        Grid.Row="1"
+                        Margin="0,0.5,0,0">
+                  <Image Source="Images/DockDocumentInside.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+              </Grid>
+            </Grid>
+            <Grid x:Name="PART_DocumentPaneDropTargets">
+              <Grid Width="112"
+                    Height="112"
+                    VerticalAlignment="Center"
+                    HorizontalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Image Grid.ColumnSpan="3"
+                       Grid.RowSpan="3"
+                       Source="Images/DockPaneEmpty.PNG"
+                       Stretch="None" >
+                </Image>
+                <Border Name="PART_DocumentPaneDropTargetTop"
+                        Grid.Column="1"
+                        Grid.Row="0"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentTop.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetRight"
+                        Grid.Column="2"
+                        Grid.Row="1"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentRight.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetBottom"
+                        Grid.Column="1"
+                        Grid.Row="2"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentBottom.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetLeft"
+                        Grid.Column="0"
+                        Grid.Row="1"
+                        Margin="2">
+                  <Image Source="Images/DockDocumentLeft.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetInto"
+                        Grid.Column="1"
+                        Grid.Row="1">
+                  <Image Source="Images/DockDocumentInside.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+              </Grid>
+            </Grid>
+
+            <Grid x:Name="PART_DocumentPaneFullDropTargets">
+              <Grid Width="184"
+                    Height="184"
+                    VerticalAlignment="Center"
+                    HorizontalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Image Grid.ColumnSpan="5"
+                       Grid.RowSpan="5"
+                       Source="Images/DockPaneLargeEmpty.PNG"
+                       Stretch="None" >
+                </Image>
+                <Border Name="PART_DocumentPaneFullDropTargetTop"
+                        Grid.Column="2"
+                        Grid.Row="1">
+                  <Image Source="Images/DockDocumentTop.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneFullDropTargetRight"
+                        Grid.Column="3"
+                        Grid.Row="2">
+                  <Image Source="Images/DockDocumentRight.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneFullDropTargetBottom"
+                        Grid.Column="2"
+                        Grid.Row="3">
+                  <Image Source="Images/DockDocumentBottom.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneFullDropTargetLeft"
+                        Grid.Column="1"
+                        Grid.Row="2">
+                  <Image Source="Images/DockDocumentLeft.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneFullDropTargetInto"
+                        Grid.Column="2"
+                        Grid.Row="2">
+                  <Image Source="Images/DockDocumentInside.png"
+                         Stretch="None" >
+                  </Image>
+                </Border>
+
+                <Border Name="PART_DocumentPaneDropTargetTopAsAnchorablePane"
+                        Grid.Column="2"
+                        Grid.Row="0">
+                  <Image Source="Images/DockDocumentAsAnchorableTop.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetRightAsAnchorablePane"
+                        Grid.Column="4"
+                        Grid.Row="2">
+                  <Image Source="Images/DockDocumentAsAnchorableRight.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetBottomAsAnchorablePane"
+                        Grid.Column="2"
+                        Grid.Row="4">
+                  <Image Source="Images/DockDocumentAsAnchorableBottom.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetLeftAsAnchorablePane"
+                        Grid.Column="0"
+                        Grid.Row="2">
+                  <Image Source="Images/DockDocumentAsAnchorableLeft.png"
+                         Stretch="None"
+                         Margin="2" >
+                  </Image>
+                </Border>
+
+              </Grid>
+            </Grid>
+
+          </Canvas>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <DataTemplate x:Key="AvalonDock_ThemeMetro_DocumentHeaderTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis" >
+    </TextBlock>
+  </DataTemplate>
+
+  <DataTemplate x:Key="AvalonDock_ThemeMetro_AnchorableHeaderTemplate">
+    <Grid>
+      <Grid.ColumnDefinitions>
+        <ColumnDefinition Width="Auto" />
+        <ColumnDefinition />
+      </Grid.ColumnDefinitions>
+      <Image x:Name="icon"
+             Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+             Stretch="Uniform" >
+      </Image>
+      <TextBlock x:Name="title"
+                 Margin="4,0,0,0"
+                 Text="{Binding Title}"
+                 TextTrimming="CharacterEllipsis"
+                 Grid.Column="1" >
+      </TextBlock>
+    </Grid>
+    <DataTemplate.Triggers>
+      <DataTrigger Binding="{Binding IconSource}"
+                   Value="{x:Null}">
+        <Setter Property="Margin"
+                Value="0"
+                TargetName="title" />
+      </DataTrigger>
+    </DataTemplate.Triggers>
+  </DataTemplate>
+
+  <DataTemplate x:Key="AvalonDock_ThemeMetro_DocumentTitleTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis"
+               VerticalAlignment="Center" >
+    </TextBlock>
+  </DataTemplate>
+
+  <DataTemplate x:Key="AvalonDock_ThemeMetro_AnchorableTitleTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis"
+               VerticalAlignment="Center" >
+    </TextBlock>
+  </DataTemplate>
+
+  <DataTemplate x:Key="AvalonDock_ThemeMetro_IconContentTemplate">
+    <Image Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+           Stretch="Uniform" >
+    </Image>
+  </DataTemplate>
+
+  <ContextMenu x:Key="AvalonDock_ThemeMetro_AnchorableContextMenu">
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Float}"
+              Command="{Binding Path=FloatCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Dock}"
+              Command="{Binding Path=DockCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_DockAsDocument}"
+              Command="{Binding Path=DockAsDocumentCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_AutoHide}"
+              Command="{Binding Path=AutoHideCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}"
+              Command="{Binding Path=CloseCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Hide}"
+              Command="{Binding Path=HideCommand}">
+      <MenuItem.Visibility>
+        <MultiBinding Converter="{StaticResource AnchorableContextMenuHideVisibilityConverter}">
+          <Binding Path="IsEnabled"
+                   RelativeSource="{RelativeSource Self}"
+                   Mode="OneWay"
+                   Converter="{StaticResource BoolToVisibilityConverter}" />
+          <Binding Path="CanClose" />
+        </MultiBinding>
+      </MenuItem.Visibility>
+    </MenuItem>
+  </ContextMenu>
+
+  <ContextMenu x:Key="AvalonDock_ThemeMetro_DocumentContextMenu">
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}"
+              Command="{Binding Path=CloseCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAllButThis}"
+              Command="{Binding Path=CloseAllButThisCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAll}"
+              Command="{Binding Path=CloseAllCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Float}"
+              Command="{Binding Path=FloatCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_DockAsDocument}"
+              Command="{Binding Path=DockAsDocumentCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewHorizontalTabGroup}"
+              Command="{Binding Path=NewHorizontalTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}">
+      <MenuItem.Icon>
+        <Image Source="Images/HTabGroup.png"
+               Stretch="Uniform"
+               Width="14" />
+      </MenuItem.Icon>
+    </MenuItem>
+
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewVerticalTabGroup}"
+              Command="{Binding Path=NewVerticalTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}">
+      <MenuItem.Icon>
+        <Image Source="Images/VTabGroup.png"
+               Stretch="Uniform"
+               Width="14" />
+      </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToNextTabGroup}"
+              Command="{Binding Path=MoveToNextTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToPreviousTabGroup}"
+              Command="{Binding Path=MoveToPreviousTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+  </ContextMenu>
+
+  <!--DockingManager-->
+  <Style x:Key="{x:Type avalonDock:DockingManager}"
+         TargetType="{x:Type avalonDock:DockingManager}">
+    <Setter Property="Background"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
+    <Setter Property="DocumentPaneControlStyle"
+            Value="{StaticResource AvalonDock_ThemeMetro_DocumentPaneControlStyle}" />
+    <Setter Property="AnchorablePaneControlStyle"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorablePaneControlStyle}" />
+    <Setter Property="AnchorSideTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorSideTemplate}" />
+    <Setter Property="AnchorGroupTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorGroupTemplate}" />
+    <Setter Property="AnchorTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorTemplate}" />
+    <Setter Property="DocumentHeaderTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_DocumentHeaderTemplate}" />
+    <Setter Property="AnchorableHeaderTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorableHeaderTemplate}" />
+    <Setter Property="DocumentTitleTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_DocumentTitleTemplate}" />
+    <Setter Property="AnchorableTitleTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorableTitleTemplate}" />
+    <Setter Property="AnchorableContextMenu"
+            Value="{StaticResource AvalonDock_ThemeMetro_AnchorableContextMenu}" />
+    <Setter Property="DocumentContextMenu"
+            Value="{StaticResource AvalonDock_ThemeMetro_DocumentContextMenu}" />
+    <Setter Property="DocumentPaneMenuItemHeaderTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_DocumentHeaderTemplate}" />
+    <Setter Property="IconContentTemplate"
+            Value="{StaticResource AvalonDock_ThemeMetro_IconContentTemplate}" />
+    <Setter Property="GridSplitterWidth"
+            Value="5" />
+    <Setter Property="GridSplitterHeight"
+            Value="5" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDock:DockingManager}">
+          <Border Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <Grid>
+              <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+                <RowDefinition Height="Auto" />
+              </Grid.RowDefinitions>
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <ContentPresenter Content="{TemplateBinding LayoutRootPanel}"
+                                Grid.Column="1"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding RightSidePanel}"
+                                Grid.Column="2"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding LeftSidePanel}"
+                                Grid.Column="0"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding TopSidePanel}"
+                                Grid.Column="1"
+                                Grid.Row="0" />
+              <ContentPresenter Content="{TemplateBinding BottomSidePanel}"
+                                Grid.Column="1"
+                                Grid.Row="2" />
+              <ContentPresenter x:Name="PART_AutoHideArea"
                                 Content="{TemplateBinding AutoHideWindow}"
                                 VerticalAlignment="{TemplateBinding VerticalAlignment}"
                                 HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
-                                Grid.Column="1" Grid.Row="1"/>
-                        </Grid>
-                    </Border>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <!--LayoutGridResizerControl-->
-    <Style x:Key="{x:Type avalonDockControls:LayoutGridResizerControl}" TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor7}"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
-                    <Border Background="{TemplateBinding Background}" Margin="2"/>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <Style TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                     <ContentPresenter Content="{Binding LayoutItem.View.Content, RelativeSource={RelativeSource TemplatedParent}}"
-                                       ContentTemplate="{Binding LayoutItem.View.ContentTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                       ContentTemplateSelector="{Binding LayoutItem.View.ContentTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
-                  </Border>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <Style TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
-                    <avalonDockControls:DropDownControlArea 
-                            DropDownContextMenu="{Binding Root.Manager.DocumentContextMenu}"
-                            DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}" >
-                        <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}"
-                            Padding="0,2,0,1">
-                            <Grid>
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="*"/>
-                                    <ColumnDefinition Width="Auto"/>
-                                </Grid.ColumnDefinitions>
-                                <Border Grid.ColumnSpan="2" Background="Transparent"/>
-                                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                                              ContentTemplate="{Binding DocumentHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                                              ContentTemplateSelector="{Binding DocumentHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"/>
-                                <!-- Close button should be moved out to the container style -->
-                                <Button 
-                                    x:Name="DocumentCloseButton" 
-                                    Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                    VerticalAlignment="Center"
-                                    HorizontalAlignment="Center"
-                                    Grid.Column="1" 
-                                    Margin="5,0,0,0" 
-                                    Visibility="Hidden" 
-                                    Command="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                    ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}">
-                                    <Image x:Name="PART_ImgPinClose" 
-                                           Source="Images/PinClose.png"/>
-                                </Button>
-                            </Grid>
-                        </Border>
-                    </avalonDockControls:DropDownControlArea>
-                    <ControlTemplate.Triggers>
-                        <DataTrigger Binding="{Binding Path=IsSelected}" Value="true">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Path=IsLastFocusedDocument}" Value="true">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
-                            <Setter Property="Source" Value="Images/PinClose_Dark.png" TargetName="PART_ImgPinClose"  />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Path=IsActive}" Value="true">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
-                            <Setter Property="Source" Value="Images/PinClose_Dark.png" TargetName="PART_ImgPinClose"  />
-                        </DataTrigger>
-                        <Trigger Property="IsMouseOver" Value="True">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
-                        </Trigger>
-                        <DataTrigger Binding="{Binding Path=CanClose}" Value="false">
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="DocumentCloseButton"  />
-                        </DataTrigger>
-                        <Trigger Property="IsMouseOver" SourceName="DocumentCloseButton" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinClose" Value="Images/PinClose_Black.png"/>
-                        </Trigger>
-
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
-                    <avalonDockControls:DropDownControlArea 
-                            DropDownContextMenu="{Binding Root.Manager.AnchorableContextMenu}"
-                            DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
-                        <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                            <Grid>
-                                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                                          ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                                          ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"/>
-                                <avalonDockControls:DropDownControlArea 
-                                Grid.Column="0"
-                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                DropDownContextMenuDataContext="{Binding Path=Model, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </Grid>
-                        </Border>
-                    </avalonDockControls:DropDownControlArea>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                                Grid.Column="1"
+                                Grid.Row="1" />
+            </Grid>
+          </Border>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <!--LayoutGridResizerControl-->
+  <Style x:Key="{x:Type avalonDockControls:LayoutGridResizerControl}"
+         TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
+    <Setter Property="Background"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor7}" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
+          <Border Background="{TemplateBinding Background}"
+                  Margin="2" />
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
+          <Border Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <ContentPresenter Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}"
+                              ContentTemplate="{Binding LayoutItem.View.ContentTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                              ContentTemplateSelector="{Binding LayoutItem.View.ContentTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+          </Border>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
+          <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Root.Manager.DocumentContextMenu}"
+                                                  DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+            <Border Background="{TemplateBinding Background}"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Padding="0,2,0,1">
+              <Grid>
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition Width="*" />
+                  <ColumnDefinition Width="Auto" />
+                </Grid.ColumnDefinitions>
+                <Border Grid.ColumnSpan="2"
+                        Background="Transparent" />
+                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplate="{Binding DocumentHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
+                                  ContentTemplateSelector="{Binding DocumentHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+                <!-- Close button should be moved out to the container style -->
+                <Button x:Name="DocumentCloseButton"
+                        Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                        VerticalAlignment="Center"
+                        HorizontalAlignment="Center"
+                        Grid.Column="1"
+                        Margin="5,0,0,0"
+                        Visibility="Hidden"
+                        Command="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                        ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}">
+                  <Image x:Name="PART_ImgPinClose"
+                         Source="Images/PinClose.png" >
+                  </Image>
+                </Button>
+              </Grid>
+            </Border>
+          </avalonDockControls:DropDownControlArea>
+          <ControlTemplate.Triggers>
+            <DataTrigger Binding="{Binding Path=IsSelected}"
+                         Value="true">
+              <Setter Property="Visibility"
+                      Value="Visible"
+                      TargetName="DocumentCloseButton" />
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Path=IsLastFocusedDocument}"
+                         Value="true">
+              <Setter Property="Visibility"
+                      Value="Visible"
+                      TargetName="DocumentCloseButton" />
+              <Setter Property="Source"
+                      Value="Images/PinClose_Dark.png"
+                      TargetName="PART_ImgPinClose" />
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Path=IsActive}"
+                         Value="true">
+              <Setter Property="Visibility"
+                      Value="Visible"
+                      TargetName="DocumentCloseButton" />
+              <Setter Property="Source"
+                      Value="Images/PinClose_Dark.png"
+                      TargetName="PART_ImgPinClose" />
+            </DataTrigger>
+            <Trigger Property="IsMouseOver"
+                     Value="True">
+              <Setter Property="Visibility"
+                      Value="Visible"
+                      TargetName="DocumentCloseButton" />
+            </Trigger>
+            <DataTrigger Binding="{Binding Path=CanClose}"
+                         Value="false">
+              <Setter Property="Visibility"
+                      Value="Collapsed"
+                      TargetName="DocumentCloseButton" />
+            </DataTrigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="DocumentCloseButton"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinClose"
+                      Value="Images/PinClose_Black.png" />
+            </Trigger>
 
-    <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
-                    <Border 
-                        x:Name="Bd"
-                        Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <Grid>
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="Auto"/>
-                                <RowDefinition Height="*"/>
-                            </Grid.RowDefinitions>
-                            <Border x:Name="Header"
-                                Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor16}">
-                                <avalonDockControls:AnchorablePaneTitle 
-                                    Model="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </Border>
-                            <ContentPresenter 
-                                Grid.Row="1"
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
+          <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Root.Manager.AnchorableContextMenu}"
+                                                  DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+            <Border Background="{TemplateBinding Background}"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}">
+              <Grid>
+                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
+                                  ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+                <avalonDockControls:DropDownControlArea Grid.Column="0"
+                                                        DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                        DropDownContextMenuDataContext="{Binding Path=Model, RelativeSource={RelativeSource TemplatedParent}}" >
+                </avalonDockControls:DropDownControlArea>
+              </Grid>
+            </Border>
+          </avalonDockControls:DropDownControlArea>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
+          <Border x:Name="Bd"
+                  Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <Grid>
+              <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+              </Grid.RowDefinitions>
+              <Border x:Name="Header">
+                <avalonDockControls:AnchorablePaneTitle Model="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" />
+              </Border>
+              <ContentPresenter Grid.Row="1"
                                 FlowDirection="{TemplateBinding FlowDirection}"
-                                Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}"/>
+                                Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}" />
 
-                            <!--<ContentPresenter 
+              <!--<ContentPresenter 
                                 Content="{Binding Model.Content, RelativeSource={RelativeSource TemplatedParent}}" 
                                 ContentTemplate="{Binding LayoutItemTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
                                 ContentTemplateSelector="{Binding LayoutItemTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
                                 Grid.Row="1"/>-->
-                        </Grid>
-                    </Border>
-                    <ControlTemplate.Triggers>
-                        <MultiDataTrigger>
-                            <MultiDataTrigger.Conditions>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.IsFloating}" Value="True"/>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.Parent.IsDirectlyHostedInFloatingWindow}" Value="True"/>
-                            </MultiDataTrigger.Conditions>
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="Header"/>
-                        </MultiDataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <Style x:Key="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}" TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}"/>
-        <Setter Property="BorderBrush" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor6}"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
-            <Setter.Value>
-                <shell:WindowChrome
-                    CornerRadius="0"
-                    ResizeBorderThickness="10"
-                    CaptionHeight="24"
-                    GlassFrameThickness="0"
-                    ShowSystemMenu="False"/>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" 
-                                Background="{TemplateBinding Background}"
-                                BorderBrush="{TemplateBinding BorderBrush}"
-                                BorderThickness="1">
-                            <Grid>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition Height="24"/>
-                                    <RowDefinition Height="*"/>
-                                </Grid.RowDefinitions>
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="Auto"/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-
-                                <Border x:Name="bd" Width="5" VerticalAlignment="Stretch" Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}"/>
-
-                                <Border x:Name="Header"
-                                        Padding="2,0,2,0"
-                                        Grid.Column="1">
-                                    <Grid>
-                                        <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="*"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                        </Grid.ColumnDefinitions>
-                                        <ContentPresenter
-                                            Content="{Binding Model.RootDocument, RelativeSource={RelativeSource TemplatedParent}}" 
-                                            ContentTemplate="{Binding Model.Root.Manager.DocumentTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ContentTemplateSelector="{Binding Model.Root.Manager.DocumentTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-
-
-                                        <avalonDockControls:DropDownButton
-                                            x:Name="ContextMenuDropdownButton"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
-                                            Focusable="False"
-                                            Grid.Column="1"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            VerticalContentAlignment="Center"
-                                            HorizontalContentAlignment="Center"
-                                            DropDownContextMenu="{Binding Model.Root.Manager.DocumentContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                            DropDownContextMenuDataContext="{Binding Path=RootDocumentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Document_CxMenu_Hint}">
-                                            <Image x:Name="PART_ImgPinMenu" Stretch="None" Source="Images/PinMenu.png" Width="13"/>
-                                        </avalonDockControls:DropDownButton>
-
-                                        <Button 
-                                            x:Name="PART_PinMaximize"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
-                                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
-                                            Grid.Column="2">
-                                            <Image x:Name="PART_ImgPinMaximize" Source="Images/PinMaximize.png" Width="13" />
-                                        </Button>
-
-                                        <Button 
-                                            x:Name="PART_PinRestore"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
-                                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
-                                            Grid.Column="2">
-                                            <Image x:Name="PART_ImgPinRestore" Source="Images/PinRestore.png" Width="13" />
-                                        </Button>
-
-                                        <Button 
-                                            x:Name="PART_PinClose"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Command="{Binding Path=RootDocumentLayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}"
-                                            Grid.Column="3">
-                                            <Image x:Name="PART_ImgPinClose" Source="Images/PinClose.png" Width="13" />
-                                        </Button>
-                                    </Grid>
-                                </Border>
-                                <ContentPresenter Content="{TemplateBinding Content}" Grid.Row="1" Grid.ColumnSpan="2"/>
-                            </Grid>
-                        </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="WindowState" Value="Maximized">
-                            <Setter Property="Padding" Value="3" TargetName="WindowBorder"/>
-                        </Trigger>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.RootDocument.IsActive}" Value="True">
-                            <Setter 
-                                TargetName="bd"
-                                Property="Background"
-								Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
-                            <Setter 
-                                TargetName="Header"
-                                Property="Background"
-								Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
-                            <Setter 
-                                TargetName="Header"
-                                Property="TextElement.Foreground"
-								Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
-                        </DataTrigger>
-
-                        <Trigger Property="IsMouseOver" SourceName="ContextMenuDropdownButton" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMenu" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsChecked" SourceName="ContextMenuDropdownButton" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMenu" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinMaximize" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMaximize" Value="Images/PinMaximize_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinRestore" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinRestore" Value="Images/PinRestore_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinClose" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinClose" Value="Images/PinClose_Black.png"/>
-                        </Trigger>                        
-
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-
-            </Setter.Value>
-        </Setter>
-    </Style>
+            </Grid>
+          </Border>
+          <ControlTemplate.Triggers>
+            <MultiDataTrigger>
+              <MultiDataTrigger.Conditions>
+                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.IsFloating}"
+                           Value="True" />
+                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.Parent.IsDirectlyHostedInFloatingWindow}"
+                           Value="True" />
+              </MultiDataTrigger.Conditions>
+              <Setter Property="Visibility"
+                      Value="Collapsed"
+                      TargetName="Header" />
+            </MultiDataTrigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style x:Key="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}"
+         TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
+    <Setter Property="Background"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
+    <Setter Property="BorderBrush"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor6}" />
+    <Setter Property="BorderThickness"
+            Value="1" />
+    <Setter Property="shell:WindowChrome.WindowChrome">
+      <Setter.Value>
+        <shell:WindowChrome CornerRadius="0"
+                            ResizeBorderThickness="10"
+                            CaptionHeight="24"
+                            GlassFrameThickness="0"
+                            ShowSystemMenu="False" />
+      </Setter.Value>
+    </Setter>
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
+          <Grid>
+            <Border x:Name="WindowBorder"
+                    Background="{TemplateBinding Background}"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}">
+              <Grid>
+                <Grid.RowDefinitions>
+                  <RowDefinition Height="24" />
+                  <RowDefinition Height="*" />
+                </Grid.RowDefinitions>
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition Width="Auto" />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+
+                <Border x:Name="bd"
+                        Width="5"
+                        VerticalAlignment="Stretch"
+                        Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor5}" />
+
+                <Border x:Name="Header"
+                        Padding="2,0,2,0"
+                        Grid.Column="1">
+                  <Grid>
+                    <Grid.ColumnDefinitions>
+                      <ColumnDefinition Width="*" />
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <ContentPresenter Content="{Binding Model.RootDocument, RelativeSource={RelativeSource TemplatedParent}}"
+                                      ContentTemplate="{Binding Model.Root.Manager.DocumentTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                      ContentTemplateSelector="{Binding Model.Root.Manager.DocumentTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+
+
+                    <avalonDockControls:DropDownButton x:Name="ContextMenuDropdownButton"
+                                                       shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                                       Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
+                                                       Focusable="False"
+                                                       Grid.Column="1"
+                                                       VerticalAlignment="Center"
+                                                       HorizontalAlignment="Center"
+                                                       VerticalContentAlignment="Center"
+                                                       HorizontalContentAlignment="Center"
+                                                       DropDownContextMenu="{Binding Model.Root.Manager.DocumentContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                       DropDownContextMenuDataContext="{Binding Path=RootDocumentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
+                                                       ToolTip="{x:Static avalonDockProperties:Resources.Document_CxMenu_Hint}">
+                      <Image x:Name="PART_ImgPinMenu"
+                             Stretch="None"
+                             Source="Images/PinMenu.png"
+                             Width="13">
+                      </Image>
+                    </avalonDockControls:DropDownButton>
+
+                    <Button x:Name="PART_PinMaximize"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
+                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
+                            Grid.Column="2">
+                      <Image x:Name="PART_ImgPinMaximize"
+                             Source="Images/PinMaximize.png"
+                             Width="13" >
+                      </Image>
+                    </Button>
+
+                    <Button x:Name="PART_PinRestore"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
+                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
+                            Grid.Column="2">
+                      <Image x:Name="PART_ImgPinRestore"
+                             Source="Images/PinRestore.png"
+                             Width="13" >
+                      </Image>
+                    </Button>
+
+                    <Button x:Name="PART_PinClose"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                            Command="{Binding Path=RootDocumentLayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}"
+                            Grid.Column="3">
+                      <Image x:Name="PART_ImgPinClose"
+                             Source="Images/PinClose.png"
+                             Width="13" >
+                      </Image>
+                    </Button>
+                  </Grid>
+                </Border>
+                <ContentPresenter Content="{TemplateBinding Content}"
+                                  Grid.Row="1"
+                                  Grid.ColumnSpan="2" />
+              </Grid>
+            </Border>
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="WindowState"
+                     Value="Maximized">
+              <Setter Property="Padding"
+                      Value="3"
+                      TargetName="WindowBorder" />
+            </Trigger>
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.RootDocument.IsActive}"
+                         Value="True">
+              <Setter TargetName="bd"
+                      Property="Background"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+              <Setter TargetName="Header"
+                      Property="Background"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" />
+              <Setter TargetName="Header"
+                      Property="TextElement.Foreground"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
+            </DataTrigger>
 
-    <Style x:Key="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}" TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
-            <Setter.Value>
-                <shell:WindowChrome
-                    CornerRadius="0"
-                    ResizeBorderThickness="10"
-                    CaptionHeight="24"
-                    GlassFrameThickness="0"/>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" 
-                                BorderThickness="1"
-                                Background="{TemplateBinding Background}"
-                                BorderBrush="{DynamicResource AvalonDock_ThemeMetro_BaseColor6}">
-                            <Grid >
-                                <Grid.RowDefinitions>
-                                    <RowDefinition Height="24"/>
-                                    <RowDefinition Height="*"/>
-                                </Grid.RowDefinitions>
-                                <Border x:Name="Header" 
-                                        Padding="2,0,2,0"
-                                        TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
-                                        Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}">
-                                    <Grid>
-                                        <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="*"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition Width="Auto"/>
-                                        </Grid.ColumnDefinitions>
-
-                                        <Border
-                                            Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}">
-                                            <avalonDockControls:DropDownControlArea 
-                                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                                DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
-                                                    <ContentPresenter
-                                                      Content="{Binding Model.SinglePane.SelectedContent, RelativeSource={RelativeSource TemplatedParent}}" 
-                                                      ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                                      ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-                                            </avalonDockControls:DropDownControlArea>
-                                        </Border>
-
-                                        <avalonDockControls:DropDownButton
-                                            x:Name="SinglePaneContextMenu"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
-                                            Focusable="False"
-                                            Grid.Column="1"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            VerticalContentAlignment="Center"
-                                            HorizontalContentAlignment="Center"
-                                            DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                            DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
-                                            <Image x:Name="PART_ImgPinMenu" Stretch="None" Source="Images/PinMenu.png" Width="13"/>
-                                        </avalonDockControls:DropDownButton>
-
-                                        <Button 
-                                            x:Name="PART_PinMaximize"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            VerticalContentAlignment="Center"
-                                            HorizontalContentAlignment="Center"
-                                            Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
-                                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
-                                            Grid.Column="2">
-                                            <Image x:Name="PART_ImgPinMaximize" Source="Images/PinMaximize.png" Width="13"/>
-                                        </Button>
-
-                                        <Button 
-                                            x:Name="PART_PinRestore"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
-                                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
-                                            Grid.Column="2">
-                                            <Image  x:Name="PART_ImgPinRestore" Source="Images/PinRestore.png" Width="13"/>
-                                        </Button>
-
-                                        <Button 
-                                            x:Name="PART_PinClose"
-                                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
-                                            VerticalAlignment="Center"
-                                            HorizontalAlignment="Center"
-                                            Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Command="{Binding HideWindowCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}"
-                                            Grid.Column="3">
-                                            <Image x:Name="PART_ImgPinClose" Source="Images/PinClose.png" Width="13"/>
-                                        </Button>
-                                    </Grid>
-                                </Border>
-                                <ContentPresenter
-                                    Content="{TemplateBinding Content}" Grid.Row="1"/>
-                            </Grid>
-                        </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="WindowState" Value="Maximized">
-                            <Setter Property="Padding" Value="3" TargetName="WindowBorder"/>
-                        </Trigger>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SinglePane.SelectedContent.IsActive}" Value="True">
-                            <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}" TargetName="Header"/>
-                            <Setter Property="TextElement.Foreground" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" TargetName="Header"/>
-                            <Setter Property="Source" TargetName="PART_ImgPinClose" Value="Images/PinClose_Dark.png"/>
-                            <Setter Property="Source" TargetName="PART_ImgPinRestore" Value="Images/PinRestore_Dark.png"/>
-                            <Setter Property="Source" TargetName="PART_ImgPinMaximize" Value="Images/PinMaximize_Dark.png"/>
-                            <Setter Property="Source" TargetName="PART_ImgPinMenu" Value="Images/PinMenu_Dark.png"/>
-                        </DataTrigger>
-                        <Trigger Property="IsMouseOver" SourceName="SinglePaneContextMenu" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMenu" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsChecked" SourceName="SinglePaneContextMenu" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMenu" Value="Images/PinMenu_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinMaximize" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinMaximize" Value="Images/PinMaximize_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinRestore" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinRestore" Value="Images/PinRestore_Black.png"/>
-                        </Trigger>
-                        <Trigger Property="IsMouseOver" SourceName="PART_PinClose" Value="True">
-                            <Setter Property="Source" TargetName="PART_ImgPinClose" Value="Images/PinClose_Black.png"/>
-                        </Trigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+            <Trigger Property="IsMouseOver"
+                     SourceName="ContextMenuDropdownButton"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMenu"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsChecked"
+                     SourceName="ContextMenuDropdownButton"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMenu"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinMaximize"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMaximize"
+                      Value="Images/PinMaximize_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinRestore"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinRestore"
+                      Value="Images/PinRestore_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinClose"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinClose"
+                      Value="Images/PinClose_Black.png" />
+            </Trigger>
 
-    <Style x:Key="{x:Type avalonDockControls:LayoutAutoHideWindowControl}" TargetType="{x:Type avalonDockControls:LayoutAutoHideWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}"/>
-    </Style>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style x:Key="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}"
+         TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
+    <Setter Property="Background"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
+    <Setter Property="BorderBrush"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor6}" />
+    <Setter Property="BorderThickness"
+            Value="1" />
+    <Setter Property="shell:WindowChrome.WindowChrome">
+      <Setter.Value>
+        <shell:WindowChrome CornerRadius="0"
+                            ResizeBorderThickness="10"
+                            CaptionHeight="24"
+                            GlassFrameThickness="0" />
+      </Setter.Value>
+    </Setter>
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
+          <Grid>
+            <Border x:Name="WindowBorder"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Background="{TemplateBinding Background}"
+                    BorderBrush="{TemplateBinding BorderBrush}">
+              <Grid>
+                <Grid.RowDefinitions>
+                  <RowDefinition Height="24" />
+                  <RowDefinition Height="*" />
+                </Grid.RowDefinitions>
+                <Border x:Name="Header"
+                        Padding="2,0,2,0"
+                        TextElement.Foreground="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
+                        Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}">
+                  <Grid>
+                    <Grid.ColumnDefinitions>
+                      <ColumnDefinition Width="*" />
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+
+                    <Border Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}">
+                      <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                              DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+                        <ContentPresenter Content="{Binding Model.SinglePane.SelectedContent, RelativeSource={RelativeSource TemplatedParent}}"
+                                          ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                          ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+                      </avalonDockControls:DropDownControlArea>
+                    </Border>
 
+                    <avalonDockControls:DropDownButton x:Name="SinglePaneContextMenu"
+                                                       shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                                       Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                                                       Style="{StaticResource AvalonDock_ThemeMetro_ToolButtonStyle}"
+                                                       Focusable="False"
+                                                       Grid.Column="1"
+                                                       VerticalAlignment="Center"
+                                                       HorizontalAlignment="Center"
+                                                       VerticalContentAlignment="Center"
+                                                       HorizontalContentAlignment="Center"
+                                                       DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                       DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
+                                                       ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
+                      <Image x:Name="PART_ImgPinMenu"
+                             Stretch="None"
+                             Source="Images/PinMenu.png"
+                             Width="13" >
+                      </Image>
+                    </avalonDockControls:DropDownButton>
+
+                    <Button x:Name="PART_PinMaximize"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            VerticalAlignment="Center"
+                            HorizontalAlignment="Center"
+                            VerticalContentAlignment="Center"
+                            HorizontalContentAlignment="Center"
+                            Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
+                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
+                            Grid.Column="2">
+                      <Image x:Name="PART_ImgPinMaximize"
+                             Source="Images/PinMaximize.png"
+                             Width="13" >
+                      </Image>
+                    </Button>
+
+                    <Button x:Name="PART_PinRestore"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            VerticalAlignment="Center"
+                            HorizontalAlignment="Center"
+                            Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
+                            CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
+                            Grid.Column="2">
+                      <Image  x:Name="PART_ImgPinRestore"
+                              Source="Images/PinRestore.png"
+                              Width="13" >
+                      </Image>
+                    </Button>
+
+                    <Button x:Name="PART_PinClose"
+                            shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                            Focusable="False"
+                            Style="{StaticResource AvalonDock_ThemeMetro_ButtonStyle}"
+                            VerticalAlignment="Center"
+                            HorizontalAlignment="Center"
+                            Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                            Command="{Binding HideWindowCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                            ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}"
+                            Grid.Column="3">
+                      <Image x:Name="PART_ImgPinClose"
+                             Source="Images/PinClose.png"
+                             Width="13" >
+                      </Image>
+                    </Button>
+                  </Grid>
+                </Border>
+                <ContentPresenter Content="{TemplateBinding Content}"
+                                  Grid.Row="1" />
+              </Grid>
+            </Border>
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="WindowState"
+                     Value="Maximized">
+              <Setter Property="Padding"
+                      Value="3"
+                      TargetName="WindowBorder" />
+            </Trigger>
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.SinglePane.SelectedContent.IsActive}"
+                         Value="True">
+              <Setter Property="Background"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor3}"
+                      TargetName="Header" />
+              <Setter Property="TextElement.Foreground"
+                      Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}"
+                      TargetName="Header" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinClose"
+                      Value="Images/PinClose_Dark.png" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinRestore"
+                      Value="Images/PinRestore_Dark.png" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMaximize"
+                      Value="Images/PinMaximize_Dark.png" />
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMenu"
+                      Value="Images/PinMenu_Dark.png" />
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Model.SinglePane.SelectedContent.CanClose, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="Command"
+                      TargetName="PART_PinClose"
+                      Value="{Binding CloseWindowCommand, RelativeSource={RelativeSource TemplatedParent}}" />
+              <Setter Property="ToolTip"
+                      TargetName="PART_PinClose"
+                      Value="{x:Static avalonDockProperties:Resources.Document_Close}" />
 
-    <Style x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemFocusVisual">
-        <Setter Property="Control.Template">
-            <Setter.Value>
-                <ControlTemplate>
-                    <Rectangle RadiusY="2" RadiusX="2" Stroke="#8E6EA6F5" StrokeThickness="1"/>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-    <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemHoverFill" EndPoint="0,1" StartPoint="0,0">
-        <GradientStop Color="#FFF1FBFF" Offset="0"/>
-        <GradientStop Color="#FFD5F1FE" Offset="1"/>
-    </LinearGradientBrush>
-    <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill" EndPoint="0,1" StartPoint="0,0">
-        <GradientStop Color="#FFD9F4FF" Offset="0"/>
-        <GradientStop Color="#FF9BDDFB" Offset="1"/>
-    </LinearGradientBrush>
-    <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedInactiveFill" EndPoint="0,1" StartPoint="0,0">
-        <GradientStop Color="#FFEEEDED" Offset="0"/>
-        <GradientStop Color="#FFDDDDDD" Offset="1"/>
-    </LinearGradientBrush>
-    <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedHoverFill" EndPoint="0,1" StartPoint="0,0">
-        <GradientStop Color="#FFEAF9FF" Offset="0"/>
-        <GradientStop Color="#FFC9EDFD" Offset="1"/>
-    </LinearGradientBrush>
-
-    <Style x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle" TargetType="ListBoxItem">
-        <Setter Property="FocusVisualStyle" Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemFocusVisual}"/>
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="BorderBrush" Value="Transparent"/>
-        <Setter Property="BorderThickness" Value="1"/>
-        <Setter Property="Padding" Value="5,0,5,0"/>
-        <Setter Property="VerticalContentAlignment" Value="Center"/>
-        <Setter Property="Cursor" Value="Hand"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="ListBoxItem">
-                    <Border BorderBrush="{TemplateBinding BorderBrush}" 
-                            BorderThickness="{TemplateBinding BorderThickness}" 
-                            Background="{TemplateBinding Background}" 
-                            SnapsToDevicePixels="true">
-                        <Border x:Name="InnerBorder" BorderThickness="1" >
-                            <Grid>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition MaxHeight="11"/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Rectangle x:Name="UpperHighlight" Fill="#75FFFFFF" Visibility="Collapsed"/>
-                                <ContentPresenter Grid.RowSpan="2" 
-                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" 
-                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
-                            </Grid>
-                        </Border>
-                    </Border>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="IsMouseOver" Value="true">
-                            <Setter Property="Background" Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill}"/>
-                            <Setter Property="BorderBrush" Value="#FF98DDFB"/>
-                            <Setter Property="BorderBrush" TargetName="InnerBorder" Value="#80FFFFFF"/>
-                            <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/>
-                            <Setter Property="Fill" TargetName="UpperHighlight" Value="#40FFFFFF"/>
-                        </Trigger>
-                        <Trigger Property="IsSelected" Value="true">
-                            <Setter Property="Background" Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill}"/>
-                            <Setter Property="BorderBrush" Value="#FF98DDFB"/>
-                            <Setter Property="BorderBrush" TargetName="InnerBorder" Value="#80FFFFFF"/>
-                            <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/>
-                            <Setter Property="Fill" TargetName="UpperHighlight" Value="#40FFFFFF"/>
-                        </Trigger>
-                        <!--<MultiTrigger>
+            </DataTrigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="SinglePaneContextMenu"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMenu"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsChecked"
+                     SourceName="SinglePaneContextMenu"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMenu"
+                      Value="Images/PinMenu_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinMaximize"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinMaximize"
+                      Value="Images/PinMaximize_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinRestore"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinRestore"
+                      Value="Images/PinRestore_Black.png" />
+            </Trigger>
+            <Trigger Property="IsMouseOver"
+                     SourceName="PART_PinClose"
+                     Value="True">
+              <Setter Property="Source"
+                      TargetName="PART_ImgPinClose"
+                      Value="Images/PinClose_Black.png" />
+            </Trigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style x:Key="{x:Type avalonDockControls:LayoutAutoHideWindowControl}"
+         TargetType="{x:Type avalonDockControls:LayoutAutoHideWindowControl}">
+    <Setter Property="Background"
+            Value="{DynamicResource AvalonDock_ThemeMetro_BaseColor1}" />
+  </Style>
+
+
+  <Style x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemFocusVisual">
+    <Setter Property="Control.Template">
+      <Setter.Value>
+        <ControlTemplate>
+          <Rectangle RadiusY="2"
+                     RadiusX="2"
+                     Stroke="#8E6EA6F5"
+                     StrokeThickness="1" />
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+  <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemHoverFill"
+                       EndPoint="0,1"
+                       StartPoint="0,0">
+    <GradientStop Color="#FFF1FBFF"
+                  Offset="0" />
+    <GradientStop Color="#FFD5F1FE"
+                  Offset="1" />
+  </LinearGradientBrush>
+  <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill"
+                       EndPoint="0,1"
+                       StartPoint="0,0">
+    <GradientStop Color="#FFD9F4FF"
+                  Offset="0" />
+    <GradientStop Color="#FF9BDDFB"
+                  Offset="1" />
+  </LinearGradientBrush>
+  <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedInactiveFill"
+                       EndPoint="0,1"
+                       StartPoint="0,0">
+    <GradientStop Color="#FFEEEDED"
+                  Offset="0" />
+    <GradientStop Color="#FFDDDDDD"
+                  Offset="1" />
+  </LinearGradientBrush>
+  <LinearGradientBrush x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedHoverFill"
+                       EndPoint="0,1"
+                       StartPoint="0,0">
+    <GradientStop Color="#FFEAF9FF"
+                  Offset="0" />
+    <GradientStop Color="#FFC9EDFD"
+                  Offset="1" />
+  </LinearGradientBrush>
+
+  <Style x:Key="AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle"
+         TargetType="ListBoxItem">
+    <Setter Property="FocusVisualStyle"
+            Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemFocusVisual}" />
+    <Setter Property="Background"
+            Value="Transparent" />
+    <Setter Property="BorderBrush"
+            Value="Transparent" />
+    <Setter Property="BorderThickness"
+            Value="1" />
+    <Setter Property="Padding"
+            Value="5,0,5,0" />
+    <Setter Property="VerticalContentAlignment"
+            Value="Center" />
+    <Setter Property="Cursor"
+            Value="Hand" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="ListBoxItem">
+          <Border BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}"
+                  Background="{TemplateBinding Background}"
+                  SnapsToDevicePixels="true">
+            <Border x:Name="InnerBorder"
+                    BorderThickness="1">
+              <Grid>
+                <Grid.RowDefinitions>
+                  <RowDefinition MaxHeight="11" />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Rectangle x:Name="UpperHighlight"
+                           Fill="#75FFFFFF"
+                           Visibility="Collapsed" />
+                <ContentPresenter Grid.RowSpan="2"
+                                  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
+                                  VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
+              </Grid>
+            </Border>
+          </Border>
+          <ControlTemplate.Triggers>
+            <Trigger Property="IsMouseOver"
+                     Value="true">
+              <Setter Property="Background"
+                      Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill}" />
+              <Setter Property="BorderBrush"
+                      Value="#FF98DDFB" />
+              <Setter Property="BorderBrush"
+                      TargetName="InnerBorder"
+                      Value="#80FFFFFF" />
+              <Setter Property="Visibility"
+                      TargetName="UpperHighlight"
+                      Value="Visible" />
+              <Setter Property="Fill"
+                      TargetName="UpperHighlight"
+                      Value="#40FFFFFF" />
+            </Trigger>
+            <Trigger Property="IsSelected"
+                     Value="true">
+              <Setter Property="Background"
+                      Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedFill}" />
+              <Setter Property="BorderBrush"
+                      Value="#FF98DDFB" />
+              <Setter Property="BorderBrush"
+                      TargetName="InnerBorder"
+                      Value="#80FFFFFF" />
+              <Setter Property="Visibility"
+                      TargetName="UpperHighlight"
+                      Value="Visible" />
+              <Setter Property="Fill"
+                      TargetName="UpperHighlight"
+                      Value="#40FFFFFF" />
+            </Trigger>
+            <!--<MultiTrigger>
                             <MultiTrigger.Conditions>
                                 <Condition Property="IsSelected" Value="true"/>
                                 <Condition Property="IsMouseOver" Value="true"/>
@@ -1382,149 +1856,180 @@
                             <Setter Property="Background" Value="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemSelectedHoverFill}"/>
                             <Setter Property="BorderBrush" Value="#FF98DDFB"/>
                         </MultiTrigger>-->
-                        <Trigger Property="IsEnabled" Value="false">
-                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                        </Trigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
-
-    <Style x:Key="{x:Type avalonDockControls:NavigatorWindow}" TargetType="{x:Type avalonDockControls:NavigatorWindow}">
-        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
-        <Setter Property="SizeToContent" Value="WidthAndHeight"/>
-        <Setter Property="ResizeMode" Value="NoResize"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
+            <Trigger Property="IsEnabled"
+                     Value="false">
+              <Setter Property="Foreground"
+                      Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+            </Trigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
+
+  <Style x:Key="{x:Type avalonDockControls:NavigatorWindow}"
+         TargetType="{x:Type avalonDockControls:NavigatorWindow}">
+    <Setter Property="Background"
+            Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
+    <Setter Property="SizeToContent"
+            Value="WidthAndHeight" />
+    <Setter Property="ResizeMode"
+            Value="NoResize" />
+    <!--<Setter Property="shell:WindowChrome.WindowChrome">
             <Setter.Value>
                 <shell:WindowChrome
                     ResizeBorderThickness="10"
                     CaptionHeight="16"
                     GlassFrameThickness="4"/>
             </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:NavigatorWindow}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" BorderThickness="1"
-                                Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor2}"
-                                BorderBrush="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}">
+        </Setter>-->
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:NavigatorWindow}">
+          <Grid>
+            <Border x:Name="WindowBorder"
+                    BorderThickness="1"
+                    Background="White"
+                    BorderBrush="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}">
+              <Grid>
+                <Grid.RowDefinitions>
+                  <RowDefinition Height="54" />
+                  <RowDefinition Height="*" />
+                  <RowDefinition Height="Auto" />
+                </Grid.RowDefinitions>
+
+                <Grid Margin="5">
+                  <Grid.RowDefinitions>
+                    <RowDefinition />
+                    <RowDefinition />
+                  </Grid.RowDefinitions>
+                  <Grid>
+                    <Grid.ColumnDefinitions>
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition />
+                    </Grid.ColumnDefinitions>
+                    <Image Source="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                           Stretch="None"
+                           Visibility="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource BoolToVisibilityConverter} }" >
+                    </Image>
+                    <TextBlock Text="{Binding SelectedDocument.LayoutElement.Title}"
+                               TextTrimming="CharacterEllipsis"
+                               Grid.Column="1"
+                               VerticalAlignment="Center"
+                               FontWeight="Bold"
+                               Margin="4,0,0,0" >
+                    </TextBlock>
+                  </Grid>
+                  <TextBlock Text="{Binding SelectedDocument.LayoutElement.Description}"
+                             TextTrimming="CharacterEllipsis"
+                             VerticalAlignment="Center" >
+                  </TextBlock>
+                </Grid>
+
+                <Border Grid.Row="1"
+                        BorderThickness="0,1,0,0"
+                        Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor7}"
+                        MinHeight="200">
+                  <Grid  Margin="5">
+                    <Grid.ColumnDefinitions>
+                      <ColumnDefinition Width="Auto" />
+                      <ColumnDefinition />
+                    </Grid.ColumnDefinitions>
+                    <Grid Margin="5">
+                      <Grid.RowDefinitions>
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition />
+                      </Grid.RowDefinitions>
+                      <TextBlock Text="Active Tool Windows"
+                                 FontWeight="Bold"
+                                 Margin="0,3,0,4" >
+                      </TextBlock>
+                      <ListBox Grid.Row="1"
+                               ItemsSource="{Binding Anchorables}"
+                               SelectedItem="{Binding SelectedAnchorable, Mode=TwoWay}"
+                               ItemContainerStyle="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle}"
+                               Background="Transparent"
+                               BorderThickness="0"
+                               MaxHeight="400">
+                        <ListBox.ItemTemplate>
+                          <DataTemplate>
                             <Grid>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition Height="54"/>
-                                    <RowDefinition Height="*"/>
-                                    <RowDefinition Height="Auto"/>
-                                </Grid.RowDefinitions>
-
-                                <Grid Margin="5">
-                                    <Grid.RowDefinitions>
-                                        <RowDefinition/>
-                                        <RowDefinition/>
-                                    </Grid.RowDefinitions>
-                                    <Grid>
-                                        <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition/>
-                                        </Grid.ColumnDefinitions>
-                                        <Image 
-                                            Source="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
-                                            Stretch="None"
-                                            Visibility="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource BoolToVisibilityConverter} }"/>
-                                        <TextBlock Text="{Binding SelectedDocument.LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" VerticalAlignment="Center" FontWeight="Bold" Margin="4,0,0,0"/>
-                                    </Grid>
-                                    <TextBlock Text="{Binding SelectedDocument.LayoutElement.Description}" TextTrimming="CharacterEllipsis" VerticalAlignment="Center"/>
-                                </Grid>
-
-                                <Border Grid.Row="1" 
-                                        BorderBrush="{DynamicResource AvalonDock_ThemeMetro_BaseColor11}"
-                                        BorderThickness="0,1,0,0"
-                                        Background="{DynamicResource AvalonDock_ThemeMetro_BaseColor7}"
-                                        MinHeight="200" >
-                                    <Grid  Margin="5">
-                                        <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition/>
-                                        </Grid.ColumnDefinitions>
-                                        <Grid Margin="5">
-                                            <Grid.RowDefinitions>
-                                                <RowDefinition Height="Auto"/>
-                                                <RowDefinition/>
-                                            </Grid.RowDefinitions>
-                                            <TextBlock Text="Active Tool Windows" FontWeight="Bold" Margin="0,3,0,4"/>
-                                            <ListBox Grid.Row="1" 
-                                                     ItemsSource="{Binding Anchorables}"
-                                                     SelectedItem="{Binding SelectedAnchorable, Mode=TwoWay}" 
-                                                     ItemContainerStyle="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle}"
-                                                     Background="Transparent" 
-                                                     BorderThickness="0"
-                                                     MaxHeight="400">
-                                                <ListBox.ItemTemplate>
-                                                    <DataTemplate>
-                                                        <Grid>
-                                                            <Grid.ColumnDefinitions>
-                                                                <ColumnDefinition Width="16"/>
-                                                                <ColumnDefinition Width="150"/>
-                                                            </Grid.ColumnDefinitions>
-                                                            <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="None"/>
-                                                            <TextBlock Text="{Binding LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" Margin="4,0,0,0"/>
-                                                        </Grid>
-                                                    </DataTemplate>
-                                                </ListBox.ItemTemplate>
-                                            </ListBox>
-                                        </Grid>
-                                        <Grid Grid.Column="1" Margin="5">
-                                            <Grid.RowDefinitions>
-                                                <RowDefinition Height="Auto"/>
-                                                <RowDefinition/>
-                                            </Grid.RowDefinitions>
-                                            <TextBlock Text="Active Files" FontWeight="Bold" Margin="0,3,0,4"/>
-                                            <ListBox 
-                                                Grid.Row="1" 
-                                                ItemsSource="{Binding Documents}" 
-                                                SelectedItem="{Binding SelectedDocument, Mode=TwoWay}" 
-                                                ItemContainerStyle="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle}"
-                                                Background="Transparent" 
-                                                BorderThickness="0" 
-                                                MaxHeight="400">
-                                                <ListBox.ItemTemplate>
-                                                    <DataTemplate>
-                                                        <Grid>
-                                                            <Grid.ColumnDefinitions>
-                                                                <ColumnDefinition Width="16"/>
-                                                                <ColumnDefinition Width="150"/>
-                                                            </Grid.ColumnDefinitions>
-                                                            <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="None"/>
-                                                            <TextBlock Text="{Binding LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" Margin="4,0,0,0"/>
-                                                        </Grid>
-                                                    </DataTemplate>
-                                                </ListBox.ItemTemplate>
-                                                <ListBox.ItemsPanel>
-                                                    <ItemsPanelTemplate>
-                                                        <WrapPanel Orientation="Vertical"/>
-                                                    </ItemsPanelTemplate>
-                                                </ListBox.ItemsPanel>
-                                            </ListBox>
-                                        </Grid>
-                                    </Grid>
-                                </Border>
-
-                                <Grid Grid.Row="2" Margin="5">
-                                    <TextBlock Text="{Binding SelectedDocument.LayoutElement.ToolTip}" VerticalAlignment="Center"/>
-                                </Grid>
+                              <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="16" />
+                                <ColumnDefinition Width="150" />
+                              </Grid.ColumnDefinitions>
+                              <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                                     Stretch="None" >
+                              </Image>
+                              <TextBlock Text="{Binding LayoutElement.Title}"
+                                         TextTrimming="CharacterEllipsis"
+                                         Grid.Column="1"
+                                         Margin="4,0,0,0" >
+                              </TextBlock>
                             </Grid>
-                        </Border>
+                          </DataTemplate>
+                        </ListBox.ItemTemplate>
+                      </ListBox>
                     </Grid>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-
-    </Style>
+                    <Grid Grid.Column="1"
+                          Margin="5">
+                      <Grid.RowDefinitions>
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition />
+                      </Grid.RowDefinitions>
+                      <TextBlock Text="Active Files"
+                                 FontWeight="Bold"
+                                 Margin="0,3,0,4" >
+                      </TextBlock>
+                      <ListBox Grid.Row="1"
+                               ItemsSource="{Binding Documents}"
+                               SelectedItem="{Binding SelectedDocument, Mode=TwoWay}"
+                               ItemContainerStyle="{StaticResource AvalonDock_ThemeMetro_NavigatorWindowListBoxItemStyle}"
+                               Background="Transparent"
+                               BorderThickness="0"
+                               MaxHeight="400">
+                        <ListBox.ItemTemplate>
+                          <DataTemplate>
+                            <Grid>
+                              <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="16" />
+                                <ColumnDefinition Width="150" />
+                              </Grid.ColumnDefinitions>
+                              <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                                     Stretch="None" >
+                              </Image>
+                              <TextBlock Text="{Binding LayoutElement.Title}"
+                                         TextTrimming="CharacterEllipsis"
+                                         Grid.Column="1"
+                                         Margin="4,0,0,0" >
+                              </TextBlock>
+                            </Grid>
+                          </DataTemplate>
+                        </ListBox.ItemTemplate>
+                        <ListBox.ItemsPanel>
+                          <ItemsPanelTemplate>
+                            <WrapPanel Orientation="Vertical" />
+                          </ItemsPanelTemplate>
+                        </ListBox.ItemsPanel>
+                      </ListBox>
+                    </Grid>
+                  </Grid>
+                </Border>
+
+                <Grid Grid.Row="2"
+                      Margin="5">
+                  <TextBlock Text="{Binding SelectedDocument.LayoutElement.ToolTip}"
+                             VerticalAlignment="Center">
+                  </TextBlock>
+                </Grid>
+              </Grid>
+            </Border>
+          </Grid>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+
+  </Style>
 
-    <!--
-      Re-styling this in AvalonDock since the menu on the drop-down button for more documents is otherwise black
-      BugFix for Issue http://avalondock.codeplex.com/workitem/15743
-      -->
-    <Style TargetType="{x:Type avalonDockControls:ContextMenuEx}" BasedOn="{StaticResource {x:Type ContextMenu}}" />
 
 </ResourceDictionary>
diff --git a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Xceed.Wpf.AvalonDock.Themes.Metro.csproj b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Xceed.Wpf.AvalonDock.Themes.Metro.csproj
index 673f79b8..73797ddf 100644
--- a/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Xceed.Wpf.AvalonDock.Themes.Metro.csproj
+++ b/source/Components/Xceed.Wpf.AvalonDock.Themes.Metro/Xceed.Wpf.AvalonDock.Themes.Metro.csproj
@@ -33,42 +33,6 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <OutputPath>bin\x86\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Data" />
diff --git a/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs b/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
index 09b02231..6d3eb8a0 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
@@ -21,7 +21,7 @@ This program is provided to you under the terms of the Microsoft Public
 internal static class _XceedVersionInfo
 {
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
-  public const string BaseVersion = "3.2";
+  public const string BaseVersion = "3.3";
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
   public const string Version = BaseVersion + 
   ".0.0";
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorControl.cs
index 394717fe..ad2f7390 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorControl.cs
@@ -15,9 +15,6 @@ This program is provided to you under the terms of the Microsoft Public
   ***********************************************************************************/
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Windows;
 using System.Windows.Controls;
 using Xceed.Wpf.AvalonDock.Layout;
@@ -25,160 +22,165 @@ This program is provided to you under the terms of the Microsoft Public
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class LayoutAnchorControl : Control, ILayoutControl
+  public class LayoutAnchorControl : Control, ILayoutControl
+  {
+    static LayoutAnchorControl()
     {
-        static LayoutAnchorControl()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(LayoutAnchorControl), new FrameworkPropertyMetadata(typeof(LayoutAnchorControl)));
-            Control.IsHitTestVisibleProperty.AddOwner(typeof(LayoutAnchorControl), new FrameworkPropertyMetadata(true)); 
-        }
-
-
-        internal LayoutAnchorControl(LayoutAnchorable model)
-        {
-            _model = model;
-            _model.IsActiveChanged += new EventHandler(_model_IsActiveChanged);
-            _model.IsSelectedChanged += new EventHandler(_model_IsSelectedChanged);
-
-            SetSide(_model.FindParent<LayoutAnchorSide>().Side);
-        }
-
-        void _model_IsSelectedChanged(object sender, EventArgs e)
-        {
-            if (!_model.IsAutoHidden)
-                _model.IsSelectedChanged -= new EventHandler(_model_IsSelectedChanged);
-            else if (_model.IsSelected)
-            {
-                _model.Root.Manager.ShowAutoHideWindow(this);
-                _model.IsSelected = false;
-            }
-        }
-
-        void _model_IsActiveChanged(object sender, EventArgs e)
-        {
-            if (!_model.IsAutoHidden)
-                _model.IsActiveChanged -= new EventHandler(_model_IsActiveChanged);
-            else if (_model.IsActive)
-                _model.Root.Manager.ShowAutoHideWindow(this);
-        }
-
-        LayoutAnchorable _model;
-
-        public ILayoutElement Model
-        {
-            get { return _model; }
-        }
-
-        //protected override void OnVisualParentChanged(DependencyObject oldParent)
-        //{
-        //    base.OnVisualParentChanged(oldParent);
-
-        //    var contentModel = _model;
-
-        //    if (oldParent != null && contentModel != null && contentModel.Content is UIElement)
-        //    {
-        //        var oldParentPaneControl = oldParent.FindVisualAncestor<LayoutAnchorablePaneControl>();
-        //        if (oldParentPaneControl != null)
-        //        {
-        //            ((ILogicalChildrenContainer)oldParentPaneControl).InternalRemoveLogicalChild(contentModel.Content);
-        //        }
-        //    }
-
-        //    if (contentModel.Content != null && contentModel.Content is UIElement)
-        //    {
-        //        var oldLogicalParentPaneControl = LogicalTreeHelper.GetParent(contentModel.Content as UIElement)
-        //            as ILogicalChildrenContainer;
-        //        if (oldLogicalParentPaneControl != null)
-        //            oldLogicalParentPaneControl.InternalRemoveLogicalChild(contentModel.Content);
-        //    }
-
-        //    if (contentModel != null && contentModel.Content != null && contentModel.Root != null && contentModel.Content is UIElement)
-        //    {
-        //        ((ILogicalChildrenContainer)contentModel.Root.Manager).InternalAddLogicalChild(contentModel.Content);
-        //    }
-        //}
-
-
-        protected override void OnMouseDown(System.Windows.Input.MouseButtonEventArgs e)
-        {
-            base.OnMouseDown(e);
-
-            if (!e.Handled)
-            {
-                _model.Root.Manager.ShowAutoHideWindow(this);
-                _model.IsActive = true;
-            }
-        }
-
-
-        DispatcherTimer _openUpTimer = null;
-
-        protected override void OnMouseEnter(System.Windows.Input.MouseEventArgs e)
-        {
-            base.OnMouseEnter(e);
-
-            if (!e.Handled)
-            {
-                _openUpTimer = new DispatcherTimer(DispatcherPriority.ApplicationIdle);
-                _openUpTimer.Interval = TimeSpan.FromMilliseconds(400);
-                _openUpTimer.Tick += new EventHandler(_openUpTimer_Tick);
-                _openUpTimer.Start();
-            }
-        }
-
-        void _openUpTimer_Tick(object sender, EventArgs e)
-        {
-            _openUpTimer.Tick -= new EventHandler(_openUpTimer_Tick);
-            _openUpTimer.Stop();
-            _openUpTimer = null;
-            _model.Root.Manager.ShowAutoHideWindow(this);
-        }
-
-        protected override void OnMouseLeave(System.Windows.Input.MouseEventArgs e)
-        {
-            if (_openUpTimer != null)
-            {
-                _openUpTimer.Tick -= new EventHandler(_openUpTimer_Tick);
-                _openUpTimer.Stop();
-                _openUpTimer = null;
-            }
-            base.OnMouseLeave(e);
-        }
-
-
-        #region Side
-
-        /// <summary>
-        /// Side Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey SidePropertyKey
-            = DependencyProperty.RegisterReadOnly("Side", typeof(AnchorSide), typeof(LayoutAnchorControl),
-                new FrameworkPropertyMetadata((AnchorSide)AnchorSide.Left));
-
-        public static readonly DependencyProperty SideProperty
-            = SidePropertyKey.DependencyProperty;
-
-        /// <summary>
-        /// Gets the Side property.  This dependency property 
-        /// indicates the anchor side of the control.
-        /// </summary>
-        public AnchorSide Side
-        {
-            get { return (AnchorSide)GetValue(SideProperty); }
-        }
-
-        /// <summary>
-        /// Provides a secure method for setting the Side property.  
-        /// This dependency property indicates the anchor side of the control.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetSide(AnchorSide value)
-        {
-            SetValue(SidePropertyKey, value);
-        }
-
-        #endregion
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( LayoutAnchorControl ), new FrameworkPropertyMetadata( typeof( LayoutAnchorControl ) ) );
+      Control.IsHitTestVisibleProperty.AddOwner( typeof( LayoutAnchorControl ), new FrameworkPropertyMetadata( true ) );
+    }
+
+
+    internal LayoutAnchorControl( LayoutAnchorable model )
+    {
+      _model = model;
+      _model.IsActiveChanged += new EventHandler( _model_IsActiveChanged );
+      _model.IsSelectedChanged += new EventHandler( _model_IsSelectedChanged );
+
+      SetSide( _model.FindParent<LayoutAnchorSide>().Side );
+    }
+
+    void _model_IsSelectedChanged( object sender, EventArgs e )
+    {
+      if( !_model.IsAutoHidden )
+        _model.IsSelectedChanged -= new EventHandler( _model_IsSelectedChanged );
+      else if( _model.IsSelected )
+      {
+        _model.Root.Manager.ShowAutoHideWindow( this );
+        _model.IsSelected = false;
+      }
+    }
+
+    void _model_IsActiveChanged( object sender, EventArgs e )
+    {
+      if( !_model.IsAutoHidden )
+        _model.IsActiveChanged -= new EventHandler( _model_IsActiveChanged );
+      else if( _model.IsActive )
+        _model.Root.Manager.ShowAutoHideWindow( this );
+    }
+
+    LayoutAnchorable _model;
+
+    public ILayoutElement Model
+    {
+      get
+      {
+        return _model;
+      }
+    }
+
+    //protected override void OnVisualParentChanged(DependencyObject oldParent)
+    //{
+    //    base.OnVisualParentChanged(oldParent);
+
+    //    var contentModel = _model;
+
+    //    if (oldParent != null && contentModel != null && contentModel.Content is UIElement)
+    //    {
+    //        var oldParentPaneControl = oldParent.FindVisualAncestor<LayoutAnchorablePaneControl>();
+    //        if (oldParentPaneControl != null)
+    //        {
+    //            ((ILogicalChildrenContainer)oldParentPaneControl).InternalRemoveLogicalChild(contentModel.Content);
+    //        }
+    //    }
+
+    //    if (contentModel.Content != null && contentModel.Content is UIElement)
+    //    {
+    //        var oldLogicalParentPaneControl = LogicalTreeHelper.GetParent(contentModel.Content as UIElement)
+    //            as ILogicalChildrenContainer;
+    //        if (oldLogicalParentPaneControl != null)
+    //            oldLogicalParentPaneControl.InternalRemoveLogicalChild(contentModel.Content);
+    //    }
+
+    //    if (contentModel != null && contentModel.Content != null && contentModel.Root != null && contentModel.Content is UIElement)
+    //    {
+    //        ((ILogicalChildrenContainer)contentModel.Root.Manager).InternalAddLogicalChild(contentModel.Content);
+    //    }
+    //}
+
+
+    protected override void OnMouseDown( System.Windows.Input.MouseButtonEventArgs e )
+    {
+      base.OnMouseDown( e );
+
+      if( !e.Handled )
+      {
+        _model.Root.Manager.ShowAutoHideWindow( this );
+        _model.IsActive = true;
+      }
+    }
 
 
+    DispatcherTimer _openUpTimer = null;
+
+    protected override void OnMouseEnter( System.Windows.Input.MouseEventArgs e )
+    {
+      base.OnMouseEnter( e );
+
+      if( !e.Handled )
+      {
+        _openUpTimer = new DispatcherTimer( DispatcherPriority.ApplicationIdle );
+        _openUpTimer.Interval = TimeSpan.FromMilliseconds( 400 );
+        _openUpTimer.Tick += new EventHandler( _openUpTimer_Tick );
+        _openUpTimer.Start();
+      }
+    }
+
+    void _openUpTimer_Tick( object sender, EventArgs e )
+    {
+      _openUpTimer.Tick -= new EventHandler( _openUpTimer_Tick );
+      _openUpTimer.Stop();
+      _openUpTimer = null;
+      _model.Root.Manager.ShowAutoHideWindow( this );
+    }
+
+    protected override void OnMouseLeave( System.Windows.Input.MouseEventArgs e )
+    {
+      if( _openUpTimer != null )
+      {
+        _openUpTimer.Tick -= new EventHandler( _openUpTimer_Tick );
+        _openUpTimer.Stop();
+        _openUpTimer = null;
+      }
+      base.OnMouseLeave( e );
+    }
+
+
+    #region Side
+
+    /// <summary>
+    /// Side Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey SidePropertyKey
+        = DependencyProperty.RegisterReadOnly( "Side", typeof( AnchorSide ), typeof( LayoutAnchorControl ),
+            new FrameworkPropertyMetadata( ( AnchorSide )AnchorSide.Left ) );
+
+    public static readonly DependencyProperty SideProperty
+        = SidePropertyKey.DependencyProperty;
+
+    /// <summary>
+    /// Gets the Side property.  This dependency property 
+    /// indicates the anchor side of the control.
+    /// </summary>
+    public AnchorSide Side
+    {
+      get
+      {
+        return ( AnchorSide )GetValue( SideProperty );
+      }
     }
+
+    /// <summary>
+    /// Provides a secure method for setting the Side property.  
+    /// This dependency property indicates the anchor side of the control.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetSide( AnchorSide value )
+    {
+      SetValue( SidePropertyKey, value );
+    }
+
+    #endregion
+
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorSideControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorSideControl.cs
index 6357d084..238fa6c5 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorSideControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorSideControl.cs
@@ -15,9 +15,7 @@ This program is provided to you under the terms of the Microsoft Public
   ***********************************************************************************/
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows.Controls;
 using System.Windows;
 using System.Collections.ObjectModel;
@@ -25,228 +23,245 @@ This program is provided to you under the terms of the Microsoft Public
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class LayoutAnchorSideControl : Control, ILayoutControl
+  public class LayoutAnchorSideControl : Control, ILayoutControl
+  {
+    static LayoutAnchorSideControl()
     {
-        static LayoutAnchorSideControl()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(LayoutAnchorSideControl), new FrameworkPropertyMetadata(typeof(LayoutAnchorSideControl)));
-        }
-
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( LayoutAnchorSideControl ), new FrameworkPropertyMetadata( typeof( LayoutAnchorSideControl ) ) );
+    }
 
-        internal LayoutAnchorSideControl(LayoutAnchorSide model)
-        {
-            if (model == null)
-                throw new ArgumentNullException("model");
 
+    internal LayoutAnchorSideControl( LayoutAnchorSide model )
+    {
+      if( model == null )
+        throw new ArgumentNullException( "model" );
 
-            _model = model;
 
-            CreateChildrenViews();
+      _model = model;
 
-            _model.Children.CollectionChanged += (s, e) => OnModelChildrenCollectionChanged(e);
+      CreateChildrenViews();
 
-            UpdateSide();
-        }
+      _model.Children.CollectionChanged += ( s, e ) => OnModelChildrenCollectionChanged( e );
 
-        private void CreateChildrenViews()
-        {
-            var manager = _model.Root.Manager;
-            foreach (var childModel in _model.Children)
-            {
-                _childViews.Add(manager.CreateUIElementForModel(childModel) as LayoutAnchorGroupControl);
-            }
-        }
+      UpdateSide();
+    }
 
-        private void OnModelChildrenCollectionChanged(System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
-        {
-            if (e.OldItems != null && 
-                (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove || 
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                foreach (var childModel in e.OldItems)
-                    _childViews.Remove(_childViews.First(cv => cv.Model == childModel));
-            }
-
-            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Reset)
-                _childViews.Clear();
-
-            if (e.NewItems != null &&
-                (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                var manager = _model.Root.Manager;
-                int insertIndex = e.NewStartingIndex;
-                foreach (LayoutAnchorGroup childModel in e.NewItems)
-                {
-                    _childViews.Insert(insertIndex++, manager.CreateUIElementForModel(childModel) as LayoutAnchorGroupControl);
-                }
-            }
-        }
+    private void CreateChildrenViews()
+    {
+      var manager = _model.Root.Manager;
+      foreach( var childModel in _model.Children )
+      {
+        _childViews.Add( manager.CreateUIElementForModel( childModel ) as LayoutAnchorGroupControl );
+      }
+    }
 
-        LayoutAnchorSide _model = null;
-        public ILayoutElement Model
+    private void OnModelChildrenCollectionChanged( System.Collections.Specialized.NotifyCollectionChangedEventArgs e )
+    {
+      if( e.OldItems != null &&
+          ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        foreach( var childModel in e.OldItems )
+          _childViews.Remove( _childViews.First( cv => cv.Model == childModel ) );
+      }
+
+      if( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Reset )
+        _childViews.Clear();
+
+      if( e.NewItems != null &&
+          ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        var manager = _model.Root.Manager;
+        int insertIndex = e.NewStartingIndex;
+        foreach( LayoutAnchorGroup childModel in e.NewItems )
         {
-            get { return _model; }
+          _childViews.Insert( insertIndex++, manager.CreateUIElementForModel( childModel ) as LayoutAnchorGroupControl );
         }
+      }
+    }
 
-        ObservableCollection<LayoutAnchorGroupControl> _childViews = new ObservableCollection<LayoutAnchorGroupControl>();
+    LayoutAnchorSide _model = null;
+    public ILayoutElement Model
+    {
+      get
+      {
+        return _model;
+      }
+    }
 
-        public ObservableCollection<LayoutAnchorGroupControl> Children
-        {
-            get { return _childViews; }
-        }
+    ObservableCollection<LayoutAnchorGroupControl> _childViews = new ObservableCollection<LayoutAnchorGroupControl>();
 
-        void UpdateSide()
-        {
-            switch (_model.Side)
-            {
-                case AnchorSide.Left:
-                    SetIsLeftSide(true);
-                    break;
-                case AnchorSide.Top:
-                    SetIsTopSide(true);
-                    break;
-                case AnchorSide.Right:
-                    SetIsRightSide(true);
-                    break;
-                case AnchorSide.Bottom:
-                    SetIsBottomSide(true);
-                    break;
-            }
-        }
+    public ObservableCollection<LayoutAnchorGroupControl> Children
+    {
+      get
+      {
+        return _childViews;
+      }
+    }
 
-        #region IsLeftSide
+    void UpdateSide()
+    {
+      switch( _model.Side )
+      {
+        case AnchorSide.Left:
+          SetIsLeftSide( true );
+          break;
+        case AnchorSide.Top:
+          SetIsTopSide( true );
+          break;
+        case AnchorSide.Right:
+          SetIsRightSide( true );
+          break;
+        case AnchorSide.Bottom:
+          SetIsBottomSide( true );
+          break;
+      }
+    }
 
-        /// <summary>
-        /// IsLeftSide Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey IsLeftSidePropertyKey
-            = DependencyProperty.RegisterReadOnly("IsLeftSide", typeof(bool), typeof(LayoutAnchorSideControl),
-                new FrameworkPropertyMetadata((bool)false));
+    #region IsLeftSide
 
-        public static readonly DependencyProperty IsLeftSideProperty
-            = IsLeftSidePropertyKey.DependencyProperty;
+    /// <summary>
+    /// IsLeftSide Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey IsLeftSidePropertyKey
+        = DependencyProperty.RegisterReadOnly( "IsLeftSide", typeof( bool ), typeof( LayoutAnchorSideControl ),
+            new FrameworkPropertyMetadata( ( bool )false ) );
 
-        /// <summary>
-        /// Gets the IsLeftSide property.  This dependency property 
-        /// indicates this control is anchored to left side.
-        /// </summary>
-        public bool IsLeftSide
-        {
-            get { return (bool)GetValue(IsLeftSideProperty); }
-        }
+    public static readonly DependencyProperty IsLeftSideProperty
+        = IsLeftSidePropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Provides a secure method for setting the IsLeftSide property.  
-        /// This dependency property indicates this control is anchored to left side.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetIsLeftSide(bool value)
-        {
-            SetValue(IsLeftSidePropertyKey, value);
-        }
+    /// <summary>
+    /// Gets the IsLeftSide property.  This dependency property 
+    /// indicates this control is anchored to left side.
+    /// </summary>
+    public bool IsLeftSide
+    {
+      get
+      {
+        return ( bool )GetValue( IsLeftSideProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the IsLeftSide property.  
+    /// This dependency property indicates this control is anchored to left side.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetIsLeftSide( bool value )
+    {
+      SetValue( IsLeftSidePropertyKey, value );
+    }
 
-        #region IsTopSide
+    #endregion
 
-        /// <summary>
-        /// IsTopSide Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey IsTopSidePropertyKey
-            = DependencyProperty.RegisterReadOnly("IsTopSide", typeof(bool), typeof(LayoutAnchorSideControl),
-                new FrameworkPropertyMetadata((bool)false));
+    #region IsTopSide
 
-        public static readonly DependencyProperty IsTopSideProperty
-            = IsTopSidePropertyKey.DependencyProperty;
+    /// <summary>
+    /// IsTopSide Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey IsTopSidePropertyKey
+        = DependencyProperty.RegisterReadOnly( "IsTopSide", typeof( bool ), typeof( LayoutAnchorSideControl ),
+            new FrameworkPropertyMetadata( ( bool )false ) );
 
-        /// <summary>
-        /// Gets the IsTopSide property.  This dependency property 
-        /// indicates this control is anchored to top side.
-        /// </summary>
-        public bool IsTopSide
-        {
-            get { return (bool)GetValue(IsTopSideProperty); }
-        }
+    public static readonly DependencyProperty IsTopSideProperty
+        = IsTopSidePropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Provides a secure method for setting the IsTopSide property.  
-        /// This dependency property indicates this control is anchored to top side.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetIsTopSide(bool value)
-        {
-            SetValue(IsTopSidePropertyKey, value);
-        }
+    /// <summary>
+    /// Gets the IsTopSide property.  This dependency property 
+    /// indicates this control is anchored to top side.
+    /// </summary>
+    public bool IsTopSide
+    {
+      get
+      {
+        return ( bool )GetValue( IsTopSideProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the IsTopSide property.  
+    /// This dependency property indicates this control is anchored to top side.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetIsTopSide( bool value )
+    {
+      SetValue( IsTopSidePropertyKey, value );
+    }
 
-        #region IsRightSide
+    #endregion
 
-        /// <summary>
-        /// IsRightSide Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey IsRightSidePropertyKey
-            = DependencyProperty.RegisterReadOnly("IsRightSide", typeof(bool), typeof(LayoutAnchorSideControl),
-                new FrameworkPropertyMetadata((bool)false));
+    #region IsRightSide
 
-        public static readonly DependencyProperty IsRightSideProperty
-            = IsRightSidePropertyKey.DependencyProperty;
+    /// <summary>
+    /// IsRightSide Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey IsRightSidePropertyKey
+        = DependencyProperty.RegisterReadOnly( "IsRightSide", typeof( bool ), typeof( LayoutAnchorSideControl ),
+            new FrameworkPropertyMetadata( ( bool )false ) );
 
-        /// <summary>
-        /// Gets the IsRightSide property.  This dependency property 
-        /// indicates this control is anchored to right side.
-        /// </summary>
-        public bool IsRightSide
-        {
-            get { return (bool)GetValue(IsRightSideProperty); }
-        }
+    public static readonly DependencyProperty IsRightSideProperty
+        = IsRightSidePropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Provides a secure method for setting the IsRightSide property.  
-        /// This dependency property indicates this control is anchored to right side.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetIsRightSide(bool value)
-        {
-            SetValue(IsRightSidePropertyKey, value);
-        }
+    /// <summary>
+    /// Gets the IsRightSide property.  This dependency property 
+    /// indicates this control is anchored to right side.
+    /// </summary>
+    public bool IsRightSide
+    {
+      get
+      {
+        return ( bool )GetValue( IsRightSideProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the IsRightSide property.  
+    /// This dependency property indicates this control is anchored to right side.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetIsRightSide( bool value )
+    {
+      SetValue( IsRightSidePropertyKey, value );
+    }
 
-        #region IsBottomSide
+    #endregion
 
-        /// <summary>
-        /// IsBottomSide Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey IsBottomSidePropertyKey
-            = DependencyProperty.RegisterReadOnly("IsBottomSide", typeof(bool), typeof(LayoutAnchorSideControl),
-                new FrameworkPropertyMetadata((bool)false));
+    #region IsBottomSide
 
-        public static readonly DependencyProperty IsBottomSideProperty
-            = IsBottomSidePropertyKey.DependencyProperty;
+    /// <summary>
+    /// IsBottomSide Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey IsBottomSidePropertyKey
+        = DependencyProperty.RegisterReadOnly( "IsBottomSide", typeof( bool ), typeof( LayoutAnchorSideControl ),
+            new FrameworkPropertyMetadata( ( bool )false ) );
 
-        /// <summary>
-        /// Gets the IsBottomSide property.  This dependency property 
-        /// indicates if this panel is anchored to bottom side.
-        /// </summary>
-        public bool IsBottomSide
-        {
-            get { return (bool)GetValue(IsBottomSideProperty); }
-        }
+    public static readonly DependencyProperty IsBottomSideProperty
+        = IsBottomSidePropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Provides a secure method for setting the IsBottomSide property.  
-        /// This dependency property indicates if this panel is anchored to bottom side.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetIsBottomSide(bool value)
-        {
-            SetValue(IsBottomSidePropertyKey, value);
-        }
+    /// <summary>
+    /// Gets the IsBottomSide property.  This dependency property 
+    /// indicates if this panel is anchored to bottom side.
+    /// </summary>
+    public bool IsBottomSide
+    {
+      get
+      {
+        return ( bool )GetValue( IsBottomSideProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the IsBottomSide property.  
+    /// This dependency property indicates if this panel is anchored to bottom side.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetIsBottomSide( bool value )
+    {
+      SetValue( IsBottomSidePropertyKey, value );
+    }
 
+    #endregion
 
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableControl.cs
index 17735aa3..8ce216b8 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableControl.cs
@@ -14,147 +14,144 @@ This program is provided to you under the terms of the Microsoft Public
 
   ***********************************************************************************/
 
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Windows;
 using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
-using System.Windows.Navigation;
-using System.Windows.Shapes;
 using Xceed.Wpf.AvalonDock.Layout;
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class LayoutAnchorableControl : Control
+  public class LayoutAnchorableControl : Control
+  {
+    static LayoutAnchorableControl()
     {
-        static LayoutAnchorableControl()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(LayoutAnchorableControl), new FrameworkPropertyMetadata(typeof(LayoutAnchorableControl)));
-            FocusableProperty.OverrideMetadata(typeof(LayoutAnchorableControl), new FrameworkPropertyMetadata(false));
-        }
-
-        public LayoutAnchorableControl()
-        {
-            //SetBinding(FlowDirectionProperty, new Binding("Model.Root.Manager.FlowDirection") { Source = this });
-        }
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( LayoutAnchorableControl ), new FrameworkPropertyMetadata( typeof( LayoutAnchorableControl ) ) );
+      FocusableProperty.OverrideMetadata( typeof( LayoutAnchorableControl ), new FrameworkPropertyMetadata( false ) );
+    }
 
+    public LayoutAnchorableControl()
+    {
+      //SetBinding(FlowDirectionProperty, new Binding("Model.Root.Manager.FlowDirection") { Source = this });
+    }
 
-        #region Model
 
-        /// <summary>
-        /// Model Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ModelProperty =
-            DependencyProperty.Register("Model", typeof(LayoutAnchorable), typeof(LayoutAnchorableControl),
-                new FrameworkPropertyMetadata((LayoutAnchorable)null,
-                    new PropertyChangedCallback(OnModelChanged)));
+    #region Model
 
-        /// <summary>
-        /// Gets or sets the Model property.  This dependency property 
-        /// indicates the model attached to this view.
-        /// </summary>
-        public LayoutAnchorable Model
-        {
-            get { return (LayoutAnchorable)GetValue(ModelProperty); }
-            set { SetValue(ModelProperty, value); }
-        }
+    /// <summary>
+    /// Model Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ModelProperty =
+        DependencyProperty.Register( "Model", typeof( LayoutAnchorable ), typeof( LayoutAnchorableControl ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorable )null,
+                new PropertyChangedCallback( OnModelChanged ) ) );
 
-        /// <summary>
-        /// Handles changes to the Model property.
-        /// </summary>
-        private static void OnModelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutAnchorableControl)d).OnModelChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the Model property.  This dependency property 
+    /// indicates the model attached to this view.
+    /// </summary>
+    public LayoutAnchorable Model
+    {
+      get
+      {
+        return ( LayoutAnchorable )GetValue( ModelProperty );
+      }
+      set
+      {
+        SetValue( ModelProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the Model property.
-        /// </summary>
-        protected virtual void OnModelChanged(DependencyPropertyChangedEventArgs e)
-        {
-          if( e.OldValue != null )
-          {
-            ((LayoutContent)e.OldValue).PropertyChanged -= Model_PropertyChanged;
-          }
+    /// <summary>
+    /// Handles changes to the Model property.
+    /// </summary>
+    private static void OnModelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutAnchorableControl )d ).OnModelChanged( e );
+    }
 
-          if( Model != null )
-          {
-            Model.PropertyChanged += Model_PropertyChanged;
-            SetLayoutItem( Model.Root.Manager.GetLayoutItemFromModel( Model ) );
-          }
-          else
-            SetLayoutItem( null );
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the Model property.
+    /// </summary>
+    protected virtual void OnModelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+      {
+        ( ( LayoutContent )e.OldValue ).PropertyChanged -= Model_PropertyChanged;
+      }
+
+      if( Model != null )
+      {
+        Model.PropertyChanged += Model_PropertyChanged;
+        SetLayoutItem( Model.Root.Manager.GetLayoutItemFromModel( Model ) );
+      }
+      else
+        SetLayoutItem( null );
+    }
 
-        private void Model_PropertyChanged( object sender, System.ComponentModel.PropertyChangedEventArgs e )
+    private void Model_PropertyChanged( object sender, System.ComponentModel.PropertyChangedEventArgs e )
+    {
+      if( e.PropertyName == "IsEnabled" )
+      {
+        if( Model != null )
         {
-          if( e.PropertyName == "IsEnabled" )
+          IsEnabled = Model.IsEnabled;
+          if( !IsEnabled && Model.IsActive )
           {
-            if( Model != null )
+            if( ( Model.Parent != null ) && ( Model.Parent is LayoutAnchorablePane ) )
             {
-              IsEnabled = Model.IsEnabled;
-              if( !IsEnabled && Model.IsActive )
-              {
-                if( (Model.Parent != null) && (Model.Parent is LayoutAnchorablePane) )
-                {
-                  ((LayoutAnchorablePane)Model.Parent).SetNextSelectedIndex();
-                }
-              }
+              ( ( LayoutAnchorablePane )Model.Parent ).SetNextSelectedIndex();
             }
           }
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region LayoutItem
+    #region LayoutItem
 
-        /// <summary>
-        /// LayoutItem Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey LayoutItemPropertyKey
-            = DependencyProperty.RegisterReadOnly("LayoutItem", typeof(LayoutItem), typeof(LayoutAnchorableControl),
-                new FrameworkPropertyMetadata((LayoutItem)null));
+    /// <summary>
+    /// LayoutItem Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey LayoutItemPropertyKey
+        = DependencyProperty.RegisterReadOnly( "LayoutItem", typeof( LayoutItem ), typeof( LayoutAnchorableControl ),
+            new FrameworkPropertyMetadata( ( LayoutItem )null ) );
 
-        public static readonly DependencyProperty LayoutItemProperty
-            = LayoutItemPropertyKey.DependencyProperty;
+    public static readonly DependencyProperty LayoutItemProperty
+        = LayoutItemPropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Gets the LayoutItem property.  This dependency property 
-        /// indicates the LayoutItem attached to this tag item.
-        /// </summary>
-        public LayoutItem LayoutItem
-        {
-            get { return (LayoutItem)GetValue(LayoutItemProperty); }
-        }
-
-        /// <summary>
-        /// Provides a secure method for setting the LayoutItem property.  
-        /// This dependency property indicates the LayoutItem attached to this tag item.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetLayoutItem(LayoutItem value)
-        {
-            SetValue(LayoutItemPropertyKey, value);
-        }
+    /// <summary>
+    /// Gets the LayoutItem property.  This dependency property 
+    /// indicates the LayoutItem attached to this tag item.
+    /// </summary>
+    public LayoutItem LayoutItem
+    {
+      get
+      {
+        return ( LayoutItem )GetValue( LayoutItemProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the LayoutItem property.  
+    /// This dependency property indicates the LayoutItem attached to this tag item.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetLayoutItem( LayoutItem value )
+    {
+      SetValue( LayoutItemPropertyKey, value );
+    }
 
+    #endregion
 
-        protected override void OnGotKeyboardFocus(System.Windows.Input.KeyboardFocusChangedEventArgs e)
-        {
-            if (Model != null)
-                Model.IsActive = true;
 
-            base.OnGotKeyboardFocus(e);
-        }
+    protected override void OnGotKeyboardFocus( System.Windows.Input.KeyboardFocusChangedEventArgs e )
+    {
+      if( Model != null )
+        Model.IsActive = true;
 
+      base.OnGotKeyboardFocus( e );
+    }
 
 
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
index a1fafcc6..7b470c86 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
@@ -47,6 +47,7 @@ internal LayoutAnchorableFloatingWindowControl( LayoutAnchorableFloatingWindow m
     {
       _model = model;
       HideWindowCommand = new RelayCommand( ( p ) => OnExecuteHideWindowCommand( p ), ( p ) => CanExecuteHideWindowCommand( p ) );
+      CloseWindowCommand = new RelayCommand( ( p ) => OnExecuteCloseWindowCommand( p ), ( p ) => CanExecuteCloseWindowCommand( p ) );
       UpdateThemeResources();
     }
 
@@ -362,5 +363,60 @@ private void OnExecuteHideWindowCommand( object parameter )
       }
     }
     #endregion
+
+    #region CloseWindowCommand
+    public ICommand CloseWindowCommand
+    {
+      get;
+      private set;
+    }
+
+    private bool CanExecuteCloseWindowCommand( object parameter )
+    {
+      if( Model == null )
+        return false;
+
+      var root = Model.Root;
+      if( root == null )
+        return false;
+
+      var manager = root.Manager;
+      if( manager == null )
+        return false;
+
+      bool canExecute = false;
+      foreach( var anchorable in this.Model.Descendents().OfType<LayoutAnchorable>().ToArray() )
+      {
+        if( !anchorable.CanClose )
+        {
+          canExecute = false;
+          break;
+        }
+
+        var anchorableLayoutItem = manager.GetLayoutItemFromModel( anchorable ) as LayoutAnchorableItem;
+        if( anchorableLayoutItem == null ||
+            anchorableLayoutItem.CloseCommand == null ||
+            !anchorableLayoutItem.CloseCommand.CanExecute( parameter ) )
+        {
+          canExecute = false;
+          break;
+        }
+
+        canExecute = true;
+      }
+
+      return canExecute;
+    }
+
+    private void OnExecuteCloseWindowCommand( object parameter )
+    {
+      var manager = Model.Root.Manager;
+      foreach( var anchorable in this.Model.Descendents().OfType<LayoutAnchorable>().ToArray() )
+      {
+        var anchorableLayoutItem = manager.GetLayoutItemFromModel( anchorable ) as LayoutAnchorableItem;
+        anchorableLayoutItem.CloseCommand.Execute( parameter );
+      }
+    }
+    #endregion
   }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorablePaneControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorablePaneControl.cs
index 7d7ac237..e41b1465 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorablePaneControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorablePaneControl.cs
@@ -15,10 +15,6 @@ This program is provided to you under the terms of the Microsoft Public
   ***********************************************************************************/
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Collections.ObjectModel;
 using System.Windows.Controls;
 using System.Windows;
 using System.Windows.Data;
@@ -94,5 +90,4 @@ protected override void OnMouseRightButtonDown( System.Windows.Input.MouseButton
     }
 
   }
-
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAutoHideWindowControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAutoHideWindowControl.cs
index c059d558..673a1b2d 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAutoHideWindowControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutAutoHideWindowControl.cs
@@ -15,9 +15,7 @@ This program is provided to you under the terms of the Microsoft Public
   ***********************************************************************************/
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows.Interop;
 using System.Windows.Controls;
 using System.Runtime.InteropServices;
@@ -26,526 +24,542 @@ This program is provided to you under the terms of the Microsoft Public
 using System.Windows.Data;
 using System.Windows.Media;
 using Xceed.Wpf.AvalonDock.Layout;
-using System.Diagnostics;
-using System.Windows.Threading;
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class LayoutAutoHideWindowControl : HwndHost, ILayoutControl
+  public class LayoutAutoHideWindowControl : HwndHost, ILayoutControl
+  {
+    static LayoutAutoHideWindowControl()
     {
-        static LayoutAutoHideWindowControl()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(LayoutAutoHideWindowControl), new FrameworkPropertyMetadata(typeof(LayoutAutoHideWindowControl)));
-            UIElement.FocusableProperty.OverrideMetadata(typeof(LayoutAutoHideWindowControl), new FrameworkPropertyMetadata(true));
-            Control.IsTabStopProperty.OverrideMetadata(typeof(LayoutAutoHideWindowControl), new FrameworkPropertyMetadata(true));
-            VisibilityProperty.OverrideMetadata(typeof(LayoutAutoHideWindowControl), new FrameworkPropertyMetadata(Visibility.Hidden));
-        }
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( LayoutAutoHideWindowControl ), new FrameworkPropertyMetadata( typeof( LayoutAutoHideWindowControl ) ) );
+      UIElement.FocusableProperty.OverrideMetadata( typeof( LayoutAutoHideWindowControl ), new FrameworkPropertyMetadata( true ) );
+      Control.IsTabStopProperty.OverrideMetadata( typeof( LayoutAutoHideWindowControl ), new FrameworkPropertyMetadata( true ) );
+      VisibilityProperty.OverrideMetadata( typeof( LayoutAutoHideWindowControl ), new FrameworkPropertyMetadata( Visibility.Hidden ) );
+    }
 
-        internal LayoutAutoHideWindowControl()
-        {
-        }
+    internal LayoutAutoHideWindowControl()
+    {
+    }
 
-        internal void Show(LayoutAnchorControl anchor)
-        {
-            if (_model != null)
-                throw new InvalidOperationException();
+    internal void Show( LayoutAnchorControl anchor )
+    {
+      if( _model != null )
+        throw new InvalidOperationException();
 
-            _anchor = anchor;
-            _model = anchor.Model as LayoutAnchorable;
-            _side = (anchor.Model.Parent.Parent as LayoutAnchorSide).Side;
-            _manager = _model.Root.Manager;
-            CreateInternalGrid();
+      _anchor = anchor;
+      _model = anchor.Model as LayoutAnchorable;
+      _side = ( anchor.Model.Parent.Parent as LayoutAnchorSide ).Side;
+      _manager = _model.Root.Manager;
+      CreateInternalGrid();
 
-            _model.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler(_model_PropertyChanged);
+      _model.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler( _model_PropertyChanged );
 
-            Visibility = System.Windows.Visibility.Visible;
-            InvalidateMeasure();
-            UpdateWindowPos();
-        }
+      Visibility = System.Windows.Visibility.Visible;
+      InvalidateMeasure();
+      UpdateWindowPos();
+    }
 
-        internal void Hide()
-        {
-            if (_model == null)
-                return;
+    internal void Hide()
+    {
+      if( _model == null )
+        return;
 
-            _model.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler(_model_PropertyChanged);
+      _model.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler( _model_PropertyChanged );
 
-            RemoveInternalGrid();
-            _anchor = null;
-            _model = null;
-            _manager = null;
-            Visibility = System.Windows.Visibility.Hidden;
-        }
+      RemoveInternalGrid();
+      _anchor = null;
+      _model = null;
+      _manager = null;
+      Visibility = System.Windows.Visibility.Hidden;
+    }
 
-        LayoutAnchorControl _anchor;
+    LayoutAnchorControl _anchor;
 
-        LayoutAnchorable _model;
+    LayoutAnchorable _model;
 
-        public ILayoutElement Model
-        {
-            get { return _model; }
-        }
+    public ILayoutElement Model
+    {
+      get
+      {
+        return _model;
+      }
+    }
 
-        HwndSource _internalHwndSource = null;
-        IntPtr parentWindowHandle;
-        protected override System.Runtime.InteropServices.HandleRef BuildWindowCore(System.Runtime.InteropServices.HandleRef hwndParent)
-        {
-            parentWindowHandle = hwndParent.Handle;
-            _internalHwndSource = new HwndSource(new HwndSourceParameters()
-            {
-                ParentWindow = hwndParent.Handle,
-                WindowStyle = Win32Helper.WS_CHILD | Win32Helper.WS_VISIBLE | Win32Helper.WS_CLIPSIBLINGS | Win32Helper.WS_CLIPCHILDREN,
-                Width = 0,
-                Height = 0,
-            });
-
-            _internalHost_ContentRendered = false;
-            _internalHwndSource.ContentRendered += _internalHwndSource_ContentRendered;
-            _internalHwndSource.RootVisual = _internalHostPresenter;
-            AddLogicalChild(_internalHostPresenter);
-            Win32Helper.BringWindowToTop(_internalHwndSource.Handle);
-            return new HandleRef(this, _internalHwndSource.Handle);
-        }
+    HwndSource _internalHwndSource = null;
+    IntPtr parentWindowHandle;
+    protected override System.Runtime.InteropServices.HandleRef BuildWindowCore( System.Runtime.InteropServices.HandleRef hwndParent )
+    {
+      parentWindowHandle = hwndParent.Handle;
+      _internalHwndSource = new HwndSource( new HwndSourceParameters()
+      {
+        ParentWindow = hwndParent.Handle,
+        WindowStyle = Win32Helper.WS_CHILD | Win32Helper.WS_VISIBLE | Win32Helper.WS_CLIPSIBLINGS | Win32Helper.WS_CLIPCHILDREN,
+        Width = 0,
+        Height = 0,
+      } );
+
+      _internalHost_ContentRendered = false;
+      _internalHwndSource.ContentRendered += _internalHwndSource_ContentRendered;
+      _internalHwndSource.RootVisual = _internalHostPresenter;
+      AddLogicalChild( _internalHostPresenter );
+      Win32Helper.BringWindowToTop( _internalHwndSource.Handle );
+      return new HandleRef( this, _internalHwndSource.Handle );
+    }
 
-        private bool _internalHost_ContentRendered = false;
+    private bool _internalHost_ContentRendered = false;
 
-        void _internalHwndSource_ContentRendered(object sender, EventArgs e)
-        {
-            _internalHost_ContentRendered = true;
-        }
+    void _internalHwndSource_ContentRendered( object sender, EventArgs e )
+    {
+      _internalHost_ContentRendered = true;
+    }
 
-        protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
-        {
-            if (msg == Win32Helper.WM_WINDOWPOSCHANGING)
-            {
-                if (_internalHost_ContentRendered)
-                    Win32Helper.SetWindowPos(_internalHwndSource.Handle, Win32Helper.HWND_TOP, 0, 0, 0, 0, Win32Helper.SetWindowPosFlags.IgnoreMove | Win32Helper.SetWindowPosFlags.IgnoreResize);
-            }
-            return base.WndProc(hwnd, msg, wParam, lParam, ref handled);
-        }
 
-        protected override void DestroyWindowCore(System.Runtime.InteropServices.HandleRef hwnd)
-        {
-            if (_internalHwndSource != null)
-            {
-                _internalHwndSource.ContentRendered -= _internalHwndSource_ContentRendered;
-                _internalHwndSource.Dispose();
-                _internalHwndSource = null;
-            }
-        }
+    protected override IntPtr WndProc( IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled )
+    {
+      if( msg == Win32Helper.WM_WINDOWPOSCHANGING )
+      {
+        if( _internalHost_ContentRendered )
+          Win32Helper.SetWindowPos( _internalHwndSource.Handle, Win32Helper.HWND_TOP, 0, 0, 0, 0, Win32Helper.SetWindowPosFlags.IgnoreMove | Win32Helper.SetWindowPosFlags.IgnoreResize );
+      }
+      return base.WndProc( hwnd, msg, wParam, lParam, ref handled );
+    }
 
-        public override void OnApplyTemplate()
-        {
-            base.OnApplyTemplate();
+    protected override void DestroyWindowCore( System.Runtime.InteropServices.HandleRef hwnd )
+    {
+      if( _internalHwndSource != null )
+      {
+        _internalHwndSource.ContentRendered -= _internalHwndSource_ContentRendered;
+        _internalHwndSource.Dispose();
+        _internalHwndSource = null;
+      }
+    }
 
+    public override void OnApplyTemplate()
+    {
+      base.OnApplyTemplate();
 
-        }
 
-        ContentPresenter _internalHostPresenter = new ContentPresenter();
-        Grid _internalGrid = null;
-        LayoutAnchorableControl _internalHost = null;
-        AnchorSide _side;
-        LayoutGridResizerControl _resizer = null;
-        DockingManager _manager;
+    }
+
+    ContentPresenter _internalHostPresenter = new ContentPresenter();
+    Grid _internalGrid = null;
+    internal LayoutAnchorableControl _internalHost = null;
+    AnchorSide _side;
+    LayoutGridResizerControl _resizer = null;
+    DockingManager _manager;
 
-        void _model_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
+    void _model_PropertyChanged( object sender, System.ComponentModel.PropertyChangedEventArgs e )
+    {
+      if( e.PropertyName == "IsAutoHidden" )
+      {
+        if( !_model.IsAutoHidden )
         {
-            if (e.PropertyName == "IsAutoHidden")
-            {
-                if (!_model.IsAutoHidden)
-                {
-                    _manager.HideAutoHideWindow(_anchor);
-                }
-            }
+          _manager.HideAutoHideWindow( _anchor );
         }
+      }
+    }
 
-        void CreateInternalGrid()
-        {
-            _internalGrid = new Grid() { FlowDirection = System.Windows.FlowDirection.LeftToRight};
-            _internalGrid.SetBinding(Grid.BackgroundProperty, new Binding("Background") { Source = this });
+    void CreateInternalGrid()
+    {
+      _internalGrid = new Grid() { FlowDirection = System.Windows.FlowDirection.LeftToRight };
+      _internalGrid.SetBinding( Grid.BackgroundProperty, new Binding( "Background" ) { Source = this } );
 
 
-            _internalHost = new LayoutAnchorableControl() { Model = _model, Style = AnchorableStyle };
-            _internalHost.SetBinding(FlowDirectionProperty, new Binding("Model.Root.Manager.FlowDirection") { Source = this });
+      _internalHost = new LayoutAnchorableControl() { Model = _model, Style = AnchorableStyle };
+      _internalHost.SetBinding( FlowDirectionProperty, new Binding( "Model.Root.Manager.FlowDirection" ) { Source = this } );
 
-            KeyboardNavigation.SetTabNavigation(_internalGrid, KeyboardNavigationMode.Cycle);
+      KeyboardNavigation.SetTabNavigation( _internalGrid, KeyboardNavigationMode.Cycle );
 
-            _resizer = new LayoutGridResizerControl();
+      _resizer = new LayoutGridResizerControl();
 
-            _resizer.DragStarted += new System.Windows.Controls.Primitives.DragStartedEventHandler(OnResizerDragStarted);
-            _resizer.DragDelta += new System.Windows.Controls.Primitives.DragDeltaEventHandler(OnResizerDragDelta);
-            _resizer.DragCompleted += new System.Windows.Controls.Primitives.DragCompletedEventHandler(OnResizerDragCompleted);
+      _resizer.DragStarted += new System.Windows.Controls.Primitives.DragStartedEventHandler( OnResizerDragStarted );
+      _resizer.DragDelta += new System.Windows.Controls.Primitives.DragDeltaEventHandler( OnResizerDragDelta );
+      _resizer.DragCompleted += new System.Windows.Controls.Primitives.DragCompletedEventHandler( OnResizerDragCompleted );
 
-            if (_side == AnchorSide.Right)
-            {
-                _internalGrid.ColumnDefinitions.Add(new ColumnDefinition(){ Width = new GridLength(_manager.GridSplitterWidth)});
-                _internalGrid.ColumnDefinitions.Add(new ColumnDefinition(){
-                    Width = _model.AutoHideWidth == 0.0 ? new GridLength(_model.AutoHideMinWidth) : new GridLength(_model.AutoHideWidth, GridUnitType.Pixel)});
+      if( _side == AnchorSide.Right )
+      {
+        _internalGrid.ColumnDefinitions.Add( new ColumnDefinition() { Width = new GridLength( _manager.GridSplitterWidth ) } );
+        _internalGrid.ColumnDefinitions.Add( new ColumnDefinition()
+        {
+          Width = _model.AutoHideWidth == 0.0 ? new GridLength( _model.AutoHideMinWidth ) : new GridLength( _model.AutoHideWidth, GridUnitType.Pixel )
+        } );
 
-                Grid.SetColumn(_resizer, 0);
-                Grid.SetColumn(_internalHost, 1);
+        Grid.SetColumn( _resizer, 0 );
+        Grid.SetColumn( _internalHost, 1 );
 
-                _resizer.Cursor = Cursors.SizeWE;
+        _resizer.Cursor = Cursors.SizeWE;
 
-                HorizontalAlignment = System.Windows.HorizontalAlignment.Right;
-                VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
-            }
-            else if (_side == AnchorSide.Left)
-            {
-                _internalGrid.ColumnDefinitions.Add(new ColumnDefinition()
-                {
-                    Width = _model.AutoHideWidth == 0.0 ? new GridLength(_model.AutoHideMinWidth) : new GridLength(_model.AutoHideWidth, GridUnitType.Pixel),
-                });
-                _internalGrid.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(_manager.GridSplitterWidth) });
+        HorizontalAlignment = System.Windows.HorizontalAlignment.Right;
+        VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
+      }
+      else if( _side == AnchorSide.Left )
+      {
+        _internalGrid.ColumnDefinitions.Add( new ColumnDefinition()
+        {
+          Width = _model.AutoHideWidth == 0.0 ? new GridLength( _model.AutoHideMinWidth ) : new GridLength( _model.AutoHideWidth, GridUnitType.Pixel ),
+        } );
+        _internalGrid.ColumnDefinitions.Add( new ColumnDefinition() { Width = new GridLength( _manager.GridSplitterWidth ) } );
 
-                Grid.SetColumn(_internalHost, 0);
-                Grid.SetColumn(_resizer, 1);
+        Grid.SetColumn( _internalHost, 0 );
+        Grid.SetColumn( _resizer, 1 );
 
-                _resizer.Cursor = Cursors.SizeWE;
+        _resizer.Cursor = Cursors.SizeWE;
 
-                HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
-                VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
-            }
-            else if (_side == AnchorSide.Top)
-            {
-                _internalGrid.RowDefinitions.Add(new RowDefinition()
-                {
-                    Height = _model.AutoHideHeight == 0.0 ? new GridLength(_model.AutoHideMinHeight) : new GridLength(_model.AutoHideHeight, GridUnitType.Pixel),
-                });
-                _internalGrid.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(_manager.GridSplitterHeight) });
+        HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
+        VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
+      }
+      else if( _side == AnchorSide.Top )
+      {
+        _internalGrid.RowDefinitions.Add( new RowDefinition()
+        {
+          Height = _model.AutoHideHeight == 0.0 ? new GridLength( _model.AutoHideMinHeight ) : new GridLength( _model.AutoHideHeight, GridUnitType.Pixel ),
+        } );
+        _internalGrid.RowDefinitions.Add( new RowDefinition() { Height = new GridLength( _manager.GridSplitterHeight ) } );
 
-                Grid.SetRow(_internalHost, 0);
-                Grid.SetRow(_resizer, 1);
+        Grid.SetRow( _internalHost, 0 );
+        Grid.SetRow( _resizer, 1 );
 
-                _resizer.Cursor = Cursors.SizeNS;
+        _resizer.Cursor = Cursors.SizeNS;
 
-                VerticalAlignment = System.Windows.VerticalAlignment.Top;
-                HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
+        VerticalAlignment = System.Windows.VerticalAlignment.Top;
+        HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
 
-            }
-            else if (_side == AnchorSide.Bottom)
-            {
-                _internalGrid.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(_manager.GridSplitterHeight) });
-                _internalGrid.RowDefinitions.Add(new RowDefinition()
-                {
-                    Height = _model.AutoHideHeight == 0.0 ? new GridLength(_model.AutoHideMinHeight) : new GridLength(_model.AutoHideHeight, GridUnitType.Pixel),
-                });
+      }
+      else if( _side == AnchorSide.Bottom )
+      {
+        _internalGrid.RowDefinitions.Add( new RowDefinition() { Height = new GridLength( _manager.GridSplitterHeight ) } );
+        _internalGrid.RowDefinitions.Add( new RowDefinition()
+        {
+          Height = _model.AutoHideHeight == 0.0 ? new GridLength( _model.AutoHideMinHeight ) : new GridLength( _model.AutoHideHeight, GridUnitType.Pixel ),
+        } );
 
-                Grid.SetRow(_resizer, 0);
-                Grid.SetRow(_internalHost, 1);
+        Grid.SetRow( _resizer, 0 );
+        Grid.SetRow( _internalHost, 1 );
 
-                _resizer.Cursor = Cursors.SizeNS;
+        _resizer.Cursor = Cursors.SizeNS;
 
-                VerticalAlignment = System.Windows.VerticalAlignment.Bottom;
-                HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
-            }
+        VerticalAlignment = System.Windows.VerticalAlignment.Bottom;
+        HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
+      }
 
 
-            _internalGrid.Children.Add(_resizer);
-            _internalGrid.Children.Add(_internalHost);
-            _internalHostPresenter.Content = _internalGrid;
-        }
+      _internalGrid.Children.Add( _resizer );
+      _internalGrid.Children.Add( _internalHost );
+      _internalHostPresenter.Content = _internalGrid;
+    }
 
-        void RemoveInternalGrid()
-        {
-            _resizer.DragStarted -= new System.Windows.Controls.Primitives.DragStartedEventHandler(OnResizerDragStarted);
-            _resizer.DragDelta -= new System.Windows.Controls.Primitives.DragDeltaEventHandler(OnResizerDragDelta);
-            _resizer.DragCompleted -= new System.Windows.Controls.Primitives.DragCompletedEventHandler(OnResizerDragCompleted);
+    void RemoveInternalGrid()
+    {
+      _resizer.DragStarted -= new System.Windows.Controls.Primitives.DragStartedEventHandler( OnResizerDragStarted );
+      _resizer.DragDelta -= new System.Windows.Controls.Primitives.DragDeltaEventHandler( OnResizerDragDelta );
+      _resizer.DragCompleted -= new System.Windows.Controls.Primitives.DragCompletedEventHandler( OnResizerDragCompleted );
 
-            _internalHostPresenter.Content = null;
-        }
+      _internalHostPresenter.Content = null;
+    }
 
 
-        protected override bool HasFocusWithinCore()
-        {
-            return false;
-        }
+    protected override bool HasFocusWithinCore()
+    {
+      return false;
+    }
 
-        #region Resizer
+    #region Resizer
 
-        Border _resizerGhost = null;
-        Window _resizerWindowHost = null;
-        Vector _initialStartPoint;
+    Border _resizerGhost = null;
+    Window _resizerWindowHost = null;
+    Vector _initialStartPoint;
 
-        void ShowResizerOverlayWindow(LayoutGridResizerControl splitter)
-        {
-            _resizerGhost = new Border()
-            {
-                Background = splitter.BackgroundWhileDragging,
-                Opacity = splitter.OpacityWhileDragging
-            };
-
-            var areaElement = _manager.GetAutoHideAreaElement();
-            var modelControlActualSize = this._internalHost.TransformActualSizeToAncestor();
-
-            Point ptTopLeftScreen = areaElement.PointToScreenDPIWithoutFlowDirection(new Point());
-
-            var managerSize = areaElement.TransformActualSizeToAncestor();
-
-            Size windowSize;
-
-            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
-            {
-                windowSize = new Size(
-                    managerSize.Width - 25.0 + splitter.ActualWidth,
-                    managerSize.Height);
-
-                _resizerGhost.Width = splitter.ActualWidth;
-                _resizerGhost.Height = windowSize.Height;
-                ptTopLeftScreen.Offset(25, 0.0);
-            }
-            else
-            {
-                windowSize = new Size(
-                    managerSize.Width,
-                    managerSize.Height - _model.AutoHideMinHeight - 25.0 + splitter.ActualHeight);
-
-                _resizerGhost.Height = splitter.ActualHeight;
-                _resizerGhost.Width = windowSize.Width;
-                ptTopLeftScreen.Offset(0.0, 25.0);
-            }
-
-            _initialStartPoint = splitter.PointToScreenDPIWithoutFlowDirection(new Point()) - ptTopLeftScreen;
-
-            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
-            {
-                Canvas.SetLeft(_resizerGhost, _initialStartPoint.X);
-            }
-            else
-            {
-                Canvas.SetTop(_resizerGhost, _initialStartPoint.Y);
-            }
-
-            Canvas panelHostResizer = new Canvas()
-            {
-                HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch,
-                VerticalAlignment = System.Windows.VerticalAlignment.Stretch
-            };
-
-            panelHostResizer.Children.Add(_resizerGhost);
-
-
-            _resizerWindowHost = new Window()
-            {
-                ResizeMode = ResizeMode.NoResize,
-                WindowStyle = System.Windows.WindowStyle.None,
-                ShowInTaskbar = false,
-                AllowsTransparency = true,
-                Background = null,
-                Width = windowSize.Width,
-                Height = windowSize.Height,
-                Left = ptTopLeftScreen.X,
-                Top = ptTopLeftScreen.Y,
-                ShowActivated = false,
-                Owner = Window.GetWindow(this),
-                Content = panelHostResizer
-            };
-
-            _resizerWindowHost.Show();
-        }
+    void ShowResizerOverlayWindow( LayoutGridResizerControl splitter )
+    {
+      _resizerGhost = new Border()
+      {
+        Background = splitter.BackgroundWhileDragging,
+        Opacity = splitter.OpacityWhileDragging
+      };
+
+      var areaElement = _manager.GetAutoHideAreaElement();
+      var modelControlActualSize = this._internalHost.TransformActualSizeToAncestor();
+
+      Point ptTopLeftScreen = areaElement.PointToScreenDPIWithoutFlowDirection( new Point() );
+
+      var managerSize = areaElement.TransformActualSizeToAncestor();
+
+      Size windowSize;
+
+      if( _side == AnchorSide.Right || _side == AnchorSide.Left )
+      {
+        windowSize = new Size(
+            managerSize.Width - 25.0 + splitter.ActualWidth,
+            managerSize.Height );
+
+        _resizerGhost.Width = splitter.ActualWidth;
+        _resizerGhost.Height = windowSize.Height;
+        ptTopLeftScreen.Offset( 25, 0.0 );
+      }
+      else
+      {
+        windowSize = new Size(
+            managerSize.Width,
+            managerSize.Height - _model.AutoHideMinHeight - 25.0 + splitter.ActualHeight );
+
+        _resizerGhost.Height = splitter.ActualHeight;
+        _resizerGhost.Width = windowSize.Width;
+        ptTopLeftScreen.Offset( 0.0, 25.0 );
+      }
+
+      _initialStartPoint = splitter.PointToScreenDPIWithoutFlowDirection( new Point() ) - ptTopLeftScreen;
+
+      if( _side == AnchorSide.Right || _side == AnchorSide.Left )
+      {
+        Canvas.SetLeft( _resizerGhost, _initialStartPoint.X );
+      }
+      else
+      {
+        Canvas.SetTop( _resizerGhost, _initialStartPoint.Y );
+      }
+
+      Canvas panelHostResizer = new Canvas()
+      {
+        HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch,
+        VerticalAlignment = System.Windows.VerticalAlignment.Stretch
+      };
+
+      panelHostResizer.Children.Add( _resizerGhost );
+
+
+      _resizerWindowHost = new Window()
+      {
+        ResizeMode = ResizeMode.NoResize,
+        WindowStyle = System.Windows.WindowStyle.None,
+        ShowInTaskbar = false,
+        AllowsTransparency = true,
+        Background = null,
+        Width = windowSize.Width,
+        Height = windowSize.Height,
+        Left = ptTopLeftScreen.X,
+        Top = ptTopLeftScreen.Y,
+        ShowActivated = false,
+        Owner = Window.GetWindow( this ),
+        Content = panelHostResizer
+      };
+
+      _resizerWindowHost.Show();
+    }
 
-        void HideResizerOverlayWindow()
-        {
-            if (_resizerWindowHost != null)
-            {
-                _resizerWindowHost.Close();
-                _resizerWindowHost = null;
-            }
-        }
+    void HideResizerOverlayWindow()
+    {
+      if( _resizerWindowHost != null )
+      {
+        _resizerWindowHost.Close();
+        _resizerWindowHost = null;
+      }
+    }
 
-        internal bool IsResizing
-        {
-            get;
-            private set;
-        }
+    internal bool IsResizing
+    {
+      get;
+      private set;
+    }
 
-        void OnResizerDragCompleted(object sender, System.Windows.Controls.Primitives.DragCompletedEventArgs e)
-        {
-            LayoutGridResizerControl splitter = sender as LayoutGridResizerControl;
-            var rootVisual = this.FindVisualTreeRoot() as Visual;
-
-            var trToWnd = TransformToAncestor(rootVisual);
-            Vector transformedDelta = trToWnd.Transform(new Point(e.HorizontalChange, e.VerticalChange)) -
-                trToWnd.Transform(new Point());
-
-            double delta;
-            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
-                delta = Canvas.GetLeft(_resizerGhost) - _initialStartPoint.X;
-            else
-                delta = Canvas.GetTop(_resizerGhost) - _initialStartPoint.Y;
-
-            if (_side == AnchorSide.Right)
-            {
-                if (_model.AutoHideWidth == 0.0)
-                    _model.AutoHideWidth = _internalHost.ActualWidth - delta;
-                else
-                    _model.AutoHideWidth -= delta;
-
-                _internalGrid.ColumnDefinitions[1].Width = new GridLength(_model.AutoHideWidth, GridUnitType.Pixel);
-            }
-            else if (_side == AnchorSide.Left)
-            {
-                if (_model.AutoHideWidth == 0.0)
-                    _model.AutoHideWidth = _internalHost.ActualWidth + delta;
-                else
-                    _model.AutoHideWidth += delta;
-
-                _internalGrid.ColumnDefinitions[0].Width = new GridLength(_model.AutoHideWidth, GridUnitType.Pixel);
-            }
-            else if (_side == AnchorSide.Top)
-            {
-                if (_model.AutoHideHeight == 0.0)
-                    _model.AutoHideHeight = _internalHost.ActualHeight + delta;
-                else
-                    _model.AutoHideHeight += delta;
-
-                _internalGrid.RowDefinitions[0].Height = new GridLength(_model.AutoHideHeight, GridUnitType.Pixel);
-            }
-            else if (_side == AnchorSide.Bottom)
-            {
-                if (_model.AutoHideHeight == 0.0)
-                    _model.AutoHideHeight = _internalHost.ActualHeight - delta;
-                else
-                    _model.AutoHideHeight -= delta;
-
-                _internalGrid.RowDefinitions[1].Height = new GridLength(_model.AutoHideHeight, GridUnitType.Pixel);
-            }
-
-            HideResizerOverlayWindow();
-
-            IsResizing = false;
-            InvalidateMeasure();
-        }
+    void OnResizerDragCompleted( object sender, System.Windows.Controls.Primitives.DragCompletedEventArgs e )
+    {
+      LayoutGridResizerControl splitter = sender as LayoutGridResizerControl;
+      var rootVisual = this.FindVisualTreeRoot() as Visual;
+
+      var trToWnd = TransformToAncestor( rootVisual );
+      Vector transformedDelta = trToWnd.Transform( new Point( e.HorizontalChange, e.VerticalChange ) ) -
+          trToWnd.Transform( new Point() );
+
+      double delta;
+      if( _side == AnchorSide.Right || _side == AnchorSide.Left )
+        delta = Canvas.GetLeft( _resizerGhost ) - _initialStartPoint.X;
+      else
+        delta = Canvas.GetTop( _resizerGhost ) - _initialStartPoint.Y;
+
+      if( _side == AnchorSide.Right )
+      {
+        if( _model.AutoHideWidth == 0.0 )
+          _model.AutoHideWidth = _internalHost.ActualWidth - delta;
+        else
+          _model.AutoHideWidth -= delta;
+
+        _internalGrid.ColumnDefinitions[ 1 ].Width = new GridLength( _model.AutoHideWidth, GridUnitType.Pixel );
+      }
+      else if( _side == AnchorSide.Left )
+      {
+        if( _model.AutoHideWidth == 0.0 )
+          _model.AutoHideWidth = _internalHost.ActualWidth + delta;
+        else
+          _model.AutoHideWidth += delta;
+
+        _internalGrid.ColumnDefinitions[ 0 ].Width = new GridLength( _model.AutoHideWidth, GridUnitType.Pixel );
+      }
+      else if( _side == AnchorSide.Top )
+      {
+        if( _model.AutoHideHeight == 0.0 )
+          _model.AutoHideHeight = _internalHost.ActualHeight + delta;
+        else
+          _model.AutoHideHeight += delta;
+
+        _internalGrid.RowDefinitions[ 0 ].Height = new GridLength( _model.AutoHideHeight, GridUnitType.Pixel );
+      }
+      else if( _side == AnchorSide.Bottom )
+      {
+        if( _model.AutoHideHeight == 0.0 )
+          _model.AutoHideHeight = _internalHost.ActualHeight - delta;
+        else
+          _model.AutoHideHeight -= delta;
+
+        _internalGrid.RowDefinitions[ 1 ].Height = new GridLength( _model.AutoHideHeight, GridUnitType.Pixel );
+      }
+
+      HideResizerOverlayWindow();
+
+      IsResizing = false;
+      InvalidateMeasure();
+    }
 
-        void OnResizerDragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
-        {
-            LayoutGridResizerControl splitter = sender as LayoutGridResizerControl;
-            var rootVisual = this.FindVisualTreeRoot() as Visual;
-
-            var trToWnd = TransformToAncestor(rootVisual);
-            Vector transformedDelta = trToWnd.Transform(new Point(e.HorizontalChange, e.VerticalChange)) -
-                trToWnd.Transform(new Point());
-
-            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
-            {
-                if (FrameworkElement.GetFlowDirection(_internalHost) == System.Windows.FlowDirection.RightToLeft)
-                    transformedDelta.X = -transformedDelta.X;
-                Canvas.SetLeft(_resizerGhost, MathHelper.MinMax(_initialStartPoint.X + transformedDelta.X, 0.0, _resizerWindowHost.Width - _resizerGhost.Width));
-            }
-            else
-            {
-                Canvas.SetTop(_resizerGhost, MathHelper.MinMax(_initialStartPoint.Y + transformedDelta.Y, 0.0, _resizerWindowHost.Height - _resizerGhost.Height));
-            }
-        }
+    void OnResizerDragDelta( object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e )
+    {
+      LayoutGridResizerControl splitter = sender as LayoutGridResizerControl;
+      var rootVisual = this.FindVisualTreeRoot() as Visual;
+
+      var trToWnd = TransformToAncestor( rootVisual );
+      Vector transformedDelta = trToWnd.Transform( new Point( e.HorizontalChange, e.VerticalChange ) ) -
+          trToWnd.Transform( new Point() );
+
+      if( _side == AnchorSide.Right || _side == AnchorSide.Left )
+      {
+        if( FrameworkElement.GetFlowDirection( _internalHost ) == System.Windows.FlowDirection.RightToLeft )
+          transformedDelta.X = -transformedDelta.X;
+        Canvas.SetLeft( _resizerGhost, MathHelper.MinMax( _initialStartPoint.X + transformedDelta.X, 0.0, _resizerWindowHost.Width - _resizerGhost.Width ) );
+      }
+      else
+      {
+        Canvas.SetTop( _resizerGhost, MathHelper.MinMax( _initialStartPoint.Y + transformedDelta.Y, 0.0, _resizerWindowHost.Height - _resizerGhost.Height ) );
+      }
+    }
 
-        void OnResizerDragStarted(object sender, System.Windows.Controls.Primitives.DragStartedEventArgs e)
-        {
-            var resizer = sender as LayoutGridResizerControl;
-            ShowResizerOverlayWindow(resizer);
-            IsResizing = true;
-        }
-        #endregion
+    void OnResizerDragStarted( object sender, System.Windows.Controls.Primitives.DragStartedEventArgs e )
+    {
+      var resizer = sender as LayoutGridResizerControl;
+      ShowResizerOverlayWindow( resizer );
+      IsResizing = true;
+    }
+    #endregion
 
-        protected override System.Collections.IEnumerator LogicalChildren
-        {
-            get
-            {
-                if (_internalHostPresenter == null)
-                    return new UIElement[] { }.GetEnumerator();
-                return new UIElement[] { _internalHostPresenter }.GetEnumerator();
-            }
-        }
+    protected override System.Collections.IEnumerator LogicalChildren
+    {
+      get
+      {
+        if( _internalHostPresenter == null )
+          return new UIElement[] { }.GetEnumerator();
+        return new UIElement[] { _internalHostPresenter }.GetEnumerator();
+      }
+    }
 
-        protected override Size MeasureOverride(Size constraint)
-        {
-            if (_internalHostPresenter == null)
-                return base.MeasureOverride(constraint);
+    protected override Size MeasureOverride( Size constraint )
+    {
+      if( _internalHostPresenter == null )
+        return base.MeasureOverride( constraint );
 
-            _internalHostPresenter.Measure(constraint);
-            //return base.MeasureOverride(constraint);
-            return _internalHostPresenter.DesiredSize;
-        }
+      _internalHostPresenter.Measure( constraint );
+      //return base.MeasureOverride(constraint);
+      return _internalHostPresenter.DesiredSize;
+    }
 
-        protected override Size ArrangeOverride(Size finalSize)
-        {
-            if (_internalHostPresenter == null)
-                return base.ArrangeOverride(finalSize);
+    protected override Size ArrangeOverride( Size finalSize )
+    {
+      if( _internalHostPresenter == null )
+        return base.ArrangeOverride( finalSize );
 
-            _internalHostPresenter.Arrange(new Rect(finalSize));
-            return base.ArrangeOverride(finalSize);// new Size(_internalHostPresenter.ActualWidth, _internalHostPresenter.ActualHeight);
-        }
+      _internalHostPresenter.Arrange( new Rect( finalSize ) );
+      return base.ArrangeOverride( finalSize );// new Size(_internalHostPresenter.ActualWidth, _internalHostPresenter.ActualHeight);
+    }
 
-        #region Background
+    #region Background
 
-        /// <summary>
-        /// Background Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty BackgroundProperty =
-            DependencyProperty.Register("Background", typeof(Brush), typeof(LayoutAutoHideWindowControl),
-                new FrameworkPropertyMetadata((Brush)null));
+    /// <summary>
+    /// Background Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty BackgroundProperty =
+        DependencyProperty.Register( "Background", typeof( Brush ), typeof( LayoutAutoHideWindowControl ),
+            new FrameworkPropertyMetadata( ( Brush )null ) );
 
-        /// <summary>
-        /// Gets or sets the Background property.  This dependency property 
-        /// indicates background of the autohide childwindow.
-        /// </summary>
-        public Brush Background
-        {
-            get { return (Brush)GetValue(BackgroundProperty); }
-            set { SetValue(BackgroundProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the Background property.  This dependency property 
+    /// indicates background of the autohide childwindow.
+    /// </summary>
+    public Brush Background
+    {
+      get
+      {
+        return ( Brush )GetValue( BackgroundProperty );
+      }
+      set
+      {
+        SetValue( BackgroundProperty, value );
+      }
+    }
 
-        #endregion
+    #endregion
 
-        internal bool IsWin32MouseOver
-        {
-            get
-            {
-                var ptMouse = new Win32Helper.Win32Point();
-                if (!Win32Helper.GetCursorPos(ref ptMouse))
-                    return false;
+    internal bool IsWin32MouseOver
+    {
+      get
+      {
+        var ptMouse = new Win32Helper.Win32Point();
+        if( !Win32Helper.GetCursorPos( ref ptMouse ) )
+          return false;
 
-                Point location = this.PointToScreenDPI(new Point());
+        Point location = this.PointToScreenDPI( new Point() );
 
-                Rect rectWindow = this.GetScreenArea();
-                if (rectWindow.Contains(new Point(ptMouse.X, ptMouse.Y)))
-                    return true;
+        Rect rectWindow = this.GetScreenArea();
+        if( rectWindow.Contains( new Point( ptMouse.X, ptMouse.Y ) ) )
+          return true;
 
-                var manager = Model.Root.Manager;
-                var anchor = manager.FindVisualChildren<LayoutAnchorControl>().Where(c => c.Model == Model).FirstOrDefault();
+        var manager = Model.Root.Manager;
+        var anchor = manager.FindVisualChildren<LayoutAnchorControl>().Where( c => c.Model == Model ).FirstOrDefault();
 
-                if (anchor == null)
-                    return false;
+        if( anchor == null )
+          return false;
 
-                location = anchor.PointToScreenDPI(new Point());
+        location = anchor.PointToScreenDPI( new Point() );
 
-                if (anchor.IsMouseOver)
-                    return true;
+        if( anchor.IsMouseOver )
+          return true;
 
-                return false;
-            }
-        }
+        return false;
+      }
+    }
 
-        #region AnchorableStyle
+    #region AnchorableStyle
 
-        /// <summary>
-        /// AnchorableStyle Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableStyleProperty =
-            DependencyProperty.Register("AnchorableStyle", typeof(Style), typeof(LayoutAutoHideWindowControl),
-                new FrameworkPropertyMetadata((Style)null));
+    /// <summary>
+    /// AnchorableStyle Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableStyleProperty =
+        DependencyProperty.Register( "AnchorableStyle", typeof( Style ), typeof( LayoutAutoHideWindowControl ),
+            new FrameworkPropertyMetadata( ( Style )null ) );
 
-        /// <summary>
-        /// Gets or sets the AnchorableStyle property. This dependency property 
-        /// indicates the style to apply to the LayoutAnchorableControl hosted in this auto hide window.
-        /// </summary>
-        public Style AnchorableStyle
-        {
-            get { return (Style)GetValue(AnchorableStyleProperty); }
-            set { SetValue(AnchorableStyleProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the AnchorableStyle property. This dependency property 
+    /// indicates the style to apply to the LayoutAnchorableControl hosted in this auto hide window.
+    /// </summary>
+    public Style AnchorableStyle
+    {
+      get
+      {
+        return ( Style )GetValue( AnchorableStyleProperty );
+      }
+      set
+      {
+        SetValue( AnchorableStyleProperty, value );
+      }
+    }
 
-        #endregion
+    #endregion
 
 
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentControl.cs
index 9e2f8449..5ecc3963 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentControl.cs
@@ -160,6 +160,7 @@ protected override void OnMouseRightButtonDown( MouseButtonEventArgs e )
       base.OnMouseLeftButtonDown( e );
     }
 
+
     private void SetIsActive()
     {
       if( this.Model != null )
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentPaneControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentPaneControl.cs
index 8e84124d..1e173520 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentPaneControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutDocumentPaneControl.cs
@@ -16,83 +16,84 @@ This program is provided to you under the terms of the Microsoft Public
 
 using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Windows;
-using System.Collections.ObjectModel;
 using System.Windows.Controls;
 using System.Windows.Data;
 using Xceed.Wpf.AvalonDock.Layout;
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class LayoutDocumentPaneControl : TabControl, ILayoutControl//, ILogicalChildrenContainer
+  public class LayoutDocumentPaneControl : TabControl, ILayoutControl//, ILogicalChildrenContainer
+  {
+    static LayoutDocumentPaneControl()
     {
-        static LayoutDocumentPaneControl()
-        {
-            FocusableProperty.OverrideMetadata(typeof(LayoutDocumentPaneControl), new FrameworkPropertyMetadata(false));
-        }
+      FocusableProperty.OverrideMetadata( typeof( LayoutDocumentPaneControl ), new FrameworkPropertyMetadata( false ) );
+    }
 
 
-        internal LayoutDocumentPaneControl(LayoutDocumentPane model)
-        {
-            if (model == null)
-                throw new ArgumentNullException("model");
+    internal LayoutDocumentPaneControl( LayoutDocumentPane model )
+    {
+      if( model == null )
+        throw new ArgumentNullException( "model" );
 
-            _model = model;
-            SetBinding(ItemsSourceProperty, new Binding("Model.Children") { Source = this });
-            SetBinding(FlowDirectionProperty, new Binding("Model.Root.Manager.FlowDirection") { Source = this });
+      _model = model;
+      SetBinding( ItemsSourceProperty, new Binding( "Model.Children" ) { Source = this } );
+      SetBinding( FlowDirectionProperty, new Binding( "Model.Root.Manager.FlowDirection" ) { Source = this } );
 
-            this.LayoutUpdated += new EventHandler(OnLayoutUpdated);
-        }
+      this.LayoutUpdated += new EventHandler( OnLayoutUpdated );
+    }
 
-        void OnLayoutUpdated(object sender, EventArgs e)
-        {
-            var modelWithAtcualSize = _model as ILayoutPositionableElementWithActualSize;
-            modelWithAtcualSize.ActualWidth = ActualWidth;
-            modelWithAtcualSize.ActualHeight = ActualHeight;
-        }
+    void OnLayoutUpdated( object sender, EventArgs e )
+    {
+      var modelWithAtcualSize = _model as ILayoutPositionableElementWithActualSize;
+      modelWithAtcualSize.ActualWidth = ActualWidth;
+      modelWithAtcualSize.ActualHeight = ActualHeight;
+    }
 
-        protected override void OnSelectionChanged(SelectionChangedEventArgs e)
-        {
-            base.OnSelectionChanged(e);
+    protected override void OnSelectionChanged( SelectionChangedEventArgs e )
+    {
+      base.OnSelectionChanged( e );
 
-            if (_model.SelectedContent != null)
-                _model.SelectedContent.IsActive = true;
-        }
+      if( _model.SelectedContent != null )
+        _model.SelectedContent.IsActive = true;
+    }
 
-        List<object> _logicalChildren = new List<object>();
+    List<object> _logicalChildren = new List<object>();
 
-        protected override System.Collections.IEnumerator LogicalChildren
-        {
-            get
-            {
-                return _logicalChildren.GetEnumerator();
-            }
-        }
+    protected override System.Collections.IEnumerator LogicalChildren
+    {
+      get
+      {
+        return _logicalChildren.GetEnumerator();
+      }
+    }
 
-        LayoutDocumentPane _model;
+    LayoutDocumentPane _model;
 
-        public ILayoutElement Model
-        {
-            get { return _model; }
-        }
+    public ILayoutElement Model
+    {
+      get
+      {
+        return _model;
+      }
+    }
 
-        protected override void OnMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e)
-        {
-            base.OnMouseLeftButtonDown(e);
+    protected override void OnMouseLeftButtonDown( System.Windows.Input.MouseButtonEventArgs e )
+    {
+      base.OnMouseLeftButtonDown( e );
 
-            if (!e.Handled && _model.SelectedContent != null)
-                _model.SelectedContent.IsActive = true;
-        }
+      if( !e.Handled && _model.SelectedContent != null )
+        _model.SelectedContent.IsActive = true;
+    }
 
-        protected override void OnMouseRightButtonDown(System.Windows.Input.MouseButtonEventArgs e)
-        {
-            base.OnMouseRightButtonDown(e);
+    protected override void OnMouseRightButtonDown( System.Windows.Input.MouseButtonEventArgs e )
+    {
+      base.OnMouseRightButtonDown( e );
 
-            if (!e.Handled && _model.SelectedContent != null)
-                _model.SelectedContent.IsActive = true;
+      if( !e.Handled && _model.SelectedContent != null )
+        _model.SelectedContent.IsActive = true;
 
-        }
     }
+
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutFloatingWindowControl.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutFloatingWindowControl.cs
index 090d880f..e754802c 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutFloatingWindowControl.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutFloatingWindowControl.cs
@@ -15,9 +15,7 @@ This program is provided to you under the terms of the Microsoft Public
   ***********************************************************************************/
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows;
 using System.Runtime.InteropServices;
 using System.Windows.Interop;
@@ -26,10 +24,8 @@ This program is provided to you under the terms of the Microsoft Public
 using System.Windows.Data;
 using System.Windows.Media;
 using Xceed.Wpf.AvalonDock.Layout;
-using System.Diagnostics;
 using System.Windows.Documents;
 using Xceed.Wpf.AvalonDock.Themes;
-using Microsoft.Windows.Shell;
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
@@ -50,7 +46,7 @@ static object CoerceContentValue( DependencyObject sender, object content )
       return new FloatingWindowContentHost( sender as LayoutFloatingWindowControl ) { Content = content as UIElement };
     }
 
-    protected class FloatingWindowContentHost : HwndHost
+    protected internal class FloatingWindowContentHost : HwndHost
     {
       LayoutFloatingWindowControl _owner;
       public FloatingWindowContentHost( LayoutFloatingWindowControl owner )
@@ -302,6 +298,7 @@ protected override void OnInitialized( EventArgs e )
       base.OnInitialized( e );
     }
 
+
     public abstract ILayoutElement Model
     {
       get;
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutItem.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutItem.cs
index 61880b5e..ea3b256b 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutItem.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/LayoutItem.cs
@@ -29,179 +29,180 @@ This program is provided to you under the terms of the Microsoft Public
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public abstract class LayoutItem : FrameworkElement
+  public abstract class LayoutItem : FrameworkElement
+  {
+    static LayoutItem()
     {
-        static LayoutItem()
-        { 
-            ToolTipProperty.OverrideMetadata(typeof(LayoutItem), new FrameworkPropertyMetadata(null, (s, e) => OnToolTipChanged(s,e)));
-            VisibilityProperty.OverrideMetadata(typeof(LayoutItem), new FrameworkPropertyMetadata(Visibility.Visible, (s,e) => OnVisibilityChanged(s, e)));
-        }
+      ToolTipProperty.OverrideMetadata( typeof( LayoutItem ), new FrameworkPropertyMetadata( null, ( s, e ) => OnToolTipChanged( s, e ) ) );
+      VisibilityProperty.OverrideMetadata( typeof( LayoutItem ), new FrameworkPropertyMetadata( Visibility.Visible, ( s, e ) => OnVisibilityChanged( s, e ) ) );
+    }
 
 
-        internal LayoutItem()
-        {
+    internal LayoutItem()
+    {
 
-        }
+    }
 
-        internal virtual void Attach(LayoutContent model)
-        { 
-            LayoutElement = model;
-            Model = model.Content;
+    internal virtual void Attach( LayoutContent model )
+    {
+      LayoutElement = model;
+      Model = model.Content;
 
-            InitDefaultCommands();
+      InitDefaultCommands();
 
-            LayoutElement.IsSelectedChanged+=new EventHandler(LayoutElement_IsSelectedChanged);
-            LayoutElement.IsActiveChanged+=new EventHandler(LayoutElement_IsActiveChanged);
+      LayoutElement.IsSelectedChanged += new EventHandler( LayoutElement_IsSelectedChanged );
+      LayoutElement.IsActiveChanged += new EventHandler( LayoutElement_IsActiveChanged );
 
-            DataContext = this;
-        }
+      DataContext = this;
+    }
 
 
 
-        void LayoutElement_IsActiveChanged(object sender, EventArgs e)
+    void LayoutElement_IsActiveChanged( object sender, EventArgs e )
+    {
+      if( _isActiveReentrantFlag.CanEnter )
+      {
+        using( _isActiveReentrantFlag.Enter() )
         {
-            if (_isActiveReentrantFlag.CanEnter)
-            {
-                using (_isActiveReentrantFlag.Enter())
-                {
-                    var bnd = BindingOperations.GetBinding(this, IsActiveProperty);
-                    IsActive = LayoutElement.IsActive;
-                    var bnd2 = BindingOperations.GetBinding(this, IsActiveProperty);
-                }
-            }
+          var bnd = BindingOperations.GetBinding( this, IsActiveProperty );
+          IsActive = LayoutElement.IsActive;
+          var bnd2 = BindingOperations.GetBinding( this, IsActiveProperty );
         }
+      }
+    }
 
-        void LayoutElement_IsSelectedChanged(object sender, EventArgs e)
+    void LayoutElement_IsSelectedChanged( object sender, EventArgs e )
+    {
+      if( _isSelectedReentrantFlag.CanEnter )
+      {
+        using( _isSelectedReentrantFlag.Enter() )
         {
-            if (_isSelectedReentrantFlag.CanEnter)
-            {
-                using (_isSelectedReentrantFlag.Enter())
-                {
-                    IsSelected = LayoutElement.IsSelected;
-                }
-            }
+          IsSelected = LayoutElement.IsSelected;
         }
+      }
+    }
 
-        internal virtual void Detach()
-        {
-            LayoutElement.IsSelectedChanged -= new EventHandler(LayoutElement_IsSelectedChanged);
-            LayoutElement.IsActiveChanged -= new EventHandler(LayoutElement_IsActiveChanged);
-            LayoutElement = null;
-            Model = null;
-        }
+    internal virtual void Detach()
+    {
+      LayoutElement.IsSelectedChanged -= new EventHandler( LayoutElement_IsSelectedChanged );
+      LayoutElement.IsActiveChanged -= new EventHandler( LayoutElement_IsActiveChanged );
+      LayoutElement = null;
+      Model = null;
+    }
 
-        public LayoutContent LayoutElement
-        {
-            get;
-            private set;
-        }
+    public LayoutContent LayoutElement
+    {
+      get;
+      private set;
+    }
 
-        public object Model
-        {
-            get;
-            private set;
-        }
+    public object Model
+    {
+      get;
+      private set;
+    }
 
-        ICommand _defaultCloseCommand;
-        ICommand _defaultFloatCommand;
-        ICommand _defaultDockAsDocumentCommand;
-        ICommand _defaultCloseAllButThisCommand;
-        ICommand _defaultCloseAllCommand;
-        ICommand _defaultActivateCommand;
-        ICommand _defaultNewVerticalTabGroupCommand;
-        ICommand _defaultNewHorizontalTabGroupCommand;
-        ICommand _defaultMoveToNextTabGroupCommand;
-        ICommand _defaultMoveToPreviousTabGroupCommand;
-
-        protected virtual void InitDefaultCommands()
-        {
-            _defaultCloseCommand = new RelayCommand((p) => ExecuteCloseCommand(p), (p) => CanExecuteCloseCommand(p));
-            _defaultFloatCommand = new RelayCommand((p) => ExecuteFloatCommand(p), (p) => CanExecuteFloatCommand(p));
-            _defaultDockAsDocumentCommand = new RelayCommand((p) => ExecuteDockAsDocumentCommand(p), (p) => CanExecuteDockAsDocumentCommand(p));
-            _defaultCloseAllButThisCommand = new RelayCommand((p) => ExecuteCloseAllButThisCommand(p), (p) => CanExecuteCloseAllButThisCommand(p));
-            _defaultCloseAllCommand = new RelayCommand( ( p ) => ExecuteCloseAllCommand( p ), ( p ) => CanExecuteCloseAllCommand( p ) );
-            _defaultActivateCommand = new RelayCommand( ( p ) => ExecuteActivateCommand( p ), ( p ) => CanExecuteActivateCommand( p ) );
-            _defaultNewVerticalTabGroupCommand = new RelayCommand((p) => ExecuteNewVerticalTabGroupCommand(p), (p) => CanExecuteNewVerticalTabGroupCommand(p));
-            _defaultNewHorizontalTabGroupCommand = new RelayCommand((p) => ExecuteNewHorizontalTabGroupCommand(p), (p) => CanExecuteNewHorizontalTabGroupCommand(p));
-            _defaultMoveToNextTabGroupCommand = new RelayCommand((p) => ExecuteMoveToNextTabGroupCommand(p), (p) => CanExecuteMoveToNextTabGroupCommand(p));
-            _defaultMoveToPreviousTabGroupCommand = new RelayCommand((p) => ExecuteMoveToPreviousTabGroupCommand(p), (p) => CanExecuteMoveToPreviousTabGroupCommand(p));
-        }
+    ICommand _defaultCloseCommand;
+    ICommand _defaultFloatCommand;
+    ICommand _defaultDockAsDocumentCommand;
+    ICommand _defaultCloseAllButThisCommand;
+    ICommand _defaultCloseAllCommand;
+    ICommand _defaultActivateCommand;
+    ICommand _defaultNewVerticalTabGroupCommand;
+    ICommand _defaultNewHorizontalTabGroupCommand;
+    ICommand _defaultMoveToNextTabGroupCommand;
+    ICommand _defaultMoveToPreviousTabGroupCommand;
+
+    protected virtual void InitDefaultCommands()
+    {
+      _defaultCloseCommand = new RelayCommand( ( p ) => ExecuteCloseCommand( p ), ( p ) => CanExecuteCloseCommand( p ) );
+      _defaultFloatCommand = new RelayCommand( ( p ) => ExecuteFloatCommand( p ), ( p ) => CanExecuteFloatCommand( p ) );
+      _defaultDockAsDocumentCommand = new RelayCommand( ( p ) => ExecuteDockAsDocumentCommand( p ), ( p ) => CanExecuteDockAsDocumentCommand( p ) );
+      _defaultCloseAllButThisCommand = new RelayCommand( ( p ) => ExecuteCloseAllButThisCommand( p ), ( p ) => CanExecuteCloseAllButThisCommand( p ) );
+      _defaultCloseAllCommand = new RelayCommand( ( p ) => ExecuteCloseAllCommand( p ), ( p ) => CanExecuteCloseAllCommand( p ) );
+      _defaultActivateCommand = new RelayCommand( ( p ) => ExecuteActivateCommand( p ), ( p ) => CanExecuteActivateCommand( p ) );
+      _defaultNewVerticalTabGroupCommand = new RelayCommand( ( p ) => ExecuteNewVerticalTabGroupCommand( p ), ( p ) => CanExecuteNewVerticalTabGroupCommand( p ) );
+      _defaultNewHorizontalTabGroupCommand = new RelayCommand( ( p ) => ExecuteNewHorizontalTabGroupCommand( p ), ( p ) => CanExecuteNewHorizontalTabGroupCommand( p ) );
+      _defaultMoveToNextTabGroupCommand = new RelayCommand( ( p ) => ExecuteMoveToNextTabGroupCommand( p ), ( p ) => CanExecuteMoveToNextTabGroupCommand( p ) );
+      _defaultMoveToPreviousTabGroupCommand = new RelayCommand( ( p ) => ExecuteMoveToPreviousTabGroupCommand( p ), ( p ) => CanExecuteMoveToPreviousTabGroupCommand( p ) );
+    }
 
-        protected virtual void ClearDefaultBindings()
-        {
-            if (CloseCommand == _defaultCloseCommand)
-                BindingOperations.ClearBinding(this, CloseCommandProperty);
-            if (FloatCommand == _defaultFloatCommand)
-                BindingOperations.ClearBinding(this, FloatCommandProperty);
-            if (DockAsDocumentCommand == _defaultDockAsDocumentCommand)
-                BindingOperations.ClearBinding(this, DockAsDocumentCommandProperty);
-            if (CloseAllButThisCommand == _defaultCloseAllButThisCommand)
-                BindingOperations.ClearBinding(this, CloseAllButThisCommandProperty);
-            if( CloseAllCommand == _defaultCloseAllCommand )
-              BindingOperations.ClearBinding( this, CloseAllCommandProperty );
-            if (ActivateCommand == _defaultActivateCommand)
-                BindingOperations.ClearBinding(this, ActivateCommandProperty);
-            if (NewVerticalTabGroupCommand == _defaultNewVerticalTabGroupCommand)
-                BindingOperations.ClearBinding(this, NewVerticalTabGroupCommandProperty);
-            if (NewHorizontalTabGroupCommand == _defaultNewHorizontalTabGroupCommand)
-                BindingOperations.ClearBinding(this, NewHorizontalTabGroupCommandProperty);
-            if (MoveToNextTabGroupCommand == _defaultMoveToNextTabGroupCommand)
-                BindingOperations.ClearBinding(this, MoveToNextTabGroupCommandProperty);
-            if (MoveToPreviousTabGroupCommand == _defaultMoveToPreviousTabGroupCommand)
-                BindingOperations.ClearBinding(this, MoveToPreviousTabGroupCommandProperty);
-        }
+    protected virtual void ClearDefaultBindings()
+    {
+      if( CloseCommand == _defaultCloseCommand )
+        BindingOperations.ClearBinding( this, CloseCommandProperty );
+      if( FloatCommand == _defaultFloatCommand )
+        BindingOperations.ClearBinding( this, FloatCommandProperty );
+      if( DockAsDocumentCommand == _defaultDockAsDocumentCommand )
+        BindingOperations.ClearBinding( this, DockAsDocumentCommandProperty );
+      if( CloseAllButThisCommand == _defaultCloseAllButThisCommand )
+        BindingOperations.ClearBinding( this, CloseAllButThisCommandProperty );
+      if( CloseAllCommand == _defaultCloseAllCommand )
+        BindingOperations.ClearBinding( this, CloseAllCommandProperty );
+      if( ActivateCommand == _defaultActivateCommand )
+        BindingOperations.ClearBinding( this, ActivateCommandProperty );
+      if( NewVerticalTabGroupCommand == _defaultNewVerticalTabGroupCommand )
+        BindingOperations.ClearBinding( this, NewVerticalTabGroupCommandProperty );
+      if( NewHorizontalTabGroupCommand == _defaultNewHorizontalTabGroupCommand )
+        BindingOperations.ClearBinding( this, NewHorizontalTabGroupCommandProperty );
+      if( MoveToNextTabGroupCommand == _defaultMoveToNextTabGroupCommand )
+        BindingOperations.ClearBinding( this, MoveToNextTabGroupCommandProperty );
+      if( MoveToPreviousTabGroupCommand == _defaultMoveToPreviousTabGroupCommand )
+        BindingOperations.ClearBinding( this, MoveToPreviousTabGroupCommandProperty );
+    }
 
-        protected virtual void SetDefaultBindings()
-        {
-            if (CloseCommand == null)
-                CloseCommand = _defaultCloseCommand;
-            if (FloatCommand == null)
-                FloatCommand = _defaultFloatCommand;
-            if (DockAsDocumentCommand == null)
-                DockAsDocumentCommand = _defaultDockAsDocumentCommand;
-            if (CloseAllButThisCommand == null)
-                CloseAllButThisCommand = _defaultCloseAllButThisCommand;
-            if( CloseAllCommand == null )
-                CloseAllCommand = _defaultCloseAllCommand;
-            if (ActivateCommand == null)
-                ActivateCommand = _defaultActivateCommand;
-            if (NewVerticalTabGroupCommand == null)
-                NewVerticalTabGroupCommand = _defaultNewVerticalTabGroupCommand;
-            if (NewHorizontalTabGroupCommand == null)
-                NewHorizontalTabGroupCommand = _defaultNewHorizontalTabGroupCommand;
-            if (MoveToNextTabGroupCommand == null)
-                MoveToNextTabGroupCommand = _defaultMoveToNextTabGroupCommand;
-            if (MoveToPreviousTabGroupCommand == null)
-                MoveToPreviousTabGroupCommand = _defaultMoveToPreviousTabGroupCommand;
-
-
-            IsSelected = LayoutElement.IsSelected;
-            IsActive = LayoutElement.IsActive;
-        }
+    protected virtual void SetDefaultBindings()
+    {
+      if( CloseCommand == null )
+        CloseCommand = _defaultCloseCommand;
+      if( FloatCommand == null )
+        FloatCommand = _defaultFloatCommand;
+      if( DockAsDocumentCommand == null )
+        DockAsDocumentCommand = _defaultDockAsDocumentCommand;
+      if( CloseAllButThisCommand == null )
+        CloseAllButThisCommand = _defaultCloseAllButThisCommand;
+      if( CloseAllCommand == null )
+        CloseAllCommand = _defaultCloseAllCommand;
+      if( ActivateCommand == null )
+        ActivateCommand = _defaultActivateCommand;
+      if( NewVerticalTabGroupCommand == null )
+        NewVerticalTabGroupCommand = _defaultNewVerticalTabGroupCommand;
+      if( NewHorizontalTabGroupCommand == null )
+        NewHorizontalTabGroupCommand = _defaultNewHorizontalTabGroupCommand;
+      if( MoveToNextTabGroupCommand == null )
+        MoveToNextTabGroupCommand = _defaultMoveToNextTabGroupCommand;
+      if( MoveToPreviousTabGroupCommand == null )
+        MoveToPreviousTabGroupCommand = _defaultMoveToPreviousTabGroupCommand;
+
+
+      IsSelected = LayoutElement.IsSelected;
+      IsActive = LayoutElement.IsActive;
+      CanClose = LayoutElement.CanClose;
+    }
 
-        internal void _ClearDefaultBindings()
-        {
-            ClearDefaultBindings();
-        }
+    internal void _ClearDefaultBindings()
+    {
+      ClearDefaultBindings();
+    }
 
-        internal void _SetDefaultBindings()
-        {
-            SetDefaultBindings();
-        }
+    internal void _SetDefaultBindings()
+    {
+      SetDefaultBindings();
+    }
 
-        internal bool IsViewExists()
-        {
-          return (_view != null);
-        }
+    internal bool IsViewExists()
+    {
+      return ( _view != null );
+    }
 
-        ContentPresenter _view = null;
-        public ContentPresenter View
+    ContentPresenter _view = null;
+    public ContentPresenter View
+    {
+      get
+      {
+        if( _view == null )
         {
-            get
-            {
-                if (_view == null)
-                {
-                    _view = new ContentPresenter();
+          _view = new ContentPresenter();
 
           _view.SetBinding( ContentPresenter.ContentProperty, new Binding( "Content" ) { Source = LayoutElement } );
           if( ( LayoutElement != null ) && ( LayoutElement.Root != null ) )
@@ -215,960 +216,1056 @@ public ContentPresenter View
           }
         }
 
-                return _view;
-            }
-        }
+        return _view;
+      }
+    }
 
 
-        #region Title
+    #region Title
 
-        /// <summary>
-        /// Title Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty TitleProperty =
-            DependencyProperty.Register("Title", typeof(string), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((string)null,
-                    new PropertyChangedCallback(OnTitleChanged)));
+    /// <summary>
+    /// Title Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty TitleProperty =
+        DependencyProperty.Register( "Title", typeof( string ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( string )null,
+                new PropertyChangedCallback( OnTitleChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the Title property.  This dependency property 
-        /// indicates the title of the element.
-        /// </summary>
-        public string Title
-        {
-            get { return (string)GetValue(TitleProperty); }
-            set { SetValue(TitleProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the Title property.  This dependency property 
+    /// indicates the title of the element.
+    /// </summary>
+    public string Title
+    {
+      get
+      {
+        return ( string )GetValue( TitleProperty );
+      }
+      set
+      {
+        SetValue( TitleProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the Title property.
-        /// </summary>
-        private static void OnTitleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnTitleChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the Title property.
+    /// </summary>
+    private static void OnTitleChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnTitleChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the Title property.
-        /// </summary>
-        protected virtual void OnTitleChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (LayoutElement != null)
-                LayoutElement.Title = (string)e.NewValue;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the Title property.
+    /// </summary>
+    protected virtual void OnTitleChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( LayoutElement != null )
+        LayoutElement.Title = ( string )e.NewValue;
+    }
 
-        #endregion
+    #endregion
 
-        #region ToolTip
-        private static void OnToolTipChanged(DependencyObject s, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)s).OnToolTipChanged();
-        }
+    #region ToolTip
+    private static void OnToolTipChanged( DependencyObject s, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )s ).OnToolTipChanged();
+    }
 
-        private void OnToolTipChanged()
-        {
-            if (LayoutElement != null)
-                LayoutElement.ToolTip = ToolTip;
-        }
-        #endregion
-
-        #region IconSource
-
-        /// <summary>
-        /// IconSource Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty IconSourceProperty =
-            DependencyProperty.Register("IconSource", typeof(ImageSource), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((ImageSource)null,
-                    new PropertyChangedCallback(OnIconSourceChanged)));
-
-        /// <summary>
-        /// Gets or sets the IconSource property.  This dependency property 
-        /// indicates icon associated with the item.
-        /// </summary>
-        public ImageSource IconSource
-        {
-            get { return (ImageSource)GetValue(IconSourceProperty); }
-            set { SetValue(IconSourceProperty, value); }
-        }
+    private void OnToolTipChanged()
+    {
+      if( LayoutElement != null )
+        LayoutElement.ToolTip = ToolTip;
+    }
+    #endregion
+
+    #region IconSource
+
+    /// <summary>
+    /// IconSource Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty IconSourceProperty =
+        DependencyProperty.Register( "IconSource", typeof( ImageSource ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( ImageSource )null,
+                new PropertyChangedCallback( OnIconSourceChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the IconSource property.  This dependency property 
+    /// indicates icon associated with the item.
+    /// </summary>
+    public ImageSource IconSource
+    {
+      get
+      {
+        return ( ImageSource )GetValue( IconSourceProperty );
+      }
+      set
+      {
+        SetValue( IconSourceProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the IconSource property.
-        /// </summary>
-        private static void OnIconSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnIconSourceChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the IconSource property.
+    /// </summary>
+    private static void OnIconSourceChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnIconSourceChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the IconSource property.
-        /// </summary>
-        protected virtual void OnIconSourceChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (LayoutElement != null)
-                LayoutElement.IconSource = IconSource;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the IconSource property.
+    /// </summary>
+    protected virtual void OnIconSourceChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( LayoutElement != null )
+        LayoutElement.IconSource = IconSource;
+    }
 
-        #endregion
+    #endregion
 
-        #region Visibility
+    #region Visibility
 
-        private static void OnVisibilityChanged(DependencyObject s, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)s).OnVisibilityChanged();
-        }
+    private static void OnVisibilityChanged( DependencyObject s, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )s ).OnVisibilityChanged();
+    }
 
-        protected virtual void OnVisibilityChanged()
-        {
-            if (LayoutElement != null &&
-                Visibility == System.Windows.Visibility.Collapsed)
-                LayoutElement.Close();
-        }
+    protected virtual void OnVisibilityChanged()
+    {
+      if( LayoutElement != null &&
+          Visibility == System.Windows.Visibility.Collapsed )
+        LayoutElement.Close();
+    }
 
-        #endregion
+    #endregion
 
-        #region ContentId
+    #region ContentId
 
-        /// <summary>
-        /// ContentId Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ContentIdProperty =
-            DependencyProperty.Register("ContentId", typeof(string), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((string)null,
-                    new PropertyChangedCallback(OnContentIdChanged)));
+    /// <summary>
+    /// ContentId Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ContentIdProperty =
+        DependencyProperty.Register( "ContentId", typeof( string ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( string )null,
+                new PropertyChangedCallback( OnContentIdChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the ContentId property.  This dependency property 
-        /// indicates the content id used to retrive content when deserializing layouts.
-        /// </summary>
-        public string ContentId
-        {
-            get { return (string)GetValue(ContentIdProperty); }
-            set { SetValue(ContentIdProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the ContentId property.  This dependency property 
+    /// indicates the content id used to retrive content when deserializing layouts.
+    /// </summary>
+    public string ContentId
+    {
+      get
+      {
+        return ( string )GetValue( ContentIdProperty );
+      }
+      set
+      {
+        SetValue( ContentIdProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the ContentId property.
-        /// </summary>
-        private static void OnContentIdChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnContentIdChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the ContentId property.
+    /// </summary>
+    private static void OnContentIdChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnContentIdChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the ContentId property.
-        /// </summary>
-        protected virtual void OnContentIdChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (LayoutElement != null)
-                LayoutElement.ContentId = (string)e.NewValue;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the ContentId property.
+    /// </summary>
+    protected virtual void OnContentIdChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( LayoutElement != null )
+        LayoutElement.ContentId = ( string )e.NewValue;
+    }
 
-        #endregion
+    #endregion
 
-        #region IsSelected
+    #region IsSelected
 
-        ReentrantFlag _isSelectedReentrantFlag = new ReentrantFlag();
+    ReentrantFlag _isSelectedReentrantFlag = new ReentrantFlag();
 
-        /// <summary>
-        /// IsSelected Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty IsSelectedProperty =
-            DependencyProperty.Register("IsSelected", typeof(bool), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((bool)false,
-                    new PropertyChangedCallback(OnIsSelectedChanged)));
+    /// <summary>
+    /// IsSelected Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty IsSelectedProperty =
+        DependencyProperty.Register( "IsSelected", typeof( bool ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( bool )false,
+                new PropertyChangedCallback( OnIsSelectedChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the IsSelected property.  This dependency property 
-        /// indicates if the item is selected inside its container.
-        /// </summary>
-        public bool IsSelected
-        {
-            get { return (bool)GetValue(IsSelectedProperty); }
-            set { SetValue(IsSelectedProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the IsSelected property.  This dependency property 
+    /// indicates if the item is selected inside its container.
+    /// </summary>
+    public bool IsSelected
+    {
+      get
+      {
+        return ( bool )GetValue( IsSelectedProperty );
+      }
+      set
+      {
+        SetValue( IsSelectedProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the IsSelected property.
-        /// </summary>
-        private static void OnIsSelectedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnIsSelectedChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the IsSelected property.
+    /// </summary>
+    private static void OnIsSelectedChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnIsSelectedChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the IsSelected property.
-        /// </summary>
-        protected virtual void OnIsSelectedChanged(DependencyPropertyChangedEventArgs e)
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the IsSelected property.
+    /// </summary>
+    protected virtual void OnIsSelectedChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( _isSelectedReentrantFlag.CanEnter )
+      {
+        using( _isSelectedReentrantFlag.Enter() )
         {
-            if (_isSelectedReentrantFlag.CanEnter)
-            {
-                using (_isSelectedReentrantFlag.Enter())
-                {
-                    if (LayoutElement != null)
-                        LayoutElement.IsSelected = (bool)e.NewValue;
-                }
-            }
+          if( LayoutElement != null )
+            LayoutElement.IsSelected = ( bool )e.NewValue;
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region IsActive
+    #region IsActive
 
-        ReentrantFlag _isActiveReentrantFlag = new ReentrantFlag();
+    ReentrantFlag _isActiveReentrantFlag = new ReentrantFlag();
 
-        /// <summary>
-        /// IsActive Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty IsActiveProperty =
-            DependencyProperty.Register("IsActive", typeof(bool), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((bool)false,
-                    new PropertyChangedCallback(OnIsActiveChanged)));
+    /// <summary>
+    /// IsActive Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty IsActiveProperty =
+        DependencyProperty.Register( "IsActive", typeof( bool ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( bool )false,
+                new PropertyChangedCallback( OnIsActiveChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the IsActive property.  This dependency property 
-        /// indicates if the item is active in the UI.
-        /// </summary>
-        public bool IsActive
-        {
-            get { return (bool)GetValue(IsActiveProperty); }
-            set { SetValue(IsActiveProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the IsActive property.  This dependency property 
+    /// indicates if the item is active in the UI.
+    /// </summary>
+    public bool IsActive
+    {
+      get
+      {
+        return ( bool )GetValue( IsActiveProperty );
+      }
+      set
+      {
+        SetValue( IsActiveProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the IsActive property.
-        /// </summary>
-        private static void OnIsActiveChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnIsActiveChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the IsActive property.
+    /// </summary>
+    private static void OnIsActiveChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnIsActiveChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the IsActive property.
-        /// </summary>
-        protected virtual void OnIsActiveChanged(DependencyPropertyChangedEventArgs e)
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the IsActive property.
+    /// </summary>
+    protected virtual void OnIsActiveChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( _isActiveReentrantFlag.CanEnter )
+      {
+        using( _isActiveReentrantFlag.Enter() )
         {
-            if (_isActiveReentrantFlag.CanEnter)
-            {
-                using (_isActiveReentrantFlag.Enter())
-                {
-                    if (LayoutElement != null)
-                        LayoutElement.IsActive = (bool)e.NewValue;
-                }
-            }
+          if( LayoutElement != null )
+            LayoutElement.IsActive = ( bool )e.NewValue;
         }
+      }
+    }
 
-        #endregion
-
-        #region CanClose
+    #endregion
 
-        /// <summary>
-        /// CanClose Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty CanCloseProperty =
-            DependencyProperty.Register("CanClose", typeof(bool), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((bool)true,
-                    new PropertyChangedCallback(OnCanCloseChanged)));
+    #region CanClose
 
-        /// <summary>
-        /// Gets or sets the CanClose property.  This dependency property 
-        /// indicates if the item can be closed.
-        /// </summary>
-        public bool CanClose
-        {
-            get { return (bool)GetValue(CanCloseProperty); }
-            set { SetValue(CanCloseProperty, value); }
-        }
+    /// <summary>
+    /// CanClose Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty CanCloseProperty =
+        DependencyProperty.Register( "CanClose", typeof( bool ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( bool )true,
+                new PropertyChangedCallback( OnCanCloseChanged ) ) );
 
-        /// <summary>
-        /// Handles changes to the CanClose property.
-        /// </summary>
-        private static void OnCanCloseChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnCanCloseChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the CanClose property.  This dependency property 
+    /// indicates if the item can be closed.
+    /// </summary>
+    public bool CanClose
+    {
+      get
+      {
+        return ( bool )GetValue( CanCloseProperty );
+      }
+      set
+      {
+        SetValue( CanCloseProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the CanClose property.
-        /// </summary>
-        protected virtual void OnCanCloseChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (LayoutElement != null)
-                LayoutElement.CanClose = (bool)e.NewValue;
-        }
+    /// <summary>
+    /// Handles changes to the CanClose property.
+    /// </summary>
+    private static void OnCanCloseChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnCanCloseChanged( e );
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the CanClose property.
+    /// </summary>
+    protected virtual void OnCanCloseChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( LayoutElement != null )
+        LayoutElement.CanClose = ( bool )e.NewValue;
+    }
 
-        #region CanFloat
+    #endregion
 
-        /// <summary>
-        /// CanFloat Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty CanFloatProperty =
-            DependencyProperty.Register("CanFloat", typeof(bool), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((bool)true,
-                    new PropertyChangedCallback(OnCanFloatChanged)));
+    #region CanFloat
 
-        /// <summary>
-        /// Gets or sets the CanFloat property.  This dependency property 
-        /// indicates if user can move the layout element dragging it to another position.
-        /// </summary>
-        public bool CanFloat
-        {
-            get { return (bool)GetValue(CanFloatProperty); }
-            set { SetValue(CanFloatProperty, value); }
-        }
+    /// <summary>
+    /// CanFloat Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty CanFloatProperty =
+        DependencyProperty.Register( "CanFloat", typeof( bool ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( bool )true,
+                new PropertyChangedCallback( OnCanFloatChanged ) ) );
 
-        /// <summary>
-        /// Handles changes to the CanFloat property.
-        /// </summary>
-        private static void OnCanFloatChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnCanFloatChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the CanFloat property.  This dependency property 
+    /// indicates if user can move the layout element dragging it to another position.
+    /// </summary>
+    public bool CanFloat
+    {
+      get
+      {
+        return ( bool )GetValue( CanFloatProperty );
+      }
+      set
+      {
+        SetValue( CanFloatProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the CanFloat property.
-        /// </summary>
-        protected virtual void OnCanFloatChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (LayoutElement != null)
-                LayoutElement.CanFloat = (bool)e.NewValue;
-        }
+    /// <summary>
+    /// Handles changes to the CanFloat property.
+    /// </summary>
+    private static void OnCanFloatChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnCanFloatChanged( e );
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the CanFloat property.
+    /// </summary>
+    protected virtual void OnCanFloatChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( LayoutElement != null )
+        LayoutElement.CanFloat = ( bool )e.NewValue;
+    }
 
-        #region CloseCommand
+    #endregion
 
-        /// <summary>
-        /// CloseCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty CloseCommandProperty =
-            DependencyProperty.Register("CloseCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnCloseCommandChanged),
-                    new CoerceValueCallback(CoerceCloseCommandValue)));
+    #region CloseCommand
 
-        /// <summary>
-        /// Gets or sets the CloseCommand property.  This dependency property 
-        /// indicates the command to execute when user click the document close button.
-        /// </summary>
-        public ICommand CloseCommand
-        {
-            get { return (ICommand)GetValue(CloseCommandProperty); }
-            set { SetValue(CloseCommandProperty, value); }
-        }
+    /// <summary>
+    /// CloseCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty CloseCommandProperty =
+        DependencyProperty.Register( "CloseCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnCloseCommandChanged ),
+                new CoerceValueCallback( CoerceCloseCommandValue ) ) );
 
-        /// <summary>
-        /// Handles changes to the CloseCommand property.
-        /// </summary>
-        private static void OnCloseCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnCloseCommandChanged(e);
-        }
-
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the CloseCommand property.
-        /// </summary>
-        protected virtual void OnCloseCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Gets or sets the CloseCommand property.  This dependency property 
+    /// indicates the command to execute when user click the document close button.
+    /// </summary>
+    public ICommand CloseCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( CloseCommandProperty );
+      }
+      set
+      {
+        SetValue( CloseCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the CloseCommand value.
-        /// </summary>
-        private static object CoerceCloseCommandValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Handles changes to the CloseCommand property.
+    /// </summary>
+    private static void OnCloseCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnCloseCommandChanged( e );
+    }
 
-        private bool CanExecuteCloseCommand(object parameter)
-        {
-            return LayoutElement != null && LayoutElement.CanClose;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the CloseCommand property.
+    /// </summary>
+    protected virtual void OnCloseCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteCloseCommand(object parameter)
-        {
-            Close();
-        }
+    /// <summary>
+    /// Coerces the CloseCommand value.
+    /// </summary>
+    private static object CoerceCloseCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        protected abstract void Close();
+    private bool CanExecuteCloseCommand( object parameter )
+    {
+      return LayoutElement != null && LayoutElement.CanClose;
+    }
 
+    private void ExecuteCloseCommand( object parameter )
+    {
+      Close();
+    }
 
-        #endregion
+    protected abstract void Close();
 
-        #region FloatCommand
-        /// <summary>
-        /// FloatCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty FloatCommandProperty =
-            DependencyProperty.Register("FloatCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnFloatCommandChanged),
-                    new CoerceValueCallback(CoerceFloatCommandValue)));
 
-        /// <summary>
-        /// Gets or sets the FloatCommand property.  This dependency property 
-        /// indicates the command to execute when user click the float button.
-        /// </summary>
-        /// <remarks>By default this command move the anchorable inside new floating window.</remarks>
-        public ICommand FloatCommand
-        {
-            get { return (ICommand)GetValue(FloatCommandProperty); }
-            set { SetValue(FloatCommandProperty, value); }
-        }
+    #endregion
 
-        /// <summary>
-        /// Handles changes to the FloatCommand property.
-        /// </summary>
-        private static void OnFloatCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnFloatCommandChanged(e);
-        }
+    #region FloatCommand
+    /// <summary>
+    /// FloatCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty FloatCommandProperty =
+        DependencyProperty.Register( "FloatCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnFloatCommandChanged ),
+                new CoerceValueCallback( CoerceFloatCommandValue ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the FloatCommand property.
-        /// </summary>
-        protected virtual void OnFloatCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Gets or sets the FloatCommand property.  This dependency property 
+    /// indicates the command to execute when user click the float button.
+    /// </summary>
+    /// <remarks>By default this command move the anchorable inside new floating window.</remarks>
+    public ICommand FloatCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( FloatCommandProperty );
+      }
+      set
+      {
+        SetValue( FloatCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the FloatCommand value.
-        /// </summary>
-        private static object CoerceFloatCommandValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Handles changes to the FloatCommand property.
+    /// </summary>
+    private static void OnFloatCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnFloatCommandChanged( e );
+    }
 
-        private bool CanExecuteFloatCommand(object anchorable)
-        {
-            return LayoutElement != null && LayoutElement.CanFloat && LayoutElement.FindParent<LayoutFloatingWindow>() == null;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the FloatCommand property.
+    /// </summary>
+    protected virtual void OnFloatCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteFloatCommand(object parameter)
-        {
-            LayoutElement.Root.Manager._ExecuteFloatCommand(LayoutElement);
-        }
+    /// <summary>
+    /// Coerces the FloatCommand value.
+    /// </summary>
+    private static object CoerceFloatCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        protected virtual void Float()
-        { 
+    private bool CanExecuteFloatCommand( object anchorable )
+    {
+      return LayoutElement != null && LayoutElement.CanFloat && LayoutElement.FindParent<LayoutFloatingWindow>() == null;
+    }
 
-        }
+    private void ExecuteFloatCommand( object parameter )
+    {
+      LayoutElement.Root.Manager._ExecuteFloatCommand( LayoutElement );
+    }
 
-        #endregion
-
-        #region DockAsDocumentCommand
-
-        /// <summary>
-        /// DockAsDocumentCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DockAsDocumentCommandProperty =
-            DependencyProperty.Register("DockAsDocumentCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnDockAsDocumentCommandChanged),
-                    new CoerceValueCallback(CoerceDockAsDocumentCommandValue)));
-
-        /// <summary>
-        /// Gets or sets the DockAsDocumentCommand property.  This dependency property 
-        /// indicates the command to execute when user click the DockAsDocument button.
-        /// </summary>
-        /// <remarks>By default this command move the anchorable inside the last focused document pane.</remarks>
-        public ICommand DockAsDocumentCommand
-        {
-            get { return (ICommand)GetValue(DockAsDocumentCommandProperty); }
-            set { SetValue(DockAsDocumentCommandProperty, value); }
-        }
+    protected virtual void Float()
+    {
 
-        /// <summary>
-        /// Handles changes to the DockAsDocumentCommand property.
-        /// </summary>
-        private static void OnDockAsDocumentCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnDockAsDocumentCommandChanged(e);
-        }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DockAsDocumentCommand property.
-        /// </summary>
-        protected virtual void OnDockAsDocumentCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    #endregion
+
+    #region DockAsDocumentCommand
+
+    /// <summary>
+    /// DockAsDocumentCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DockAsDocumentCommandProperty =
+        DependencyProperty.Register( "DockAsDocumentCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnDockAsDocumentCommandChanged ),
+                new CoerceValueCallback( CoerceDockAsDocumentCommandValue ) ) );
+
+    /// <summary>
+    /// Gets or sets the DockAsDocumentCommand property.  This dependency property 
+    /// indicates the command to execute when user click the DockAsDocument button.
+    /// </summary>
+    /// <remarks>By default this command move the anchorable inside the last focused document pane.</remarks>
+    public ICommand DockAsDocumentCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( DockAsDocumentCommandProperty );
+      }
+      set
+      {
+        SetValue( DockAsDocumentCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the DockAsDocumentCommand value.
-        /// </summary>
-        private static object CoerceDockAsDocumentCommandValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Handles changes to the DockAsDocumentCommand property.
+    /// </summary>
+    private static void OnDockAsDocumentCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnDockAsDocumentCommandChanged( e );
+    }
 
-        private bool CanExecuteDockAsDocumentCommand(object parameter)
-        {
-            return LayoutElement != null && LayoutElement.FindParent<LayoutDocumentPane>() == null;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DockAsDocumentCommand property.
+    /// </summary>
+    protected virtual void OnDockAsDocumentCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteDockAsDocumentCommand(object parameter)
-        {
-            LayoutElement.Root.Manager._ExecuteDockAsDocumentCommand(LayoutElement);
-        }
+    /// <summary>
+    /// Coerces the DockAsDocumentCommand value.
+    /// </summary>
+    private static object CoerceDockAsDocumentCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #endregion
+    private bool CanExecuteDockAsDocumentCommand( object parameter )
+    {
+      return LayoutElement != null && LayoutElement.FindParent<LayoutDocumentPane>() == null;
+    }
 
-        #region CloseAllButThisCommand
+    private void ExecuteDockAsDocumentCommand( object parameter )
+    {
+      LayoutElement.Root.Manager._ExecuteDockAsDocumentCommand( LayoutElement );
+    }
 
-        /// <summary>
-        /// CloseAllButThisCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty CloseAllButThisCommandProperty =
-            DependencyProperty.Register("CloseAllButThisCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnCloseAllButThisCommandChanged),
-                    new CoerceValueCallback(CoerceCloseAllButThisCommandValue)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the CloseAllButThisCommand property.  This dependency property 
-        /// indicates the 'Close All But This' command.
-        /// </summary>
-        public ICommand CloseAllButThisCommand
-        {
-            get { return (ICommand)GetValue(CloseAllButThisCommandProperty); }
-            set { SetValue(CloseAllButThisCommandProperty, value); }
-        }
+    #region CloseAllButThisCommand
 
-        /// <summary>
-        /// Handles changes to the CloseAllButThisCommand property.
-        /// </summary>
-        private static void OnCloseAllButThisCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnCloseAllButThisCommandChanged(e);
-        }
+    /// <summary>
+    /// CloseAllButThisCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty CloseAllButThisCommandProperty =
+        DependencyProperty.Register( "CloseAllButThisCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnCloseAllButThisCommandChanged ),
+                new CoerceValueCallback( CoerceCloseAllButThisCommandValue ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the CloseAllButThisCommand property.
-        /// </summary>
-        protected virtual void OnCloseAllButThisCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Gets or sets the CloseAllButThisCommand property.  This dependency property 
+    /// indicates the 'Close All But This' command.
+    /// </summary>
+    public ICommand CloseAllButThisCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( CloseAllButThisCommandProperty );
+      }
+      set
+      {
+        SetValue( CloseAllButThisCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the CloseAllButThisCommand value.
-        /// </summary>
-        private static object CoerceCloseAllButThisCommandValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Handles changes to the CloseAllButThisCommand property.
+    /// </summary>
+    private static void OnCloseAllButThisCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnCloseAllButThisCommandChanged( e );
+    }
 
-        private bool CanExecuteCloseAllButThisCommand(object parameter)
-        {
-            if (LayoutElement == null)
-                return false;
-            var root = LayoutElement.Root;
-            if (root == null)
-                return false;
-
-            return LayoutElement.Root.Manager.Layout.
-                Descendents().OfType<LayoutContent>().Where(d => d != LayoutElement && (d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow)).Any();
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the CloseAllButThisCommand property.
+    /// </summary>
+    protected virtual void OnCloseAllButThisCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteCloseAllButThisCommand(object parameter)
-        {
-            LayoutElement.Root.Manager._ExecuteCloseAllButThisCommand(LayoutElement);
-        }
+    /// <summary>
+    /// Coerces the CloseAllButThisCommand value.
+    /// </summary>
+    private static object CoerceCloseAllButThisCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #endregion
+    private bool CanExecuteCloseAllButThisCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+      var root = LayoutElement.Root;
+      if( root == null )
+        return false;
+
+      return LayoutElement.Root.Manager.Layout.
+          Descendents().OfType<LayoutContent>().Where( d => d != LayoutElement && ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).Any();
+    }
 
-        #region CloseAllCommand
+    private void ExecuteCloseAllButThisCommand( object parameter )
+    {
+      LayoutElement.Root.Manager._ExecuteCloseAllButThisCommand( LayoutElement );
+    }
 
-        /// <summary>
-        /// CloseAllCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty CloseAllCommandProperty =
-            DependencyProperty.Register( "CloseAllCommand", typeof( ICommand ), typeof( LayoutItem ),
-                new FrameworkPropertyMetadata( null,
-                    new PropertyChangedCallback( OnCloseAllCommandChanged ),
-                    new CoerceValueCallback( CoerceCloseAllCommandValue ) ) );
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the CloseAllCommand property.  This dependency property 
-        /// indicates the 'Close All' command.
-        /// </summary>
-        public ICommand CloseAllCommand
-        {
-          get
-          {
-            return ( ICommand )GetValue( CloseAllCommandProperty );
-          }
-          set
-          {
-            SetValue( CloseAllCommandProperty, value );
-          }
-        }
+    #region CloseAllCommand
 
-        /// <summary>
-        /// Handles changes to the CloseAllCommand property.
-        /// </summary>
-        private static void OnCloseAllCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
-        {
-          ( ( LayoutItem )d ).OnCloseAllCommandChanged( e );
-        }
+    /// <summary>
+    /// CloseAllCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty CloseAllCommandProperty =
+        DependencyProperty.Register( "CloseAllCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnCloseAllCommandChanged ),
+                new CoerceValueCallback( CoerceCloseAllCommandValue ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the CloseAllCommand property.
-        /// </summary>
-        protected virtual void OnCloseAllCommandChanged( DependencyPropertyChangedEventArgs e )
-        {
-        }
+    /// <summary>
+    /// Gets or sets the CloseAllCommand property.  This dependency property 
+    /// indicates the 'Close All' command.
+    /// </summary>
+    public ICommand CloseAllCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( CloseAllCommandProperty );
+      }
+      set
+      {
+        SetValue( CloseAllCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the CloseAllCommand value.
-        /// </summary>
-        private static object CoerceCloseAllCommandValue( DependencyObject d, object value )
-        {
-          return value;
-        }
+    /// <summary>
+    /// Handles changes to the CloseAllCommand property.
+    /// </summary>
+    private static void OnCloseAllCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnCloseAllCommandChanged( e );
+    }
 
-        private bool CanExecuteCloseAllCommand( object parameter )
-        {
-          if( LayoutElement == null )
-            return false;
-          var root = LayoutElement.Root;
-          if( root == null )
-            return false;
-
-          return LayoutElement.Root.Manager.Layout.
-              Descendents().OfType<LayoutContent>().Where( d => ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).Any();
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the CloseAllCommand property.
+    /// </summary>
+    protected virtual void OnCloseAllCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteCloseAllCommand( object parameter )
-        {
-          LayoutElement.Root.Manager._ExecuteCloseAllCommand( LayoutElement );
-        }
+    /// <summary>
+    /// Coerces the CloseAllCommand value.
+    /// </summary>
+    private static object CoerceCloseAllCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #endregion
+    private bool CanExecuteCloseAllCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+      var root = LayoutElement.Root;
+      if( root == null )
+        return false;
+
+      return LayoutElement.Root.Manager.Layout.
+          Descendents().OfType<LayoutContent>().Where( d => ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).Any();
+    }
 
-        #region ActivateCommand
+    private void ExecuteCloseAllCommand( object parameter )
+    {
+      LayoutElement.Root.Manager._ExecuteCloseAllCommand( LayoutElement );
+    }
 
-        /// <summary>
-        /// ActivateCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ActivateCommandProperty =
-            DependencyProperty.Register("ActivateCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnActivateCommandChanged),
-                    new CoerceValueCallback(CoerceActivateCommandValue)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the ActivateCommand property.  This dependency property 
-        /// indicates the command to execute when user wants to activate a content (either a Document or an Anchorable).
-        /// </summary>
-        public ICommand ActivateCommand
-        {
-            get { return (ICommand)GetValue(ActivateCommandProperty); }
-            set { SetValue(ActivateCommandProperty, value); }
-        }
+    #region ActivateCommand
 
-        /// <summary>
-        /// Handles changes to the ActivateCommand property.
-        /// </summary>
-        private static void OnActivateCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnActivateCommandChanged(e);
-        }
+    /// <summary>
+    /// ActivateCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ActivateCommandProperty =
+        DependencyProperty.Register( "ActivateCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnActivateCommandChanged ),
+                new CoerceValueCallback( CoerceActivateCommandValue ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the ActivateCommand property.
-        /// </summary>
-        protected virtual void OnActivateCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Gets or sets the ActivateCommand property.  This dependency property 
+    /// indicates the command to execute when user wants to activate a content (either a Document or an Anchorable).
+    /// </summary>
+    public ICommand ActivateCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( ActivateCommandProperty );
+      }
+      set
+      {
+        SetValue( ActivateCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Coerces the ActivateCommand value.
-        /// </summary>
-        private static object CoerceActivateCommandValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Handles changes to the ActivateCommand property.
+    /// </summary>
+    private static void OnActivateCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnActivateCommandChanged( e );
+    }
 
-        private bool CanExecuteActivateCommand(object parameter)
-        {
-            return LayoutElement != null;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the ActivateCommand property.
+    /// </summary>
+    protected virtual void OnActivateCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private void ExecuteActivateCommand(object parameter)
-        {
-            LayoutElement.Root.Manager._ExecuteContentActivateCommand(LayoutElement);
-        }
+    /// <summary>
+    /// Coerces the ActivateCommand value.
+    /// </summary>
+    private static object CoerceActivateCommandValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #endregion
+    private bool CanExecuteActivateCommand( object parameter )
+    {
+      return LayoutElement != null;
+    }
 
-        #region NewVerticalTabGroupCommand
+    private void ExecuteActivateCommand( object parameter )
+    {
+      LayoutElement.Root.Manager._ExecuteContentActivateCommand( LayoutElement );
+    }
 
-        /// <summary>
-        /// NewVerticalTabGroupCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty NewVerticalTabGroupCommandProperty =
-            DependencyProperty.Register("NewVerticalTabGroupCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((ICommand)null,
-                    new PropertyChangedCallback(OnNewVerticalTabGroupCommandChanged)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the NewVerticalTabGroupCommand property.  This dependency property 
-        /// indicates the new vertical tab group command.
-        /// </summary>
-        public ICommand NewVerticalTabGroupCommand
-        {
-            get { return (ICommand)GetValue(NewVerticalTabGroupCommandProperty); }
-            set { SetValue(NewVerticalTabGroupCommandProperty, value); }
-        }
+    #region NewVerticalTabGroupCommand
 
-        /// <summary>
-        /// Handles changes to the NewVerticalTabGroupCommand property.
-        /// </summary>
-        private static void OnNewVerticalTabGroupCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnNewVerticalTabGroupCommandChanged(e);
-        }
+    /// <summary>
+    /// NewVerticalTabGroupCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty NewVerticalTabGroupCommandProperty =
+        DependencyProperty.Register( "NewVerticalTabGroupCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( ICommand )null,
+                new PropertyChangedCallback( OnNewVerticalTabGroupCommandChanged ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the NewVerticalTabGroupCommand property.
-        /// </summary>
-        protected virtual void OnNewVerticalTabGroupCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Gets or sets the NewVerticalTabGroupCommand property.  This dependency property 
+    /// indicates the new vertical tab group command.
+    /// </summary>
+    public ICommand NewVerticalTabGroupCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( NewVerticalTabGroupCommandProperty );
+      }
+      set
+      {
+        SetValue( NewVerticalTabGroupCommandProperty, value );
+      }
+    }
 
-        private bool CanExecuteNewVerticalTabGroupCommand(object parameter)
-        {
-            if (LayoutElement == null)
-                return false;
-            var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
-            return ((parentDocumentGroup == null ||
-                parentDocumentGroup.ChildrenCount == 1 ||
-                parentDocumentGroup.Root.Manager.AllowMixedOrientation || 
-                parentDocumentGroup.Orientation == System.Windows.Controls.Orientation.Horizontal) &&
-                parentDocumentPane != null &&
-                parentDocumentPane.ChildrenCount > 1);
-        }
+    /// <summary>
+    /// Handles changes to the NewVerticalTabGroupCommand property.
+    /// </summary>
+    private static void OnNewVerticalTabGroupCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnNewVerticalTabGroupCommandChanged( e );
+    }
 
-        private void ExecuteNewVerticalTabGroupCommand(object parameter)
-        {
-            var layoutElement = LayoutElement;
-            var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the NewVerticalTabGroupCommand property.
+    /// </summary>
+    protected virtual void OnNewVerticalTabGroupCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-            if (parentDocumentGroup == null)
-            {
-                var grandParent = parentDocumentPane.Parent as ILayoutContainer;
-                parentDocumentGroup = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
-                grandParent.ReplaceChild(parentDocumentPane, parentDocumentGroup);
-                parentDocumentGroup.Children.Add(parentDocumentPane);
-            }
-            parentDocumentGroup.Orientation = System.Windows.Controls.Orientation.Horizontal; 
-            int indexOfParentPane = parentDocumentGroup.IndexOfChild(parentDocumentPane);
-            parentDocumentGroup.InsertChildAt(indexOfParentPane + 1, new LayoutDocumentPane(layoutElement));
-            layoutElement.IsActive = true;
-            layoutElement.Root.CollectGarbage();
-        }
-        #endregion
-
-        #region NewHorizontalTabGroupCommand
-
-        /// <summary>
-        /// NewHorizontalTabGroupCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty NewHorizontalTabGroupCommandProperty =
-            DependencyProperty.Register("NewHorizontalTabGroupCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((ICommand)null,
-                    new PropertyChangedCallback(OnNewHorizontalTabGroupCommandChanged)));
-
-        /// <summary>
-        /// Gets or sets the NewHorizontalTabGroupCommand property.  This dependency property 
-        /// indicates the new horizontal tab group command.
-        /// </summary>
-        public ICommand NewHorizontalTabGroupCommand
-        {
-            get { return (ICommand)GetValue(NewHorizontalTabGroupCommandProperty); }
-            set { SetValue(NewHorizontalTabGroupCommandProperty, value); }
-        }
+    private bool CanExecuteNewVerticalTabGroupCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+      var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
+      return ( ( parentDocumentGroup == null ||
+          parentDocumentGroup.ChildrenCount == 1 ||
+          parentDocumentGroup.Root.Manager.AllowMixedOrientation ||
+          parentDocumentGroup.Orientation == System.Windows.Controls.Orientation.Horizontal ) &&
+          parentDocumentPane != null &&
+          parentDocumentPane.ChildrenCount > 1 );
+    }
 
-        /// <summary>
-        /// Handles changes to the NewHorizontalTabGroupCommand property.
-        /// </summary>
-        private static void OnNewHorizontalTabGroupCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnNewHorizontalTabGroupCommandChanged(e);
-        }
+    private void ExecuteNewVerticalTabGroupCommand( object parameter )
+    {
+      var layoutElement = LayoutElement;
+      var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+
+      if( parentDocumentGroup == null )
+      {
+        var grandParent = parentDocumentPane.Parent as ILayoutContainer;
+        parentDocumentGroup = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
+        grandParent.ReplaceChild( parentDocumentPane, parentDocumentGroup );
+        parentDocumentGroup.Children.Add( parentDocumentPane );
+      }
+      parentDocumentGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
+      int indexOfParentPane = parentDocumentGroup.IndexOfChild( parentDocumentPane );
+      parentDocumentGroup.InsertChildAt( indexOfParentPane + 1, new LayoutDocumentPane( layoutElement ) );
+      layoutElement.IsActive = true;
+      layoutElement.Root.CollectGarbage();
+    }
+    #endregion
+
+    #region NewHorizontalTabGroupCommand
+
+    /// <summary>
+    /// NewHorizontalTabGroupCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty NewHorizontalTabGroupCommandProperty =
+        DependencyProperty.Register( "NewHorizontalTabGroupCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( ICommand )null,
+                new PropertyChangedCallback( OnNewHorizontalTabGroupCommandChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the NewHorizontalTabGroupCommand property.  This dependency property 
+    /// indicates the new horizontal tab group command.
+    /// </summary>
+    public ICommand NewHorizontalTabGroupCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( NewHorizontalTabGroupCommandProperty );
+      }
+      set
+      {
+        SetValue( NewHorizontalTabGroupCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the NewHorizontalTabGroupCommand property.
-        /// </summary>
-        protected virtual void OnNewHorizontalTabGroupCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Handles changes to the NewHorizontalTabGroupCommand property.
+    /// </summary>
+    private static void OnNewHorizontalTabGroupCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnNewHorizontalTabGroupCommandChanged( e );
+    }
 
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the NewHorizontalTabGroupCommand property.
+    /// </summary>
+    protected virtual void OnNewHorizontalTabGroupCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private bool CanExecuteNewHorizontalTabGroupCommand(object parameter)
-        {
-            if (LayoutElement == null)
-                return false;
-            var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
-            return ((parentDocumentGroup == null ||
-                parentDocumentGroup.ChildrenCount == 1 ||
-                parentDocumentGroup.Root.Manager.AllowMixedOrientation ||
-                parentDocumentGroup.Orientation == System.Windows.Controls.Orientation.Vertical) &&
-                parentDocumentPane != null &&
-                parentDocumentPane.ChildrenCount > 1);
-        }
 
-        private void ExecuteNewHorizontalTabGroupCommand(object parameter)
-        {
-            var layoutElement = LayoutElement;
-            var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+    private bool CanExecuteNewHorizontalTabGroupCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+      var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
+      return ( ( parentDocumentGroup == null ||
+          parentDocumentGroup.ChildrenCount == 1 ||
+          parentDocumentGroup.Root.Manager.AllowMixedOrientation ||
+          parentDocumentGroup.Orientation == System.Windows.Controls.Orientation.Vertical ) &&
+          parentDocumentPane != null &&
+          parentDocumentPane.ChildrenCount > 1 );
+    }
 
-            if (parentDocumentGroup == null)
-            {
-                var grandParent = parentDocumentPane.Parent as ILayoutContainer;
-                parentDocumentGroup = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
-                grandParent.ReplaceChild(parentDocumentPane, parentDocumentGroup);
-                parentDocumentGroup.Children.Add(parentDocumentPane);
-            }
-            parentDocumentGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
-            int indexOfParentPane = parentDocumentGroup.IndexOfChild(parentDocumentPane);
-            parentDocumentGroup.InsertChildAt(indexOfParentPane + 1, new LayoutDocumentPane(layoutElement));
-            layoutElement.IsActive = true;
-            layoutElement.Root.CollectGarbage();
-        }       
-        #endregion
-
-        #region MoveToNextTabGroupCommand
-
-        /// <summary>
-        /// MoveToNextTabGroupCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty MoveToNextTabGroupCommandProperty =
-            DependencyProperty.Register("MoveToNextTabGroupCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((ICommand)null,
-                    new PropertyChangedCallback(OnMoveToNextTabGroupCommandChanged)));
-
-        /// <summary>
-        /// Gets or sets the MoveToNextTabGroupCommand property.  This dependency property 
-        /// indicates move to next tab group command.
-        /// </summary>
-        public ICommand MoveToNextTabGroupCommand
-        {
-            get { return (ICommand)GetValue(MoveToNextTabGroupCommandProperty); }
-            set { SetValue(MoveToNextTabGroupCommandProperty, value); }
-        }
+    private void ExecuteNewHorizontalTabGroupCommand( object parameter )
+    {
+      var layoutElement = LayoutElement;
+      var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+
+      if( parentDocumentGroup == null )
+      {
+        var grandParent = parentDocumentPane.Parent as ILayoutContainer;
+        parentDocumentGroup = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
+        grandParent.ReplaceChild( parentDocumentPane, parentDocumentGroup );
+        parentDocumentGroup.Children.Add( parentDocumentPane );
+      }
+      parentDocumentGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
+      int indexOfParentPane = parentDocumentGroup.IndexOfChild( parentDocumentPane );
+      parentDocumentGroup.InsertChildAt( indexOfParentPane + 1, new LayoutDocumentPane( layoutElement ) );
+      layoutElement.IsActive = true;
+      layoutElement.Root.CollectGarbage();
+    }
+    #endregion
+
+    #region MoveToNextTabGroupCommand
+
+    /// <summary>
+    /// MoveToNextTabGroupCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty MoveToNextTabGroupCommandProperty =
+        DependencyProperty.Register( "MoveToNextTabGroupCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( ICommand )null,
+                new PropertyChangedCallback( OnMoveToNextTabGroupCommandChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the MoveToNextTabGroupCommand property.  This dependency property 
+    /// indicates move to next tab group command.
+    /// </summary>
+    public ICommand MoveToNextTabGroupCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( MoveToNextTabGroupCommandProperty );
+      }
+      set
+      {
+        SetValue( MoveToNextTabGroupCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the MoveToNextTabGroupCommand property.
-        /// </summary>
-        private static void OnMoveToNextTabGroupCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnMoveToNextTabGroupCommandChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the MoveToNextTabGroupCommand property.
+    /// </summary>
+    private static void OnMoveToNextTabGroupCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnMoveToNextTabGroupCommandChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the MoveToNextTabGroupCommand property.
-        /// </summary>
-        protected virtual void OnMoveToNextTabGroupCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the MoveToNextTabGroupCommand property.
+    /// </summary>
+    protected virtual void OnMoveToNextTabGroupCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private bool CanExecuteMoveToNextTabGroupCommand(object parameter)
-        {
-            if (LayoutElement == null)
-                return false;
-
-            var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
-            return (parentDocumentGroup != null &&
-                parentDocumentPane != null &&
-                parentDocumentGroup.ChildrenCount > 1 &&
-                parentDocumentGroup.IndexOfChild(parentDocumentPane) < parentDocumentGroup.ChildrenCount - 1 &&
-                parentDocumentGroup.Children[parentDocumentGroup.IndexOfChild(parentDocumentPane) + 1] is LayoutDocumentPane);
-        }
+    private bool CanExecuteMoveToNextTabGroupCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+
+      var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
+      return ( parentDocumentGroup != null &&
+          parentDocumentPane != null &&
+          parentDocumentGroup.ChildrenCount > 1 &&
+          parentDocumentGroup.IndexOfChild( parentDocumentPane ) < parentDocumentGroup.ChildrenCount - 1 &&
+          parentDocumentGroup.Children[ parentDocumentGroup.IndexOfChild( parentDocumentPane ) + 1 ] is LayoutDocumentPane );
+    }
 
-        private void ExecuteMoveToNextTabGroupCommand(object parameter)
-        {
-            var layoutElement = LayoutElement;
-            var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
-            int indexOfParentPane = parentDocumentGroup.IndexOfChild(parentDocumentPane);
-            var nextDocumentPane = parentDocumentGroup.Children[indexOfParentPane + 1] as LayoutDocumentPane;
-            nextDocumentPane.InsertChildAt(0, layoutElement);
-            layoutElement.IsActive = true;
-            layoutElement.Root.CollectGarbage();
-        }
+    private void ExecuteMoveToNextTabGroupCommand( object parameter )
+    {
+      var layoutElement = LayoutElement;
+      var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+      int indexOfParentPane = parentDocumentGroup.IndexOfChild( parentDocumentPane );
+      var nextDocumentPane = parentDocumentGroup.Children[ indexOfParentPane + 1 ] as LayoutDocumentPane;
+      nextDocumentPane.InsertChildAt( 0, layoutElement );
+      layoutElement.IsActive = true;
+      layoutElement.Root.CollectGarbage();
+    }
 
-        #endregion
+    #endregion
 
-        #region MoveToPreviousTabGroupCommand
+    #region MoveToPreviousTabGroupCommand
 
-        /// <summary>
-        /// MoveToPreviousTabGroupCommand Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty MoveToPreviousTabGroupCommandProperty =
-            DependencyProperty.Register("MoveToPreviousTabGroupCommand", typeof(ICommand), typeof(LayoutItem),
-                new FrameworkPropertyMetadata((ICommand)null,
-                    new PropertyChangedCallback(OnMoveToPreviousTabGroupCommandChanged)));
+    /// <summary>
+    /// MoveToPreviousTabGroupCommand Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty MoveToPreviousTabGroupCommandProperty =
+        DependencyProperty.Register( "MoveToPreviousTabGroupCommand", typeof( ICommand ), typeof( LayoutItem ),
+            new FrameworkPropertyMetadata( ( ICommand )null,
+                new PropertyChangedCallback( OnMoveToPreviousTabGroupCommandChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the MoveToPreviousTabGroupCommand property.  This dependency property 
-        /// indicates move to rpevious tab group command.
-        /// </summary>
-        public ICommand MoveToPreviousTabGroupCommand
-        {
-            get { return (ICommand)GetValue(MoveToPreviousTabGroupCommandProperty); }
-            set { SetValue(MoveToPreviousTabGroupCommandProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the MoveToPreviousTabGroupCommand property.  This dependency property 
+    /// indicates move to rpevious tab group command.
+    /// </summary>
+    public ICommand MoveToPreviousTabGroupCommand
+    {
+      get
+      {
+        return ( ICommand )GetValue( MoveToPreviousTabGroupCommandProperty );
+      }
+      set
+      {
+        SetValue( MoveToPreviousTabGroupCommandProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the MoveToPreviousTabGroupCommand property.
-        /// </summary>
-        private static void OnMoveToPreviousTabGroupCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((LayoutItem)d).OnMoveToPreviousTabGroupCommandChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the MoveToPreviousTabGroupCommand property.
+    /// </summary>
+    private static void OnMoveToPreviousTabGroupCommandChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( LayoutItem )d ).OnMoveToPreviousTabGroupCommandChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the MoveToPreviousTabGroupCommand property.
-        /// </summary>
-        protected virtual void OnMoveToPreviousTabGroupCommandChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the MoveToPreviousTabGroupCommand property.
+    /// </summary>
+    protected virtual void OnMoveToPreviousTabGroupCommandChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        private bool CanExecuteMoveToPreviousTabGroupCommand(object parameter)
-        {
-            if (LayoutElement == null)
-                return false;
-            var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
-            return (parentDocumentGroup != null &&
-                parentDocumentPane != null &&
-                parentDocumentGroup.ChildrenCount > 1 &&
-                parentDocumentGroup.IndexOfChild(parentDocumentPane) > 0 &&
-                parentDocumentGroup.Children[parentDocumentGroup.IndexOfChild(parentDocumentPane) - 1] is LayoutDocumentPane);
-        }
+    private bool CanExecuteMoveToPreviousTabGroupCommand( object parameter )
+    {
+      if( LayoutElement == null )
+        return false;
+      var parentDocumentGroup = LayoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = LayoutElement.Parent as LayoutDocumentPane;
+      return ( parentDocumentGroup != null &&
+          parentDocumentPane != null &&
+          parentDocumentGroup.ChildrenCount > 1 &&
+          parentDocumentGroup.IndexOfChild( parentDocumentPane ) > 0 &&
+          parentDocumentGroup.Children[ parentDocumentGroup.IndexOfChild( parentDocumentPane ) - 1 ] is LayoutDocumentPane );
+    }
 
-        private void ExecuteMoveToPreviousTabGroupCommand(object parameter)
-        {
-            var layoutElement = LayoutElement;
-            var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
-            var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
-            int indexOfParentPane = parentDocumentGroup.IndexOfChild(parentDocumentPane);
-            var nextDocumentPane = parentDocumentGroup.Children[indexOfParentPane - 1] as LayoutDocumentPane;
-            nextDocumentPane.InsertChildAt(0, layoutElement);
-            layoutElement.IsActive = true;
-            layoutElement.Root.CollectGarbage();
-        }
-        #endregion
+    private void ExecuteMoveToPreviousTabGroupCommand( object parameter )
+    {
+      var layoutElement = LayoutElement;
+      var parentDocumentGroup = layoutElement.FindParent<LayoutDocumentPaneGroup>();
+      var parentDocumentPane = layoutElement.Parent as LayoutDocumentPane;
+      int indexOfParentPane = parentDocumentGroup.IndexOfChild( parentDocumentPane );
+      var nextDocumentPane = parentDocumentGroup.Children[ indexOfParentPane - 1 ] as LayoutDocumentPane;
+      nextDocumentPane.InsertChildAt( 0, layoutElement );
+      layoutElement.IsActive = true;
+      layoutElement.Root.CollectGarbage();
+    }
+    #endregion
 
 
 
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Controls/NavigatorWindow.cs b/source/Components/Xceed.Wpf.AvalonDock/Controls/NavigatorWindow.cs
index 2f86eabb..a57160b7 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Controls/NavigatorWindow.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Controls/NavigatorWindow.cs
@@ -14,351 +14,366 @@ This program is provided to you under the terms of the Microsoft Public
 
   ***********************************************************************************/
 
-using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows;
 using Xceed.Wpf.AvalonDock.Layout;
-using System.Windows.Interop;
-using System.Windows.Threading;
 using Xceed.Wpf.AvalonDock.Themes;
 
 namespace Xceed.Wpf.AvalonDock.Controls
 {
-    public class NavigatorWindow : Window
-    {
-        private ResourceDictionary currentThemeResourceDictionary; // = null
+  public class NavigatorWindow : Window
+  {
+    private ResourceDictionary currentThemeResourceDictionary; // = null
 
-        static NavigatorWindow()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(NavigatorWindow), new FrameworkPropertyMetadata(typeof(NavigatorWindow)));
-            ShowActivatedProperty.OverrideMetadata(typeof(NavigatorWindow), new FrameworkPropertyMetadata(false));
-            ShowInTaskbarProperty.OverrideMetadata(typeof(NavigatorWindow), new FrameworkPropertyMetadata(false));
-        }
+    static NavigatorWindow()
+    {
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( NavigatorWindow ), new FrameworkPropertyMetadata( typeof( NavigatorWindow ) ) );
+      ShowActivatedProperty.OverrideMetadata( typeof( NavigatorWindow ), new FrameworkPropertyMetadata( false ) );
+      ShowInTaskbarProperty.OverrideMetadata( typeof( NavigatorWindow ), new FrameworkPropertyMetadata( false ) );
+    }
 
-        DockingManager _manager;
-        internal NavigatorWindow(DockingManager manager)
-        {
-            _manager = manager;
+    DockingManager _manager;
+    internal NavigatorWindow( DockingManager manager )
+    {
+      _manager = manager;
 
-            _internalSetSelectedDocument = true;
-            SetAnchorables(_manager.Layout.Descendents().OfType<LayoutAnchorable>().Where(a => a.IsVisible).Select(d => (LayoutAnchorableItem)_manager.GetLayoutItemFromModel(d)).ToArray());
-            SetDocuments(_manager.Layout.Descendents().OfType<LayoutDocument>().OrderByDescending(d => d.LastActivationTimeStamp.GetValueOrDefault()).Select(d => (LayoutDocumentItem)_manager.GetLayoutItemFromModel(d)).ToArray());
-            _internalSetSelectedDocument = false;
+      _internalSetSelectedDocument = true;
+      SetAnchorables( _manager.Layout.Descendents().OfType<LayoutAnchorable>().Where( a => a.IsVisible ).Select( d => ( LayoutAnchorableItem )_manager.GetLayoutItemFromModel( d ) ).ToArray() );
+      SetDocuments( _manager.Layout.Descendents().OfType<LayoutDocument>().OrderByDescending( d => d.LastActivationTimeStamp.GetValueOrDefault() ).Select( d => ( LayoutDocumentItem )_manager.GetLayoutItemFromModel( d ) ).ToArray() );
+      _internalSetSelectedDocument = false;
 
-            if (Documents.Length > 1)
-                InternalSetSelectedDocument(Documents[1]);
+      if( Documents.Length > 1 )
+        InternalSetSelectedDocument( Documents[ 1 ] );
 
-            this.DataContext = this;
+      this.DataContext = this;
 
-            this.Loaded += new RoutedEventHandler(OnLoaded);
-            this.Unloaded += new RoutedEventHandler(OnUnloaded);
+      this.Loaded += new RoutedEventHandler( OnLoaded );
+      this.Unloaded += new RoutedEventHandler( OnUnloaded );
 
-            UpdateThemeResources();
-        }
+      UpdateThemeResources();
+    }
 
 
-        internal void UpdateThemeResources(Theme oldTheme = null)
+    internal void UpdateThemeResources( Theme oldTheme = null )
+    {
+      if( oldTheme != null )
+      {
+        if( oldTheme is DictionaryTheme )
         {
-            if (oldTheme != null)
-            {
-              if( oldTheme is DictionaryTheme )
-              {
-                if( currentThemeResourceDictionary != null )
-                {
-                  Resources.MergedDictionaries.Remove( currentThemeResourceDictionary );
-                  currentThemeResourceDictionary = null;
-                }
-              }
-              else
-              {
-                var resourceDictionaryToRemove =
-                    Resources.MergedDictionaries.FirstOrDefault( r => r.Source == oldTheme.GetResourceUri() );
-                if( resourceDictionaryToRemove != null )
-                  Resources.MergedDictionaries.Remove(
-                      resourceDictionaryToRemove );
-              }
-            }
-
-            if (_manager.Theme != null)
-            {
-              if( _manager.Theme is DictionaryTheme )
-              {
-                currentThemeResourceDictionary = ( ( DictionaryTheme )_manager.Theme ).ThemeResourceDictionary;
-                Resources.MergedDictionaries.Add( currentThemeResourceDictionary );
-              }
-              else
-              {
-                Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = _manager.Theme.GetResourceUri() });
-              }
-            }
+          if( currentThemeResourceDictionary != null )
+          {
+            Resources.MergedDictionaries.Remove( currentThemeResourceDictionary );
+            currentThemeResourceDictionary = null;
+          }
         }
-
-
-        void OnLoaded(object sender, RoutedEventArgs e)
+        else
         {
-            this.Loaded -= new RoutedEventHandler(OnLoaded);
-
-            this.Focus();
-
-            //this.SetParentToMainWindowOf(_manager);
-            WindowStartupLocation = WindowStartupLocation.CenterOwner;
+          var resourceDictionaryToRemove =
+              Resources.MergedDictionaries.FirstOrDefault( r => r.Source == oldTheme.GetResourceUri() );
+          if( resourceDictionaryToRemove != null )
+            Resources.MergedDictionaries.Remove(
+                resourceDictionaryToRemove );
         }
+      }
 
-        void OnUnloaded(object sender, RoutedEventArgs e)
+      if( _manager.Theme != null )
+      {
+        if( _manager.Theme is DictionaryTheme )
         {
-            this.Unloaded -= new RoutedEventHandler(OnUnloaded);
-
-            //_hwndSrc.RemoveHook(_hwndSrcHook);
-            //_hwndSrc.Dispose();
-            //_hwndSrc = null;
+          currentThemeResourceDictionary = ( ( DictionaryTheme )_manager.Theme ).ThemeResourceDictionary;
+          Resources.MergedDictionaries.Add( currentThemeResourceDictionary );
         }
-
-        //protected virtual IntPtr FilterMessage(
-        //    IntPtr hwnd,
-        //    int msg,
-        //    IntPtr wParam,
-        //    IntPtr lParam,
-        //    ref bool handled
-        //    )
-        //{
-        //    handled = false;
-
-        //    switch (msg)
-        //    {
-        //        case Win32Helper.WM_ACTIVATE:
-        //            if (((int)wParam & 0xFFFF) == Win32Helper.WA_INACTIVE)
-        //            {
-        //                if (lParam == new WindowInteropHelper(this.Owner).Handle)
-        //                {
-        //                    Win32Helper.SetActiveWindow(_hwndSrc.Handle);
-        //                    handled = true;
-        //                }
-
-        //            }
-        //            break;
-        //    }
-
-        //    return IntPtr.Zero;
-        //}
-
-
-        #region Documents
-
-        /// <summary>
-        /// Documents Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey DocumentsPropertyKey
-            = DependencyProperty.RegisterReadOnly("Documents", typeof(IEnumerable<LayoutDocumentItem>), typeof(NavigatorWindow),
-                new FrameworkPropertyMetadata(null));
-
-        public static readonly DependencyProperty DocumentsProperty
-            = DocumentsPropertyKey.DependencyProperty;
-
-        /// <summary>
-        /// Gets the Documents property.  This dependency property 
-        /// indicates the list of documents.
-        /// </summary>
-        public LayoutDocumentItem[] Documents
+        else
         {
-            get { return (LayoutDocumentItem[])GetValue(DocumentsProperty); }
+          Resources.MergedDictionaries.Add( new ResourceDictionary() { Source = _manager.Theme.GetResourceUri() } );
         }
+      }
+    }
 
-        /// <summary>
-        /// Provides a secure method for setting the Documents property.  
-        /// This dependency property indicates the list of documents.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetDocuments(LayoutDocumentItem[] value)
-        {
-            SetValue(DocumentsPropertyKey, value);
-        }
 
-        #endregion
+    void OnLoaded( object sender, RoutedEventArgs e )
+    {
+      this.Loaded -= new RoutedEventHandler( OnLoaded );
 
-        #region Anchorables
+      this.Focus();
 
-        /// <summary>
-        /// Anchorables Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey AnchorablesPropertyKey
-            = DependencyProperty.RegisterReadOnly("Anchorables", typeof(IEnumerable<LayoutAnchorableItem>), typeof(NavigatorWindow),
-                new FrameworkPropertyMetadata((IEnumerable<LayoutAnchorableItem>)null));
+      //this.SetParentToMainWindowOf(_manager);
+      WindowStartupLocation = WindowStartupLocation.CenterOwner;
+    }
 
-        public static readonly DependencyProperty AnchorablesProperty
-            = AnchorablesPropertyKey.DependencyProperty;
+    void OnUnloaded( object sender, RoutedEventArgs e )
+    {
+      this.Unloaded -= new RoutedEventHandler( OnUnloaded );
 
-        /// <summary>
-        /// Gets the Anchorables property.  This dependency property 
-        /// indicates the list of anchorables.
-        /// </summary>
-        public IEnumerable<LayoutAnchorableItem> Anchorables
-        {
-            get { return (IEnumerable<LayoutAnchorableItem>)GetValue(AnchorablesProperty); }
-        }
+      //_hwndSrc.RemoveHook(_hwndSrcHook);
+      //_hwndSrc.Dispose();
+      //_hwndSrc = null;
+    }
 
-        /// <summary>
-        /// Provides a secure method for setting the Anchorables property.  
-        /// This dependency property indicates the list of anchorables.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetAnchorables(IEnumerable<LayoutAnchorableItem> value)
-        {
-            SetValue(AnchorablesPropertyKey, value);
-        }
+    //protected virtual IntPtr FilterMessage(
+    //    IntPtr hwnd,
+    //    int msg,
+    //    IntPtr wParam,
+    //    IntPtr lParam,
+    //    ref bool handled
+    //    )
+    //{
+    //    handled = false;
+
+    //    switch (msg)
+    //    {
+    //        case Win32Helper.WM_ACTIVATE:
+    //            if (((int)wParam & 0xFFFF) == Win32Helper.WA_INACTIVE)
+    //            {
+    //                if (lParam == new WindowInteropHelper(this.Owner).Handle)
+    //                {
+    //                    Win32Helper.SetActiveWindow(_hwndSrc.Handle);
+    //                    handled = true;
+    //                }
+
+    //            }
+    //            break;
+    //    }
+
+    //    return IntPtr.Zero;
+    //}
+
+
+    #region Documents
+
+    /// <summary>
+    /// Documents Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey DocumentsPropertyKey
+        = DependencyProperty.RegisterReadOnly( "Documents", typeof( IEnumerable<LayoutDocumentItem> ), typeof( NavigatorWindow ),
+            new FrameworkPropertyMetadata( null ) );
+
+    public static readonly DependencyProperty DocumentsProperty
+        = DocumentsPropertyKey.DependencyProperty;
+
+    /// <summary>
+    /// Gets the Documents property.  This dependency property 
+    /// indicates the list of documents.
+    /// </summary>
+    public LayoutDocumentItem[] Documents
+    {
+      get
+      {
+        return ( LayoutDocumentItem[] )GetValue( DocumentsProperty );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides a secure method for setting the Documents property.  
+    /// This dependency property indicates the list of documents.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetDocuments( LayoutDocumentItem[] value )
+    {
+      SetValue( DocumentsPropertyKey, value );
+    }
 
-        #region SelectedDocument
+    #endregion
 
-        /// <summary>
-        /// SelectedDocument Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty SelectedDocumentProperty =
-            DependencyProperty.Register("SelectedDocument", typeof(LayoutDocumentItem), typeof(NavigatorWindow),
-                new FrameworkPropertyMetadata((LayoutDocumentItem)null,
-                    new PropertyChangedCallback(OnSelectedDocumentChanged)));
+    #region Anchorables
 
-        /// <summary>
-        /// Gets or sets the SelectedDocument property.  This dependency property 
-        /// indicates the selected document.
-        /// </summary>
-        public LayoutDocumentItem SelectedDocument
-        {
-            get { return (LayoutDocumentItem)GetValue(SelectedDocumentProperty); }
-            set { SetValue(SelectedDocumentProperty, value); }
-        }
+    /// <summary>
+    /// Anchorables Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey AnchorablesPropertyKey
+        = DependencyProperty.RegisterReadOnly( "Anchorables", typeof( IEnumerable<LayoutAnchorableItem> ), typeof( NavigatorWindow ),
+            new FrameworkPropertyMetadata( ( IEnumerable<LayoutAnchorableItem> )null ) );
 
-        /// <summary>
-        /// Handles changes to the SelectedDocument property.
-        /// </summary>
-        private static void OnSelectedDocumentChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((NavigatorWindow)d).OnSelectedDocumentChanged(e);
-        }
+    public static readonly DependencyProperty AnchorablesProperty
+        = AnchorablesPropertyKey.DependencyProperty;
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the SelectedDocument property.
-        /// </summary>
-        protected virtual void OnSelectedDocumentChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (_internalSetSelectedDocument)
-                return;
+    /// <summary>
+    /// Gets the Anchorables property.  This dependency property 
+    /// indicates the list of anchorables.
+    /// </summary>
+    public IEnumerable<LayoutAnchorableItem> Anchorables
+    {
+      get
+      {
+        return ( IEnumerable<LayoutAnchorableItem> )GetValue( AnchorablesProperty );
+      }
+    }
 
-            if (SelectedDocument != null &&
-                SelectedDocument.ActivateCommand.CanExecute(null))
-            {
-                SelectedDocument.ActivateCommand.Execute(null);
-                Hide();
-            }
+    /// <summary>
+    /// Provides a secure method for setting the Anchorables property.  
+    /// This dependency property indicates the list of anchorables.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetAnchorables( IEnumerable<LayoutAnchorableItem> value )
+    {
+      SetValue( AnchorablesPropertyKey, value );
+    }
 
-        }
+    #endregion
 
-        bool _internalSetSelectedDocument = false;
-        void InternalSetSelectedDocument(LayoutDocumentItem documentToSelect)
-        {
-            _internalSetSelectedDocument = true;
-            SelectedDocument = documentToSelect;
-            _internalSetSelectedDocument = false;
-        }
+    #region SelectedDocument
 
-        #endregion
+    /// <summary>
+    /// SelectedDocument Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty SelectedDocumentProperty =
+        DependencyProperty.Register( "SelectedDocument", typeof( LayoutDocumentItem ), typeof( NavigatorWindow ),
+            new FrameworkPropertyMetadata( ( LayoutDocumentItem )null,
+                new PropertyChangedCallback( OnSelectedDocumentChanged ) ) );
 
-        #region SelectedAnchorable
+    /// <summary>
+    /// Gets or sets the SelectedDocument property.  This dependency property 
+    /// indicates the selected document.
+    /// </summary>
+    public LayoutDocumentItem SelectedDocument
+    {
+      get
+      {
+        return ( LayoutDocumentItem )GetValue( SelectedDocumentProperty );
+      }
+      set
+      {
+        SetValue( SelectedDocumentProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// SelectedAnchorable Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty SelectedAnchorableProperty =
-            DependencyProperty.Register("SelectedAnchorable", typeof(LayoutAnchorableItem), typeof(NavigatorWindow),
-                new FrameworkPropertyMetadata((LayoutAnchorableItem)null,
-                    new PropertyChangedCallback(OnSelectedAnchorableChanged)));
+    /// <summary>
+    /// Handles changes to the SelectedDocument property.
+    /// </summary>
+    private static void OnSelectedDocumentChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( NavigatorWindow )d ).OnSelectedDocumentChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the SelectedAnchorable property.  This dependency property 
-        /// indicates the selected anchorable.
-        /// </summary>
-        public LayoutAnchorableItem SelectedAnchorable
-        {
-            get { return (LayoutAnchorableItem)GetValue(SelectedAnchorableProperty); }
-            set { SetValue(SelectedAnchorableProperty, value); }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the SelectedDocument property.
+    /// </summary>
+    protected virtual void OnSelectedDocumentChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( _internalSetSelectedDocument )
+        return;
 
-        /// <summary>
-        /// Handles changes to the SelectedAnchorable property.
-        /// </summary>
-        private static void OnSelectedAnchorableChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((NavigatorWindow)d).OnSelectedAnchorableChanged(e);
-        }
+      if( SelectedDocument != null &&
+          SelectedDocument.ActivateCommand.CanExecute( null ) )
+      {
+        SelectedDocument.ActivateCommand.Execute( null );
+        Hide();
+      }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the SelectedAnchorable property.
-        /// </summary>
-        protected virtual void OnSelectedAnchorableChanged(DependencyPropertyChangedEventArgs e)
-        {
-            var selectedAnchorable = e.NewValue as LayoutAnchorableItem;
-            if (SelectedAnchorable != null &&
-                SelectedAnchorable.ActivateCommand.CanExecute(null))
-            {
-                SelectedAnchorable.ActivateCommand.Execute(null);
-                Close();
-            }
-        }
+    }
 
-        #endregion
+    bool _internalSetSelectedDocument = false;
+    void InternalSetSelectedDocument( LayoutDocumentItem documentToSelect )
+    {
+      _internalSetSelectedDocument = true;
+      SelectedDocument = documentToSelect;
+      _internalSetSelectedDocument = false;
+    }
 
+    #endregion
 
-        internal void SelectNextDocument()
-        {
-            if (SelectedDocument != null)
-            {
-                int docIndex = Documents.IndexOf<LayoutDocumentItem>(SelectedDocument);
-                docIndex++;
-                if (docIndex == Documents.Length)
-                    docIndex = 0;
-                InternalSetSelectedDocument(Documents[docIndex]);
-            }
+    #region SelectedAnchorable
 
-        }
+    /// <summary>
+    /// SelectedAnchorable Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty SelectedAnchorableProperty =
+        DependencyProperty.Register( "SelectedAnchorable", typeof( LayoutAnchorableItem ), typeof( NavigatorWindow ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorableItem )null,
+                new PropertyChangedCallback( OnSelectedAnchorableChanged ) ) );
 
-        protected override void OnKeyDown(System.Windows.Input.KeyEventArgs e)
-        {
-            base.OnKeyDown(e);
-        }
+    /// <summary>
+    /// Gets or sets the SelectedAnchorable property.  This dependency property 
+    /// indicates the selected anchorable.
+    /// </summary>
+    public LayoutAnchorableItem SelectedAnchorable
+    {
+      get
+      {
+        return ( LayoutAnchorableItem )GetValue( SelectedAnchorableProperty );
+      }
+      set
+      {
+        SetValue( SelectedAnchorableProperty, value );
+      }
+    }
 
-        protected override void OnPreviewKeyDown(System.Windows.Input.KeyEventArgs e)
-        {
-            if (e.Key == System.Windows.Input.Key.Tab)
-            {
-                SelectNextDocument();
-                e.Handled = true;
-            }
+    /// <summary>
+    /// Handles changes to the SelectedAnchorable property.
+    /// </summary>
+    private static void OnSelectedAnchorableChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( NavigatorWindow )d ).OnSelectedAnchorableChanged( e );
+    }
 
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the SelectedAnchorable property.
+    /// </summary>
+    protected virtual void OnSelectedAnchorableChanged( DependencyPropertyChangedEventArgs e )
+    {
+      var selectedAnchorable = e.NewValue as LayoutAnchorableItem;
+      if( SelectedAnchorable != null &&
+          SelectedAnchorable.ActivateCommand.CanExecute( null ) )
+      {
+        SelectedAnchorable.ActivateCommand.Execute( null );
+        Close();
+      }
+    }
 
-            base.OnPreviewKeyDown(e);
-        }
+    #endregion
 
-        protected override void OnPreviewKeyUp(System.Windows.Input.KeyEventArgs e)
-        {
-            if (e.Key != System.Windows.Input.Key.Tab)
-            {
-                if (SelectedAnchorable != null &&
-                    SelectedAnchorable.ActivateCommand.CanExecute(null))
-                    SelectedAnchorable.ActivateCommand.Execute(null);
-
-                if (SelectedAnchorable == null &&
-                    SelectedDocument != null &&
-                    SelectedDocument.ActivateCommand.CanExecute(null))
-                    SelectedDocument.ActivateCommand.Execute(null);
-                Close();
-                e.Handled = true;
-            }       
-
-
-            base.OnPreviewKeyUp(e);
-        }
 
+    internal void SelectNextDocument()
+    {
+      if( SelectedDocument != null )
+      {
+        int docIndex = Documents.IndexOf<LayoutDocumentItem>( SelectedDocument );
+        docIndex++;
+        if( docIndex == Documents.Length )
+          docIndex = 0;
+        InternalSetSelectedDocument( Documents[ docIndex ] );
+      }
+
+    }
+
+    protected override void OnKeyDown( System.Windows.Input.KeyEventArgs e )
+    {
+      base.OnKeyDown( e );
     }
+
+    protected override void OnPreviewKeyDown( System.Windows.Input.KeyEventArgs e )
+    {
+      if( e.Key == System.Windows.Input.Key.Tab )
+      {
+        SelectNextDocument();
+        e.Handled = true;
+      }
+
+
+      base.OnPreviewKeyDown( e );
+    }
+
+    protected override void OnPreviewKeyUp( System.Windows.Input.KeyEventArgs e )
+    {
+      if( e.Key != System.Windows.Input.Key.Tab )
+      {
+        if( SelectedAnchorable != null &&
+            SelectedAnchorable.ActivateCommand.CanExecute( null ) )
+          SelectedAnchorable.ActivateCommand.Execute( null );
+
+        if( SelectedAnchorable == null &&
+            SelectedDocument != null &&
+            SelectedDocument.ActivateCommand.CanExecute( null ) )
+          SelectedDocument.ActivateCommand.Execute( null );
+        Close();
+        e.Handled = true;
+      }
+
+
+      base.OnPreviewKeyUp( e );
+    }
+
+
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Converters/AnchorableContextMenuHideVisibilityConverter.cs b/source/Components/Xceed.Wpf.AvalonDock/Converters/AnchorableContextMenuHideVisibilityConverter.cs
new file mode 100644
index 00000000..7c881eba
--- /dev/null
+++ b/source/Components/Xceed.Wpf.AvalonDock/Converters/AnchorableContextMenuHideVisibilityConverter.cs
@@ -0,0 +1,49 @@
+/*************************************************************************************
+
+   Extended WPF Toolkit
+
+   Copyright (C) 2007-2013 Xceed Software Inc.
+
+   This program is provided to you under the terms of the Microsoft Public
+   License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license 
+
+   For more features, controls, and fast professional support,
+   pick up the Plus Edition at http://xceed.com/wpf_toolkit
+
+   Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
+
+  ***********************************************************************************/
+
+using System;
+using System.Globalization;
+using System.Linq;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Xceed.Wpf.AvalonDock.Converters
+{
+  public class AnchorableContextMenuHideVisibilityConverter : IMultiValueConverter
+  {
+    public object Convert( object[] values, Type targetType, object parameter, CultureInfo culture )
+    {
+      if( ( values.Count() == 2 )
+        && ( values[ 0 ] != DependencyProperty.UnsetValue )
+        && ( values[ 1 ] != DependencyProperty.UnsetValue ) 
+        && ( values[ 1 ] is bool ))
+      {
+        var canClose = ( bool )values[ 1 ];
+
+        return canClose ? Visibility.Collapsed : values[ 0 ];
+      }
+      else
+      {
+        return values[ 0 ];
+      }
+    }
+
+    public object[] ConvertBack( object value, Type[] targetTypes, object parameter, CultureInfo culture )
+    {
+      throw new NotImplementedException();
+    }
+  }
+}
diff --git a/source/Components/Xceed.Wpf.AvalonDock/DockingManager.cs b/source/Components/Xceed.Wpf.AvalonDock/DockingManager.cs
index 4958196e..a61b8d19 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/DockingManager.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/DockingManager.cs
@@ -17,14 +17,11 @@ This program is provided to you under the terms of the Microsoft Public
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows.Controls;
 using System.Windows;
 using System.Windows.Markup;
 using System.ComponentModel;
 using System.Windows.Interop;
-using System.Diagnostics;
-
 using Xceed.Wpf.AvalonDock.Layout;
 using Xceed.Wpf.AvalonDock.Controls;
 using System.Windows.Input;
@@ -32,3225 +29,3479 @@ This program is provided to you under the terms of the Microsoft Public
 using System.Collections.Specialized;
 using System.Windows.Data;
 using System.Windows.Threading;
-using Xceed.Wpf.AvalonDock.Commands;
 using Xceed.Wpf.AvalonDock.Themes;
 
 namespace Xceed.Wpf.AvalonDock
 {
-    [ContentProperty("Layout")]
-    [TemplatePart(Name="PART_AutoHideArea")]
-    public class DockingManager : Control, IOverlayWindowHost//, ILogicalChildrenContainer
-    {
-        private ResourceDictionary currentThemeResourceDictionary; // = null
+  [ContentProperty( "Layout" )]
+  [TemplatePart( Name = "PART_AutoHideArea" )]
+  public class DockingManager : Control, IOverlayWindowHost//, ILogicalChildrenContainer
+  {
+    private ResourceDictionary currentThemeResourceDictionary; // = null
 
-        static DockingManager()
-        {
-            DefaultStyleKeyProperty.OverrideMetadata(typeof(DockingManager), new FrameworkPropertyMetadata(typeof(DockingManager)));
-            FocusableProperty.OverrideMetadata(typeof(DockingManager), new FrameworkPropertyMetadata(false));
-            HwndSource.DefaultAcquireHwndFocusInMenuMode = false;
-        }
+    static DockingManager()
+    {
+      DefaultStyleKeyProperty.OverrideMetadata( typeof( DockingManager ), new FrameworkPropertyMetadata( typeof( DockingManager ) ) );
+      FocusableProperty.OverrideMetadata( typeof( DockingManager ), new FrameworkPropertyMetadata( false ) );
+      HwndSource.DefaultAcquireHwndFocusInMenuMode = false;
+    }
 
 
-        public DockingManager()
-        {
+    public DockingManager()
+    {
 #if !VS2008
-          Layout = new LayoutRoot() { RootPanel = new LayoutPanel(new LayoutDocumentPaneGroup(new LayoutDocumentPane())) };
+      Layout = new LayoutRoot() { RootPanel = new LayoutPanel( new LayoutDocumentPaneGroup( new LayoutDocumentPane() ) ) };
 #else
           this.SetCurrentValue( DockingManager.LayoutProperty, new LayoutRoot() { RootPanel = new LayoutPanel(new LayoutDocumentPaneGroup(new LayoutDocumentPane())) } );
 #endif
-          this.Loaded += new RoutedEventHandler(DockingManager_Loaded);
-          this.Unloaded += new RoutedEventHandler(DockingManager_Unloaded);
-        }
-
-        #region Layout
-
-        /// <summary>
-        /// Layout Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutProperty =
-            DependencyProperty.Register("Layout", typeof(LayoutRoot), typeof(DockingManager),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnLayoutChanged),
-                    new CoerceValueCallback(CoerceLayoutValue)));
-
-        /// <summary>
-        /// Gets or sets the Layout property.  This dependency property 
-        /// indicates layout tree.
-        /// </summary>
-        public LayoutRoot Layout
-        {
-            get { return (LayoutRoot)GetValue(LayoutProperty); }
-            set { SetValue(LayoutProperty, value); }
-        }
-
-        /// <summary>
-        /// Handles changes to the Layout property.
-        /// </summary>
-        private static void OnLayoutChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLayoutChanged(e.OldValue as LayoutRoot, e.NewValue as LayoutRoot);
-        }
-
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the <see cref="DockingManager.Layout"/> property.
-        /// </summary>
-        protected virtual void OnLayoutChanged(LayoutRoot oldLayout, LayoutRoot newLayout)
-        {
-            if (oldLayout != null)
-            {
-                oldLayout.PropertyChanged -= new PropertyChangedEventHandler(OnLayoutRootPropertyChanged);
-                oldLayout.Updated -= new EventHandler(OnLayoutRootUpdated);
-            }
-
-            foreach (var fwc in _fwList.ToArray())
-            {
-                fwc.KeepContentVisibleOnClose = true;
-                fwc.InternalClose();
-            }
-
-            _fwList.Clear();
-
-            DetachDocumentsSource(oldLayout, DocumentsSource);
-            DetachAnchorablesSource(oldLayout, AnchorablesSource);
-
-            if (oldLayout != null &&
-                oldLayout.Manager == this)
-                oldLayout.Manager = null;
-
-            ClearLogicalChildrenList();
-            DetachLayoutItems();
+      this.Loaded += new RoutedEventHandler( DockingManager_Loaded );
+      this.Unloaded += new RoutedEventHandler( DockingManager_Unloaded );
+    }
 
-            Layout.Manager = this;
+    #region Layout
+
+    /// <summary>
+    /// Layout Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutProperty =
+        DependencyProperty.Register( "Layout", typeof( LayoutRoot ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnLayoutChanged ),
+                new CoerceValueCallback( CoerceLayoutValue ) ) );
+
+    /// <summary>
+    /// Gets or sets the Layout property.  This dependency property 
+    /// indicates layout tree.
+    /// </summary>
+    public LayoutRoot Layout
+    {
+      get
+      {
+        return ( LayoutRoot )GetValue( LayoutProperty );
+      }
+      set
+      {
+        SetValue( LayoutProperty, value );
+      }
+    }
 
-            AttachLayoutItems();
-            AttachDocumentsSource(newLayout, DocumentsSource);
-            AttachAnchorablesSource(newLayout, AnchorablesSource);
+    /// <summary>
+    /// Handles changes to the Layout property.
+    /// </summary>
+    private static void OnLayoutChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutChanged( e.OldValue as LayoutRoot, e.NewValue as LayoutRoot );
+    }
 
-            if (IsLoaded)
-            {
-                LayoutRootPanel = CreateUIElementForModel(Layout.RootPanel) as LayoutPanelControl;
-                LeftSidePanel = CreateUIElementForModel(Layout.LeftSide) as LayoutAnchorSideControl;
-                TopSidePanel = CreateUIElementForModel(Layout.TopSide) as LayoutAnchorSideControl;
-                RightSidePanel = CreateUIElementForModel(Layout.RightSide) as LayoutAnchorSideControl;
-                BottomSidePanel = CreateUIElementForModel(Layout.BottomSide) as LayoutAnchorSideControl;
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the <see cref="DockingManager.Layout"/> property.
+    /// </summary>
+    protected virtual void OnLayoutChanged( LayoutRoot oldLayout, LayoutRoot newLayout )
+    {
+      if( oldLayout != null )
+      {
+        oldLayout.PropertyChanged -= new PropertyChangedEventHandler( OnLayoutRootPropertyChanged );
+        oldLayout.Updated -= new EventHandler( OnLayoutRootUpdated );
+      }
 
-                foreach (var fw in Layout.FloatingWindows.ToArray())
-                {
-                    if (fw.IsValid)
-                       _fwList.Add(CreateUIElementForModel(fw) as LayoutFloatingWindowControl);
-                }
+      foreach( var fwc in _fwList.ToArray() )
+      {
+        fwc.KeepContentVisibleOnClose = true;
+        fwc.InternalClose();
+      }
 
-                foreach (var fw in _fwList)
-                {
-                    //fw.Owner = Window.GetWindow(this);
-                    //fw.SetParentToMainWindowOf(this);
-                }
-            }
+      _fwList.Clear();
 
+      DetachDocumentsSource( oldLayout, DocumentsSource );
+      DetachAnchorablesSource( oldLayout, AnchorablesSource );
 
-            if (newLayout != null)
-            {
-                newLayout.PropertyChanged += new PropertyChangedEventHandler(OnLayoutRootPropertyChanged);
-                newLayout.Updated += new EventHandler(OnLayoutRootUpdated);
-            }
+      if( oldLayout != null &&
+          oldLayout.Manager == this )
+        oldLayout.Manager = null;
 
-            if (LayoutChanged != null)
-                LayoutChanged(this, EventArgs.Empty);
+      ClearLogicalChildrenList();
+      DetachLayoutItems();
 
-            //if (Layout != null)
-            //    Layout.CollectGarbage();
+      Layout.Manager = this;
 
-            CommandManager.InvalidateRequerySuggested();
-        }
+      AttachLayoutItems();
+      AttachDocumentsSource( newLayout, DocumentsSource );
+      AttachAnchorablesSource( newLayout, AnchorablesSource );
 
-      //  DispatcherOperation _setFocusAsyncOperation = null;
+      if( IsLoaded )
+      {
+        LayoutRootPanel = CreateUIElementForModel( Layout.RootPanel ) as LayoutPanelControl;
+        LeftSidePanel = CreateUIElementForModel( Layout.LeftSide ) as LayoutAnchorSideControl;
+        TopSidePanel = CreateUIElementForModel( Layout.TopSide ) as LayoutAnchorSideControl;
+        RightSidePanel = CreateUIElementForModel( Layout.RightSide ) as LayoutAnchorSideControl;
+        BottomSidePanel = CreateUIElementForModel( Layout.BottomSide ) as LayoutAnchorSideControl;
 
-        void OnLayoutRootPropertyChanged(object sender, PropertyChangedEventArgs e)
+        foreach( var fw in Layout.FloatingWindows.ToArray() )
         {
-            if (e.PropertyName == "RootPanel")
-            {
-                if (IsInitialized)
-                {
-                    var layoutRootPanel = CreateUIElementForModel(Layout.RootPanel) as LayoutPanelControl;
-                    LayoutRootPanel = layoutRootPanel;
-                }
-            }
-            else if (e.PropertyName == "ActiveContent")
-            {
-                if (Layout.ActiveContent != null)
-                {
-                    //Debug.WriteLine(new StackTrace().ToString());
-
-                    //set focus on active element only after a layout pass is completed
-                    //it's possible that it is not yet visible in the visual tree
-                    //if (_setFocusAsyncOperation == null)
-                    //{
-                    //    _setFocusAsyncOperation = Dispatcher.BeginInvoke(new Action(() =>
-                           // {
-                                if (Layout.ActiveContent != null)
-                                    FocusElementManager.SetFocusOnLastElement(Layout.ActiveContent);
-                                //_setFocusAsyncOperation = null;
-                          //  } ), DispatcherPriority.Input );
-                    //}
-                }
-
-            //if (!_insideInternalSetActiveContent)
-            //    ActiveContent = Layout.ActiveContent != null ?
-            //        Layout.ActiveContent.Content : null;
-            if( !_insideInternalSetActiveContent && (Layout.ActiveContent != null) )
-            {
-              this.ActiveContent = Layout.ActiveContent.Content;
-            }
-          }
+          if( fw.IsValid )
+            _fwList.Add( CreateUIElementForModel( fw ) as LayoutFloatingWindowControl );
         }
 
-        void OnLayoutRootUpdated(object sender, EventArgs e)
+        foreach( var fw in _fwList )
         {
-            CommandManager.InvalidateRequerySuggested();
+          //fw.Owner = Window.GetWindow(this);
+          //fw.SetParentToMainWindowOf(this);
         }
+      }
 
 
-        /// <summary>
-        /// Event fired when <see cref="DockingManager.Layout"/> property changes
-        /// </summary>
-        public event EventHandler LayoutChanged;
-
-        /// <summary>
-        /// Coerces the <see cref="DockingManager.Layout"/> value.
-        /// </summary>
-        private static object CoerceLayoutValue(DependencyObject d, object value)
-        {
-            if (value == null)
-                return new LayoutRoot() { RootPanel = new LayoutPanel(new LayoutDocumentPaneGroup(new LayoutDocumentPane())) };
-
-            ((DockingManager)d).OnLayoutChanging(value as LayoutRoot);
-
-            return value;
-        }
-
-        /// <summary>
-        /// Event fired when <see cref="DockingManager.Layout"/> property is about to be changed
-        /// </summary>
-        public event EventHandler LayoutChanging;
+      if( newLayout != null )
+      {
+        newLayout.PropertyChanged += new PropertyChangedEventHandler( OnLayoutRootPropertyChanged );
+        newLayout.Updated += new EventHandler( OnLayoutRootUpdated );
+      }
 
-        void OnLayoutChanging(LayoutRoot newLayout)
-        {
-            if (LayoutChanging != null)
-                LayoutChanging(this, EventArgs.Empty);
-        }
+      if( LayoutChanged != null )
+        LayoutChanged( this, EventArgs.Empty );
 
+      //if (Layout != null)
+      //    Layout.CollectGarbage();
 
-        #region LayoutUpdateStrategy
+      CommandManager.InvalidateRequerySuggested();
+    }
 
-        /// <summary>
-        /// LayoutUpdateStrategy Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutUpdateStrategyProperty =
-            DependencyProperty.Register("LayoutUpdateStrategy", typeof(ILayoutUpdateStrategy), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ILayoutUpdateStrategy)null));
+    //  DispatcherOperation _setFocusAsyncOperation = null;
 
-        /// <summary>
-        /// Gets or sets the LayoutUpdateStrategy property.  This dependency property 
-        /// indicates the strategy class to call when AvalonDock needs to positionate a LayoutAnchorable inside an existing layout.
-        /// </summary>
-        /// <remarks>Sometimes it's impossible to automatically insert an anchorable in the layout without specifing the target parent pane.
-        /// Set this property to an object that will be asked to insert the anchorable to the desidered position.</remarks>
-        public ILayoutUpdateStrategy LayoutUpdateStrategy
+    void OnLayoutRootPropertyChanged( object sender, PropertyChangedEventArgs e )
+    {
+      if( e.PropertyName == "RootPanel" )
+      {
+        if( IsInitialized )
         {
-            get { return (ILayoutUpdateStrategy)GetValue(LayoutUpdateStrategyProperty); }
-            set { SetValue(LayoutUpdateStrategyProperty, value); }
+          var layoutRootPanel = CreateUIElementForModel( Layout.RootPanel ) as LayoutPanelControl;
+          LayoutRootPanel = layoutRootPanel;
         }
-
-        #endregion
-
-
-
-        #endregion
-
-        public override void OnApplyTemplate()
+      }
+      else if( e.PropertyName == "ActiveContent" )
+      {
+        if( Layout.ActiveContent != null )
         {
-            base.OnApplyTemplate();
+          //Debug.WriteLine(new StackTrace().ToString());
 
-          //  SetupAutoHideWindow();
+          //set focus on active element only after a layout pass is completed
+          //it's possible that it is not yet visible in the visual tree
+          //if (_setFocusAsyncOperation == null)
+          //{
+          //    _setFocusAsyncOperation = Dispatcher.BeginInvoke(new Action(() =>
+          // {
+          if( Layout.ActiveContent != null )
+            FocusElementManager.SetFocusOnLastElement( Layout.ActiveContent );
+          //_setFocusAsyncOperation = null;
+          //  } ), DispatcherPriority.Input );
+          //}
         }
 
-        protected override void OnInitialized( EventArgs e )
+        //if (!_insideInternalSetActiveContent)
+        //    ActiveContent = Layout.ActiveContent != null ?
+        //        Layout.ActiveContent.Content : null;
+        if( !_insideInternalSetActiveContent && ( Layout.ActiveContent != null ) )
         {
-            base.OnInitialized(e);
+          this.ActiveContent = Layout.ActiveContent.Content;
         }
+      }
+    }
 
-        void DockingManager_Loaded(object sender, RoutedEventArgs e)
-        {
-            if (!DesignerProperties.GetIsInDesignMode(this))
-            {
-                if( Layout.Manager == this )
-                {
-                  LayoutRootPanel = CreateUIElementForModel( Layout.RootPanel ) as LayoutPanelControl;
-                  LeftSidePanel = CreateUIElementForModel( Layout.LeftSide ) as LayoutAnchorSideControl;
-                  TopSidePanel = CreateUIElementForModel( Layout.TopSide ) as LayoutAnchorSideControl;
-                  RightSidePanel = CreateUIElementForModel( Layout.RightSide ) as LayoutAnchorSideControl;
-                  BottomSidePanel = CreateUIElementForModel( Layout.BottomSide ) as LayoutAnchorSideControl;
-                }
-
-                SetupAutoHideWindow();
+    void OnLayoutRootUpdated( object sender, EventArgs e )
+    {
+      CommandManager.InvalidateRequerySuggested();
+    }
 
-                //load windows not already loaded!
-                foreach (var fw in Layout.FloatingWindows.Where(fw => !_fwList.Any(fwc => fwc.Model == fw)))
-                    _fwList.Add(CreateUIElementForModel(fw) as LayoutFloatingWindowControl);
 
-                //create the overlaywindow if it's possible
-                if (IsVisible)
-                    CreateOverlayWindow();
-                FocusElementManager.SetupFocusManagement(this);
-            }
-        }
+    /// <summary>
+    /// Event fired when <see cref="DockingManager.Layout"/> property changes
+    /// </summary>
+    public event EventHandler LayoutChanged;
 
-        void DockingManager_Unloaded(object sender, RoutedEventArgs e)
-        {
+    /// <summary>
+    /// Coerces the <see cref="DockingManager.Layout"/> value.
+    /// </summary>
+    private static object CoerceLayoutValue( DependencyObject d, object value )
+    {
+      if( value == null )
+        return new LayoutRoot() { RootPanel = new LayoutPanel( new LayoutDocumentPaneGroup( new LayoutDocumentPane() ) ) };
 
-            if (!DesignerProperties.GetIsInDesignMode(this))
-            {
-              if( _autoHideWindowManager != null )
-              {
-                _autoHideWindowManager.HideAutoWindow();
-              }
+      ( ( DockingManager )d ).OnLayoutChanging( value as LayoutRoot );
 
-              if( AutoHideWindow != null )
-                AutoHideWindow.Dispose();
+      return value;
+    }
 
-              foreach (var fw in _fwList.ToArray())
-              {
-                  //fw.Owner = null;
-                  fw.SetParentWindowToNull();
-                  fw.KeepContentVisibleOnClose = true;
-                  fw.Close();
-              }
+    /// <summary>
+    /// Event fired when <see cref="DockingManager.Layout"/> property is about to be changed
+    /// </summary>
+    public event EventHandler LayoutChanging;
 
-              DestroyOverlayWindow();
-              FocusElementManager.FinalizeFocusManagement(this);
-            }
-        }
+    void OnLayoutChanging( LayoutRoot newLayout )
+    {
+      if( LayoutChanging != null )
+        LayoutChanging( this, EventArgs.Empty );
+    }
 
-        internal UIElement CreateUIElementForModel(ILayoutElement model)
-        {
-            // DEBUG XXX
-            if (model == Layout.LeftSide)
-            {
-                Console.WriteLine("XXX DEBUG XXX");
-            }
 
-            if (model is LayoutPanel)
-                return new LayoutPanelControl(model as LayoutPanel);
-            if (model is LayoutAnchorablePaneGroup)
-                return new LayoutAnchorablePaneGroupControl(model as LayoutAnchorablePaneGroup);
-            if (model is LayoutDocumentPaneGroup)
-                return new LayoutDocumentPaneGroupControl(model as LayoutDocumentPaneGroup);
+    #region LayoutUpdateStrategy
 
-            if (model is LayoutAnchorSide)
-            {
-                var templateModelView = new LayoutAnchorSideControl(model as LayoutAnchorSide);
-                templateModelView.SetBinding(LayoutAnchorSideControl.TemplateProperty, new Binding("AnchorSideTemplate") { Source = this });
-                return templateModelView;
-            }
-            if (model is LayoutAnchorGroup)
-            {
-                var templateModelView = new LayoutAnchorGroupControl(model as LayoutAnchorGroup);
-                templateModelView.SetBinding(LayoutAnchorGroupControl.TemplateProperty, new Binding("AnchorGroupTemplate") { Source = this });
-                return templateModelView;
-            }
+    /// <summary>
+    /// LayoutUpdateStrategy Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutUpdateStrategyProperty =
+        DependencyProperty.Register( "LayoutUpdateStrategy", typeof( ILayoutUpdateStrategy ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ILayoutUpdateStrategy )null ) );
 
-            if (model is LayoutDocumentPane)
-            {
-                var templateModelView = new LayoutDocumentPaneControl(model as LayoutDocumentPane);
-                templateModelView.SetBinding(LayoutDocumentPaneControl.StyleProperty, new Binding("DocumentPaneControlStyle") { Source = this });
-                return templateModelView;
-            }
-            if (model is LayoutAnchorablePane)
-            {
-                var templateModelView = new LayoutAnchorablePaneControl(model as LayoutAnchorablePane);
-                templateModelView.SetBinding(LayoutAnchorablePaneControl.StyleProperty, new Binding("AnchorablePaneControlStyle") { Source = this });
-                return templateModelView;
-            }
+    /// <summary>
+    /// Gets or sets the LayoutUpdateStrategy property.  This dependency property 
+    /// indicates the strategy class to call when AvalonDock needs to positionate a LayoutAnchorable inside an existing layout.
+    /// </summary>
+    /// <remarks>Sometimes it's impossible to automatically insert an anchorable in the layout without specifing the target parent pane.
+    /// Set this property to an object that will be asked to insert the anchorable to the desidered position.</remarks>
+    public ILayoutUpdateStrategy LayoutUpdateStrategy
+    {
+      get
+      {
+        return ( ILayoutUpdateStrategy )GetValue( LayoutUpdateStrategyProperty );
+      }
+      set
+      {
+        SetValue( LayoutUpdateStrategyProperty, value );
+      }
+    }
 
-            if (model is LayoutAnchorableFloatingWindow)
-            {
-                if (DesignerProperties.GetIsInDesignMode(this))
-                    return null;
-                var modelFW = model as LayoutAnchorableFloatingWindow;
-                var newFW = new LayoutAnchorableFloatingWindowControl(modelFW)
-                {
-                    //Owner = Window.GetWindow(this) 
-                };
-                newFW.SetParentToMainWindowOf(this);
+    #endregion
 
-                var paneForExtensions = modelFW.RootPanel.Children.OfType<LayoutAnchorablePane>().FirstOrDefault();
-                if (paneForExtensions != null)
-                {
-                    //ensure that floating window position is inside current (or nearest) monitor
-                    paneForExtensions.KeepInsideNearestMonitor();
 
-                    newFW.Left = paneForExtensions.FloatingLeft;
-                    newFW.Top = paneForExtensions.FloatingTop;
-                    newFW.Width = paneForExtensions.FloatingWidth;
-                    newFW.Height = paneForExtensions.FloatingHeight;
-                }
 
-                newFW.ShowInTaskbar = false;
-                newFW.Show();
-                // Do not set the WindowState before showing or it will be lost
-                if( paneForExtensions != null && paneForExtensions.IsMaximized )
-                {
-                  newFW.WindowState = WindowState.Maximized;
-                }
-                return newFW;
-            }
+    #endregion
 
-            if (model is LayoutDocumentFloatingWindow)
-            {
-                if (DesignerProperties.GetIsInDesignMode(this))
-                    return null;
-                var modelFW = model as LayoutDocumentFloatingWindow;
-                var newFW = new LayoutDocumentFloatingWindowControl(modelFW)
-                {
-                    //Owner = Window.GetWindow(this) 
-                };
-                newFW.SetParentToMainWindowOf(this);
+    public override void OnApplyTemplate()
+    {
+      base.OnApplyTemplate();
 
-                var paneForExtensions = modelFW.RootDocument;
-                if (paneForExtensions != null)
-                {
-                    //ensure that floating window position is inside current (or nearest) monitor
-                    paneForExtensions.KeepInsideNearestMonitor();
 
-                    newFW.Left = paneForExtensions.FloatingLeft;
-                    newFW.Top = paneForExtensions.FloatingTop;
-                    newFW.Width = paneForExtensions.FloatingWidth;
-                    newFW.Height = paneForExtensions.FloatingHeight;
-                }
+      _autohideArea = GetTemplateChild( "PART_AutoHideArea" ) as FrameworkElement;
+    }
 
-                newFW.ShowInTaskbar = false;
-                newFW.Show();
-                // Do not set the WindowState before showing or it will be lost
-                if( paneForExtensions != null && paneForExtensions.IsMaximized )
-                {
-                  newFW.WindowState = WindowState.Maximized;
-                }
-                return newFW;
-            }
+    protected override void OnInitialized( EventArgs e )
+    {
+      base.OnInitialized( e );
+    }
 
-            if (model is LayoutDocument)
-            {
-                var templateModelView = new LayoutDocumentControl() { Model = model as LayoutDocument };
-                return templateModelView;
-            }
 
-            return null;
+    void DockingManager_Loaded( object sender, RoutedEventArgs e )
+    {
+      if( !DesignerProperties.GetIsInDesignMode( this ) )
+      {
+        if( Layout.Manager == this )
+        {
+          LayoutRootPanel = CreateUIElementForModel( Layout.RootPanel ) as LayoutPanelControl;
+          LeftSidePanel = CreateUIElementForModel( Layout.LeftSide ) as LayoutAnchorSideControl;
+          TopSidePanel = CreateUIElementForModel( Layout.TopSide ) as LayoutAnchorSideControl;
+          RightSidePanel = CreateUIElementForModel( Layout.RightSide ) as LayoutAnchorSideControl;
+          BottomSidePanel = CreateUIElementForModel( Layout.BottomSide ) as LayoutAnchorSideControl;
         }
 
+        SetupAutoHideWindow();
 
+        //load windows not already loaded!
+        foreach( var fw in Layout.FloatingWindows.Where( fw => !_fwList.Any( fwc => fwc.Model == fw ) ) )
+          _fwList.Add( CreateUIElementForModel( fw ) as LayoutFloatingWindowControl );
 
-        #region DocumentPaneTemplate
+        //create the overlaywindow if it's possible
+        if( IsVisible )
+          CreateOverlayWindow();
+        FocusElementManager.SetupFocusManagement( this );
+      }
+    }
 
-        /// <summary>
-        /// DocumentPaneTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentPaneTemplateProperty =
-            DependencyProperty.Register("DocumentPaneTemplate", typeof(ControlTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ControlTemplate)null,
-                    new PropertyChangedCallback(OnDocumentPaneTemplateChanged)));
+    void DockingManager_Unloaded( object sender, RoutedEventArgs e )
+    {
 
-        /// <summary>
-        /// Gets or sets the DocumentPaneDataTemplate property.  This dependency property 
-        /// indicates .
-        /// </summary>
-        public ControlTemplate DocumentPaneTemplate
+      if( !DesignerProperties.GetIsInDesignMode( this ) )
+      {
+        if( _autoHideWindowManager != null )
         {
-            get { return (ControlTemplate)GetValue(DocumentPaneTemplateProperty); }
-            set { SetValue(DocumentPaneTemplateProperty, value); }
+          _autoHideWindowManager.HideAutoWindow();
         }
 
-        /// <summary>
-        /// Handles changes to the DocumentPaneTemplate property.
-        /// </summary>
-        private static void OnDocumentPaneTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentPaneTemplateChanged(e);
-        }
+        if( AutoHideWindow != null )
+          AutoHideWindow.Dispose();
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentPaneTemplate property.
-        /// </summary>
-        protected virtual void OnDocumentPaneTemplateChanged(DependencyPropertyChangedEventArgs e)
+        foreach( var fw in _fwList.ToArray() )
         {
+          //fw.Owner = null;
+          fw.SetParentWindowToNull();
+          fw.KeepContentVisibleOnClose = true;
+          fw.Close();
         }
 
-        #endregion
+        DestroyOverlayWindow();
+        FocusElementManager.FinalizeFocusManagement( this );
+      }
+    }
 
-        #region AnchorablePaneTemplate
+    internal UIElement CreateUIElementForModel( ILayoutElement model )
+    {
+      if( model is LayoutPanel )
+        return new LayoutPanelControl( model as LayoutPanel );
+      if( model is LayoutAnchorablePaneGroup )
+        return new LayoutAnchorablePaneGroupControl( model as LayoutAnchorablePaneGroup );
+      if( model is LayoutDocumentPaneGroup )
+        return new LayoutDocumentPaneGroupControl( model as LayoutDocumentPaneGroup );
+
+      if( model is LayoutAnchorSide )
+      {
+        var templateModelView = new LayoutAnchorSideControl( model as LayoutAnchorSide );
+        templateModelView.SetBinding( LayoutAnchorSideControl.TemplateProperty, new Binding( "AnchorSideTemplate" ) { Source = this } );
+        return templateModelView;
+      }
+      if( model is LayoutAnchorGroup )
+      {
+        var templateModelView = new LayoutAnchorGroupControl( model as LayoutAnchorGroup );
+        templateModelView.SetBinding( LayoutAnchorGroupControl.TemplateProperty, new Binding( "AnchorGroupTemplate" ) { Source = this } );
+        return templateModelView;
+      }
 
-        /// <summary>
-        /// AnchorablePaneTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorablePaneTemplateProperty =
-            DependencyProperty.Register("AnchorablePaneTemplate", typeof(ControlTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ControlTemplate)null,
-                    new PropertyChangedCallback(OnAnchorablePaneTemplateChanged)));
+      if( model is LayoutDocumentPane )
+      {
+        var templateModelView = new LayoutDocumentPaneControl( model as LayoutDocumentPane );
+        templateModelView.SetBinding( LayoutDocumentPaneControl.StyleProperty, new Binding( "DocumentPaneControlStyle" ) { Source = this } );
+        return templateModelView;
+      }
+      if( model is LayoutAnchorablePane )
+      {
+        var templateModelView = new LayoutAnchorablePaneControl( model as LayoutAnchorablePane );
+        templateModelView.SetBinding( LayoutAnchorablePaneControl.StyleProperty, new Binding( "AnchorablePaneControlStyle" ) { Source = this } );
+        return templateModelView;
+      }
 
-        /// <summary>
-        /// Gets or sets the AnchorablePaneTemplate property.  This dependency property 
-        /// indicates ....
-        /// </summary>
-        public ControlTemplate AnchorablePaneTemplate
+      if( model is LayoutAnchorableFloatingWindow )
+      {
+        if( DesignerProperties.GetIsInDesignMode( this ) )
+          return null;
+        var modelFW = model as LayoutAnchorableFloatingWindow;
+        var newFW = new LayoutAnchorableFloatingWindowControl( modelFW )
         {
-            get { return (ControlTemplate)GetValue(AnchorablePaneTemplateProperty); }
-            set { SetValue(AnchorablePaneTemplateProperty, value); }
-        }
+          //Owner = Window.GetWindow(this) 
+        };
+        newFW.SetParentToMainWindowOf( this );
 
-        /// <summary>
-        /// Handles changes to the AnchorablePaneDataTemplate property.
-        /// </summary>
-        private static void OnAnchorablePaneTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        var paneForExtensions = modelFW.RootPanel.Children.OfType<LayoutAnchorablePane>().FirstOrDefault();
+        if( paneForExtensions != null )
         {
-            ((DockingManager)d).OnAnchorablePaneTemplateChanged(e);
-        }
+          //ensure that floating window position is inside current (or nearest) monitor
+          paneForExtensions.KeepInsideNearestMonitor();
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorablePaneDataTemplate property.
-        /// </summary>
-        protected virtual void OnAnchorablePaneTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
+          newFW.Left = paneForExtensions.FloatingLeft;
+          newFW.Top = paneForExtensions.FloatingTop;
+          newFW.Width = paneForExtensions.FloatingWidth;
+          newFW.Height = paneForExtensions.FloatingHeight;
         }
 
-        #endregion
-
-        #region AnchorSideTemplate
-
-        /// <summary>
-        /// AnchorSideTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorSideTemplateProperty =
-            DependencyProperty.Register("AnchorSideTemplate", typeof(ControlTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ControlTemplate)null));
-
-        /// <summary>
-        /// Gets or sets the AnchorSideTemplate property.  This dependency property 
-        /// indicates ....
-        /// </summary>
-        public ControlTemplate AnchorSideTemplate
+        newFW.ShowInTaskbar = false;
+        newFW.Show();
+        // Do not set the WindowState before showing or it will be lost
+        if( paneForExtensions != null && paneForExtensions.IsMaximized )
         {
-            get { return (ControlTemplate)GetValue(AnchorSideTemplateProperty); }
-            set { SetValue(AnchorSideTemplateProperty, value); }
+          newFW.WindowState = WindowState.Maximized;
         }
+        return newFW;
+      }
 
-        #endregion
-
-        #region AnchorGroupTemplate
-
-        /// <summary>
-        /// AnchorGroupTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorGroupTemplateProperty =
-            DependencyProperty.Register("AnchorGroupTemplate", typeof(ControlTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ControlTemplate)null));
-
-        /// <summary>
-        /// Gets or sets the AnchorGroupTemplate property.  This dependency property 
-        /// indicates the template used to render the AnchorGroup control.
-        /// </summary>
-        public ControlTemplate AnchorGroupTemplate
+      if( model is LayoutDocumentFloatingWindow )
+      {
+        if( DesignerProperties.GetIsInDesignMode( this ) )
+          return null;
+        var modelFW = model as LayoutDocumentFloatingWindow;
+        var newFW = new LayoutDocumentFloatingWindowControl( modelFW )
         {
-            get { return (ControlTemplate)GetValue(AnchorGroupTemplateProperty); }
-            set { SetValue(AnchorGroupTemplateProperty, value); }
-        }
-
-        #endregion
+          //Owner = Window.GetWindow(this) 
+        };
+        newFW.SetParentToMainWindowOf( this );
 
-        #region AnchorTemplate
+        var paneForExtensions = modelFW.RootDocument;
+        if( paneForExtensions != null )
+        {
+          //ensure that floating window position is inside current (or nearest) monitor
+          paneForExtensions.KeepInsideNearestMonitor();
 
-        /// <summary>
-        /// AnchorTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorTemplateProperty =
-            DependencyProperty.Register("AnchorTemplate", typeof(ControlTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ControlTemplate)null));
+          newFW.Left = paneForExtensions.FloatingLeft;
+          newFW.Top = paneForExtensions.FloatingTop;
+          newFW.Width = paneForExtensions.FloatingWidth;
+          newFW.Height = paneForExtensions.FloatingHeight;
+        }
 
-        /// <summary>
-        /// Gets or sets the AnchorTemplate property.  This dependency property 
-        /// indicates ....
-        /// </summary>
-        public ControlTemplate AnchorTemplate
+        newFW.ShowInTaskbar = false;
+        newFW.Show();
+        // Do not set the WindowState before showing or it will be lost
+        if( paneForExtensions != null && paneForExtensions.IsMaximized )
         {
-            get { return (ControlTemplate)GetValue(AnchorTemplateProperty); }
-            set { SetValue(AnchorTemplateProperty, value); }
+          newFW.WindowState = WindowState.Maximized;
         }
+        return newFW;
+      }
 
-        #endregion
-
-        #region DocumentPaneControlStyle
+      if( model is LayoutDocument )
+      {
+        var templateModelView = new LayoutDocumentControl() { Model = model as LayoutDocument };
+        return templateModelView;
+      }
 
-        /// <summary>
-        /// DocumentPaneControlStyle Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentPaneControlStyleProperty =
-            DependencyProperty.Register("DocumentPaneControlStyle", typeof(Style), typeof(DockingManager),
-                new FrameworkPropertyMetadata((Style)null,
-                    new PropertyChangedCallback(OnDocumentPaneControlStyleChanged)));
+      return null;
+    }
 
-        /// <summary>
-        /// Gets or sets the DocumentPaneControlStyle property.  This dependency property 
-        /// indicates ....
-        /// </summary>
-        public Style DocumentPaneControlStyle
-        {
-            get { return (Style)GetValue(DocumentPaneControlStyleProperty); }
-            set { SetValue(DocumentPaneControlStyleProperty, value); }
-        }
 
-        /// <summary>
-        /// Handles changes to the DocumentPaneControlStyle property.
-        /// </summary>
-        private static void OnDocumentPaneControlStyleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentPaneControlStyleChanged(e);
-        }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentPaneControlStyle property.
-        /// </summary>
-        protected virtual void OnDocumentPaneControlStyleChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    #region DocumentPaneTemplate
 
-        #endregion
+    /// <summary>
+    /// DocumentPaneTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentPaneTemplateProperty =
+        DependencyProperty.Register( "DocumentPaneTemplate", typeof( ControlTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ControlTemplate )null,
+                new PropertyChangedCallback( OnDocumentPaneTemplateChanged ) ) );
 
-        #region AnchorablePaneControlStyle
+    /// <summary>
+    /// Gets or sets the DocumentPaneDataTemplate property.  This dependency property 
+    /// indicates .
+    /// </summary>
+    public ControlTemplate DocumentPaneTemplate
+    {
+      get
+      {
+        return ( ControlTemplate )GetValue( DocumentPaneTemplateProperty );
+      }
+      set
+      {
+        SetValue( DocumentPaneTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// AnchorablePaneControlStyle Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorablePaneControlStyleProperty =
-            DependencyProperty.Register("AnchorablePaneControlStyle", typeof(Style), typeof(DockingManager),
-                new FrameworkPropertyMetadata((Style)null,
-                    new PropertyChangedCallback(OnAnchorablePaneControlStyleChanged)));
+    /// <summary>
+    /// Handles changes to the DocumentPaneTemplate property.
+    /// </summary>
+    private static void OnDocumentPaneTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentPaneTemplateChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the AnchorablePaneControlStyle property.  This dependency property 
-        /// indicates the style to apply to AnchorablePaneControl.
-        /// </summary>
-        public Style AnchorablePaneControlStyle
-        {
-            get { return (Style)GetValue(AnchorablePaneControlStyleProperty); }
-            set { SetValue(AnchorablePaneControlStyleProperty, value); }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentPaneTemplate property.
+    /// </summary>
+    protected virtual void OnDocumentPaneTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Handles changes to the AnchorablePaneControlStyle property.
-        /// </summary>
-        private static void OnAnchorablePaneControlStyleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorablePaneControlStyleChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorablePaneControlStyle property.
-        /// </summary>
-        protected virtual void OnAnchorablePaneControlStyleChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    #region AnchorablePaneTemplate
 
-        #endregion
+    /// <summary>
+    /// AnchorablePaneTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorablePaneTemplateProperty =
+        DependencyProperty.Register( "AnchorablePaneTemplate", typeof( ControlTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ControlTemplate )null,
+                new PropertyChangedCallback( OnAnchorablePaneTemplateChanged ) ) );
 
-        #region DocumentHeaderTemplate
+    /// <summary>
+    /// Gets or sets the AnchorablePaneTemplate property.  This dependency property 
+    /// indicates ....
+    /// </summary>
+    public ControlTemplate AnchorablePaneTemplate
+    {
+      get
+      {
+        return ( ControlTemplate )GetValue( AnchorablePaneTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorablePaneTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// DocumentHeaderTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentHeaderTemplateProperty =
-            DependencyProperty.Register("DocumentHeaderTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnDocumentHeaderTemplateChanged),
-                    new CoerceValueCallback(CoerceDocumentHeaderTemplateValue)));
+    /// <summary>
+    /// Handles changes to the AnchorablePaneDataTemplate property.
+    /// </summary>
+    private static void OnAnchorablePaneTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorablePaneTemplateChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the DocumentHeaderTemplate property.  This dependency property 
-        /// indicates data template to use for document header.
-        /// </summary>
-        public DataTemplate DocumentHeaderTemplate
-        {
-            get { return (DataTemplate)GetValue(DocumentHeaderTemplateProperty); }
-            set { SetValue(DocumentHeaderTemplateProperty, value); }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorablePaneDataTemplate property.
+    /// </summary>
+    protected virtual void OnAnchorablePaneTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Handles changes to the DocumentHeaderTemplate property.
-        /// </summary>
-        private static void OnDocumentHeaderTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentHeaderTemplateChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentHeaderTemplate property.
-        /// </summary>
-        protected virtual void OnDocumentHeaderTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    #region AnchorSideTemplate
 
-        /// <summary>
-        /// Coerces the DocumentHeaderTemplate value.
-        /// </summary>
-        private static object CoerceDocumentHeaderTemplateValue(DependencyObject d, object value)
-        {
-            if (value != null &&
-                d.GetValue(DocumentHeaderTemplateSelectorProperty) != null)
-                return null;
-            return value;
-        }
+    /// <summary>
+    /// AnchorSideTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorSideTemplateProperty =
+        DependencyProperty.Register( "AnchorSideTemplate", typeof( ControlTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ControlTemplate )null ) );
 
-        #endregion
+    /// <summary>
+    /// Gets or sets the AnchorSideTemplate property.  This dependency property 
+    /// indicates ....
+    /// </summary>
+    public ControlTemplate AnchorSideTemplate
+    {
+      get
+      {
+        return ( ControlTemplate )GetValue( AnchorSideTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorSideTemplateProperty, value );
+      }
+    }
 
-        #region DocumentHeaderTemplateSelector
+    #endregion
 
-        /// <summary>
-        /// DocumentHeaderTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentHeaderTemplateSelectorProperty =
-            DependencyProperty.Register("DocumentHeaderTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnDocumentHeaderTemplateSelectorChanged),
-                    new CoerceValueCallback(CoerceDocumentHeaderTemplateSelectorValue)));
+    #region AnchorGroupTemplate
 
-        /// <summary>
-        /// Gets or sets the DocumentHeaderTemplateSelector property.  This dependency property 
-        /// indicates the template selector that is used when selcting the data template for the header.
-        /// </summary>
-        public DataTemplateSelector DocumentHeaderTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(DocumentHeaderTemplateSelectorProperty); }
-            set { SetValue(DocumentHeaderTemplateSelectorProperty, value); }
-        }
+    /// <summary>
+    /// AnchorGroupTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorGroupTemplateProperty =
+        DependencyProperty.Register( "AnchorGroupTemplate", typeof( ControlTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ControlTemplate )null ) );
 
-        /// <summary>
-        /// Handles changes to the DocumentHeaderTemplateSelector property.
-        /// </summary>
-        private static void OnDocumentHeaderTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentHeaderTemplateSelectorChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the AnchorGroupTemplate property.  This dependency property 
+    /// indicates the template used to render the AnchorGroup control.
+    /// </summary>
+    public ControlTemplate AnchorGroupTemplate
+    {
+      get
+      {
+        return ( ControlTemplate )GetValue( AnchorGroupTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorGroupTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentHeaderTemplateSelector property.
-        /// </summary>
-        protected virtual void OnDocumentHeaderTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.NewValue != null &&
-                DocumentHeaderTemplate != null)
-                DocumentHeaderTemplate = null;
+    #endregion
 
-            if (DocumentPaneMenuItemHeaderTemplateSelector == null)
-                DocumentPaneMenuItemHeaderTemplateSelector = DocumentHeaderTemplateSelector;
+    #region AnchorTemplate
 
-        }
+    /// <summary>
+    /// AnchorTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorTemplateProperty =
+        DependencyProperty.Register( "AnchorTemplate", typeof( ControlTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ControlTemplate )null ) );
 
-        /// <summary>
-        /// Coerces the DocumentHeaderTemplateSelector value.
-        /// </summary>
-        private static object CoerceDocumentHeaderTemplateSelectorValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Gets or sets the AnchorTemplate property.  This dependency property 
+    /// indicates ....
+    /// </summary>
+    public ControlTemplate AnchorTemplate
+    {
+      get
+      {
+        return ( ControlTemplate )GetValue( AnchorTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorTemplateProperty, value );
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region DocumentTitleTemplate
+    #region DocumentPaneControlStyle
 
-        /// <summary>
-        /// DocumentTitleTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentTitleTemplateProperty =
-            DependencyProperty.Register("DocumentTitleTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnDocumentTitleTemplateChanged),
-                    new CoerceValueCallback(CoerceDocumentTitleTemplateValue)));
+    /// <summary>
+    /// DocumentPaneControlStyle Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentPaneControlStyleProperty =
+        DependencyProperty.Register( "DocumentPaneControlStyle", typeof( Style ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( Style )null,
+                new PropertyChangedCallback( OnDocumentPaneControlStyleChanged ) ) );
 
-        /// <summary>
-        /// Gets or sets the DocumentTitleTemplate property.  This dependency property 
-        /// indicates the datatemplate to use when creating the title for a document.
-        /// </summary>
-        public DataTemplate DocumentTitleTemplate
-        {
-            get { return (DataTemplate)GetValue(DocumentTitleTemplateProperty); }
-            set { SetValue(DocumentTitleTemplateProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the DocumentPaneControlStyle property.  This dependency property 
+    /// indicates ....
+    /// </summary>
+    public Style DocumentPaneControlStyle
+    {
+      get
+      {
+        return ( Style )GetValue( DocumentPaneControlStyleProperty );
+      }
+      set
+      {
+        SetValue( DocumentPaneControlStyleProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the DocumentTitleTemplate property.
-        /// </summary>
-        private static void OnDocumentTitleTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentTitleTemplateChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the DocumentPaneControlStyle property.
+    /// </summary>
+    private static void OnDocumentPaneControlStyleChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentPaneControlStyleChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentTitleTemplate property.
-        /// </summary>
-        protected virtual void OnDocumentTitleTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentPaneControlStyle property.
+    /// </summary>
+    protected virtual void OnDocumentPaneControlStyleChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Coerces the DocumentTitleTemplate value.
-        /// </summary>
-        private static object CoerceDocumentTitleTemplateValue(DependencyObject d, object value)
-        {
-            if (value != null &&
-                d.GetValue(DocumentTitleTemplateSelectorProperty) != null)
-                return null;
+    #endregion
 
-            return value;
-        }
+    #region AnchorablePaneControlStyle
 
-        #endregion
+    /// <summary>
+    /// AnchorablePaneControlStyle Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorablePaneControlStyleProperty =
+        DependencyProperty.Register( "AnchorablePaneControlStyle", typeof( Style ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( Style )null,
+                new PropertyChangedCallback( OnAnchorablePaneControlStyleChanged ) ) );
 
-        #region DocumentTitleTemplateSelector
+    /// <summary>
+    /// Gets or sets the AnchorablePaneControlStyle property.  This dependency property 
+    /// indicates the style to apply to AnchorablePaneControl.
+    /// </summary>
+    public Style AnchorablePaneControlStyle
+    {
+      get
+      {
+        return ( Style )GetValue( AnchorablePaneControlStyleProperty );
+      }
+      set
+      {
+        SetValue( AnchorablePaneControlStyleProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// DocumentTitleTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentTitleTemplateSelectorProperty =
-            DependencyProperty.Register("DocumentTitleTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnDocumentTitleTemplateSelectorChanged),
-                    new CoerceValueCallback(CoerceDocumentTitleTemplateSelectorValue)));
+    /// <summary>
+    /// Handles changes to the AnchorablePaneControlStyle property.
+    /// </summary>
+    private static void OnAnchorablePaneControlStyleChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorablePaneControlStyleChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the DocumentTitleTemplateSelector property.  This dependency property 
-        /// indicates the data template selector to use when creating the data template for the title.
-        /// </summary>
-        public DataTemplateSelector DocumentTitleTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(DocumentTitleTemplateSelectorProperty); }
-            set { SetValue(DocumentTitleTemplateSelectorProperty, value); }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorablePaneControlStyle property.
+    /// </summary>
+    protected virtual void OnAnchorablePaneControlStyleChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Handles changes to the DocumentTitleTemplateSelector property.
-        /// </summary>
-        private static void OnDocumentTitleTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentTitleTemplateSelectorChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentTitleTemplateSelector property.
-        /// </summary>
-        protected virtual void OnDocumentTitleTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.NewValue != null)
-                DocumentTitleTemplate = null;                
-        }
+    #region DocumentHeaderTemplate
 
-        /// <summary>
-        /// Coerces the DocumentTitleTemplateSelector value.
-        /// </summary>
-        private static object CoerceDocumentTitleTemplateSelectorValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// DocumentHeaderTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentHeaderTemplateProperty =
+        DependencyProperty.Register( "DocumentHeaderTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnDocumentHeaderTemplateChanged ),
+                new CoerceValueCallback( CoerceDocumentHeaderTemplateValue ) ) );
 
-        #endregion
+    /// <summary>
+    /// Gets or sets the DocumentHeaderTemplate property.  This dependency property 
+    /// indicates data template to use for document header.
+    /// </summary>
+    public DataTemplate DocumentHeaderTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( DocumentHeaderTemplateProperty );
+      }
+      set
+      {
+        SetValue( DocumentHeaderTemplateProperty, value );
+      }
+    }
 
-        #region AnchorableTitleTemplate
+    /// <summary>
+    /// Handles changes to the DocumentHeaderTemplate property.
+    /// </summary>
+    private static void OnDocumentHeaderTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentHeaderTemplateChanged( e );
+    }
 
-        /// <summary>
-        /// AnchorableTitleTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableTitleTemplateProperty =
-            DependencyProperty.Register("AnchorableTitleTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnAnchorableTitleTemplateChanged),
-                    new CoerceValueCallback(CoerceAnchorableTitleTemplateValue)));
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentHeaderTemplate property.
+    /// </summary>
+    protected virtual void OnDocumentHeaderTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Gets or sets the AnchorableTitleTemplate property.  This dependency property 
-        /// indicates the data template to use for anchorables title.
-        /// </summary>
-        public DataTemplate AnchorableTitleTemplate
-        {
-            get { return (DataTemplate)GetValue(AnchorableTitleTemplateProperty); }
-            set { SetValue(AnchorableTitleTemplateProperty, value); }
-        }
+    /// <summary>
+    /// Coerces the DocumentHeaderTemplate value.
+    /// </summary>
+    private static object CoerceDocumentHeaderTemplateValue( DependencyObject d, object value )
+    {
+      if( value != null &&
+          d.GetValue( DocumentHeaderTemplateSelectorProperty ) != null )
+        return null;
+      return value;
+    }
 
-        /// <summary>
-        /// Handles changes to the AnchorableTitleTemplate property.
-        /// </summary>
-        private static void OnAnchorableTitleTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorableTitleTemplateChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorableTitleTemplate property.
-        /// </summary>
-        protected virtual void OnAnchorableTitleTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    #region DocumentHeaderTemplateSelector
 
-        /// <summary>
-        /// Coerces the AnchorableTitleTemplate value.
-        /// </summary>
-        private static object CoerceAnchorableTitleTemplateValue(DependencyObject d, object value)
-        {
-            if (value != null &&
-                d.GetValue(AnchorableTitleTemplateSelectorProperty) != null)
-                return null;
-            return value;
-        }
+    /// <summary>
+    /// DocumentHeaderTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentHeaderTemplateSelectorProperty =
+        DependencyProperty.Register( "DocumentHeaderTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnDocumentHeaderTemplateSelectorChanged ),
+                new CoerceValueCallback( CoerceDocumentHeaderTemplateSelectorValue ) ) );
 
-        #endregion
+    /// <summary>
+    /// Gets or sets the DocumentHeaderTemplateSelector property.  This dependency property 
+    /// indicates the template selector that is used when selcting the data template for the header.
+    /// </summary>
+    public DataTemplateSelector DocumentHeaderTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( DocumentHeaderTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( DocumentHeaderTemplateSelectorProperty, value );
+      }
+    }
 
-        #region AnchorableTitleTemplateSelector
+    /// <summary>
+    /// Handles changes to the DocumentHeaderTemplateSelector property.
+    /// </summary>
+    private static void OnDocumentHeaderTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentHeaderTemplateSelectorChanged( e );
+    }
 
-        /// <summary>
-        /// AnchorableTitleTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableTitleTemplateSelectorProperty =
-            DependencyProperty.Register("AnchorableTitleTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnAnchorableTitleTemplateSelectorChanged)));
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentHeaderTemplateSelector property.
+    /// </summary>
+    protected virtual void OnDocumentHeaderTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.NewValue != null &&
+          DocumentHeaderTemplate != null )
+        DocumentHeaderTemplate = null;
 
-        /// <summary>
-        /// Gets or sets the AnchorableTitleTemplateSelector property.  This dependency property 
-        /// indicates selctor to use when selecting data template for the title of anchorables.
-        /// </summary>
-        public DataTemplateSelector AnchorableTitleTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(AnchorableTitleTemplateSelectorProperty); }
-            set { SetValue(AnchorableTitleTemplateSelectorProperty, value); }
-        }
+      if( DocumentPaneMenuItemHeaderTemplateSelector == null )
+        DocumentPaneMenuItemHeaderTemplateSelector = DocumentHeaderTemplateSelector;
 
-        /// <summary>
-        /// Handles changes to the AnchorableTitleTemplateSelector property.
-        /// </summary>
-        private static void OnAnchorableTitleTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorableTitleTemplateSelectorChanged(e);
-        }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorableTitleTemplateSelector property.
-        /// </summary>
-        protected virtual void OnAnchorableTitleTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.NewValue != null &&
-                AnchorableTitleTemplate != null)
-                AnchorableTitleTemplate = null;
-        }
+    /// <summary>
+    /// Coerces the DocumentHeaderTemplateSelector value.
+    /// </summary>
+    private static object CoerceDocumentHeaderTemplateSelectorValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #endregion
+    #endregion
 
-        #region AnchorableHeaderTemplate
+    #region DocumentTitleTemplate
 
-        /// <summary>
-        /// AnchorableHeaderTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableHeaderTemplateProperty =
-            DependencyProperty.Register("AnchorableHeaderTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnAnchorableHeaderTemplateChanged),
-                    new CoerceValueCallback(CoerceAnchorableHeaderTemplateValue)));
+    /// <summary>
+    /// DocumentTitleTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentTitleTemplateProperty =
+        DependencyProperty.Register( "DocumentTitleTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnDocumentTitleTemplateChanged ),
+                new CoerceValueCallback( CoerceDocumentTitleTemplateValue ) ) );
 
-        /// <summary>
-        /// Gets or sets the AnchorableHeaderTemplate property.  This dependency property 
-        /// indicates the data template to use for anchorable templates.
-        /// </summary>
-        public DataTemplate AnchorableHeaderTemplate
-        {
-            get { return (DataTemplate)GetValue(AnchorableHeaderTemplateProperty); }
-            set { SetValue(AnchorableHeaderTemplateProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the DocumentTitleTemplate property.  This dependency property 
+    /// indicates the datatemplate to use when creating the title for a document.
+    /// </summary>
+    public DataTemplate DocumentTitleTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( DocumentTitleTemplateProperty );
+      }
+      set
+      {
+        SetValue( DocumentTitleTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the AnchorableHeaderTemplate property.
-        /// </summary>
-        private static void OnAnchorableHeaderTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorableHeaderTemplateChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the DocumentTitleTemplate property.
+    /// </summary>
+    private static void OnDocumentTitleTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentTitleTemplateChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorableHeaderTemplate property.
-        /// </summary>
-        protected virtual void OnAnchorableHeaderTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentTitleTemplate property.
+    /// </summary>
+    protected virtual void OnDocumentTitleTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// Coerces the AnchorableHeaderTemplate value.
-        /// </summary>
-        private static object CoerceAnchorableHeaderTemplateValue(DependencyObject d, object value)
-        {
-            if (value != null &&
-                d.GetValue(AnchorableHeaderTemplateSelectorProperty) != null)
-                return null;
+    /// <summary>
+    /// Coerces the DocumentTitleTemplate value.
+    /// </summary>
+    private static object CoerceDocumentTitleTemplateValue( DependencyObject d, object value )
+    {
+      if( value != null &&
+          d.GetValue( DocumentTitleTemplateSelectorProperty ) != null )
+        return null;
 
-            return value;
-        }
+      return value;
+    }
 
-        #endregion
+    #endregion
 
-        #region AnchorableHeaderTemplateSelector
+    #region DocumentTitleTemplateSelector
 
-        /// <summary>
-        /// AnchorableHeaderTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableHeaderTemplateSelectorProperty =
-            DependencyProperty.Register("AnchorableHeaderTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnAnchorableHeaderTemplateSelectorChanged)));
+    /// <summary>
+    /// DocumentTitleTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentTitleTemplateSelectorProperty =
+        DependencyProperty.Register( "DocumentTitleTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnDocumentTitleTemplateSelectorChanged ),
+                new CoerceValueCallback( CoerceDocumentTitleTemplateSelectorValue ) ) );
 
-        /// <summary>
-        /// Gets or sets the AnchorableHeaderTemplateSelector property.  This dependency property 
-        /// indicates the selector to use when selecting the data template for anchorable headers.
-        /// </summary>
-        public DataTemplateSelector AnchorableHeaderTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(AnchorableHeaderTemplateSelectorProperty); }
-            set { SetValue(AnchorableHeaderTemplateSelectorProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the DocumentTitleTemplateSelector property.  This dependency property 
+    /// indicates the data template selector to use when creating the data template for the title.
+    /// </summary>
+    public DataTemplateSelector DocumentTitleTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( DocumentTitleTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( DocumentTitleTemplateSelectorProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the AnchorableHeaderTemplateSelector property.
-        /// </summary>
-        private static void OnAnchorableHeaderTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorableHeaderTemplateSelectorChanged(e);
-        }
+    /// <summary>
+    /// Handles changes to the DocumentTitleTemplateSelector property.
+    /// </summary>
+    private static void OnDocumentTitleTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentTitleTemplateSelectorChanged( e );
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorableHeaderTemplateSelector property.
-        /// </summary>
-        protected virtual void OnAnchorableHeaderTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.NewValue != null)
-                AnchorableHeaderTemplate = null;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentTitleTemplateSelector property.
+    /// </summary>
+    protected virtual void OnDocumentTitleTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.NewValue != null )
+        DocumentTitleTemplate = null;
+    }
 
-        #endregion
+    /// <summary>
+    /// Coerces the DocumentTitleTemplateSelector value.
+    /// </summary>
+    private static object CoerceDocumentTitleTemplateSelectorValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        #region LayoutRootPanel
+    #endregion
 
-        /// <summary>
-        /// LayoutRootPanel Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutRootPanelProperty =
-            DependencyProperty.Register("LayoutRootPanel", typeof(LayoutPanelControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutPanelControl)null,
-                    new PropertyChangedCallback(OnLayoutRootPanelChanged)));
+    #region AnchorableTitleTemplate
 
-        /// <summary>
-        /// Gets or sets the LayoutRootPanel property.  This dependency property 
-        /// indicates the layout panel control which is attached to the Layout.Root property.
-        /// </summary>
-        public LayoutPanelControl LayoutRootPanel
-        {
-            get { return (LayoutPanelControl)GetValue(LayoutRootPanelProperty); }
-            set { SetValue(LayoutRootPanelProperty, value); }
-        }
+    /// <summary>
+    /// AnchorableTitleTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableTitleTemplateProperty =
+        DependencyProperty.Register( "AnchorableTitleTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnAnchorableTitleTemplateChanged ),
+                new CoerceValueCallback( CoerceAnchorableTitleTemplateValue ) ) );
 
-        /// <summary>
-        /// Handles changes to the LayoutRootPanel property.
-        /// </summary>
-        private static void OnLayoutRootPanelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLayoutRootPanelChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the AnchorableTitleTemplate property.  This dependency property 
+    /// indicates the data template to use for anchorables title.
+    /// </summary>
+    public DataTemplate AnchorableTitleTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( AnchorableTitleTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorableTitleTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the LayoutRootPanel property.
-        /// </summary>
-        protected virtual void OnLayoutRootPanelChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
-        }
+    /// <summary>
+    /// Handles changes to the AnchorableTitleTemplate property.
+    /// </summary>
+    private static void OnAnchorableTitleTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorableTitleTemplateChanged( e );
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorableTitleTemplate property.
+    /// </summary>
+    protected virtual void OnAnchorableTitleTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        #region RightSidePanel
+    /// <summary>
+    /// Coerces the AnchorableTitleTemplate value.
+    /// </summary>
+    private static object CoerceAnchorableTitleTemplateValue( DependencyObject d, object value )
+    {
+      if( value != null &&
+          d.GetValue( AnchorableTitleTemplateSelectorProperty ) != null )
+        return null;
+      return value;
+    }
 
-        /// <summary>
-        /// RightSidePanel Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty RightSidePanelProperty =
-            DependencyProperty.Register("RightSidePanel", typeof(LayoutAnchorSideControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutAnchorSideControl)null,
-                    new PropertyChangedCallback(OnRightSidePanelChanged)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the RightSidePanel property.  This dependency property 
-        /// indicates right side anchor panel.
-        /// </summary>
-        public LayoutAnchorSideControl RightSidePanel
-        {
-            get { return (LayoutAnchorSideControl)GetValue(RightSidePanelProperty); }
-            set { SetValue(RightSidePanelProperty, value); }
-        }
+    #region AnchorableTitleTemplateSelector
 
-        /// <summary>
-        /// Handles changes to the RightSidePanel property.
-        /// </summary>
-        private static void OnRightSidePanelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnRightSidePanelChanged(e);
-        }
+    /// <summary>
+    /// AnchorableTitleTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableTitleTemplateSelectorProperty =
+        DependencyProperty.Register( "AnchorableTitleTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnAnchorableTitleTemplateSelectorChanged ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the RightSidePanel property.
-        /// </summary>
-        protected virtual void OnRightSidePanelChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
-        }
+    /// <summary>
+    /// Gets or sets the AnchorableTitleTemplateSelector property.  This dependency property 
+    /// indicates selctor to use when selecting data template for the title of anchorables.
+    /// </summary>
+    public DataTemplateSelector AnchorableTitleTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( AnchorableTitleTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( AnchorableTitleTemplateSelectorProperty, value );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Handles changes to the AnchorableTitleTemplateSelector property.
+    /// </summary>
+    private static void OnAnchorableTitleTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorableTitleTemplateSelectorChanged( e );
+    }
 
-        #region LeftSidePanel
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorableTitleTemplateSelector property.
+    /// </summary>
+    protected virtual void OnAnchorableTitleTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.NewValue != null &&
+          AnchorableTitleTemplate != null )
+        AnchorableTitleTemplate = null;
+    }
 
-        /// <summary>
-        /// LeftSidePanel Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LeftSidePanelProperty =
-            DependencyProperty.Register("LeftSidePanel", typeof(LayoutAnchorSideControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutAnchorSideControl)null,
-                    new PropertyChangedCallback(OnLeftSidePanelChanged)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the LeftSidePanel property.  This dependency property 
-        /// indicates the left side panel control.
-        /// </summary>
-        public LayoutAnchorSideControl LeftSidePanel
-        {
-            get { return (LayoutAnchorSideControl)GetValue(LeftSidePanelProperty); }
-            set { SetValue(LeftSidePanelProperty, value); }
-        }
+    #region AnchorableHeaderTemplate
 
-        /// <summary>
-        /// Handles changes to the LeftSidePanel property.
-        /// </summary>
-        private static void OnLeftSidePanelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLeftSidePanelChanged(e);
-        }
+    /// <summary>
+    /// AnchorableHeaderTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableHeaderTemplateProperty =
+        DependencyProperty.Register( "AnchorableHeaderTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnAnchorableHeaderTemplateChanged ),
+                new CoerceValueCallback( CoerceAnchorableHeaderTemplateValue ) ) );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the LeftSidePanel property.
-        /// </summary>
-        protected virtual void OnLeftSidePanelChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
-        }
+    /// <summary>
+    /// Gets or sets the AnchorableHeaderTemplate property.  This dependency property 
+    /// indicates the data template to use for anchorable templates.
+    /// </summary>
+    public DataTemplate AnchorableHeaderTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( AnchorableHeaderTemplateProperty );
+      }
+      set
+      {
+        SetValue( AnchorableHeaderTemplateProperty, value );
+      }
+    }
 
-        #endregion
+    /// <summary>
+    /// Handles changes to the AnchorableHeaderTemplate property.
+    /// </summary>
+    private static void OnAnchorableHeaderTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorableHeaderTemplateChanged( e );
+    }
 
-        #region TopSidePanel
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorableHeaderTemplate property.
+    /// </summary>
+    protected virtual void OnAnchorableHeaderTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        /// <summary>
-        /// TopSidePanel Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty TopSidePanelProperty =
-            DependencyProperty.Register("TopSidePanel", typeof(LayoutAnchorSideControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutAnchorSideControl)null,
-                    new PropertyChangedCallback(OnTopSidePanelChanged)));
+    /// <summary>
+    /// Coerces the AnchorableHeaderTemplate value.
+    /// </summary>
+    private static object CoerceAnchorableHeaderTemplateValue( DependencyObject d, object value )
+    {
+      if( value != null &&
+          d.GetValue( AnchorableHeaderTemplateSelectorProperty ) != null )
+        return null;
 
-        /// <summary>
-        /// Gets or sets the TopSidePanel property.  This dependency property 
-        /// indicates top side control panel.
-        /// </summary>
-        public LayoutAnchorSideControl TopSidePanel
-        {
-            get { return (LayoutAnchorSideControl)GetValue(TopSidePanelProperty); }
-            set { SetValue(TopSidePanelProperty, value); }
-        }
+      return value;
+    }
 
-        /// <summary>
-        /// Handles changes to the TopSidePanel property.
-        /// </summary>
-        private static void OnTopSidePanelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnTopSidePanelChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the TopSidePanel property.
-        /// </summary>
-        protected virtual void OnTopSidePanelChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
-        }
+    #region AnchorableHeaderTemplateSelector
 
-        #endregion
+    /// <summary>
+    /// AnchorableHeaderTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableHeaderTemplateSelectorProperty =
+        DependencyProperty.Register( "AnchorableHeaderTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnAnchorableHeaderTemplateSelectorChanged ) ) );
 
-        #region BottomSidePanel
+    /// <summary>
+    /// Gets or sets the AnchorableHeaderTemplateSelector property.  This dependency property 
+    /// indicates the selector to use when selecting the data template for anchorable headers.
+    /// </summary>
+    public DataTemplateSelector AnchorableHeaderTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( AnchorableHeaderTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( AnchorableHeaderTemplateSelectorProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// BottomSidePanel Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty BottomSidePanelProperty =
-            DependencyProperty.Register("BottomSidePanel", typeof(LayoutAnchorSideControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutAnchorSideControl)null,
-                    new PropertyChangedCallback(OnBottomSidePanelChanged)));
+    /// <summary>
+    /// Handles changes to the AnchorableHeaderTemplateSelector property.
+    /// </summary>
+    private static void OnAnchorableHeaderTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorableHeaderTemplateSelectorChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the BottomSidePanel property.  This dependency property 
-        /// indicates bottom side panel control.
-        /// </summary>
-        public LayoutAnchorSideControl BottomSidePanel
-        {
-            get { return (LayoutAnchorSideControl)GetValue(BottomSidePanelProperty); }
-            set { SetValue(BottomSidePanelProperty, value); }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorableHeaderTemplateSelector property.
+    /// </summary>
+    protected virtual void OnAnchorableHeaderTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.NewValue != null )
+        AnchorableHeaderTemplate = null;
+    }
 
-        /// <summary>
-        /// Handles changes to the BottomSidePanel property.
-        /// </summary>
-        private static void OnBottomSidePanelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnBottomSidePanelChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the BottomSidePanel property.
-        /// </summary>
-        protected virtual void OnBottomSidePanelChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
-        }
+    #region LayoutRootPanel
 
-        #endregion
+    /// <summary>
+    /// LayoutRootPanel Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutRootPanelProperty =
+        DependencyProperty.Register( "LayoutRootPanel", typeof( LayoutPanelControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutPanelControl )null,
+                new PropertyChangedCallback( OnLayoutRootPanelChanged ) ) );
 
-        #region LogicalChildren
+    /// <summary>
+    /// Gets or sets the LayoutRootPanel property.  This dependency property 
+    /// indicates the layout panel control which is attached to the Layout.Root property.
+    /// </summary>
+    public LayoutPanelControl LayoutRootPanel
+    {
+      get
+      {
+        return ( LayoutPanelControl )GetValue( LayoutRootPanelProperty );
+      }
+      set
+      {
+        SetValue( LayoutRootPanelProperty, value );
+      }
+    }
 
-        List<WeakReference> _logicalChildren = new List<WeakReference>();
+    /// <summary>
+    /// Handles changes to the LayoutRootPanel property.
+    /// </summary>
+    private static void OnLayoutRootPanelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutRootPanelChanged( e );
+    }
 
-        protected override System.Collections.IEnumerator LogicalChildren
-        {
-            get
-            {
-                return _logicalChildren.Select(ch => ch.GetValueOrDefault<object>()).GetEnumerator();
-            }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the LayoutRootPanel property.
+    /// </summary>
+    protected virtual void OnLayoutRootPanelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
+    }
 
-    public System.Collections.IEnumerator LogicalChildrenPublic
+    #endregion
+
+    #region RightSidePanel
+
+    /// <summary>
+    /// RightSidePanel Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty RightSidePanelProperty =
+        DependencyProperty.Register( "RightSidePanel", typeof( LayoutAnchorSideControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorSideControl )null,
+                new PropertyChangedCallback( OnRightSidePanelChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the RightSidePanel property.  This dependency property 
+    /// indicates right side anchor panel.
+    /// </summary>
+    public LayoutAnchorSideControl RightSidePanel
     {
       get
       {
-        return this.LogicalChildren;
+        return ( LayoutAnchorSideControl )GetValue( RightSidePanelProperty );
+      }
+      set
+      {
+        SetValue( RightSidePanelProperty, value );
       }
     }
 
+    /// <summary>
+    /// Handles changes to the RightSidePanel property.
+    /// </summary>
+    private static void OnRightSidePanelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnRightSidePanelChanged( e );
+    }
 
-        internal void InternalAddLogicalChild(object element)
-        {
-#if DEBUG
-            if (_logicalChildren.Select(ch => ch.GetValueOrDefault<object>()).Contains(element))
-                new InvalidOperationException();
-#endif
-            if (_logicalChildren.Select(ch => ch.GetValueOrDefault<object>()).Contains(element))
-                return;
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the RightSidePanel property.
+    /// </summary>
+    protected virtual void OnRightSidePanelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
+    }
 
-            _logicalChildren.Add(new WeakReference(element));
-            AddLogicalChild(element);
-        }
+    #endregion
 
-        internal void InternalRemoveLogicalChild(object element)
-        {
-            var wrToRemove = _logicalChildren.FirstOrDefault(ch => ch.GetValueOrDefault<object>() == element);
-            if (wrToRemove != null)
-                _logicalChildren.Remove(wrToRemove);
-            RemoveLogicalChild(element);
-        }
+    #region LeftSidePanel
 
-        void ClearLogicalChildrenList()
-        {
-            foreach (var child in _logicalChildren.Select(ch => ch.GetValueOrDefault<object>()).ToArray())
-                RemoveLogicalChild(child);
-            _logicalChildren.Clear();
-        }
+    /// <summary>
+    /// LeftSidePanel Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LeftSidePanelProperty =
+        DependencyProperty.Register( "LeftSidePanel", typeof( LayoutAnchorSideControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorSideControl )null,
+                new PropertyChangedCallback( OnLeftSidePanelChanged ) ) );
 
-        #endregion  
+    /// <summary>
+    /// Gets or sets the LeftSidePanel property.  This dependency property 
+    /// indicates the left side panel control.
+    /// </summary>
+    public LayoutAnchorSideControl LeftSidePanel
+    {
+      get
+      {
+        return ( LayoutAnchorSideControl )GetValue( LeftSidePanelProperty );
+      }
+      set
+      {
+        SetValue( LeftSidePanelProperty, value );
+      }
+    }
 
-        #region AutoHide window
-        internal void ShowAutoHideWindow(LayoutAnchorControl anchor)
-        {
-            _autoHideWindowManager.ShowAutoHideWindow(anchor);
-            //if (_autohideArea == null)
-            //    return;
+    /// <summary>
+    /// Handles changes to the LeftSidePanel property.
+    /// </summary>
+    private static void OnLeftSidePanelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLeftSidePanelChanged( e );
+    }
 
-            //if (AutoHideWindow != null && AutoHideWindow.Model == anchor.Model)
-            //    return;
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the LeftSidePanel property.
+    /// </summary>
+    protected virtual void OnLeftSidePanelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
+    }
 
-          //Trace.WriteLine("ShowAutoHideWindow()");
+    #endregion
 
-            //_currentAutohiddenAnchor = new WeakReference(anchor);
+    #region TopSidePanel
 
-            //HideAutoHideWindow(anchor);
+    /// <summary>
+    /// TopSidePanel Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty TopSidePanelProperty =
+        DependencyProperty.Register( "TopSidePanel", typeof( LayoutAnchorSideControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorSideControl )null,
+                new PropertyChangedCallback( OnTopSidePanelChanged ) ) );
 
-            //SetAutoHideWindow(new LayoutAutoHideWindowControl(anchor));
-            //AutoHideWindow.Show();
-        }
+    /// <summary>
+    /// Gets or sets the TopSidePanel property.  This dependency property 
+    /// indicates top side control panel.
+    /// </summary>
+    public LayoutAnchorSideControl TopSidePanel
+    {
+      get
+      {
+        return ( LayoutAnchorSideControl )GetValue( TopSidePanelProperty );
+      }
+      set
+      {
+        SetValue( TopSidePanelProperty, value );
+      }
+    }
 
-        internal void HideAutoHideWindow(LayoutAnchorControl anchor)
-        {
-            _autoHideWindowManager.HideAutoWindow(anchor);
-        }
+    /// <summary>
+    /// Handles changes to the TopSidePanel property.
+    /// </summary>
+    private static void OnTopSidePanelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnTopSidePanelChanged( e );
+    }
 
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the TopSidePanel property.
+    /// </summary>
+    protected virtual void OnTopSidePanelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
+    }
 
-        void SetupAutoHideWindow()
-        {
-            _autohideArea = GetTemplateChild("PART_AutoHideArea") as FrameworkElement;
+    #endregion
 
-            if (_autoHideWindowManager != null)
-                _autoHideWindowManager.HideAutoWindow();
-            else
-                _autoHideWindowManager = new AutoHideWindowManager(this);
+    #region BottomSidePanel
 
-            if (AutoHideWindow != null)
-                AutoHideWindow.Dispose();
+    /// <summary>
+    /// BottomSidePanel Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty BottomSidePanelProperty =
+        DependencyProperty.Register( "BottomSidePanel", typeof( LayoutAnchorSideControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutAnchorSideControl )null,
+                new PropertyChangedCallback( OnBottomSidePanelChanged ) ) );
 
-            SetAutoHideWindow(new LayoutAutoHideWindowControl());
-        }
+    /// <summary>
+    /// Gets or sets the BottomSidePanel property.  This dependency property 
+    /// indicates bottom side panel control.
+    /// </summary>
+    public LayoutAnchorSideControl BottomSidePanel
+    {
+      get
+      {
+        return ( LayoutAnchorSideControl )GetValue( BottomSidePanelProperty );
+      }
+      set
+      {
+        SetValue( BottomSidePanelProperty, value );
+      }
+    }
 
-        AutoHideWindowManager _autoHideWindowManager;
+    /// <summary>
+    /// Handles changes to the BottomSidePanel property.
+    /// </summary>
+    private static void OnBottomSidePanelChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnBottomSidePanelChanged( e );
+    }
 
-        FrameworkElement _autohideArea;
-        internal FrameworkElement GetAutoHideAreaElement()
-        {
-            return _autohideArea;
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the BottomSidePanel property.
+    /// </summary>
+    protected virtual void OnBottomSidePanelChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
+    }
 
-        #region AutoHideWindow
+    #endregion
 
-        /// <summary>
-        /// AutoHideWindow Read-Only Dependency Property
-        /// </summary>
-        private static readonly DependencyPropertyKey AutoHideWindowPropertyKey
-            = DependencyProperty.RegisterReadOnly("AutoHideWindow", typeof(LayoutAutoHideWindowControl), typeof(DockingManager),
-                new FrameworkPropertyMetadata((LayoutAutoHideWindowControl)null,
-                    new PropertyChangedCallback(OnAutoHideWindowChanged)));
+    #region LogicalChildren
 
-        public static readonly DependencyProperty AutoHideWindowProperty
-            = AutoHideWindowPropertyKey.DependencyProperty;
+    List<WeakReference> _logicalChildren = new List<WeakReference>();
 
-        /// <summary>
-        /// Gets the AutoHideWindow property.  This dependency property 
-        /// indicates the currently shown autohide window.
-        /// </summary>
-        public LayoutAutoHideWindowControl AutoHideWindow
-        {
-            get { return (LayoutAutoHideWindowControl)GetValue(AutoHideWindowProperty); }
-        }
+    protected override System.Collections.IEnumerator LogicalChildren
+    {
+      get
+      {
+        return _logicalChildren.Select( ch => ch.GetValueOrDefault<object>() ).GetEnumerator();
+      }
+    }
 
-        /// <summary>
-        /// Provides a secure method for setting the AutoHideWindow property.  
-        /// This dependency property indicates the currently shown autohide window.
-        /// </summary>
-        /// <param name="value">The new value for the property.</param>
-        protected void SetAutoHideWindow(LayoutAutoHideWindowControl value)
-        {
-            SetValue(AutoHideWindowPropertyKey, value);
-        }
+    public System.Collections.IEnumerator LogicalChildrenPublic
+    {
+      get
+      {
+        return this.LogicalChildren;
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the AutoHideWindow property.
-        /// </summary>
-        private static void OnAutoHideWindowChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAutoHideWindowChanged(e);
-        }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AutoHideWindow property.
-        /// </summary>
-        protected virtual void OnAutoHideWindowChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.OldValue != null)
-                InternalRemoveLogicalChild(e.OldValue);
-            if (e.NewValue != null)
-                InternalAddLogicalChild(e.NewValue);
+    internal void InternalAddLogicalChild( object element )
+    {
+#if DEBUG
+      if( _logicalChildren.Select( ch => ch.GetValueOrDefault<object>() ).Contains( element ) )
+        new InvalidOperationException();
+#endif
+      if( _logicalChildren.Select( ch => ch.GetValueOrDefault<object>() ).Contains( element ) )
+        return;
 
-        }
+      _logicalChildren.Add( new WeakReference( element ) );
+      AddLogicalChild( element );
+    }
+
+    internal void InternalRemoveLogicalChild( object element )
+    {
+      var wrToRemove = _logicalChildren.FirstOrDefault( ch => ch.GetValueOrDefault<object>() == element );
+      if( wrToRemove != null )
+        _logicalChildren.Remove( wrToRemove );
+      RemoveLogicalChild( element );
+    }
+
+    void ClearLogicalChildrenList()
+    {
+      foreach( var child in _logicalChildren.Select( ch => ch.GetValueOrDefault<object>() ).ToArray() )
+        RemoveLogicalChild( child );
+      _logicalChildren.Clear();
+    }
 
-        #endregion
-
-
-
-        #endregion
-        // #region AutoHide window
-        //WeakReference _currentAutohiddenAnchor = null;
-        //internal void ShowAutoHideWindow(LayoutAnchorControl anchor)
-        //{
-        //    if (_autohideArea == null)
-        //        return;
-
-        //    if (AutoHideWindow != null && AutoHideWindow.Model == anchor.Model)
-        //        return;
-
-        //    Trace.WriteLine("ShowAutoHideWindow()");
-
-        //    _currentAutohiddenAnchor = new WeakReference(anchor);
-
-        //    HideAutoHideWindow(anchor);
-
-        //    SetAutoHideWindow(new LayoutAutoHideWindowControl(anchor));
-        //}
-
-        //internal void HideAutoHideWindow(LayoutAnchorControl anchor)
-        //{
-        //    if (AutoHideWindow != null)
-        //    {
-        //        if (anchor == _currentAutohiddenAnchor.GetValueOrDefault<LayoutAnchorControl>())
-        //        {
-        //            Trace.WriteLine("AutoHideWindow()");
-        //            AutoHideWindow.Dispose();
-        //            SetAutoHideWindow(null);
-        //        }
-        //    }
-        //}
-
-        //FrameworkElement _autohideArea;
-        //internal FrameworkElement GetAutoHideAreaElement()
-        //{
-        //    return _autohideArea;
-        //}
-
-        //void SetupAutoHideArea()
-        //{
-        //    _autohideArea = GetTemplateChild("PART_AutoHideArea") as FrameworkElement;
-        //}
-
-        // #region AutoHideWindow
-
-        ///// <summary>
-        ///// AutoHideWindow Read-Only Dependency Property
-        ///// </summary>
-        //private static readonly DependencyPropertyKey AutoHideWindowPropertyKey
-        //    = DependencyProperty.RegisterReadOnly("AutoHideWindow", typeof(LayoutAutoHideWindowControl), typeof(DockingManager),
-        //        new FrameworkPropertyMetadata((LayoutAutoHideWindowControl)null,
-        //            new PropertyChangedCallback(OnAutoHideWindowChanged)));
-
-        //public static readonly DependencyProperty AutoHideWindowProperty
-        //    = AutoHideWindowPropertyKey.DependencyProperty;
-
-        ///// <summary>
-        ///// Gets the AutoHideWindow property.  This dependency property 
-        ///// indicates the currently shown autohide window.
-        ///// </summary>
-        //public LayoutAutoHideWindowControl AutoHideWindow
-        //{
-        //    get { return (LayoutAutoHideWindowControl)GetValue(AutoHideWindowProperty); }
-        //}
-
-        ///// <summary>
-        ///// Provides a secure method for setting the AutoHideWindow property.  
-        ///// This dependency property indicates the currently shown autohide window.
-        ///// </summary>
-        ///// <param name="value">The new value for the property.</param>
-        //protected void SetAutoHideWindow(LayoutAutoHideWindowControl value)
-        //{
-        //    SetValue(AutoHideWindowPropertyKey, value);
-        //}
-
-        ///// <summary>
-        ///// Handles changes to the AutoHideWindow property.
-        ///// </summary>
-        //private static void OnAutoHideWindowChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        //{
-        //    ((DockingManager)d).OnAutoHideWindowChanged(e);
-        //}
-
-        ///// <summary>
-        ///// Provides derived classes an opportunity to handle changes to the AutoHideWindow property.
-        ///// </summary>
-        //protected virtual void OnAutoHideWindowChanged(DependencyPropertyChangedEventArgs e)
-        //{
-        //    if (e.OldValue != null)
-        //        ((ILogicalChildrenContainer)this).InternalRemoveLogicalChild(e.OldValue);
-        //    if (e.NewValue != null)
-        //        ((ILogicalChildrenContainer)this).InternalAddLogicalChild(e.NewValue);
-        //}
-
-        // #endregion
-
-
-
-        // #endregion
-
-        #region Floating Windows
-        List<LayoutFloatingWindowControl> _fwList = new List<LayoutFloatingWindowControl>();
-
-        internal void StartDraggingFloatingWindowForContent(LayoutContent contentModel, bool startDrag = true)
-        {
-            if (!contentModel.CanFloat)
-                return;
-            var contentModelAsAnchorable = contentModel as LayoutAnchorable;
-            if (contentModelAsAnchorable != null &&
-                contentModelAsAnchorable.IsAutoHidden)
-                contentModelAsAnchorable.ToggleAutoHide();
-
-            var parentPane = contentModel.Parent as ILayoutPane;
-            var parentPaneAsPositionableElement = contentModel.Parent as ILayoutPositionableElement;
-            var parentPaneAsWithActualSize = contentModel.Parent as ILayoutPositionableElementWithActualSize;
-            var contentModelParentChildrenIndex = parentPane.Children.ToList().IndexOf(contentModel);
-
-            if (contentModel.FindParent<LayoutFloatingWindow>() == null)
-            {
-                ((ILayoutPreviousContainer)contentModel).PreviousContainer = parentPane;
-                contentModel.PreviousContainerIndex = contentModelParentChildrenIndex;
-            }
+    #endregion
 
-            parentPane.RemoveChildAt(contentModelParentChildrenIndex);
+    #region AutoHide window
+    internal void ShowAutoHideWindow( LayoutAnchorControl anchor )
+    {
+      _autoHideWindowManager.ShowAutoHideWindow( anchor );
+      //if (_autohideArea == null)
+      //    return;
 
-            double fwWidth = contentModel.FloatingWidth; 
-            double fwHeight = contentModel.FloatingHeight; 
+      //if (AutoHideWindow != null && AutoHideWindow.Model == anchor.Model)
+      //    return;
 
-            if (fwWidth == 0.0)
-                fwWidth = parentPaneAsPositionableElement.FloatingWidth;
-            if (fwHeight == 0.0)
-                fwHeight = parentPaneAsPositionableElement.FloatingHeight;
+      //Trace.WriteLine("ShowAutoHideWindow()");
 
-            if (fwWidth == 0.0)
-                fwWidth = parentPaneAsWithActualSize.ActualWidth;
-            if (fwHeight == 0.0)
-                fwHeight = parentPaneAsWithActualSize.ActualHeight;
+      //_currentAutohiddenAnchor = new WeakReference(anchor);
 
-            LayoutFloatingWindow fw;
-            LayoutFloatingWindowControl fwc;
-            if (contentModel is LayoutAnchorable)
-            {
-                var anchorableContent = contentModel as LayoutAnchorable;
-                fw = new LayoutAnchorableFloatingWindow()
-                {
-                    RootPanel = new LayoutAnchorablePaneGroup(
-                        new LayoutAnchorablePane(anchorableContent)
-                        {
-                            DockWidth = parentPaneAsPositionableElement.DockWidth,
-                            DockHeight = parentPaneAsPositionableElement.DockHeight,
-                            DockMinHeight = parentPaneAsPositionableElement.DockMinHeight,
-                            DockMinWidth = parentPaneAsPositionableElement.DockMinWidth,
-                            FloatingLeft = parentPaneAsPositionableElement.FloatingLeft,
-                            FloatingTop = parentPaneAsPositionableElement.FloatingTop,
-                            FloatingWidth = parentPaneAsPositionableElement.FloatingWidth,
-                            FloatingHeight = parentPaneAsPositionableElement.FloatingHeight,
-                        })
-                };
-
-                Layout.FloatingWindows.Add(fw);
-
-                fwc = new LayoutAnchorableFloatingWindowControl(
-                    fw as LayoutAnchorableFloatingWindow)
-                    {
-                        Width = fwWidth,
-                        Height = fwHeight,
-                        Left = contentModel.FloatingLeft,
-                        Top = contentModel.FloatingTop
-                    };
-            }
-            else
-            {
-                var anchorableDocument = contentModel as LayoutDocument;
-                fw = new LayoutDocumentFloatingWindow()
-                {
-                    RootDocument = anchorableDocument
-                };
+      //HideAutoHideWindow(anchor);
 
-                Layout.FloatingWindows.Add(fw);
+      //SetAutoHideWindow(new LayoutAutoHideWindowControl(anchor));
+      //AutoHideWindow.Show();
+    }
 
-                fwc = new LayoutDocumentFloatingWindowControl(
-                    fw as LayoutDocumentFloatingWindow)
-                {
-                    Width = fwWidth,
-                    Height = fwHeight,
-                    Left = contentModel.FloatingLeft,
-                    Top = contentModel.FloatingTop
-                };
-            }
+    internal void HideAutoHideWindow( LayoutAnchorControl anchor )
+    {
+      _autoHideWindowManager.HideAutoWindow( anchor );
+    }
 
 
-            //fwc.Owner = Window.GetWindow(this);
-            //fwc.SetParentToMainWindowOf(this);
+    void SetupAutoHideWindow()
+    {
+      if( _autoHideWindowManager != null )
+        _autoHideWindowManager.HideAutoWindow();
+      else
+        _autoHideWindowManager = new AutoHideWindowManager( this );
 
+      if( AutoHideWindow != null )
+        AutoHideWindow.Dispose();
 
-            _fwList.Add(fwc);
+      SetAutoHideWindow( new LayoutAutoHideWindowControl() );
+    }
 
-            Layout.CollectGarbage();
+    AutoHideWindowManager _autoHideWindowManager;
 
-            UpdateLayout();
+    FrameworkElement _autohideArea;
+    internal FrameworkElement GetAutoHideAreaElement()
+    {
+      return _autohideArea;
+    }
 
-            Dispatcher.BeginInvoke(new Action(() =>
-            {
-                if (startDrag)
-                    fwc.AttachDrag();
-                fwc.Show();
-            }), DispatcherPriority.Send);
-        }
+    #region AutoHideWindow
 
-        internal void StartDraggingFloatingWindowForPane(LayoutAnchorablePane paneModel)
-        {
-            if (paneModel.Children.Any(c => !c.CanFloat))
-                return;
-            var paneAsPositionableElement = paneModel as ILayoutPositionableElement;
-            var paneAsWithActualSize = paneModel as ILayoutPositionableElementWithActualSize;
+    /// <summary>
+    /// AutoHideWindow Read-Only Dependency Property
+    /// </summary>
+    private static readonly DependencyPropertyKey AutoHideWindowPropertyKey
+        = DependencyProperty.RegisterReadOnly( "AutoHideWindow", typeof( LayoutAutoHideWindowControl ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( LayoutAutoHideWindowControl )null,
+                new PropertyChangedCallback( OnAutoHideWindowChanged ) ) );
 
-            double fwWidth = paneAsPositionableElement.FloatingWidth;
-            double fwHeight = paneAsPositionableElement.FloatingHeight;
-            double fwLeft = paneAsPositionableElement.FloatingLeft;
-            double fwTop = paneAsPositionableElement.FloatingTop;
+    public static readonly DependencyProperty AutoHideWindowProperty
+        = AutoHideWindowPropertyKey.DependencyProperty;
 
+    /// <summary>
+    /// Gets the AutoHideWindow property.  This dependency property 
+    /// indicates the currently shown autohide window.
+    /// </summary>
+    public LayoutAutoHideWindowControl AutoHideWindow
+    {
+      get
+      {
+        return ( LayoutAutoHideWindowControl )GetValue( AutoHideWindowProperty );
+      }
+    }
 
+    /// <summary>
+    /// Provides a secure method for setting the AutoHideWindow property.  
+    /// This dependency property indicates the currently shown autohide window.
+    /// </summary>
+    /// <param name="value">The new value for the property.</param>
+    protected void SetAutoHideWindow( LayoutAutoHideWindowControl value )
+    {
+      SetValue( AutoHideWindowPropertyKey, value );
+    }
 
-            if (fwWidth == 0.0)
-                fwWidth = paneAsWithActualSize.ActualWidth;
-            if (fwHeight == 0.0)
-                fwHeight = paneAsWithActualSize.ActualHeight;
+    /// <summary>
+    /// Handles changes to the AutoHideWindow property.
+    /// </summary>
+    private static void OnAutoHideWindowChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAutoHideWindowChanged( e );
+    }
 
-            var destPane = new LayoutAnchorablePane()
-            {
-                DockWidth = paneAsPositionableElement.DockWidth,
-                DockHeight = paneAsPositionableElement.DockHeight,
-                DockMinHeight = paneAsPositionableElement.DockMinHeight,
-                DockMinWidth = paneAsPositionableElement.DockMinWidth,
-                FloatingLeft = paneAsPositionableElement.FloatingLeft,
-                FloatingTop = paneAsPositionableElement.FloatingTop,
-                FloatingWidth = paneAsPositionableElement.FloatingWidth,
-                FloatingHeight = paneAsPositionableElement.FloatingHeight,
-            };
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AutoHideWindow property.
+    /// </summary>
+    protected virtual void OnAutoHideWindowChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.OldValue != null )
+        InternalRemoveLogicalChild( e.OldValue );
+      if( e.NewValue != null )
+        InternalAddLogicalChild( e.NewValue );
 
-            bool savePreviousContainer = paneModel.FindParent<LayoutFloatingWindow>() == null;
-            int currentSelectedContentIndex = paneModel.SelectedContentIndex;
-            while (paneModel.Children.Count > 0)
-            {
-                var contentModel = paneModel.Children[paneModel.Children.Count - 1] as LayoutAnchorable;
+    }
 
-                if (savePreviousContainer)
-                {
-                    var contentModelAsPreviousContainer = contentModel as ILayoutPreviousContainer;
-                    contentModelAsPreviousContainer.PreviousContainer = paneModel;
-                    contentModel.PreviousContainerIndex = paneModel.Children.Count - 1;
-                }
+    #endregion
+
+
+
+    #endregion
+    // #region AutoHide window
+    //WeakReference _currentAutohiddenAnchor = null;
+    //internal void ShowAutoHideWindow(LayoutAnchorControl anchor)
+    //{
+    //    if (_autohideArea == null)
+    //        return;
+
+    //    if (AutoHideWindow != null && AutoHideWindow.Model == anchor.Model)
+    //        return;
+
+    //    Trace.WriteLine("ShowAutoHideWindow()");
+
+    //    _currentAutohiddenAnchor = new WeakReference(anchor);
+
+    //    HideAutoHideWindow(anchor);
+
+    //    SetAutoHideWindow(new LayoutAutoHideWindowControl(anchor));
+    //}
+
+    //internal void HideAutoHideWindow(LayoutAnchorControl anchor)
+    //{
+    //    if (AutoHideWindow != null)
+    //    {
+    //        if (anchor == _currentAutohiddenAnchor.GetValueOrDefault<LayoutAnchorControl>())
+    //        {
+    //            Trace.WriteLine("AutoHideWindow()");
+    //            AutoHideWindow.Dispose();
+    //            SetAutoHideWindow(null);
+    //        }
+    //    }
+    //}
+
+    //FrameworkElement _autohideArea;
+    //internal FrameworkElement GetAutoHideAreaElement()
+    //{
+    //    return _autohideArea;
+    //}
+
+    //void SetupAutoHideArea()
+    //{
+    //    _autohideArea = GetTemplateChild("PART_AutoHideArea") as FrameworkElement;
+    //}
+
+    // #region AutoHideWindow
+
+    ///// <summary>
+    ///// AutoHideWindow Read-Only Dependency Property
+    ///// </summary>
+    //private static readonly DependencyPropertyKey AutoHideWindowPropertyKey
+    //    = DependencyProperty.RegisterReadOnly("AutoHideWindow", typeof(LayoutAutoHideWindowControl), typeof(DockingManager),
+    //        new FrameworkPropertyMetadata((LayoutAutoHideWindowControl)null,
+    //            new PropertyChangedCallback(OnAutoHideWindowChanged)));
+
+    //public static readonly DependencyProperty AutoHideWindowProperty
+    //    = AutoHideWindowPropertyKey.DependencyProperty;
+
+    ///// <summary>
+    ///// Gets the AutoHideWindow property.  This dependency property 
+    ///// indicates the currently shown autohide window.
+    ///// </summary>
+    //public LayoutAutoHideWindowControl AutoHideWindow
+    //{
+    //    get { return (LayoutAutoHideWindowControl)GetValue(AutoHideWindowProperty); }
+    //}
+
+    ///// <summary>
+    ///// Provides a secure method for setting the AutoHideWindow property.  
+    ///// This dependency property indicates the currently shown autohide window.
+    ///// </summary>
+    ///// <param name="value">The new value for the property.</param>
+    //protected void SetAutoHideWindow(LayoutAutoHideWindowControl value)
+    //{
+    //    SetValue(AutoHideWindowPropertyKey, value);
+    //}
+
+    ///// <summary>
+    ///// Handles changes to the AutoHideWindow property.
+    ///// </summary>
+    //private static void OnAutoHideWindowChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    //{
+    //    ((DockingManager)d).OnAutoHideWindowChanged(e);
+    //}
+
+    ///// <summary>
+    ///// Provides derived classes an opportunity to handle changes to the AutoHideWindow property.
+    ///// </summary>
+    //protected virtual void OnAutoHideWindowChanged(DependencyPropertyChangedEventArgs e)
+    //{
+    //    if (e.OldValue != null)
+    //        ((ILogicalChildrenContainer)this).InternalRemoveLogicalChild(e.OldValue);
+    //    if (e.NewValue != null)
+    //        ((ILogicalChildrenContainer)this).InternalAddLogicalChild(e.NewValue);
+    //}
+
+    // #endregion
+
+
+
+    // #endregion
+
+    #region Floating Windows
+    List<LayoutFloatingWindowControl> _fwList = new List<LayoutFloatingWindowControl>();
+
+    internal void StartDraggingFloatingWindowForContent( LayoutContent contentModel, bool startDrag = true )
+    {
+      if( !contentModel.CanFloat )
+        return;
+      var contentModelAsAnchorable = contentModel as LayoutAnchorable;
+      if( contentModelAsAnchorable != null &&
+          contentModelAsAnchorable.IsAutoHidden )
+        contentModelAsAnchorable.ToggleAutoHide();
+
+      var parentPane = contentModel.Parent as ILayoutPane;
+      var parentPaneAsPositionableElement = contentModel.Parent as ILayoutPositionableElement;
+      var parentPaneAsWithActualSize = contentModel.Parent as ILayoutPositionableElementWithActualSize;
+      var contentModelParentChildrenIndex = parentPane.Children.ToList().IndexOf( contentModel );
+
+      if( contentModel.FindParent<LayoutFloatingWindow>() == null )
+      {
+        ( ( ILayoutPreviousContainer )contentModel ).PreviousContainer = parentPane;
+        contentModel.PreviousContainerIndex = contentModelParentChildrenIndex;
+      }
 
-                paneModel.RemoveChildAt(paneModel.Children.Count - 1);
-                destPane.Children.Insert(0, contentModel);
-            }
+      parentPane.RemoveChildAt( contentModelParentChildrenIndex );
 
-            if (destPane.Children.Count > 0)
-            {
-                destPane.SelectedContentIndex = currentSelectedContentIndex;
-            }
+      double fwWidth = contentModel.FloatingWidth;
+      double fwHeight = contentModel.FloatingHeight;
 
+      if( fwWidth == 0.0 )
+        fwWidth = parentPaneAsPositionableElement.FloatingWidth;
+      if( fwHeight == 0.0 )
+        fwHeight = parentPaneAsPositionableElement.FloatingHeight;
 
-            LayoutFloatingWindow fw;
-            LayoutFloatingWindowControl fwc;
-            fw = new LayoutAnchorableFloatingWindow()
-            {
-                RootPanel = new LayoutAnchorablePaneGroup(
-                    destPane) 
-                    {
-                        DockHeight = destPane.DockHeight,
-                        DockWidth = destPane.DockWidth,
-                        DockMinHeight = destPane.DockMinHeight,
-                        DockMinWidth = destPane.DockMinWidth,
-                    }
-            };
+      if( fwWidth == 0.0 )
+        fwWidth = parentPaneAsWithActualSize.ActualWidth + 10;      //10 includes BorderThickness and Margins inside LayoutDocumentFloatingWindowControl.
+      if( fwHeight == 0.0 )
+        fwHeight = parentPaneAsWithActualSize.ActualHeight + 10;    //10 includes BorderThickness and Margins inside LayoutDocumentFloatingWindowControl.
 
-            Layout.FloatingWindows.Add(fw);
+      LayoutFloatingWindow fw;
+      LayoutFloatingWindowControl fwc;
+      if( contentModel is LayoutAnchorable )
+      {
+        var anchorableContent = contentModel as LayoutAnchorable;
+        fw = new LayoutAnchorableFloatingWindow()
+        {
+          RootPanel = new LayoutAnchorablePaneGroup(
+                new LayoutAnchorablePane( anchorableContent )
+                {
+                  DockWidth = parentPaneAsPositionableElement.DockWidth,
+                  DockHeight = parentPaneAsPositionableElement.DockHeight,
+                  DockMinHeight = parentPaneAsPositionableElement.DockMinHeight,
+                  DockMinWidth = parentPaneAsPositionableElement.DockMinWidth,
+                  FloatingLeft = parentPaneAsPositionableElement.FloatingLeft,
+                  FloatingTop = parentPaneAsPositionableElement.FloatingTop,
+                  FloatingWidth = parentPaneAsPositionableElement.FloatingWidth,
+                  FloatingHeight = parentPaneAsPositionableElement.FloatingHeight,
+                } )
+        };
+
+        Layout.FloatingWindows.Add( fw );
+
+        fwc = new LayoutAnchorableFloatingWindowControl(
+            fw as LayoutAnchorableFloatingWindow )
+        {
+          Width = fwWidth,
+          Height = fwHeight,
+          Left = contentModel.FloatingLeft,
+          Top = contentModel.FloatingTop
+        };
+      }
+      else
+      {
+        var anchorableDocument = contentModel as LayoutDocument;
+        fw = new LayoutDocumentFloatingWindow()
+        {
+          RootDocument = anchorableDocument
+        };
 
-            fwc = new LayoutAnchorableFloatingWindowControl(
-                fw as LayoutAnchorableFloatingWindow)
-            {
-                Width = fwWidth,
-                Height = fwHeight
-            };
+        Layout.FloatingWindows.Add( fw );
 
+        fwc = new LayoutDocumentFloatingWindowControl(
+            fw as LayoutDocumentFloatingWindow )
+        {
+          Width = fwWidth,
+          Height = fwHeight,
+          Left = contentModel.FloatingLeft,
+          Top = contentModel.FloatingTop
+        };
+      }
 
 
-            //fwc.Owner = Window.GetWindow(this);
-            //fwc.SetParentToMainWindowOf(this);
+      //fwc.Owner = Window.GetWindow(this);
+      //fwc.SetParentToMainWindowOf(this);
 
 
-            _fwList.Add(fwc);
+      _fwList.Add( fwc );
 
-            Layout.CollectGarbage();
+      Layout.CollectGarbage();
 
-            InvalidateArrange();
+      UpdateLayout();
 
+      Dispatcher.BeginInvoke( new Action( () =>
+        {
+          if( startDrag )
             fwc.AttachDrag();
-            fwc.Show(); 
+          fwc.Show();
+        } ), DispatcherPriority.Send );
+    }
 
-        }
+    internal void StartDraggingFloatingWindowForPane( LayoutAnchorablePane paneModel )
+    {
+      if( paneModel.Children.Any( c => !c.CanFloat ) )
+        return;
+      var paneAsPositionableElement = paneModel as ILayoutPositionableElement;
+      var paneAsWithActualSize = paneModel as ILayoutPositionableElementWithActualSize;
+
+      double fwWidth = paneAsPositionableElement.FloatingWidth;
+      double fwHeight = paneAsPositionableElement.FloatingHeight;
+      double fwLeft = paneAsPositionableElement.FloatingLeft;
+      double fwTop = paneAsPositionableElement.FloatingTop;
+
+      if( fwWidth == 0.0 )
+        fwWidth = paneAsWithActualSize.ActualWidth + 10;       //10 includes BorderThickness and Margins inside LayoutAnchorableFloatingWindowControl.
+      if( fwHeight == 0.0 )
+        fwHeight = paneAsWithActualSize.ActualHeight + 10;   //10 includes BorderThickness and Margins inside LayoutAnchorableFloatingWindowControl.
+
+      var destPane = new LayoutAnchorablePane()
+      {
+        DockWidth = paneAsPositionableElement.DockWidth,
+        DockHeight = paneAsPositionableElement.DockHeight,
+        DockMinHeight = paneAsPositionableElement.DockMinHeight,
+        DockMinWidth = paneAsPositionableElement.DockMinWidth,
+        FloatingLeft = paneAsPositionableElement.FloatingLeft,
+        FloatingTop = paneAsPositionableElement.FloatingTop,
+        FloatingWidth = paneAsPositionableElement.FloatingWidth,
+        FloatingHeight = paneAsPositionableElement.FloatingHeight,
+      };
+
+      bool savePreviousContainer = paneModel.FindParent<LayoutFloatingWindow>() == null;
+      int currentSelectedContentIndex = paneModel.SelectedContentIndex;
+      while( paneModel.Children.Count > 0 )
+      {
+        var contentModel = paneModel.Children[ paneModel.Children.Count - 1 ] as LayoutAnchorable;
 
-        internal IEnumerable<LayoutFloatingWindowControl> GetFloatingWindowsByZOrder()
+        if( savePreviousContainer )
         {
-            var parentWindow = Window.GetWindow(this);
-
-            if (parentWindow == null)
-                yield break;
+          var contentModelAsPreviousContainer = contentModel as ILayoutPreviousContainer;
+          contentModelAsPreviousContainer.PreviousContainer = paneModel;
+          contentModel.PreviousContainerIndex = paneModel.Children.Count - 1;
+        }
 
-            IntPtr windowParentHanlde = new WindowInteropHelper(parentWindow).Handle;
+        paneModel.RemoveChildAt( paneModel.Children.Count - 1 );
+        destPane.Children.Insert( 0, contentModel );
+      }
 
-            IntPtr currentHandle = Win32Helper.GetWindow(windowParentHanlde, (uint)Win32Helper.GetWindow_Cmd.GW_HWNDFIRST);
-            while (currentHandle != IntPtr.Zero)
-            {
-                LayoutFloatingWindowControl ctrl = _fwList.FirstOrDefault(fw => new WindowInteropHelper(fw).Handle == currentHandle);
-                if (ctrl != null && ctrl.Model.Root.Manager == this)
-                    yield return ctrl;
+      if( destPane.Children.Count > 0 )
+      {
+        destPane.SelectedContentIndex = currentSelectedContentIndex;
+      }
 
-                currentHandle = Win32Helper.GetWindow(currentHandle, (uint)Win32Helper.GetWindow_Cmd.GW_HWNDNEXT);
-            }
-        }
 
-        internal void RemoveFloatingWindow(LayoutFloatingWindowControl floatingWindow)
+      LayoutFloatingWindow fw;
+      LayoutFloatingWindowControl fwc;
+      fw = new LayoutAnchorableFloatingWindow()
+      {
+        RootPanel = new LayoutAnchorablePaneGroup(
+              destPane )
         {
-            _fwList.Remove(floatingWindow);
+          DockHeight = destPane.DockHeight,
+          DockWidth = destPane.DockWidth,
+          DockMinHeight = destPane.DockMinHeight,
+          DockMinWidth = destPane.DockMinWidth,
         }
+      };
 
-        public IEnumerable<LayoutFloatingWindowControl> FloatingWindows
-        {
-            get { return _fwList; }
-        }
-        #endregion
+      Layout.FloatingWindows.Add( fw );
 
-        #region OverlayWindow
+      fwc = new LayoutAnchorableFloatingWindowControl(
+          fw as LayoutAnchorableFloatingWindow )
+      {
+        Width = fwWidth,
+        Height = fwHeight
+      };
 
-        bool IOverlayWindowHost.HitTest(Point dragPoint)
-        {
-            Rect detectionRect = new Rect(this.PointToScreenDPIWithoutFlowDirection(new Point()), this.TransformActualSizeToAncestor());
-            return detectionRect.Contains(dragPoint);
-        }
 
-        DockingManager IOverlayWindowHost.Manager
-        {
-            get { return this; }
-        }
 
-        OverlayWindow _overlayWindow = null;
-        void CreateOverlayWindow()
-        {
-            if (_overlayWindow == null)
-            {
-                _overlayWindow = new OverlayWindow(this);
-            }
-            Rect rectWindow = new Rect(this.PointToScreenDPIWithoutFlowDirection(new Point()), this.TransformActualSizeToAncestor());
-            _overlayWindow.Left = rectWindow.Left;
-            _overlayWindow.Top = rectWindow.Top;
-            _overlayWindow.Width = rectWindow.Width;
-            _overlayWindow.Height = rectWindow.Height;
-        }
+      //fwc.Owner = Window.GetWindow(this);
+      //fwc.SetParentToMainWindowOf(this);
 
-        void DestroyOverlayWindow()
-        {
-            if (_overlayWindow != null)
-            {
-                _overlayWindow.Close();
-                _overlayWindow = null;
-            }
-        }
 
-        IOverlayWindow IOverlayWindowHost.ShowOverlayWindow(LayoutFloatingWindowControl draggingWindow)
-        {
-            CreateOverlayWindow();
-            _overlayWindow.Owner = draggingWindow;
-            _overlayWindow.EnableDropTargets();
-            _overlayWindow.Show();
-            return _overlayWindow;
-        }
+      _fwList.Add( fwc );
 
-        void IOverlayWindowHost.HideOverlayWindow()
-        {
-            _areas = null;
-            _overlayWindow.Owner = null;
-            _overlayWindow.HideDropTargets();
-        }
+      Layout.CollectGarbage();
 
-        List<IDropArea> _areas = null;
+      InvalidateArrange();
 
-        IEnumerable<IDropArea> IOverlayWindowHost.GetDropAreas(LayoutFloatingWindowControl draggingWindow)
-        {
-            if (_areas != null)
-                return _areas;
+      fwc.AttachDrag();
+      fwc.Show();
 
-            bool isDraggingDocuments = draggingWindow.Model is LayoutDocumentFloatingWindow;
+    }
 
-            _areas = new List<IDropArea>();
+    internal IEnumerable<LayoutFloatingWindowControl> GetFloatingWindowsByZOrder()
+    {
+      var parentWindow = Window.GetWindow( this );
 
-            if (!isDraggingDocuments)
-            {
-                _areas.Add(new DropArea<DockingManager>(
-                    this,
-                    DropAreaType.DockingManager));
+      if( parentWindow == null )
+        yield break;
 
-                foreach (var areaHost in this.FindVisualChildren<LayoutAnchorablePaneControl>())
-                {
-                    if (areaHost.Model.Descendents().Any())
-                    {
-                        _areas.Add(new DropArea<LayoutAnchorablePaneControl>(
-                            areaHost,
-                            DropAreaType.AnchorablePane));
-                    }
-                }
-            }
+      IntPtr windowParentHanlde = new WindowInteropHelper( parentWindow ).Handle;
 
-            foreach (var areaHost in this.FindVisualChildren<LayoutDocumentPaneControl>())
-            {
-                _areas.Add(new DropArea<LayoutDocumentPaneControl>(
-                    areaHost,
-                    DropAreaType.DocumentPane));
-            }
+      IntPtr currentHandle = Win32Helper.GetWindow( windowParentHanlde, ( uint )Win32Helper.GetWindow_Cmd.GW_HWNDFIRST );
+      while( currentHandle != IntPtr.Zero )
+      {
+        LayoutFloatingWindowControl ctrl = _fwList.FirstOrDefault( fw => new WindowInteropHelper( fw ).Handle == currentHandle );
+        if( ctrl != null && ctrl.Model.Root.Manager == this )
+          yield return ctrl;
 
-            foreach (var areaHost in this.FindVisualChildren<LayoutDocumentPaneGroupControl>())
-            {
-                var documentGroupModel = areaHost.Model as LayoutDocumentPaneGroup;
-                if (documentGroupModel.Children.Where(c => c.IsVisible).Count() == 0)
-                {
-                    _areas.Add(new DropArea<LayoutDocumentPaneGroupControl>(
-                        areaHost,
-                        DropAreaType.DocumentPaneGroup));
-                }
-            }
+        currentHandle = Win32Helper.GetWindow( currentHandle, ( uint )Win32Helper.GetWindow_Cmd.GW_HWNDNEXT );
+      }
+    }
 
-            return _areas;
-        }
+    internal void RemoveFloatingWindow( LayoutFloatingWindowControl floatingWindow )
+    {
+      _fwList.Remove( floatingWindow );
+    }
 
-        protected override Size ArrangeOverride(Size arrangeBounds)
-        {
-            _areas = null;
-            return base.ArrangeOverride(arrangeBounds);
-        }
+    public IEnumerable<LayoutFloatingWindowControl> FloatingWindows
+    {
+      get
+      {
+        return _fwList;
+      }
+    }
+    #endregion
+
+    #region OverlayWindow
+
+    bool IOverlayWindowHost.HitTest( Point dragPoint )
+    {
+      Rect detectionRect = new Rect( this.PointToScreenDPIWithoutFlowDirection( new Point() ), this.TransformActualSizeToAncestor() );
+      return detectionRect.Contains( dragPoint );
+    }
 
-        #endregion
+    DockingManager IOverlayWindowHost.Manager
+    {
+      get
+      {
+        return this;
+      }
+    }
 
-        #region LayoutDocument & LayoutAnchorable Templates
+    OverlayWindow _overlayWindow = null;
+    void CreateOverlayWindow()
+    {
+      if( _overlayWindow == null )
+      {
+        _overlayWindow = new OverlayWindow( this );
+      }
+      Rect rectWindow = new Rect( this.PointToScreenDPIWithoutFlowDirection( new Point() ), this.TransformActualSizeToAncestor() );
+      _overlayWindow.Left = rectWindow.Left;
+      _overlayWindow.Top = rectWindow.Top;
+      _overlayWindow.Width = rectWindow.Width;
+      _overlayWindow.Height = rectWindow.Height;
+    }
 
-        #region LayoutItemTemplate
+    void DestroyOverlayWindow()
+    {
+      if( _overlayWindow != null )
+      {
+        _overlayWindow.Close();
+        _overlayWindow = null;
+      }
+    }
 
-        /// <summary>
-        /// LayoutItemTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutItemTemplateProperty =
-            DependencyProperty.Register("LayoutItemTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnLayoutItemTemplateChanged)));
+    IOverlayWindow IOverlayWindowHost.ShowOverlayWindow( LayoutFloatingWindowControl draggingWindow )
+    {
+      CreateOverlayWindow();
+      _overlayWindow.Owner = draggingWindow;
+      _overlayWindow.EnableDropTargets();
+      _overlayWindow.Show();
+      return _overlayWindow;
+    }
 
-        /// <summary>
-        /// Gets or sets the AnchorableTemplate property.  This dependency property 
-        /// indicates the template to use to render anchorable and document contents.
-        /// </summary>
-        public DataTemplate LayoutItemTemplate
-        {
-            get { return (DataTemplate)GetValue(LayoutItemTemplateProperty); }
-            set { SetValue(LayoutItemTemplateProperty, value); }
-        }
+    void IOverlayWindowHost.HideOverlayWindow()
+    {
+      _areas = null;
+      _overlayWindow.Owner = null;
+      _overlayWindow.HideDropTargets();
+    }
 
-        /// <summary>
-        /// Handles changes to the AnchorableTemplate property.
-        /// </summary>
-        private static void OnLayoutItemTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLayoutItemTemplateChanged(e);
-        }
+    List<IDropArea> _areas = null;
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorableTemplate property.
-        /// </summary>
-        protected virtual void OnLayoutItemTemplateChanged(DependencyPropertyChangedEventArgs e)
-        {
-        }
+    IEnumerable<IDropArea> IOverlayWindowHost.GetDropAreas( LayoutFloatingWindowControl draggingWindow )
+    {
+      if( _areas != null )
+        return _areas;
 
-        #endregion
+      bool isDraggingDocuments = draggingWindow.Model is LayoutDocumentFloatingWindow;
 
-        #region LayoutItemTemplateSelector
+      _areas = new List<IDropArea>();
 
-        /// <summary>
-        /// LayoutItemTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutItemTemplateSelectorProperty =
-            DependencyProperty.Register("LayoutItemTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnLayoutItemTemplateSelectorChanged)));
+      if( !isDraggingDocuments )
+      {
+        _areas.Add( new DropArea<DockingManager>(
+            this,
+            DropAreaType.DockingManager ) );
 
-        /// <summary>
-        /// Gets or sets the LayoutItemTemplateSelector property.  This dependency property 
-        /// indicates selector object to use for anchorable templates.
-        /// </summary>
-        public DataTemplateSelector LayoutItemTemplateSelector
+        foreach( var areaHost in this.FindVisualChildren<LayoutAnchorablePaneControl>() )
         {
-            get { return (DataTemplateSelector)GetValue(LayoutItemTemplateSelectorProperty); }
-            set { SetValue(LayoutItemTemplateSelectorProperty, value); }
+          if( areaHost.Model.Descendents().Any() )
+          {
+            _areas.Add( new DropArea<LayoutAnchorablePaneControl>(
+                areaHost,
+                DropAreaType.AnchorablePane ) );
+          }
         }
+      }
 
-        /// <summary>
-        /// Handles changes to the LayoutItemTemplateSelector property.
-        /// </summary>
-        private static void OnLayoutItemTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLayoutItemTemplateSelectorChanged(e);
-        }
+      foreach( var areaHost in this.FindVisualChildren<LayoutDocumentPaneControl>() )
+      {
+        _areas.Add( new DropArea<LayoutDocumentPaneControl>(
+            areaHost,
+            DropAreaType.DocumentPane ) );
+      }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the LayoutItemTemplateSelector property.
-        /// </summary>
-        protected virtual void OnLayoutItemTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
+      foreach( var areaHost in this.FindVisualChildren<LayoutDocumentPaneGroupControl>() )
+      {
+        var documentGroupModel = areaHost.Model as LayoutDocumentPaneGroup;
+        if( documentGroupModel.Children.Where( c => c.IsVisible ).Count() == 0 )
         {
+          _areas.Add( new DropArea<LayoutDocumentPaneGroupControl>(
+              areaHost,
+              DropAreaType.DocumentPaneGroup ) );
         }
+      }
 
-        #endregion
+      return _areas;
+    }
 
+    protected override Size ArrangeOverride( Size arrangeBounds )
+    {
+      _areas = null;
+      return base.ArrangeOverride( arrangeBounds );
+    }
 
-        #endregion
+    #endregion
 
-        #region DocumentsSource
+    #region LayoutDocument & LayoutAnchorable Templates
 
-        /// <summary>
-        /// DocumentsSource Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentsSourceProperty =
-            DependencyProperty.Register("DocumentsSource", typeof(IEnumerable), typeof(DockingManager),
-                new FrameworkPropertyMetadata((IEnumerable)null,
-                    new PropertyChangedCallback(OnDocumentsSourceChanged)));
+    #region LayoutItemTemplate
 
-        /// <summary>
-        /// Gets or sets the DocumentsSource property.  This dependency property 
-        /// indicates the source collection of documents.
-        /// </summary>
-        public IEnumerable DocumentsSource
-        {
-            get { return (IEnumerable)GetValue(DocumentsSourceProperty); }
-            set { SetValue(DocumentsSourceProperty, value); }
-        }
+    /// <summary>
+    /// LayoutItemTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutItemTemplateProperty =
+        DependencyProperty.Register( "LayoutItemTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnLayoutItemTemplateChanged ) ) );
 
-        /// <summary>
-        /// Handles changes to the DocumentsSource property.
-        /// </summary>
-        private static void OnDocumentsSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentsSourceChanged(e);
-        }
+    /// <summary>
+    /// Gets or sets the AnchorableTemplate property.  This dependency property 
+    /// indicates the template to use to render anchorable and document contents.
+    /// </summary>
+    public DataTemplate LayoutItemTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( LayoutItemTemplateProperty );
+      }
+      set
+      {
+        SetValue( LayoutItemTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentsSource property.
-        /// </summary>
-        protected virtual void OnDocumentsSourceChanged(DependencyPropertyChangedEventArgs e)
-        {
-            DetachDocumentsSource(Layout, e.OldValue as IEnumerable);
-            AttachDocumentsSource(Layout, e.NewValue as IEnumerable);
-        }
+    /// <summary>
+    /// Handles changes to the AnchorableTemplate property.
+    /// </summary>
+    private static void OnLayoutItemTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutItemTemplateChanged( e );
+    }
 
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorableTemplate property.
+    /// </summary>
+    protected virtual void OnLayoutItemTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        void AttachDocumentsSource(LayoutRoot layout, IEnumerable documentsSource)
-        {
-            if (documentsSource == null)
-                return;
+    #endregion
 
-            if (layout == null)
-                return;
+    #region LayoutItemTemplateSelector
 
-            //if (layout.Descendents().OfType<LayoutDocument>().Any())
-            //    throw new InvalidOperationException("Unable to set the DocumentsSource property if LayoutDocument objects are already present in the model");
-            var documentsImported = layout.Descendents().OfType<LayoutDocument>().Select(d => d.Content).ToArray();
-            var documents = documentsSource as IEnumerable;
-            var listOfDocumentsToImport = new List<object>(documents.OfType<object>());
+    /// <summary>
+    /// LayoutItemTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutItemTemplateSelectorProperty =
+        DependencyProperty.Register( "LayoutItemTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnLayoutItemTemplateSelectorChanged ) ) );
 
-            foreach (var document in listOfDocumentsToImport.ToArray())
-            {
-                if (documentsImported.Contains(document))
-                    listOfDocumentsToImport.Remove(document);
-            }
+    /// <summary>
+    /// Gets or sets the LayoutItemTemplateSelector property.  This dependency property 
+    /// indicates selector object to use for anchorable templates.
+    /// </summary>
+    public DataTemplateSelector LayoutItemTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( LayoutItemTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( LayoutItemTemplateSelectorProperty, value );
+      }
+    }
 
+    /// <summary>
+    /// Handles changes to the LayoutItemTemplateSelector property.
+    /// </summary>
+    private static void OnLayoutItemTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutItemTemplateSelectorChanged( e );
+    }
 
-            LayoutDocumentPane documentPane = null;
-            if (layout.LastFocusedDocument != null)
-            {
-                documentPane = layout.LastFocusedDocument.Parent as LayoutDocumentPane;
-            }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the LayoutItemTemplateSelector property.
+    /// </summary>
+    protected virtual void OnLayoutItemTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-            if (documentPane == null)
-            {
-                documentPane = layout.Descendents().OfType<LayoutDocumentPane>().FirstOrDefault();
-            }
+    #endregion
 
-            //if (documentPane == null)
-            //    throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
 
-            _suspendLayoutItemCreation = true;
-            foreach (var documentContentToImport in listOfDocumentsToImport)
-            {
+    #endregion
 
-                //documentPane.Children.Add(new LayoutDocument() { Content = documentToImport });
+    #region DocumentsSource
 
-                var documentToImport = new LayoutDocument()
-                {
-                    Content = documentContentToImport
-                };
+    /// <summary>
+    /// DocumentsSource Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentsSourceProperty =
+        DependencyProperty.Register( "DocumentsSource", typeof( IEnumerable ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( IEnumerable )null,
+                new PropertyChangedCallback( OnDocumentsSourceChanged ) ) );
 
-                bool added = false;
-                if (LayoutUpdateStrategy != null)
-                {
-                    added = LayoutUpdateStrategy.BeforeInsertDocument(layout, documentToImport, documentPane);
-                }
+    /// <summary>
+    /// Gets or sets the DocumentsSource property.  This dependency property 
+    /// indicates the source collection of documents.
+    /// </summary>
+    public IEnumerable DocumentsSource
+    {
+      get
+      {
+        return ( IEnumerable )GetValue( DocumentsSourceProperty );
+      }
+      set
+      {
+        SetValue( DocumentsSourceProperty, value );
+      }
+    }
 
-                if (!added)
-                {
-                    if (documentPane == null)
-                        throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
+    /// <summary>
+    /// Handles changes to the DocumentsSource property.
+    /// </summary>
+    private static void OnDocumentsSourceChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentsSourceChanged( e );
+    }
 
-                    documentPane.Children.Add(documentToImport);
-                    added = true;
-                }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentsSource property.
+    /// </summary>
+    protected virtual void OnDocumentsSourceChanged( DependencyPropertyChangedEventArgs e )
+    {
+      DetachDocumentsSource( Layout, e.OldValue as IEnumerable );
+      AttachDocumentsSource( Layout, e.NewValue as IEnumerable );
+    }
 
-                if (LayoutUpdateStrategy != null)
-                    LayoutUpdateStrategy.AfterInsertDocument(layout, documentToImport);
 
+    void AttachDocumentsSource( LayoutRoot layout, IEnumerable documentsSource )
+    {
+      if( documentsSource == null )
+        return;
 
-                CreateDocumentLayoutItem(documentToImport);
+      if( layout == null )
+        return;
 
-            }
-            _suspendLayoutItemCreation = false;
+      //if (layout.Descendents().OfType<LayoutDocument>().Any())
+      //    throw new InvalidOperationException("Unable to set the DocumentsSource property if LayoutDocument objects are already present in the model");
+      var documentsImported = layout.Descendents().OfType<LayoutDocument>().Select( d => d.Content ).ToArray();
+      var documents = documentsSource as IEnumerable;
+      var listOfDocumentsToImport = new List<object>( documents.OfType<object>() );
 
+      foreach( var document in listOfDocumentsToImport.ToArray() )
+      {
+        if( documentsImported.Contains( document ) )
+          listOfDocumentsToImport.Remove( document );
+      }
 
-            var documentsSourceAsNotifier = documentsSource as INotifyCollectionChanged;
-            if (documentsSourceAsNotifier != null)
-                documentsSourceAsNotifier.CollectionChanged += new NotifyCollectionChangedEventHandler(documentsSourceElementsChanged);
-        }
 
-        internal bool SuspendDocumentsSourceBinding = false;
+      LayoutDocumentPane documentPane = null;
+      if( layout.LastFocusedDocument != null )
+      {
+        documentPane = layout.LastFocusedDocument.Parent as LayoutDocumentPane;
+      }
 
-        void documentsSourceElementsChanged(object sender, NotifyCollectionChangedEventArgs e)
-        {
-            if (Layout == null)
-                return;
+      if( documentPane == null )
+      {
+        documentPane = layout.Descendents().OfType<LayoutDocumentPane>().FirstOrDefault();
+      }
 
-            //When deserializing documents are created automatically by the deserializer
-            if (SuspendDocumentsSourceBinding)
-                return;
+      //if (documentPane == null)
+      //    throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
 
-            //handle remove
-            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
-            {
-                if (e.OldItems != null)
-                {
-                    var documentsToRemove = Layout.Descendents().OfType<LayoutDocument>().Where(d => e.OldItems.Contains(d.Content)).ToArray();
-                    foreach (var documentToRemove in documentsToRemove)
-                    {
-                        (documentToRemove.Parent as ILayoutContainer).RemoveChild(
-                            documentToRemove);
-                        this.RemoveViewFromLogicalChild( documentToRemove );
-                    }
-                }
-            }
+      _suspendLayoutItemCreation = true;
+      foreach( var documentContentToImport in listOfDocumentsToImport )
+      {
 
-            //handle add
-            if (e.NewItems != null &&
-                (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                if (e.NewItems != null)
-                {
-                    LayoutDocumentPane documentPane = null;
-                    if (Layout.LastFocusedDocument != null)
-                    {
-                        documentPane = Layout.LastFocusedDocument.Parent as LayoutDocumentPane;
-                    }
+        //documentPane.Children.Add(new LayoutDocument() { Content = documentToImport });
 
-                    if (documentPane == null)
-                    {
-                        documentPane = Layout.Descendents().OfType<LayoutDocumentPane>().FirstOrDefault();
-                    }
+        var documentToImport = new LayoutDocument()
+        {
+          Content = documentContentToImport
+        };
 
-                    //if (documentPane == null)
-                    //    throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
+        bool added = false;
+        if( LayoutUpdateStrategy != null )
+        {
+          added = LayoutUpdateStrategy.BeforeInsertDocument( layout, documentToImport, documentPane );
+        }
 
-                    _suspendLayoutItemCreation = true;
+        if( !added )
+        {
+          if( documentPane == null )
+            throw new InvalidOperationException( "Layout must contains at least one LayoutDocumentPane in order to host documents" );
 
-                    foreach (var documentContentToImport in e.NewItems)
-                    {
-                        var documentToImport = new LayoutDocument()
-                        {
-                            Content = documentContentToImport
-                        };
+          documentPane.Children.Add( documentToImport );
+          added = true;
+        }
 
-                        bool added = false;
-                        if (LayoutUpdateStrategy != null)
-                        {
-                            added = LayoutUpdateStrategy.BeforeInsertDocument(Layout, documentToImport, documentPane);
-                        }
+        if( LayoutUpdateStrategy != null )
+          LayoutUpdateStrategy.AfterInsertDocument( layout, documentToImport );
 
-                        if (!added)
-                        {
-                            if (documentPane == null)
-                                throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
 
-                            documentPane.Children.Add(documentToImport);
-                            added = true;
-                        }
+        CreateDocumentLayoutItem( documentToImport );
 
-                        if (LayoutUpdateStrategy != null)
-                        {
-                            LayoutUpdateStrategy.AfterInsertDocument(Layout, documentToImport);
-                        }
+      }
+      _suspendLayoutItemCreation = false;
 
 
-                        var root = documentToImport.Root;
+      var documentsSourceAsNotifier = documentsSource as INotifyCollectionChanged;
+      if( documentsSourceAsNotifier != null )
+        documentsSourceAsNotifier.CollectionChanged += new NotifyCollectionChangedEventHandler( documentsSourceElementsChanged );
+    }
 
-                        if (root != null && root.Manager == this)
-                        {
-                            CreateDocumentLayoutItem(documentToImport);
-                        }
-                    }
-                    _suspendLayoutItemCreation = false;
-                }
-            }
+    internal bool SuspendDocumentsSourceBinding = false;
 
-            if (e.Action == NotifyCollectionChangedAction.Reset)
-            {
-                //NOTE: I'm going to clear every document present in layout but
-                //some documents may have been added directly to the layout, for now I clear them too
-                var documentsToRemove = Layout.Descendents().OfType<LayoutDocument>().ToArray();
-                foreach (var documentToRemove in documentsToRemove)
-                {
-                    (documentToRemove.Parent as ILayoutContainer).RemoveChild(
-                        documentToRemove);
-                    this.RemoveViewFromLogicalChild( documentToRemove );
-                }
-            }
+    void documentsSourceElementsChanged( object sender, NotifyCollectionChangedEventArgs e )
+    {
+      if( Layout == null )
+        return;
 
-            if (Layout != null)
-            {
-                Layout.CollectGarbage();
-            }
-        }
+      //When deserializing documents are created automatically by the deserializer
+      if( SuspendDocumentsSourceBinding )
+        return;
 
-        void DetachDocumentsSource(LayoutRoot layout, IEnumerable documentsSource)
+      //handle remove
+      if( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace )
+      {
+        if( e.OldItems != null )
         {
-            if (documentsSource == null)
-                return;
-
-            if (layout == null)
-                return;
-
-            var documentsToRemove = layout.Descendents().OfType<LayoutDocument>()
-                .Where(d => documentsSource.Contains(d.Content)).ToArray();
+          var documentsToRemove = Layout.Descendents().OfType<LayoutDocument>().Where( d => e.OldItems.Contains( d.Content ) ).ToArray();
+          foreach( var documentToRemove in documentsToRemove )
+          {
+            ( documentToRemove.Parent as ILayoutContainer ).RemoveChild(
+                documentToRemove );
+            this.RemoveViewFromLogicalChild( documentToRemove );
+          }
+        }
+      }
 
-            foreach (var documentToRemove in documentsToRemove)
-            {
-                (documentToRemove.Parent as ILayoutContainer).RemoveChild(
-                    documentToRemove);
-                this.RemoveViewFromLogicalChild( documentToRemove );
-            }
+      //handle add
+      if( e.NewItems != null &&
+          ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        if( e.NewItems != null )
+        {
+          LayoutDocumentPane documentPane = null;
+          if( Layout.LastFocusedDocument != null )
+          {
+            documentPane = Layout.LastFocusedDocument.Parent as LayoutDocumentPane;
+          }
 
-            var documentsSourceAsNotifier = documentsSource as INotifyCollectionChanged;
-            if (documentsSourceAsNotifier != null)
-                documentsSourceAsNotifier.CollectionChanged -= new NotifyCollectionChangedEventHandler(documentsSourceElementsChanged);
-        }
+          if( documentPane == null )
+          {
+            documentPane = Layout.Descendents().OfType<LayoutDocumentPane>().FirstOrDefault();
+          }
 
+          //if (documentPane == null)
+          //    throw new InvalidOperationException("Layout must contains at least one LayoutDocumentPane in order to host documents");
 
-        #endregion
+          _suspendLayoutItemCreation = true;
 
-        #region DocumentCloseCommand
+          foreach( var documentContentToImport in e.NewItems )
+          {
+            var documentToImport = new LayoutDocument()
+            {
+              Content = documentContentToImport
+            };
 
-        internal void _ExecuteCloseCommand(LayoutDocument document)
-        {
-            if (DocumentClosing != null)
+            bool added = false;
+            if( LayoutUpdateStrategy != null )
             {
-                var evargs = new DocumentClosingEventArgs(document);
-                DocumentClosing(this, evargs);
-                if (evargs.Cancel)
-                    return;
+              added = LayoutUpdateStrategy.BeforeInsertDocument( Layout, documentToImport, documentPane );
             }
 
-            if( document.CloseDocument() )
+            if( !added )
             {
-              this.RemoveViewFromLogicalChild( document );
+              if( documentPane == null )
+                throw new InvalidOperationException( "Layout must contains at least one LayoutDocumentPane in order to host documents" );
 
-              if( DocumentClosed != null )
-              {
-                var evargs = new DocumentClosedEventArgs( document );
-                DocumentClosed( this, evargs );
-              }
+              documentPane.Children.Add( documentToImport );
+              added = true;
             }
-        }
-
-        /// <summary>
-        /// Event fired when a document is about to be closed
-        /// </summary>
-        /// <remarks>Subscribers have the opportuniy to cancel the operation.</remarks>
-        public event EventHandler<DocumentClosingEventArgs> DocumentClosing;
-
-        /// <summary>
-        /// Event fired after a document is closed
-        /// </summary>
-        public event EventHandler<DocumentClosedEventArgs> DocumentClosed;
 
+            if( LayoutUpdateStrategy != null )
+            {
+              LayoutUpdateStrategy.AfterInsertDocument( Layout, documentToImport );
+            }
 
 
-        #endregion
+            var root = documentToImport.Root;
 
-        internal void _ExecuteCloseAllButThisCommand(LayoutContent contentSelected)
-        {
-            foreach (var contentToClose in Layout.Descendents().OfType<LayoutContent>().Where(d => d != contentSelected && (d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow)).ToArray())
+            if( root != null && root.Manager == this )
             {
-              this.Close( contentToClose );              
+              CreateDocumentLayoutItem( documentToImport );
             }
+          }
+          _suspendLayoutItemCreation = false;
         }
+      }
 
-        internal void _ExecuteCloseAllCommand( LayoutContent contentSelected )
+      if( e.Action == NotifyCollectionChangedAction.Reset )
+      {
+        //NOTE: I'm going to clear every document present in layout but
+        //some documents may have been added directly to the layout, for now I clear them too
+        var documentsToRemove = Layout.Descendents().OfType<LayoutDocument>().ToArray();
+        foreach( var documentToRemove in documentsToRemove )
         {
-          foreach( var contentToClose in Layout.Descendents().OfType<LayoutContent>().Where( d => ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).ToArray() )
-          {
-            this.Close( contentToClose );
-          }
+          ( documentToRemove.Parent as ILayoutContainer ).RemoveChild(
+              documentToRemove );
+          this.RemoveViewFromLogicalChild( documentToRemove );
         }
+      }
 
-        private void Close( LayoutContent contentToClose )
-        {
-          if( !contentToClose.CanClose )
-            return;
+      if( Layout != null )
+      {
+        Layout.CollectGarbage();
+      }
+    }
 
-          var layoutItem = GetLayoutItemFromModel( contentToClose );
-          if( layoutItem.CloseCommand != null )
-          {
-            if( layoutItem.CloseCommand.CanExecute( null ) )
-              layoutItem.CloseCommand.Execute( null );
-          }
-          else
-          {
-            if( contentToClose is LayoutDocument )
-              _ExecuteCloseCommand( contentToClose as LayoutDocument );
-            else if( contentToClose is LayoutAnchorable )
-              _ExecuteCloseCommand( contentToClose as LayoutAnchorable );
-          }
-        }
+    void DetachDocumentsSource( LayoutRoot layout, IEnumerable documentsSource )
+    {
+      if( documentsSource == null )
+        return;
 
-        #region DocumentContextMenu
+      if( layout == null )
+        return;
 
-        /// <summary>
-        /// DocumentContextMenu Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentContextMenuProperty =
-            DependencyProperty.Register("DocumentContextMenu", typeof(ContextMenu), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ContextMenu)null));
+      var documentsToRemove = layout.Descendents().OfType<LayoutDocument>()
+          .Where( d => documentsSource.Contains( d.Content ) ).ToArray();
 
-        /// <summary>
-        /// Gets or sets the DocumentContextMenu property.  This dependency property 
-        /// indicates context menu to show for documents.
-        /// </summary>
-        public ContextMenu DocumentContextMenu
-        {
-            get { return (ContextMenu)GetValue(DocumentContextMenuProperty); }
-            set { SetValue(DocumentContextMenuProperty, value); }
-        }
+      foreach( var documentToRemove in documentsToRemove )
+      {
+        ( documentToRemove.Parent as ILayoutContainer ).RemoveChild(
+            documentToRemove );
+        this.RemoveViewFromLogicalChild( documentToRemove );
+      }
 
-        #endregion
+      var documentsSourceAsNotifier = documentsSource as INotifyCollectionChanged;
+      if( documentsSourceAsNotifier != null )
+        documentsSourceAsNotifier.CollectionChanged -= new NotifyCollectionChangedEventHandler( documentsSourceElementsChanged );
+    }
 
-        #region AnchorablesSource
 
-        /// <summary>
-        /// AnchorablesSource Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorablesSourceProperty =
-            DependencyProperty.Register("AnchorablesSource", typeof(IEnumerable), typeof(DockingManager),
-                new FrameworkPropertyMetadata((IEnumerable)null,
-                    new PropertyChangedCallback(OnAnchorablesSourceChanged)));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the AnchorablesSource property.  This dependency property 
-        /// indicates source collection of anchorables.
-        /// </summary>
-        public IEnumerable AnchorablesSource
-        {
-            get { return (IEnumerable)GetValue(AnchorablesSourceProperty); }
-            set { SetValue(AnchorablesSourceProperty, value); }
-        }
+    #region DocumentCloseCommand
 
-        /// <summary>
-        /// Handles changes to the AnchorablesSource property.
-        /// </summary>
-        private static void OnAnchorablesSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnAnchorablesSourceChanged(e);
-        }
+    internal void _ExecuteCloseCommand( LayoutDocument document )
+    {
+      if( DocumentClosing != null )
+      {
+        var evargs = new DocumentClosingEventArgs( document );
+        DocumentClosing( this, evargs );
+        if( evargs.Cancel )
+          return;
+      }
+
+      if( document.CloseDocument() )
+      {
+        this.RemoveViewFromLogicalChild( document );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the AnchorablesSource property.
-        /// </summary>
-        protected virtual void OnAnchorablesSourceChanged(DependencyPropertyChangedEventArgs e)
+        if( DocumentClosed != null )
         {
-            DetachAnchorablesSource(Layout, e.OldValue as IEnumerable);
-            AttachAnchorablesSource(Layout, e.NewValue as IEnumerable);
+          var evargs = new DocumentClosedEventArgs( document );
+          DocumentClosed( this, evargs );
         }
+      }
+    }
 
-        void AttachAnchorablesSource(LayoutRoot layout, IEnumerable anchorablesSource)
-        {
-            if (anchorablesSource == null)
-                return;
+    /// <summary>
+    /// Event fired when a document is about to be closed
+    /// </summary>
+    /// <remarks>Subscribers have the opportuniy to cancel the operation.</remarks>
+    public event EventHandler<DocumentClosingEventArgs> DocumentClosing;
 
-            if (layout == null)
-                return;
+    /// <summary>
+    /// Event fired after a document is closed
+    /// </summary>
+    public event EventHandler<DocumentClosedEventArgs> DocumentClosed;
 
-            //if (layout.Descendents().OfType<LayoutAnchorable>().Any())
-            //    throw new InvalidOperationException("Unable to set the AnchorablesSource property if LayoutAnchorable objects are already present in the model");
-            var anchorablesImported = layout.Descendents().OfType<LayoutAnchorable>().Select(d => d.Content).ToArray();
-            var anchorables = anchorablesSource as IEnumerable;
-            var listOfAnchorablesToImport = new List<object>(anchorables.OfType<object>());
 
-            foreach (var document in listOfAnchorablesToImport.ToArray())
-            {
-                if (anchorablesImported.Contains(document))
-                    listOfAnchorablesToImport.Remove(document);
-            }
 
-            LayoutAnchorablePane anchorablePane = null;
-            if (layout.ActiveContent != null)
-            {
-                //look for active content parent pane
-                anchorablePane = layout.ActiveContent.Parent as LayoutAnchorablePane;
-            }
+    #endregion
 
-            if (anchorablePane == null)
-            {
-                //look for a pane on the right side
-                anchorablePane = layout.Descendents().OfType<LayoutAnchorablePane>().Where(pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right).FirstOrDefault();
-            }
+    internal void _ExecuteCloseAllButThisCommand( LayoutContent contentSelected )
+    {
+      foreach( var contentToClose in Layout.Descendents().OfType<LayoutContent>().Where( d => d != contentSelected && ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).ToArray() )
+      {
+        this.Close( contentToClose );
+      }
+    }
 
-            if (anchorablePane == null)
-            {
-                //look for an available pane
-                anchorablePane = layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
-            }
+    internal void _ExecuteCloseAllCommand( LayoutContent contentSelected )
+    {
+      foreach( var contentToClose in Layout.Descendents().OfType<LayoutContent>().Where( d => ( d.Parent is LayoutDocumentPane || d.Parent is LayoutDocumentFloatingWindow ) ).ToArray() )
+      {
+        this.Close( contentToClose );
+      }
+    }
 
-            _suspendLayoutItemCreation = true;
-            foreach (var anchorableContentToImport in listOfAnchorablesToImport)
-            {
-                var anchorableToImport = new LayoutAnchorable()
-                {
-                    Content = anchorableContentToImport
-                };
+    private void Close( LayoutContent contentToClose )
+    {
+      if( !contentToClose.CanClose )
+        return;
 
-                bool added = false;
-                if (LayoutUpdateStrategy != null)
-                {
-                    added = LayoutUpdateStrategy.BeforeInsertAnchorable(layout, anchorableToImport, anchorablePane);
-                }
+      var layoutItem = GetLayoutItemFromModel( contentToClose );
+      if( layoutItem.CloseCommand != null )
+      {
+        if( layoutItem.CloseCommand.CanExecute( null ) )
+          layoutItem.CloseCommand.Execute( null );
+      }
+      else
+      {
+        if( contentToClose is LayoutDocument )
+          _ExecuteCloseCommand( contentToClose as LayoutDocument );
+        else if( contentToClose is LayoutAnchorable )
+          _ExecuteCloseCommand( contentToClose as LayoutAnchorable );
+      }
+    }
 
-                if (!added)
-                {
-                    if (anchorablePane == null)
-                    {
-                        var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
-                        if (layout.RootPanel != null)
-                        {
-                            mainLayoutPanel.Children.Add(layout.RootPanel);
-                        }
-
-                        layout.RootPanel = mainLayoutPanel;
-                        anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength(200.0, GridUnitType.Pixel) };
-                        mainLayoutPanel.Children.Add(anchorablePane);
-                    }
+    #region DocumentContextMenu
 
-                    anchorablePane.Children.Add(anchorableToImport);
-                    added = true;
-                }
+    /// <summary>
+    /// DocumentContextMenu Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentContextMenuProperty =
+        DependencyProperty.Register( "DocumentContextMenu", typeof( ContextMenu ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ContextMenu )null ) );
 
-                if (LayoutUpdateStrategy != null)
-                    LayoutUpdateStrategy.AfterInsertAnchorable(layout, anchorableToImport);
+    /// <summary>
+    /// Gets or sets the DocumentContextMenu property.  This dependency property 
+    /// indicates context menu to show for documents.
+    /// </summary>
+    public ContextMenu DocumentContextMenu
+    {
+      get
+      {
+        return ( ContextMenu )GetValue( DocumentContextMenuProperty );
+      }
+      set
+      {
+        SetValue( DocumentContextMenuProperty, value );
+      }
+    }
 
+    #endregion
 
-                CreateAnchorableLayoutItem(anchorableToImport);
+    #region AnchorablesSource
 
-            }
+    /// <summary>
+    /// AnchorablesSource Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorablesSourceProperty =
+        DependencyProperty.Register( "AnchorablesSource", typeof( IEnumerable ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( IEnumerable )null,
+                new PropertyChangedCallback( OnAnchorablesSourceChanged ) ) );
 
-            _suspendLayoutItemCreation = false;
+    /// <summary>
+    /// Gets or sets the AnchorablesSource property.  This dependency property 
+    /// indicates source collection of anchorables.
+    /// </summary>
+    public IEnumerable AnchorablesSource
+    {
+      get
+      {
+        return ( IEnumerable )GetValue( AnchorablesSourceProperty );
+      }
+      set
+      {
+        SetValue( AnchorablesSourceProperty, value );
+      }
+    }
 
-            var anchorablesSourceAsNotifier = anchorablesSource as INotifyCollectionChanged;
-            if (anchorablesSourceAsNotifier != null)
-                anchorablesSourceAsNotifier.CollectionChanged += new NotifyCollectionChangedEventHandler(anchorablesSourceElementsChanged);
-        }
+    /// <summary>
+    /// Handles changes to the AnchorablesSource property.
+    /// </summary>
+    private static void OnAnchorablesSourceChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnAnchorablesSourceChanged( e );
+    }
 
-        internal bool SuspendAnchorablesSourceBinding = false;
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the AnchorablesSource property.
+    /// </summary>
+    protected virtual void OnAnchorablesSourceChanged( DependencyPropertyChangedEventArgs e )
+    {
+      DetachAnchorablesSource( Layout, e.OldValue as IEnumerable );
+      AttachAnchorablesSource( Layout, e.NewValue as IEnumerable );
+    }
 
-        void anchorablesSourceElementsChanged(object sender, NotifyCollectionChangedEventArgs e)
-        {
-            if (Layout == null)
-                return;
+    void AttachAnchorablesSource( LayoutRoot layout, IEnumerable anchorablesSource )
+    {
+      if( anchorablesSource == null )
+        return;
 
-            //When deserializing documents are created automatically by the deserializer
-            if (SuspendAnchorablesSourceBinding)
-                return;
+      if( layout == null )
+        return;
 
-            //handle remove
-            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
-            {
-                if (e.OldItems != null)
-                {
-                    var anchorablesToRemove = Layout.Descendents().OfType<LayoutAnchorable>().Where(d => e.OldItems.Contains(d.Content)).ToArray();
-                    foreach (var anchorableToRemove in anchorablesToRemove)
-                    {
-                        anchorableToRemove.Content = null;
-                        (anchorableToRemove.Parent as ILayoutContainer).RemoveChild(
-                            anchorableToRemove);
-                        this.RemoveViewFromLogicalChild( anchorableToRemove );
-                    }
-                }
-            }
+      //if (layout.Descendents().OfType<LayoutAnchorable>().Any())
+      //    throw new InvalidOperationException("Unable to set the AnchorablesSource property if LayoutAnchorable objects are already present in the model");
+      var anchorablesImported = layout.Descendents().OfType<LayoutAnchorable>().Select( d => d.Content ).ToArray();
+      var anchorables = anchorablesSource as IEnumerable;
+      var listOfAnchorablesToImport = new List<object>( anchorables.OfType<object>() );
 
-            //handle add
-            if (e.NewItems != null &&
-                (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                if (e.NewItems != null)
-                {
-                    LayoutAnchorablePane anchorablePane = null;
+      foreach( var document in listOfAnchorablesToImport.ToArray() )
+      {
+        if( anchorablesImported.Contains( document ) )
+          listOfAnchorablesToImport.Remove( document );
+      }
 
-                    if (Layout.ActiveContent != null)
-                    {
-                        //look for active content parent pane
-                        anchorablePane = Layout.ActiveContent.Parent as LayoutAnchorablePane;
-                    }
+      LayoutAnchorablePane anchorablePane = null;
+      if( layout.ActiveContent != null )
+      {
+        //look for active content parent pane
+        anchorablePane = layout.ActiveContent.Parent as LayoutAnchorablePane;
+      }
 
-                    if (anchorablePane == null)
-                    {
-                        //look for a pane on the right side
-                        anchorablePane = Layout.Descendents().OfType<LayoutAnchorablePane>().Where(pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right).FirstOrDefault();
-                    }
+      if( anchorablePane == null )
+      {
+        //look for a pane on the right side
+        anchorablePane = layout.Descendents().OfType<LayoutAnchorablePane>().Where( pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right ).FirstOrDefault();
+      }
 
-                    if (anchorablePane == null)
-                    {
-                        //look for an available pane
-                        anchorablePane = Layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
-                    }
+      if( anchorablePane == null )
+      {
+        //look for an available pane
+        anchorablePane = layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
+      }
 
-                    _suspendLayoutItemCreation = true;
-                    foreach (var anchorableContentToImport in e.NewItems)
-                    {
-                        var anchorableToImport = new LayoutAnchorable()
-                        {
-                            Content = anchorableContentToImport
-                        };
-
-                        bool added = false;
-                        if (LayoutUpdateStrategy != null)
-                        {
-                            added = LayoutUpdateStrategy.BeforeInsertAnchorable(Layout, anchorableToImport, anchorablePane);
-                        }
-
-                        if (!added)
-                        {
-                            if (anchorablePane == null)
-                            {
-                                var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
-                                if (Layout.RootPanel != null)
-                                {
-                                    mainLayoutPanel.Children.Add(Layout.RootPanel);
-                                }
-
-                                Layout.RootPanel = mainLayoutPanel;
-                                anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength(200.0, GridUnitType.Pixel) };
-                                mainLayoutPanel.Children.Add(anchorablePane);
-                            }
-
-                            anchorablePane.Children.Add(anchorableToImport);
-                            added = true;
-                        }
-
-                        if (LayoutUpdateStrategy != null)
-                        {
-                            LayoutUpdateStrategy.AfterInsertAnchorable(Layout, anchorableToImport);
-                        }
-
-                        var root = anchorableToImport.Root;
-
-                        if (root != null && root.Manager == this)
-                        {
-                            CreateAnchorableLayoutItem(anchorableToImport);
-                        }
+      _suspendLayoutItemCreation = true;
+      foreach( var anchorableContentToImport in listOfAnchorablesToImport )
+      {
+        var anchorableToImport = new LayoutAnchorable()
+        {
+          Content = anchorableContentToImport
+        };
 
-                    }
-                    _suspendLayoutItemCreation = false;
-                }
-            }
+        bool added = false;
+        if( LayoutUpdateStrategy != null )
+        {
+          added = LayoutUpdateStrategy.BeforeInsertAnchorable( layout, anchorableToImport, anchorablePane );
+        }
 
-            if (e.Action == NotifyCollectionChangedAction.Reset)
+        if( !added )
+        {
+          if( anchorablePane == null )
+          {
+            var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
+            if( layout.RootPanel != null )
             {
-                //NOTE: I'm going to clear every anchorable present in layout but
-                //some anchorable may have been added directly to the layout, for now I clear them too
-                var anchorablesToRemove = Layout.Descendents().OfType<LayoutAnchorable>().ToArray();
-                foreach (var anchorableToRemove in anchorablesToRemove)
-                {
-                    (anchorableToRemove.Parent as ILayoutContainer).RemoveChild(
-                        anchorableToRemove);
-                    this.RemoveViewFromLogicalChild( anchorableToRemove );
-                }
+              mainLayoutPanel.Children.Add( layout.RootPanel );
             }
 
-            if (Layout != null)
-                Layout.CollectGarbage();
+            layout.RootPanel = mainLayoutPanel;
+            anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength( 200.0, GridUnitType.Pixel ) };
+            mainLayoutPanel.Children.Add( anchorablePane );
+          }
+
+          anchorablePane.Children.Add( anchorableToImport );
+          added = true;
         }
 
-        void DetachAnchorablesSource(LayoutRoot layout, IEnumerable anchorablesSource)
-        {
-            if (anchorablesSource == null)
-                return;
+        if( LayoutUpdateStrategy != null )
+          LayoutUpdateStrategy.AfterInsertAnchorable( layout, anchorableToImport );
 
-            if (layout == null)
-                return;
 
-            var anchorablesToRemove = layout.Descendents().OfType<LayoutAnchorable>()
-                .Where(d => anchorablesSource.Contains(d.Content)).ToArray();
+        CreateAnchorableLayoutItem( anchorableToImport );
 
-            foreach (var anchorableToRemove in anchorablesToRemove)
-            {
-                (anchorableToRemove.Parent as ILayoutContainer).RemoveChild(
-                    anchorableToRemove);
-                this.RemoveViewFromLogicalChild( anchorableToRemove );
-            }
+      }
 
-            var anchorablesSourceAsNotifier = anchorablesSource as INotifyCollectionChanged;
-            if (anchorablesSourceAsNotifier != null)
-                anchorablesSourceAsNotifier.CollectionChanged -= new NotifyCollectionChangedEventHandler(anchorablesSourceElementsChanged);
-        }
+      _suspendLayoutItemCreation = false;
+
+      var anchorablesSourceAsNotifier = anchorablesSource as INotifyCollectionChanged;
+      if( anchorablesSourceAsNotifier != null )
+        anchorablesSourceAsNotifier.CollectionChanged += new NotifyCollectionChangedEventHandler( anchorablesSourceElementsChanged );
+    }
+
+    internal bool SuspendAnchorablesSourceBinding = false;
 
-        #endregion
+    void anchorablesSourceElementsChanged( object sender, NotifyCollectionChangedEventArgs e )
+    {
+      if( Layout == null )
+        return;
+
+      //When deserializing documents are created automatically by the deserializer
+      if( SuspendAnchorablesSourceBinding )
+        return;
 
-        internal void _ExecuteCloseCommand(LayoutAnchorable anchorable)
+      //handle remove
+      if( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace )
+      {
+        if( e.OldItems != null )
         {
-            var model = anchorable as LayoutAnchorable;
-            if (model != null )
-            {
-              model.CloseAnchorable();
-              this.RemoveViewFromLogicalChild( anchorable );
-            }
+          var anchorablesToRemove = Layout.Descendents().OfType<LayoutAnchorable>().Where( d => e.OldItems.Contains( d.Content ) ).ToArray();
+          foreach( var anchorableToRemove in anchorablesToRemove )
+          {
+            anchorableToRemove.Content = null;
+            ( anchorableToRemove.Parent as ILayoutContainer ).RemoveChild(
+                anchorableToRemove );
+            this.RemoveViewFromLogicalChild( anchorableToRemove );
+          }
         }
+      }
 
-        internal void _ExecuteHideCommand(LayoutAnchorable anchorable)
+      //handle add
+      if( e.NewItems != null &&
+          ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        if( e.NewItems != null )
         {
-            var model = anchorable as LayoutAnchorable;
-            if (model != null)
+          LayoutAnchorablePane anchorablePane = null;
+
+          if( Layout.ActiveContent != null )
+          {
+            //look for active content parent pane
+            anchorablePane = Layout.ActiveContent.Parent as LayoutAnchorablePane;
+          }
+
+          if( anchorablePane == null )
+          {
+            //look for a pane on the right side
+            anchorablePane = Layout.Descendents().OfType<LayoutAnchorablePane>().Where( pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right ).FirstOrDefault();
+          }
+
+          if( anchorablePane == null )
+          {
+            //look for an available pane
+            anchorablePane = Layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
+          }
+
+          _suspendLayoutItemCreation = true;
+          foreach( var anchorableContentToImport in e.NewItems )
+          {
+            var anchorableToImport = new LayoutAnchorable()
             {
-                //by default hide the anchorable
-                model.Hide();
+              Content = anchorableContentToImport
+            };
+
+            bool added = false;
+            if( LayoutUpdateStrategy != null )
+            {
+              added = LayoutUpdateStrategy.BeforeInsertAnchorable( Layout, anchorableToImport, anchorablePane );
             }
-        }
 
-        internal void _ExecuteAutoHideCommand(LayoutAnchorable _anchorable)
-        {
-            _anchorable.ToggleAutoHide();
-        }
+            if( !added )
+            {
+              if( anchorablePane == null )
+              {
+                var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
+                if( Layout.RootPanel != null )
+                {
+                  mainLayoutPanel.Children.Add( Layout.RootPanel );
+                }
 
-        internal void _ExecuteFloatCommand(LayoutContent contentToFloat)
-        {
-            contentToFloat.Float();
-        }
+                Layout.RootPanel = mainLayoutPanel;
+                anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength( 200.0, GridUnitType.Pixel ) };
+                mainLayoutPanel.Children.Add( anchorablePane );
+              }
 
-        internal void _ExecuteDockCommand(LayoutAnchorable anchorable)
-        {
-            anchorable.Dock();
-        }
+              anchorablePane.Children.Add( anchorableToImport );
+              added = true;
+            }
 
-        internal void _ExecuteDockAsDocumentCommand(LayoutContent content)
-        {
-            content.DockAsDocument();
-        }
+            if( LayoutUpdateStrategy != null )
+            {
+              LayoutUpdateStrategy.AfterInsertAnchorable( Layout, anchorableToImport );
+            }
 
-        private void RemoveViewFromLogicalChild( LayoutContent layoutContent )
-        {
-          if( layoutContent == null )
-            return;
+            var root = anchorableToImport.Root;
 
-          var layoutItem = this.GetLayoutItemFromModel( layoutContent );
-          if( layoutItem != null )
-          {
-            if( layoutItem.IsViewExists() )
+            if( root != null && root.Manager == this )
             {
-              this.InternalRemoveLogicalChild( layoutItem.View );
+              CreateAnchorableLayoutItem( anchorableToImport );
             }
+
           }
+          _suspendLayoutItemCreation = false;
         }
+      }
 
-        #region ActiveContent
-
-        /// <summary>
-        /// ActiveContent Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ActiveContentProperty =
-            DependencyProperty.Register("ActiveContent", typeof(object), typeof(DockingManager),
-                new FrameworkPropertyMetadata((object)null,
-                    new PropertyChangedCallback(OnActiveContentChanged)));
-
-        /// <summary>
-        /// Gets or sets the ActiveContent property.  This dependency property 
-        /// indicates the content currently active.
-        /// </summary>
-        public object ActiveContent
+      if( e.Action == NotifyCollectionChangedAction.Reset )
+      {
+        //NOTE: I'm going to clear every anchorable present in layout but
+        //some anchorable may have been added directly to the layout, for now I clear them too
+        var anchorablesToRemove = Layout.Descendents().OfType<LayoutAnchorable>().ToArray();
+        foreach( var anchorableToRemove in anchorablesToRemove )
         {
-            get { return (object)GetValue(ActiveContentProperty); }
-            set { SetValue(ActiveContentProperty, value); }
+          ( anchorableToRemove.Parent as ILayoutContainer ).RemoveChild(
+              anchorableToRemove );
+          this.RemoveViewFromLogicalChild( anchorableToRemove );
         }
+      }
 
-        /// <summary>
-        /// Handles changes to the ActiveContent property.
-        /// </summary>
-        private static void OnActiveContentChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).InternalSetActiveContent(e.NewValue);
-            ((DockingManager)d).OnActiveContentChanged(e);
-        }
+      if( Layout != null )
+        Layout.CollectGarbage();
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the ActiveContent property.
-        /// </summary>
-        protected virtual void OnActiveContentChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (ActiveContentChanged != null)
-                ActiveContentChanged(this, EventArgs.Empty);
-        }
+    void DetachAnchorablesSource( LayoutRoot layout, IEnumerable anchorablesSource )
+    {
+      if( anchorablesSource == null )
+        return;
 
+      if( layout == null )
+        return;
 
-        bool _insideInternalSetActiveContent = false;
-        void InternalSetActiveContent(object contentObject)
-        {
-            var layoutContent = Layout.Descendents().OfType<LayoutContent>().FirstOrDefault(lc => lc == contentObject || lc.Content == contentObject);
-            _insideInternalSetActiveContent = true;
-            Layout.ActiveContent = layoutContent;
-            _insideInternalSetActiveContent = false;
-        }
+      var anchorablesToRemove = layout.Descendents().OfType<LayoutAnchorable>()
+          .Where( d => anchorablesSource.Contains( d.Content ) ).ToArray();
 
-        public event EventHandler ActiveContentChanged;
+      foreach( var anchorableToRemove in anchorablesToRemove )
+      {
+        ( anchorableToRemove.Parent as ILayoutContainer ).RemoveChild(
+            anchorableToRemove );
+        this.RemoveViewFromLogicalChild( anchorableToRemove );
+      }
 
-        #endregion
+      var anchorablesSourceAsNotifier = anchorablesSource as INotifyCollectionChanged;
+      if( anchorablesSourceAsNotifier != null )
+        anchorablesSourceAsNotifier.CollectionChanged -= new NotifyCollectionChangedEventHandler( anchorablesSourceElementsChanged );
+    }
 
-        #region AnchorableContextMenu
+    #endregion
 
-        /// <summary>
-        /// AnchorableContextMenu Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AnchorableContextMenuProperty =
-            DependencyProperty.Register("AnchorableContextMenu", typeof(ContextMenu), typeof(DockingManager),
-                new FrameworkPropertyMetadata((ContextMenu)null));
+    internal void _ExecuteCloseCommand( LayoutAnchorable anchorable )
+    {
+      var model = anchorable as LayoutAnchorable;
+      if( model != null )
+      {
+        model.CloseAnchorable();
+        this.RemoveViewFromLogicalChild( anchorable );
+      }
+    }
 
-        /// <summary>
-        /// Gets or sets the AnchorableContextMenu property.  This dependency property 
-        /// indicates the context menu to show up for anchorables.
-        /// </summary>
-        public ContextMenu AnchorableContextMenu
-        {
-            get { return (ContextMenu)GetValue(AnchorableContextMenuProperty); }
-            set { SetValue(AnchorableContextMenuProperty, value); }
-        }
+    internal void _ExecuteHideCommand( LayoutAnchorable anchorable )
+    {
+      var model = anchorable as LayoutAnchorable;
+      if( model != null )
+      {
+        model.Hide();
+      }
+    }
+
+    internal void _ExecuteAutoHideCommand( LayoutAnchorable _anchorable )
+    {
+      _anchorable.ToggleAutoHide();
+    }
 
-        #endregion
+    internal void _ExecuteFloatCommand( LayoutContent contentToFloat )
+    {
+      contentToFloat.Float();
+    }
 
-        #region Theme
+    internal void _ExecuteDockCommand( LayoutAnchorable anchorable )
+    {
+      anchorable.Dock();
+    }
 
-        /// <summary>
-        /// Theme Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ThemeProperty =
-            DependencyProperty.Register("Theme", typeof(Theme), typeof(DockingManager),
-                new FrameworkPropertyMetadata(null,
-                    new PropertyChangedCallback(OnThemeChanged)));
+    internal void _ExecuteDockAsDocumentCommand( LayoutContent content )
+    {
+      content.DockAsDocument();
+    }
 
-        /// <summary>
-        /// Gets or sets the Theme property.  This dependency property 
-        /// indicates the theme to use for AvalonDock controls.
-        /// </summary>
-        public Theme Theme
-        {
-            get { return (Theme)GetValue(ThemeProperty); }
-            set { SetValue(ThemeProperty, value); }
-        }
+    private void RemoveViewFromLogicalChild( LayoutContent layoutContent )
+    {
+      if( layoutContent == null )
+        return;
 
-        /// <summary>
-        /// Handles changes to the Theme property.
-        /// </summary>
-        private static void OnThemeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+      var layoutItem = this.GetLayoutItemFromModel( layoutContent );
+      if( layoutItem != null )
+      {
+        if( layoutItem.IsViewExists() )
         {
-            ((DockingManager)d).OnThemeChanged(e);
+          this.InternalRemoveLogicalChild( layoutItem.View );
         }
+      }
+    }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the Theme property.
-        /// </summary>
-        protected virtual void OnThemeChanged(DependencyPropertyChangedEventArgs e)
-        {
-            var oldTheme = e.OldValue as Theme;
-            var newTheme = e.NewValue as Theme;
-            var resources = this.Resources;
-            if (oldTheme != null)
-            {
-              if( oldTheme is DictionaryTheme )
-              {
-                if( currentThemeResourceDictionary != null )
-                {
-                  resources.MergedDictionaries.Remove( currentThemeResourceDictionary );
-                  currentThemeResourceDictionary = null;
-                }
-              }
-              else
-              {
-                var resourceDictionaryToRemove =
-                   resources.MergedDictionaries.FirstOrDefault( r => r.Source == oldTheme.GetResourceUri() );
-                if( resourceDictionaryToRemove != null )
-                  resources.MergedDictionaries.Remove(
-                      resourceDictionaryToRemove );
-              }
-            }
+    #region ActiveContent
+
+    /// <summary>
+    /// ActiveContent Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ActiveContentProperty =
+        DependencyProperty.Register( "ActiveContent", typeof( object ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( object )null,
+                new PropertyChangedCallback( OnActiveContentChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the ActiveContent property.  This dependency property 
+    /// indicates the content currently active.
+    /// </summary>
+    public object ActiveContent
+    {
+      get
+      {
+        return ( object )GetValue( ActiveContentProperty );
+      }
+      set
+      {
+        SetValue( ActiveContentProperty, value );
+      }
+    }
 
-            if (newTheme != null)
-            {
-              if( newTheme is DictionaryTheme )
-              {
-                currentThemeResourceDictionary = ( ( DictionaryTheme )newTheme ).ThemeResourceDictionary;
-                resources.MergedDictionaries.Add( currentThemeResourceDictionary );
-              }
-              else
-              {
-                resources.MergedDictionaries.Add(new ResourceDictionary() { Source = newTheme.GetResourceUri() });
-              }
-            }
+    /// <summary>
+    /// Handles changes to the ActiveContent property.
+    /// </summary>
+    private static void OnActiveContentChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).InternalSetActiveContent( e.NewValue );
+      ( ( DockingManager )d ).OnActiveContentChanged( e );
+    }
+
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the ActiveContent property.
+    /// </summary>
+    protected virtual void OnActiveContentChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( ActiveContentChanged != null )
+        ActiveContentChanged( this, EventArgs.Empty );
+    }
+
+
+    bool _insideInternalSetActiveContent = false;
+    void InternalSetActiveContent( object contentObject )
+    {
+      var layoutContent = Layout.Descendents().OfType<LayoutContent>().FirstOrDefault( lc => lc == contentObject || lc.Content == contentObject );
+      _insideInternalSetActiveContent = true;
+      Layout.ActiveContent = layoutContent;
+      _insideInternalSetActiveContent = false;
+    }
 
-            foreach (var fwc in _fwList)
-                fwc.UpdateThemeResources(oldTheme);
+    public event EventHandler ActiveContentChanged;
 
-            if (_navigatorWindow != null)
-                _navigatorWindow.UpdateThemeResources();
+    #endregion
 
-            if (_overlayWindow != null)
-                _overlayWindow.UpdateThemeResources();
-        }
+    #region AnchorableContextMenu
 
-        #endregion
+    /// <summary>
+    /// AnchorableContextMenu Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AnchorableContextMenuProperty =
+        DependencyProperty.Register( "AnchorableContextMenu", typeof( ContextMenu ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( ContextMenu )null ) );
 
-        #region GridSplitterWidth
+    /// <summary>
+    /// Gets or sets the AnchorableContextMenu property.  This dependency property 
+    /// indicates the context menu to show up for anchorables.
+    /// </summary>
+    public ContextMenu AnchorableContextMenu
+    {
+      get
+      {
+        return ( ContextMenu )GetValue( AnchorableContextMenuProperty );
+      }
+      set
+      {
+        SetValue( AnchorableContextMenuProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// GridSplitterWidth Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty GridSplitterWidthProperty =
-            DependencyProperty.Register("GridSplitterWidth", typeof(double), typeof(DockingManager),
-                new FrameworkPropertyMetadata((double)6.0));
+    #endregion
 
-        /// <summary>
-        /// Gets or sets the GridSplitterWidth property.  This dependency property 
-        /// indicates width of grid splitters.
-        /// </summary>
-        public double GridSplitterWidth
-        {
-            get { return (double)GetValue(GridSplitterWidthProperty); }
-            set { SetValue(GridSplitterWidthProperty, value); }
-        }
+    #region Theme
 
-        #endregion
+    /// <summary>
+    /// Theme Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ThemeProperty =
+        DependencyProperty.Register( "Theme", typeof( Theme ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( null,
+                new PropertyChangedCallback( OnThemeChanged ) ) );
 
-        #region GridSplitterHeight
+    /// <summary>
+    /// Gets or sets the Theme property.  This dependency property 
+    /// indicates the theme to use for AvalonDock controls.
+    /// </summary>
+    public Theme Theme
+    {
+      get
+      {
+        return ( Theme )GetValue( ThemeProperty );
+      }
+      set
+      {
+        SetValue( ThemeProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// GridSplitterHeight Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty GridSplitterHeightProperty =
-            DependencyProperty.Register("GridSplitterHeight", typeof(double), typeof(DockingManager),
-                new FrameworkPropertyMetadata((double)6.0));
+    /// <summary>
+    /// Handles changes to the Theme property.
+    /// </summary>
+    private static void OnThemeChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnThemeChanged( e );
+    }
 
-        /// <summary>
-        /// Gets or sets the GridSplitterHeight property.  This dependency property 
-        /// indicates height of grid splitters.
-        /// </summary>
-        public double GridSplitterHeight
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the Theme property.
+    /// </summary>
+    protected virtual void OnThemeChanged( DependencyPropertyChangedEventArgs e )
+    {
+      var oldTheme = e.OldValue as Theme;
+      var newTheme = e.NewValue as Theme;
+      var resources = this.Resources;
+      if( oldTheme != null )
+      {
+        if( oldTheme is DictionaryTheme )
         {
-            get { return (double)GetValue(GridSplitterHeightProperty); }
-            set { SetValue(GridSplitterHeightProperty, value); }
+          if( currentThemeResourceDictionary != null )
+          {
+            resources.MergedDictionaries.Remove( currentThemeResourceDictionary );
+            currentThemeResourceDictionary = null;
+          }
         }
-
-        #endregion
-
-        internal void _ExecuteContentActivateCommand(LayoutContent content)
+        else
         {
-            content.IsActive = true;
+          var resourceDictionaryToRemove =
+             resources.MergedDictionaries.FirstOrDefault( r => r.Source == oldTheme.GetResourceUri() );
+          if( resourceDictionaryToRemove != null )
+            resources.MergedDictionaries.Remove(
+                resourceDictionaryToRemove );
         }
+      }
 
-        #region DocumentPaneMenuItemHeaderTemplate
-
-        /// <summary>
-        /// DocumentPaneMenuItemHeaderTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentPaneMenuItemHeaderTemplateProperty =
-            DependencyProperty.Register("DocumentPaneMenuItemHeaderTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null,
-                    new PropertyChangedCallback(OnDocumentPaneMenuItemHeaderTemplateChanged),
-                    new CoerceValueCallback(CoerceDocumentPaneMenuItemHeaderTemplateValue)));
-
-        /// <summary>
-        /// Gets or sets the DocumentPaneMenuItemHeaderTemplate property.  This dependency property 
-        /// indicates the header template to use while creating menu items for the document panes.
-        /// </summary>
-        public DataTemplate DocumentPaneMenuItemHeaderTemplate
+      if( newTheme != null )
+      {
+        if( newTheme is DictionaryTheme )
         {
-            get { return (DataTemplate)GetValue(DocumentPaneMenuItemHeaderTemplateProperty); }
-            set { SetValue(DocumentPaneMenuItemHeaderTemplateProperty, value); }
+          currentThemeResourceDictionary = ( ( DictionaryTheme )newTheme ).ThemeResourceDictionary;
+          resources.MergedDictionaries.Add( currentThemeResourceDictionary );
         }
-
-        /// <summary>
-        /// Handles changes to the DocumentPaneMenuItemHeaderTemplate property.
-        /// </summary>
-        private static void OnDocumentPaneMenuItemHeaderTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        else
         {
-            ((DockingManager)d).OnDocumentPaneMenuItemHeaderTemplateChanged(e);
+          resources.MergedDictionaries.Add( new ResourceDictionary() { Source = newTheme.GetResourceUri() } );
         }
+      }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentPaneMenuItemHeaderTemplate property.
-        /// </summary>
-        protected virtual void OnDocumentPaneMenuItemHeaderTemplateChanged(DependencyPropertyChangedEventArgs e)
-        { 
-        }
+      foreach( var fwc in _fwList )
+        fwc.UpdateThemeResources( oldTheme );
 
-        /// <summary>
-        /// Coerces the DocumentPaneMenuItemHeaderTemplate value.
-        /// </summary>
-        private static object CoerceDocumentPaneMenuItemHeaderTemplateValue(DependencyObject d, object value)
-        {
-            if (value != null &&
-                d.GetValue(DocumentPaneMenuItemHeaderTemplateSelectorProperty) != null)
-                return null;
-            if (value == null)
-                return d.GetValue(DocumentHeaderTemplateProperty);
+      if( _navigatorWindow != null )
+        _navigatorWindow.UpdateThemeResources();
 
-            return value;
-        }
+      if( _overlayWindow != null )
+        _overlayWindow.UpdateThemeResources();
+    }
 
-        #endregion
+    #endregion
 
-        #region DocumentPaneMenuItemHeaderTemplateSelector
+    #region GridSplitterWidth
 
-        /// <summary>
-        /// DocumentPaneMenuItemHeaderTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty DocumentPaneMenuItemHeaderTemplateSelectorProperty =
-            DependencyProperty.Register("DocumentPaneMenuItemHeaderTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null,
-                    new PropertyChangedCallback(OnDocumentPaneMenuItemHeaderTemplateSelectorChanged),
-                    new CoerceValueCallback(CoerceDocumentPaneMenuItemHeaderTemplateSelectorValue)));
+    /// <summary>
+    /// GridSplitterWidth Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty GridSplitterWidthProperty =
+        DependencyProperty.Register( "GridSplitterWidth", typeof( double ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( double )6.0 ) );
 
-        /// <summary>
-        /// Gets or sets the DocumentPaneMenuItemHeaderTemplateSelector property.  This dependency property 
-        /// indicates the data template selector to use for the menu items show when user select the DocumentPane document switch context menu.
-        /// </summary>
-        public DataTemplateSelector DocumentPaneMenuItemHeaderTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(DocumentPaneMenuItemHeaderTemplateSelectorProperty); }
-            set { SetValue(DocumentPaneMenuItemHeaderTemplateSelectorProperty, value); }
-        }
+    /// <summary>
+    /// Gets or sets the GridSplitterWidth property.  This dependency property 
+    /// indicates width of grid splitters.
+    /// </summary>
+    public double GridSplitterWidth
+    {
+      get
+      {
+        return ( double )GetValue( GridSplitterWidthProperty );
+      }
+      set
+      {
+        SetValue( GridSplitterWidthProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Handles changes to the DocumentPaneMenuItemHeaderTemplateSelector property.
-        /// </summary>
-        private static void OnDocumentPaneMenuItemHeaderTemplateSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnDocumentPaneMenuItemHeaderTemplateSelectorChanged(e);
-        }
+    #endregion
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the DocumentPaneMenuItemHeaderTemplateSelector property.
-        /// </summary>
-        protected virtual void OnDocumentPaneMenuItemHeaderTemplateSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            if (e.NewValue != null &&
-                DocumentPaneMenuItemHeaderTemplate != null)
-                DocumentPaneMenuItemHeaderTemplate = null;
+    #region GridSplitterHeight
 
-        }
+    /// <summary>
+    /// GridSplitterHeight Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty GridSplitterHeightProperty =
+        DependencyProperty.Register( "GridSplitterHeight", typeof( double ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( double )6.0 ) );
 
-        /// <summary>
-        /// Coerces the DocumentPaneMenuItemHeaderTemplateSelector value.
-        /// </summary>
-        private static object CoerceDocumentPaneMenuItemHeaderTemplateSelectorValue(DependencyObject d, object value)
-        {
-            return value;
-        }
+    /// <summary>
+    /// Gets or sets the GridSplitterHeight property.  This dependency property 
+    /// indicates height of grid splitters.
+    /// </summary>
+    public double GridSplitterHeight
+    {
+      get
+      {
+        return ( double )GetValue( GridSplitterHeightProperty );
+      }
+      set
+      {
+        SetValue( GridSplitterHeightProperty, value );
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region IconContentTemplate
+    internal void _ExecuteContentActivateCommand( LayoutContent content )
+    {
+      content.IsActive = true;
+    }
 
-        /// <summary>
-        /// IconContentTemplate Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty IconContentTemplateProperty =
-            DependencyProperty.Register("IconContentTemplate", typeof(DataTemplate), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplate)null));
+    #region DocumentPaneMenuItemHeaderTemplate
+
+    /// <summary>
+    /// DocumentPaneMenuItemHeaderTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentPaneMenuItemHeaderTemplateProperty =
+        DependencyProperty.Register( "DocumentPaneMenuItemHeaderTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null,
+                new PropertyChangedCallback( OnDocumentPaneMenuItemHeaderTemplateChanged ),
+                new CoerceValueCallback( CoerceDocumentPaneMenuItemHeaderTemplateValue ) ) );
+
+    /// <summary>
+    /// Gets or sets the DocumentPaneMenuItemHeaderTemplate property.  This dependency property 
+    /// indicates the header template to use while creating menu items for the document panes.
+    /// </summary>
+    public DataTemplate DocumentPaneMenuItemHeaderTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( DocumentPaneMenuItemHeaderTemplateProperty );
+      }
+      set
+      {
+        SetValue( DocumentPaneMenuItemHeaderTemplateProperty, value );
+      }
+    }
 
-        /// <summary>
-        /// Gets or sets the IconContentTemplate property.  This dependency property 
-        /// indicates the data template to use while extracting the icon from model.
-        /// </summary>
-        public DataTemplate IconContentTemplate
-        {
-            get { return (DataTemplate)GetValue(IconContentTemplateProperty); }
-            set { SetValue(IconContentTemplateProperty, value); }
-        }
+    /// <summary>
+    /// Handles changes to the DocumentPaneMenuItemHeaderTemplate property.
+    /// </summary>
+    private static void OnDocumentPaneMenuItemHeaderTemplateChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentPaneMenuItemHeaderTemplateChanged( e );
+    }
 
-        #endregion
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentPaneMenuItemHeaderTemplate property.
+    /// </summary>
+    protected virtual void OnDocumentPaneMenuItemHeaderTemplateChanged( DependencyPropertyChangedEventArgs e )
+    {
+    }
 
-        #region IconContentTemplateSelector
+    /// <summary>
+    /// Coerces the DocumentPaneMenuItemHeaderTemplate value.
+    /// </summary>
+    private static object CoerceDocumentPaneMenuItemHeaderTemplateValue( DependencyObject d, object value )
+    {
+      if( value != null &&
+          d.GetValue( DocumentPaneMenuItemHeaderTemplateSelectorProperty ) != null )
+        return null;
+      if( value == null )
+        return d.GetValue( DocumentHeaderTemplateProperty );
 
-        /// <summary>
-        /// IconContentTemplateSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty IconContentTemplateSelectorProperty =
-            DependencyProperty.Register("IconContentTemplateSelector", typeof(DataTemplateSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((DataTemplateSelector)null));
+      return value;
+    }
 
-        /// <summary>
-        /// Gets or sets the IconContentTemplateSelector property.  This dependency property 
-        /// indicates data template selector to use while selecting the datatamplate for content icons.
-        /// </summary>
-        public DataTemplateSelector IconContentTemplateSelector
-        {
-            get { return (DataTemplateSelector)GetValue(IconContentTemplateSelectorProperty); }
-            set { SetValue(IconContentTemplateSelectorProperty, value); }
-        }
+    #endregion
 
-        #endregion
+    #region DocumentPaneMenuItemHeaderTemplateSelector
 
-        #region LayoutItems
+    /// <summary>
+    /// DocumentPaneMenuItemHeaderTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty DocumentPaneMenuItemHeaderTemplateSelectorProperty =
+        DependencyProperty.Register( "DocumentPaneMenuItemHeaderTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null,
+                new PropertyChangedCallback( OnDocumentPaneMenuItemHeaderTemplateSelectorChanged ),
+                new CoerceValueCallback( CoerceDocumentPaneMenuItemHeaderTemplateSelectorValue ) ) );
 
-        List<LayoutItem> _layoutItems = new List<LayoutItem>();
+    /// <summary>
+    /// Gets or sets the DocumentPaneMenuItemHeaderTemplateSelector property.  This dependency property 
+    /// indicates the data template selector to use for the menu items show when user select the DocumentPane document switch context menu.
+    /// </summary>
+    public DataTemplateSelector DocumentPaneMenuItemHeaderTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( DocumentPaneMenuItemHeaderTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( DocumentPaneMenuItemHeaderTemplateSelectorProperty, value );
+      }
+    }
 
-        bool _suspendLayoutItemCreation = false;
+    /// <summary>
+    /// Handles changes to the DocumentPaneMenuItemHeaderTemplateSelector property.
+    /// </summary>
+    private static void OnDocumentPaneMenuItemHeaderTemplateSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnDocumentPaneMenuItemHeaderTemplateSelectorChanged( e );
+    }
 
-        void DetachLayoutItems()
-        {
-            if (Layout != null)
-            {
-                _layoutItems.ForEach<LayoutItem>(i => i.Detach());
-                _layoutItems.Clear();
-                Layout.ElementAdded -= new EventHandler<LayoutElementEventArgs>(Layout_ElementAdded);
-                Layout.ElementRemoved -= new EventHandler<LayoutElementEventArgs>(Layout_ElementRemoved);
-            }
-        }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the DocumentPaneMenuItemHeaderTemplateSelector property.
+    /// </summary>
+    protected virtual void OnDocumentPaneMenuItemHeaderTemplateSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      if( e.NewValue != null &&
+          DocumentPaneMenuItemHeaderTemplate != null )
+        DocumentPaneMenuItemHeaderTemplate = null;
 
-        void Layout_ElementRemoved(object sender, LayoutElementEventArgs e)
-        {
-            if (_suspendLayoutItemCreation)
-                return;
+    }
 
-            CollectLayoutItemsDeleted();
-        }
+    /// <summary>
+    /// Coerces the DocumentPaneMenuItemHeaderTemplateSelector value.
+    /// </summary>
+    private static object CoerceDocumentPaneMenuItemHeaderTemplateSelectorValue( DependencyObject d, object value )
+    {
+      return value;
+    }
 
-        void Layout_ElementAdded(object sender, LayoutElementEventArgs e)
-        {
-            if (_suspendLayoutItemCreation)
-                return;
+    #endregion
 
-            foreach (var content in Layout.Descendents().OfType<LayoutContent>())
-            {
-                if (content is LayoutDocument)
-                    CreateDocumentLayoutItem(content as LayoutDocument);
-                else //if (content is LayoutAnchorable)
-                    CreateAnchorableLayoutItem(content as LayoutAnchorable);
-            }
+    #region IconContentTemplate
 
-            CollectLayoutItemsDeleted();
-        }
+    /// <summary>
+    /// IconContentTemplate Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty IconContentTemplateProperty =
+        DependencyProperty.Register( "IconContentTemplate", typeof( DataTemplate ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplate )null ) );
 
+    /// <summary>
+    /// Gets or sets the IconContentTemplate property.  This dependency property 
+    /// indicates the data template to use while extracting the icon from model.
+    /// </summary>
+    public DataTemplate IconContentTemplate
+    {
+      get
+      {
+        return ( DataTemplate )GetValue( IconContentTemplateProperty );
+      }
+      set
+      {
+        SetValue( IconContentTemplateProperty, value );
+      }
+    }
 
-        DispatcherOperation _collectLayoutItemsOperations = null;
-        void CollectLayoutItemsDeleted()
-        {
-            if (_collectLayoutItemsOperations != null)
-                return;
-            _collectLayoutItemsOperations = Dispatcher.BeginInvoke(new Action(() =>
-                {
-                    _collectLayoutItemsOperations = null;
-                    foreach (var itemToRemove in _layoutItems.Where(item => item.LayoutElement.Root != Layout).ToArray())
-                    {
+    #endregion
 
-                        if (itemToRemove != null &&
-                            itemToRemove.Model != null &&
-                            itemToRemove.Model is UIElement)
-                        {
-                            //((ILogicalChildrenContainer)this).InternalRemoveLogicalChild(itemToRemove.Model as UIElement);
-                        }
+    #region IconContentTemplateSelector
 
-                        itemToRemove.Detach();
-                        _layoutItems.Remove(itemToRemove);
+    /// <summary>
+    /// IconContentTemplateSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty IconContentTemplateSelectorProperty =
+        DependencyProperty.Register( "IconContentTemplateSelector", typeof( DataTemplateSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( DataTemplateSelector )null ) );
 
-                    }
-                }));
-        }
+    /// <summary>
+    /// Gets or sets the IconContentTemplateSelector property.  This dependency property 
+    /// indicates data template selector to use while selecting the datatamplate for content icons.
+    /// </summary>
+    public DataTemplateSelector IconContentTemplateSelector
+    {
+      get
+      {
+        return ( DataTemplateSelector )GetValue( IconContentTemplateSelectorProperty );
+      }
+      set
+      {
+        SetValue( IconContentTemplateSelectorProperty, value );
+      }
+    }
 
+    #endregion
 
-        void AttachLayoutItems()
-        {
-            if (Layout != null)
-            {
-                foreach (var document in Layout.Descendents().OfType<LayoutDocument>().ToArray())
-                {
-                    CreateDocumentLayoutItem(document);
-                    //var documentItem = new LayoutDocumentItem();
-                    //documentItem.Attach(document);
-                    //ApplyStyleToLayoutItem(documentItem);
-                    //_layoutItems.Add(documentItem);
-                }
-                foreach (var anchorable in Layout.Descendents().OfType<LayoutAnchorable>().ToArray())
-                {
-                    CreateAnchorableLayoutItem(anchorable);
-                    //var anchorableItem = new LayoutAnchorableItem();
-                    //anchorableItem.Attach(anchorable);
-                    //ApplyStyleToLayoutItem(anchorableItem);
-                    //_layoutItems.Add(anchorableItem);
-                }
+    #region LayoutItems
 
-                Layout.ElementAdded += new EventHandler<LayoutElementEventArgs>(Layout_ElementAdded);
-                Layout.ElementRemoved += new EventHandler<LayoutElementEventArgs>(Layout_ElementRemoved);
-            }
-        }
+    List<LayoutItem> _layoutItems = new List<LayoutItem>();
 
-        void ApplyStyleToLayoutItem(LayoutItem layoutItem)
-        {
-            layoutItem._ClearDefaultBindings();
-            if (LayoutItemContainerStyle != null)
-                layoutItem.Style = LayoutItemContainerStyle;
-            else if (LayoutItemContainerStyleSelector != null)
-                layoutItem.Style = LayoutItemContainerStyleSelector.SelectStyle(layoutItem.Model, layoutItem);
-            layoutItem._SetDefaultBindings();
-        }
+    bool _suspendLayoutItemCreation = false;
 
-        void CreateAnchorableLayoutItem(LayoutAnchorable contentToAttach)
-        {
-            if (_layoutItems.Any(item => item.LayoutElement == contentToAttach))
-                return;
+    void DetachLayoutItems()
+    {
+      if( Layout != null )
+      {
+        _layoutItems.ForEach<LayoutItem>( i => i.Detach() );
+        _layoutItems.Clear();
+        Layout.ElementAdded -= new EventHandler<LayoutElementEventArgs>( Layout_ElementAdded );
+        Layout.ElementRemoved -= new EventHandler<LayoutElementEventArgs>( Layout_ElementRemoved );
+      }
+    }
 
-            var layoutItem = new LayoutAnchorableItem();
-            layoutItem.Attach(contentToAttach);
-            ApplyStyleToLayoutItem(layoutItem);
-            _layoutItems.Add(layoutItem);
+    void Layout_ElementRemoved( object sender, LayoutElementEventArgs e )
+    {
+      if( _suspendLayoutItemCreation )
+        return;
 
-            if (contentToAttach != null &&
-                contentToAttach.Content != null &&
-                contentToAttach.Content is UIElement)
-            {
-                InternalAddLogicalChild(contentToAttach.Content);
-            }
+      CollectLayoutItemsDeleted();
+    }
 
-        }
+    void Layout_ElementAdded( object sender, LayoutElementEventArgs e )
+    {
+      if( _suspendLayoutItemCreation )
+        return;
 
-        void CreateDocumentLayoutItem(LayoutDocument contentToAttach)
-        {
-            if (_layoutItems.Any(item => item.LayoutElement == contentToAttach))
-                return;
+      foreach( var content in Layout.Descendents().OfType<LayoutContent>() )
+      {
+        if( content is LayoutDocument )
+          CreateDocumentLayoutItem( content as LayoutDocument );
+        else //if (content is LayoutAnchorable)
+          CreateAnchorableLayoutItem( content as LayoutAnchorable );
+      }
+
+      CollectLayoutItemsDeleted();
+    }
 
-            var layoutItem = new LayoutDocumentItem();
-            layoutItem.Attach(contentToAttach);
-            ApplyStyleToLayoutItem(layoutItem);
-            _layoutItems.Add(layoutItem);
 
-            if (contentToAttach != null &&
-                contentToAttach.Content != null &&
-                contentToAttach.Content is UIElement)
+    DispatcherOperation _collectLayoutItemsOperations = null;
+    void CollectLayoutItemsDeleted()
+    {
+      if( _collectLayoutItemsOperations != null )
+        return;
+      _collectLayoutItemsOperations = Dispatcher.BeginInvoke( new Action( () =>
             {
-                InternalAddLogicalChild(contentToAttach.Content);
-            }
+              _collectLayoutItemsOperations = null;
+              foreach( var itemToRemove in _layoutItems.Where( item => item.LayoutElement.Root != Layout ).ToArray() )
+              {
 
-        }
+                if( itemToRemove != null &&
+                        itemToRemove.Model != null &&
+                        itemToRemove.Model is UIElement )
+                {
+                      //((ILogicalChildrenContainer)this).InternalRemoveLogicalChild(itemToRemove.Model as UIElement);
+                    }
+
+                itemToRemove.Detach();
+                _layoutItems.Remove( itemToRemove );
+
+              }
+            } ) );
+    }
 
-        #region LayoutItemContainerStyle
-
-        /// <summary>
-        /// LayoutItemContainerStyle Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutItemContainerStyleProperty =
-            DependencyProperty.Register("LayoutItemContainerStyle", typeof(Style), typeof(DockingManager),
-                new FrameworkPropertyMetadata((Style)null,
-                    new PropertyChangedCallback(OnLayoutItemContainerStyleChanged)));
-
-        /// <summary>
-        /// Gets or sets the LayoutItemContainerStyle property.  This dependency property 
-        /// indicates the style to apply to LayoutDocumentItem objects. A LayoutDocumentItem object is created when a new LayoutDocument is created inside the current Layout.
-        /// </summary>
-        public Style LayoutItemContainerStyle
+
+    void AttachLayoutItems()
+    {
+      if( Layout != null )
+      {
+        foreach( var document in Layout.Descendents().OfType<LayoutDocument>().ToArray() )
         {
-            get { return (Style)GetValue(LayoutItemContainerStyleProperty); }
-            set { SetValue(LayoutItemContainerStyleProperty, value); }
+          CreateDocumentLayoutItem( document );
+          //var documentItem = new LayoutDocumentItem();
+          //documentItem.Attach(document);
+          //ApplyStyleToLayoutItem(documentItem);
+          //_layoutItems.Add(documentItem);
         }
-
-        /// <summary>
-        /// Handles changes to the LayoutItemContainerStyle property.
-        /// </summary>
-        private static void OnLayoutItemContainerStyleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        foreach( var anchorable in Layout.Descendents().OfType<LayoutAnchorable>().ToArray() )
         {
-            ((DockingManager)d).OnLayoutItemContainerStyleChanged(e);
+          CreateAnchorableLayoutItem( anchorable );
+          //var anchorableItem = new LayoutAnchorableItem();
+          //anchorableItem.Attach(anchorable);
+          //ApplyStyleToLayoutItem(anchorableItem);
+          //_layoutItems.Add(anchorableItem);
         }
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the LayoutItemContainerStyle property.
-        /// </summary>
-        protected virtual void OnLayoutItemContainerStyleChanged(DependencyPropertyChangedEventArgs e)
+        Layout.ElementAdded += new EventHandler<LayoutElementEventArgs>( Layout_ElementAdded );
+        Layout.ElementRemoved += new EventHandler<LayoutElementEventArgs>( Layout_ElementRemoved );
+      }
+    }
+
+    void ApplyStyleToLayoutItem( LayoutItem layoutItem )
+    {
+      layoutItem._ClearDefaultBindings();
+      if( LayoutItemContainerStyle != null )
+        layoutItem.Style = LayoutItemContainerStyle;
+      else if( LayoutItemContainerStyleSelector != null )
+        layoutItem.Style = LayoutItemContainerStyleSelector.SelectStyle( layoutItem.Model, layoutItem );
+      layoutItem._SetDefaultBindings();
+    }
+
+    void CreateAnchorableLayoutItem( LayoutAnchorable contentToAttach )
+    {
+      if( _layoutItems.Any( item => item.LayoutElement == contentToAttach ) )
+      {
+        foreach( var item in _layoutItems )
         {
-            AttachLayoutItems();
+          ApplyStyleToLayoutItem( item );
         }
+        return;
+      }
 
-        #endregion
+      var layoutItem = new LayoutAnchorableItem();
+      layoutItem.Attach( contentToAttach );
+      ApplyStyleToLayoutItem( layoutItem );
+      _layoutItems.Add( layoutItem );
 
-        #region LayoutItemContainerStyleSelector
+      if( contentToAttach != null &&
+          contentToAttach.Content != null &&
+          contentToAttach.Content is UIElement )
+      {
+        InternalAddLogicalChild( contentToAttach.Content );
+      }
 
-        /// <summary>
-        /// LayoutItemContainerStyleSelector Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty LayoutItemContainerStyleSelectorProperty =
-            DependencyProperty.Register("LayoutItemContainerStyleSelector", typeof(StyleSelector), typeof(DockingManager),
-                new FrameworkPropertyMetadata((StyleSelector)null,
-                    new PropertyChangedCallback(OnLayoutItemContainerStyleSelectorChanged)));
+    }
 
-        /// <summary>
-        /// Gets or sets the LayoutItemContainerStyleSelector property.  This dependency property 
-        /// indicates style selector of the LayoutDocumentItemStyle.
-        /// </summary>
-        public StyleSelector LayoutItemContainerStyleSelector
+    void CreateDocumentLayoutItem( LayoutDocument contentToAttach )
+    {
+      if( _layoutItems.Any( item => item.LayoutElement == contentToAttach ) )
+      {
+        foreach( var item in _layoutItems )
         {
-            get { return (StyleSelector)GetValue(LayoutItemContainerStyleSelectorProperty); }
-            set { SetValue(LayoutItemContainerStyleSelectorProperty, value); }
+          ApplyStyleToLayoutItem( item );
         }
+        return;
+      }
 
-        /// <summary>
-        /// Handles changes to the LayoutItemContainerStyleSelector property.
-        /// </summary>
-        private static void OnLayoutItemContainerStyleSelectorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
-        {
-            ((DockingManager)d).OnLayoutItemContainerStyleSelectorChanged(e);
-        }
+      var layoutItem = new LayoutDocumentItem();
+      layoutItem.Attach( contentToAttach );
+      ApplyStyleToLayoutItem( layoutItem );
+      _layoutItems.Add( layoutItem );
 
-        /// <summary>
-        /// Provides derived classes an opportunity to handle changes to the LayoutItemContainerStyleSelector property.
-        /// </summary>
-        protected virtual void OnLayoutItemContainerStyleSelectorChanged(DependencyPropertyChangedEventArgs e)
-        {
-            AttachLayoutItems();
-        }
+      if( contentToAttach != null &&
+          contentToAttach.Content != null &&
+          contentToAttach.Content is UIElement )
+      {
+        InternalAddLogicalChild( contentToAttach.Content );
+      }
 
-        #endregion
+    }
 
-        /// <summary>
-        /// Return the LayoutItem wrapper for the content passed as argument
-        /// </summary>
-        /// <param name="content">LayoutContent to search</param>
-        /// <returns>Either a LayoutAnchorableItem or LayoutDocumentItem which contains the LayoutContent passed as argument</returns>
-        public LayoutItem GetLayoutItemFromModel(LayoutContent content)
-        {
-            return _layoutItems.FirstOrDefault(item => item.LayoutElement == content);
-        }
-        #endregion
+    #region LayoutItemContainerStyle
+
+    /// <summary>
+    /// LayoutItemContainerStyle Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutItemContainerStyleProperty =
+        DependencyProperty.Register( "LayoutItemContainerStyle", typeof( Style ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( Style )null,
+                new PropertyChangedCallback( OnLayoutItemContainerStyleChanged ) ) );
+
+    /// <summary>
+    /// Gets or sets the LayoutItemContainerStyle property.  This dependency property 
+    /// indicates the style to apply to LayoutDocumentItem objects. A LayoutDocumentItem object is created when a new LayoutDocument is created inside the current Layout.
+    /// </summary>
+    public Style LayoutItemContainerStyle
+    {
+      get
+      {
+        return ( Style )GetValue( LayoutItemContainerStyleProperty );
+      }
+      set
+      {
+        SetValue( LayoutItemContainerStyleProperty, value );
+      }
+    }
 
-        #region NavigatorWindow
-        NavigatorWindow _navigatorWindow = null;
+    /// <summary>
+    /// Handles changes to the LayoutItemContainerStyle property.
+    /// </summary>
+    private static void OnLayoutItemContainerStyleChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutItemContainerStyleChanged( e );
+    }
 
-        void ShowNavigatorWindow()
-        {
-            if (_navigatorWindow == null)
-            {
-                _navigatorWindow = new NavigatorWindow(this)
-                { 
-                    Owner = Window.GetWindow(this),
-                    WindowStartupLocation = WindowStartupLocation.CenterOwner
-                };
-            }
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the LayoutItemContainerStyle property.
+    /// </summary>
+    protected virtual void OnLayoutItemContainerStyleChanged( DependencyPropertyChangedEventArgs e )
+    {
+      AttachLayoutItems();
+    }
 
-            _navigatorWindow.ShowDialog();
-            _navigatorWindow = null;
-        }
+    #endregion
 
-        bool IsNavigatorWindowActive
-        {
-            get { return _navigatorWindow != null; }
-        }
+    #region LayoutItemContainerStyleSelector
 
+    /// <summary>
+    /// LayoutItemContainerStyleSelector Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty LayoutItemContainerStyleSelectorProperty =
+        DependencyProperty.Register( "LayoutItemContainerStyleSelector", typeof( StyleSelector ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( StyleSelector )null,
+                new PropertyChangedCallback( OnLayoutItemContainerStyleSelectorChanged ) ) );
 
-        protected override void OnPreviewKeyDown(KeyEventArgs e)
-        {
-            if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
-            {
-                if (e.IsDown && e.Key == Key.Tab)
-                {
-                    if (!IsNavigatorWindowActive)
-                    {
-                        ShowNavigatorWindow();
-                        e.Handled = true;
-                    }
-                }
-            }
+    /// <summary>
+    /// Gets or sets the LayoutItemContainerStyleSelector property.  This dependency property 
+    /// indicates style selector of the LayoutDocumentItemStyle.
+    /// </summary>
+    public StyleSelector LayoutItemContainerStyleSelector
+    {
+      get
+      {
+        return ( StyleSelector )GetValue( LayoutItemContainerStyleSelectorProperty );
+      }
+      set
+      {
+        SetValue( LayoutItemContainerStyleSelectorProperty, value );
+      }
+    }
 
-            base.OnPreviewKeyDown(e);
-        }
+    /// <summary>
+    /// Handles changes to the LayoutItemContainerStyleSelector property.
+    /// </summary>
+    private static void OnLayoutItemContainerStyleSelectorChanged( DependencyObject d, DependencyPropertyChangedEventArgs e )
+    {
+      ( ( DockingManager )d ).OnLayoutItemContainerStyleSelectorChanged( e );
+    }
+
+    /// <summary>
+    /// Provides derived classes an opportunity to handle changes to the LayoutItemContainerStyleSelector property.
+    /// </summary>
+    protected virtual void OnLayoutItemContainerStyleSelectorChanged( DependencyPropertyChangedEventArgs e )
+    {
+      AttachLayoutItems();
+    }
 
-        #endregion
+    #endregion
 
-        #region ShowSystemMenu
+    /// <summary>
+    /// Return the LayoutItem wrapper for the content passed as argument
+    /// </summary>
+    /// <param name="content">LayoutContent to search</param>
+    /// <returns>Either a LayoutAnchorableItem or LayoutDocumentItem which contains the LayoutContent passed as argument</returns>
+    public LayoutItem GetLayoutItemFromModel( LayoutContent content )
+    {
+      return _layoutItems.FirstOrDefault( item => item.LayoutElement == content );
+    }
+    #endregion
 
-        /// <summary>
-        /// ShowSystemMenu Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty ShowSystemMenuProperty =
-            DependencyProperty.Register("ShowSystemMenu", typeof(bool), typeof(DockingManager),
-                new FrameworkPropertyMetadata((bool)true));
+    #region NavigatorWindow
+    NavigatorWindow _navigatorWindow = null;
 
-        /// <summary>
-        /// Gets or sets the ShowSystemMenu property.  This dependency property 
-        /// indicates if floating windows should show the system menu when a custom context menu is not defined.
-        /// </summary>
-        public bool ShowSystemMenu
+    void ShowNavigatorWindow()
+    {
+      if( _navigatorWindow == null )
+      {
+        _navigatorWindow = new NavigatorWindow( this )
         {
-            get { return (bool)GetValue(ShowSystemMenuProperty); }
-            set { SetValue(ShowSystemMenuProperty, value); }
-        }
+          Owner = Window.GetWindow( this ),
+          WindowStartupLocation = WindowStartupLocation.CenterOwner
+        };
+      }
 
-        #endregion
+      _navigatorWindow.ShowDialog();
+      _navigatorWindow = null;
+    }
 
-        #region AllowMixedOrientation
+    bool IsNavigatorWindowActive
+    {
+      get
+      {
+        return _navigatorWindow != null;
+      }
+    }
 
-        /// <summary>
-        /// AllowMixedOrientation Dependency Property
-        /// </summary>
-        public static readonly DependencyProperty AllowMixedOrientationProperty =
-            DependencyProperty.Register("AllowMixedOrientation", typeof(bool), typeof(DockingManager),
-                new FrameworkPropertyMetadata((bool)false));
 
-        /// <summary>
-        /// Gets or sets the AllowMixedOrientation property.  This dependency property 
-        /// indicates if the manager should allow mixed orientation for document panes.
-        /// </summary>
-        public bool AllowMixedOrientation
+    protected override void OnPreviewKeyDown( KeyEventArgs e )
+    {
+      if( Keyboard.IsKeyDown( Key.LeftCtrl ) || Keyboard.IsKeyDown( Key.RightCtrl ) )
+      {
+        if( e.IsDown && e.Key == Key.Tab )
         {
-            get { return (bool)GetValue(AllowMixedOrientationProperty); }
-            set { SetValue(AllowMixedOrientationProperty, value); }
+          if( !IsNavigatorWindowActive )
+          {
+            ShowNavigatorWindow();
+            e.Handled = true;
+          }
         }
+      }
+
+      base.OnPreviewKeyDown( e );
+    }
+
+    #endregion
+
+    #region ShowSystemMenu
+
+    /// <summary>
+    /// ShowSystemMenu Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty ShowSystemMenuProperty =
+        DependencyProperty.Register( "ShowSystemMenu", typeof( bool ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( bool )true ) );
+
+    /// <summary>
+    /// Gets or sets the ShowSystemMenu property.  This dependency property 
+    /// indicates if floating windows should show the system menu when a custom context menu is not defined.
+    /// </summary>
+    public bool ShowSystemMenu
+    {
+      get
+      {
+        return ( bool )GetValue( ShowSystemMenuProperty );
+      }
+      set
+      {
+        SetValue( ShowSystemMenuProperty, value );
+      }
+    }
 
-        #endregion
+    #endregion
 
+    #region AllowMixedOrientation
 
+    /// <summary>
+    /// AllowMixedOrientation Dependency Property
+    /// </summary>
+    public static readonly DependencyProperty AllowMixedOrientationProperty =
+        DependencyProperty.Register( "AllowMixedOrientation", typeof( bool ), typeof( DockingManager ),
+            new FrameworkPropertyMetadata( ( bool )false ) );
+
+    /// <summary>
+    /// Gets or sets the AllowMixedOrientation property.  This dependency property 
+    /// indicates if the manager should allow mixed orientation for document panes.
+    /// </summary>
+    public bool AllowMixedOrientation
+    {
+      get
+      {
+        return ( bool )GetValue( AllowMixedOrientationProperty );
+      }
+      set
+      {
+        SetValue( AllowMixedOrientationProperty, value );
+      }
     }
+
+    #endregion
+
+
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutAnchorable.cs b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutAnchorable.cs
index 6a3397f2..79960887 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutAnchorable.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutAnchorable.cs
@@ -26,622 +26,670 @@ This program is provided to you under the terms of the Microsoft Public
 
 namespace Xceed.Wpf.AvalonDock.Layout
 {
-    [Serializable]
-    public class LayoutAnchorable : LayoutContent
+  [Serializable]
+  public class LayoutAnchorable : LayoutContent
+  {
+    public LayoutAnchorable()
     {
-        #region IsVisible
-        [XmlIgnore]
-        public bool IsVisible
-        {
-            get
-            {
-                return Parent != null && !(Parent is LayoutRoot);
-            }
-            set
-            {
-                if (value)
-                {
-                    Show();
-                }
-                else
-                {
-                    Hide();
-                }
-            }
-        }
-
-        public event EventHandler IsVisibleChanged;
+      // LayoutAnchorable will hide by default, not close.
+      _canClose = false;
+    }
 
-        void NotifyIsVisibleChanged()
+    #region IsVisible
+    [XmlIgnore]
+    public bool IsVisible
+    {
+      get
+      {
+        return Parent != null && !( Parent is LayoutRoot );
+      }
+      set
+      {
+        if( value )
         {
-            if (IsVisibleChanged != null)
-                IsVisibleChanged(this, EventArgs.Empty);
+          Show();
         }
-
-        [XmlIgnore]
-        public bool IsHidden
+        else
         {
-            get
-            {
-                return (Parent is LayoutRoot);
-            }
+          Hide();
         }
+      }
+    }
 
-        protected override void OnParentChanged(ILayoutContainer oldValue, ILayoutContainer newValue)
-        {
-            UpdateParentVisibility();
-            RaisePropertyChanged("IsVisible");
-            NotifyIsVisibleChanged();
-            RaisePropertyChanged("IsHidden");
-            RaisePropertyChanged("IsAutoHidden");
-            base.OnParentChanged(oldValue, newValue);
-        }
+    public event EventHandler IsVisibleChanged;
 
-        void UpdateParentVisibility()
-        {
-            var parentPane = Parent as ILayoutElementWithVisibility;
-            if (parentPane != null)
-                parentPane.ComputeVisibility();
-        }
+    void NotifyIsVisibleChanged()
+    {
+      if( IsVisibleChanged != null )
+        IsVisibleChanged( this, EventArgs.Empty );
+    }
 
-        #endregion
+    [XmlIgnore]
+    public bool IsHidden
+    {
+      get
+      {
+        return ( Parent is LayoutRoot );
+      }
+    }
+
+    protected override void OnParentChanged( ILayoutContainer oldValue, ILayoutContainer newValue )
+    {
+      UpdateParentVisibility();
+      RaisePropertyChanged( "IsVisible" );
+      NotifyIsVisibleChanged();
+      RaisePropertyChanged( "IsHidden" );
+      RaisePropertyChanged( "IsAutoHidden" );
+      base.OnParentChanged( oldValue, newValue );
+    }
+
+    void UpdateParentVisibility()
+    {
+      var parentPane = Parent as ILayoutElementWithVisibility;
+      if( parentPane != null )
+        parentPane.ComputeVisibility();
+    }
+
+    #endregion
 
-        #region AutoHideWidth
+    #region AutoHideWidth
 
-        private double _autohideWidth = 0.0;
-        public double AutoHideWidth
+    private double _autohideWidth = 0.0;
+    public double AutoHideWidth
+    {
+      get
+      {
+        return _autohideWidth;
+      }
+      set
+      {
+        if( _autohideWidth != value )
         {
-            get { return _autohideWidth; }
-            set
-            {
-                if (_autohideWidth != value)
-                {
-                    RaisePropertyChanging("AutoHideWidth");
-                    value = Math.Max(value, _autohideMinWidth);
-                    _autohideWidth = value;
-                    RaisePropertyChanged("AutoHideWidth");
-                }
-            }
+          RaisePropertyChanging( "AutoHideWidth" );
+          value = Math.Max( value, _autohideMinWidth );
+          _autohideWidth = value;
+          RaisePropertyChanged( "AutoHideWidth" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region AutoHideMinWidth
+    #region AutoHideMinWidth
 
-        private double _autohideMinWidth = 100.0;
-        public double AutoHideMinWidth
+    private double _autohideMinWidth = 100.0;
+    public double AutoHideMinWidth
+    {
+      get
+      {
+        return _autohideMinWidth;
+      }
+      set
+      {
+        if( _autohideMinWidth != value )
         {
-            get { return _autohideMinWidth; }
-            set
-            {
-                if (_autohideMinWidth != value)
-                {
-                    RaisePropertyChanging("AutoHideMinWidth");
-                    if (value < 0)
-                        throw new ArgumentException("value");
-                    _autohideMinWidth = value;
-                    RaisePropertyChanged("AutoHideMinWidth");
-                }
-            }
+          RaisePropertyChanging( "AutoHideMinWidth" );
+          if( value < 0 )
+            throw new ArgumentException( "value" );
+          _autohideMinWidth = value;
+          RaisePropertyChanged( "AutoHideMinWidth" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region AutoHideHeight
+    #region AutoHideHeight
 
-        private double _autohideHeight = 0.0;
-        public double AutoHideHeight
+    private double _autohideHeight = 0.0;
+    public double AutoHideHeight
+    {
+      get
+      {
+        return _autohideHeight;
+      }
+      set
+      {
+        if( _autohideHeight != value )
         {
-            get { return _autohideHeight; }
-            set
-            {
-                if (_autohideHeight != value)
-                {
-                    RaisePropertyChanging("AutoHideHeight");
-                    value = Math.Max(value, _autohideMinHeight);
-                    _autohideHeight = value;
-                    RaisePropertyChanged("AutoHideHeight");
-                }
-            }
+          RaisePropertyChanging( "AutoHideHeight" );
+          value = Math.Max( value, _autohideMinHeight );
+          _autohideHeight = value;
+          RaisePropertyChanged( "AutoHideHeight" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region AutoHideMinHeight
+    #region AutoHideMinHeight
 
-        private double _autohideMinHeight = 100.0;
-        public double AutoHideMinHeight
+    private double _autohideMinHeight = 100.0;
+    public double AutoHideMinHeight
+    {
+      get
+      {
+        return _autohideMinHeight;
+      }
+      set
+      {
+        if( _autohideMinHeight != value )
         {
-            get { return _autohideMinHeight; }
-            set
-            {
-                if (_autohideMinHeight != value)
-                {
-                    RaisePropertyChanging("AutoHideMinHeight");
-                    if (value < 0)
-                        throw new ArgumentException("value");
-                    _autohideMinHeight = value;
-                    RaisePropertyChanged("AutoHideMinHeight");
-                }
-            }
+          RaisePropertyChanging( "AutoHideMinHeight" );
+          if( value < 0 )
+            throw new ArgumentException( "value" );
+          _autohideMinHeight = value;
+          RaisePropertyChanged( "AutoHideMinHeight" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        /// <summary>
-        /// Hide this contents
-        /// </summary>
-        /// <remarks>Add this content to <see cref="ILayoutRoot.Hidden"/> collection of parent root.</remarks>
-        public void Hide(bool cancelable = true)
-        {
-            if (!IsVisible)
-            {
-                IsSelected = true;
-                IsActive = true;
-                return;
-            }
+    /// <summary>
+    /// Hide this contents
+    /// </summary>
+    /// <remarks>Add this content to <see cref="ILayoutRoot.Hidden"/> collection of parent root.</remarks>
+    public void Hide( bool cancelable = true )
+    {
+      if( !IsVisible )
+      {
+        IsSelected = true;
+        IsActive = true;
+        return;
+      }
+
+      if( cancelable )
+      {
+        CancelEventArgs args = new CancelEventArgs();
+        OnHiding( args );
+        if( args.Cancel )
+          return;
+      }
+
+      RaisePropertyChanging( "IsHidden" );
+      RaisePropertyChanging( "IsVisible" );
+      //if (Parent is ILayoutPane)
+      {
+        var parentAsGroup = Parent as ILayoutGroup;
+        PreviousContainer = parentAsGroup;
+        PreviousContainerIndex = parentAsGroup.IndexOfChild( this );
+      }
+      Root.Hidden.Add( this );
+      RaisePropertyChanged( "IsVisible" );
+      RaisePropertyChanged( "IsHidden" );
+      NotifyIsVisibleChanged();
+    }
 
-            if (cancelable)
-            {
-                CancelEventArgs args = new CancelEventArgs();
-                OnHiding(args);
-                if (args.Cancel)
-                    return;
-            }
+    public event EventHandler<CancelEventArgs> Hiding;
 
-            RaisePropertyChanging("IsHidden");
-            RaisePropertyChanging("IsVisible");
-            //if (Parent is ILayoutPane)
-            {
-                var parentAsGroup = Parent as ILayoutGroup;
-                PreviousContainer = parentAsGroup;
-                PreviousContainerIndex = parentAsGroup.IndexOfChild(this);
-            }
-            Root.Hidden.Add(this);
-            RaisePropertyChanged("IsVisible");
-            RaisePropertyChanged("IsHidden");
-            NotifyIsVisibleChanged();
-        }
+    protected virtual void OnHiding( CancelEventArgs args )
+    {
+      if( Hiding != null )
+        Hiding( this, args );
+    }
 
-        public event EventHandler<CancelEventArgs> Hiding;
 
-        protected virtual void OnHiding(CancelEventArgs args)
+    /// <summary>
+    /// Show the content
+    /// </summary>
+    /// <remarks>Try to show the content where it was previously hidden.</remarks>
+    public void Show()
+    {
+      if( IsVisible )
+        return;
+
+      if( !IsHidden )
+        throw new InvalidOperationException();
+
+      RaisePropertyChanging( "IsHidden" );
+      RaisePropertyChanging( "IsVisible" );
+
+      bool added = false;
+      var root = Root;
+      if( root != null && root.Manager != null )
+      {
+        if( root.Manager.LayoutUpdateStrategy != null )
+          added = root.Manager.LayoutUpdateStrategy.BeforeInsertAnchorable( root as LayoutRoot, this, PreviousContainer );
+      }
+
+      if( !added && PreviousContainer != null )
+      {
+        var previousContainerAsLayoutGroup = PreviousContainer as ILayoutGroup;
+        if( PreviousContainerIndex < previousContainerAsLayoutGroup.ChildrenCount )
+          previousContainerAsLayoutGroup.InsertChildAt( PreviousContainerIndex, this );
+        else
+          previousContainerAsLayoutGroup.InsertChildAt( previousContainerAsLayoutGroup.ChildrenCount, this );
+        IsSelected = true;
+        IsActive = true;
+      }
+
+      if( root != null && root.Manager != null )
+      {
+        if( root.Manager.LayoutUpdateStrategy != null )
         {
-            if (Hiding != null)
-                Hiding(this, args);
+          root.Manager.LayoutUpdateStrategy.AfterInsertAnchorable( root as LayoutRoot, this );
         }
+      }
 
+      PreviousContainer = null;
+      PreviousContainerIndex = -1;
 
-        /// <summary>
-        /// Show the content
-        /// </summary>
-        /// <remarks>Try to show the content where it was previously hidden.</remarks>
-        public void Show()
+      RaisePropertyChanged( "IsVisible" );
+      RaisePropertyChanged( "IsHidden" );
+      NotifyIsVisibleChanged();
+    }
+
+    protected override void InternalDock()
+    {
+      var root = Root as LayoutRoot;
+      LayoutAnchorablePane anchorablePane = null;
+
+      if( root.ActiveContent != null &&
+          root.ActiveContent != this )
+      {
+        //look for active content parent pane
+        anchorablePane = root.ActiveContent.Parent as LayoutAnchorablePane;
+      }
+
+      if( anchorablePane == null )
+      {
+        //look for a pane on the right side
+        anchorablePane = root.Descendents().OfType<LayoutAnchorablePane>().Where( pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right ).FirstOrDefault();
+      }
+
+      if( anchorablePane == null )
+      {
+        //look for an available pane
+        anchorablePane = root.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
+      }
+
+
+      bool added = false;
+      if( root.Manager.LayoutUpdateStrategy != null )
+      {
+        added = root.Manager.LayoutUpdateStrategy.BeforeInsertAnchorable( root, this, anchorablePane );
+      }
+
+      if( !added )
+      {
+        if( anchorablePane == null )
         {
-            if (IsVisible)
-                return;
+          var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
+          if( root.RootPanel != null )
+          {
+            mainLayoutPanel.Children.Add( root.RootPanel );
+          }
 
-            if (!IsHidden)
-                throw new InvalidOperationException();
+          root.RootPanel = mainLayoutPanel;
+          anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength( 200.0, GridUnitType.Pixel ) };
+          mainLayoutPanel.Children.Add( anchorablePane );
+        }
 
-            RaisePropertyChanging("IsHidden");
-            RaisePropertyChanging("IsVisible");
+        anchorablePane.Children.Add( this );
+        added = true;
+      }
 
-            bool added = false;
-            var root = Root;
-            if (root != null && root.Manager != null)
-            {
-                if (root.Manager.LayoutUpdateStrategy != null)
-                    added = root.Manager.LayoutUpdateStrategy.BeforeInsertAnchorable(root as LayoutRoot, this, PreviousContainer);
-            }
+      if( root.Manager.LayoutUpdateStrategy != null )
+      {
+        root.Manager.LayoutUpdateStrategy.AfterInsertAnchorable( root, this );
+      }
 
-            if (!added && PreviousContainer != null)
-            {
-                var previousContainerAsLayoutGroup = PreviousContainer as ILayoutGroup;
-                if (PreviousContainerIndex < previousContainerAsLayoutGroup.ChildrenCount)
-                    previousContainerAsLayoutGroup.InsertChildAt(PreviousContainerIndex, this);
-                else
-                    previousContainerAsLayoutGroup.InsertChildAt(previousContainerAsLayoutGroup.ChildrenCount, this);
-                IsSelected = true;
-                IsActive = true;
-            }
+      base.InternalDock();
+    }
 
-            if (root != null && root.Manager != null)
-            {
-                if (root.Manager.LayoutUpdateStrategy != null)
-                {
-                    root.Manager.LayoutUpdateStrategy.AfterInsertAnchorable(root as LayoutRoot, this);
-                }
-            }
+    /// <summary>
+    /// Add the anchorable to a DockingManager layout
+    /// </summary>
+    /// <param name="manager"></param>
+    /// <param name="strategy"></param>
+    public void AddToLayout( DockingManager manager, AnchorableShowStrategy strategy )
+    {
+      if( IsVisible ||
+          IsHidden )
+        throw new InvalidOperationException();
+
+
+      bool most = ( strategy & AnchorableShowStrategy.Most ) == AnchorableShowStrategy.Most;
+      bool left = ( strategy & AnchorableShowStrategy.Left ) == AnchorableShowStrategy.Left;
+      bool right = ( strategy & AnchorableShowStrategy.Right ) == AnchorableShowStrategy.Right;
+      bool top = ( strategy & AnchorableShowStrategy.Top ) == AnchorableShowStrategy.Top;
+      bool bottom = ( strategy & AnchorableShowStrategy.Bottom ) == AnchorableShowStrategy.Bottom;
+
+      if( !most )
+      {
+        var side = AnchorSide.Left;
+        if( left )
+          side = AnchorSide.Left;
+        if( right )
+          side = AnchorSide.Right;
+        if( top )
+          side = AnchorSide.Top;
+        if( bottom )
+          side = AnchorSide.Bottom;
+
+        var anchorablePane = manager.Layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault( p => p.GetSide() == side );
+        if( anchorablePane != null )
+          anchorablePane.Children.Add( this );
+        else
+          most = true;
+      }
+
+
+      if( most )
+      {
+        if( manager.Layout.RootPanel == null )
+          manager.Layout.RootPanel = new LayoutPanel() { Orientation = ( left || right ? Orientation.Horizontal : Orientation.Vertical ) };
+
+        if( left || right )
+        {
+          if( manager.Layout.RootPanel.Orientation == Orientation.Vertical &&
+              manager.Layout.RootPanel.ChildrenCount > 1 )
+          {
+            manager.Layout.RootPanel = new LayoutPanel( manager.Layout.RootPanel );
+          }
 
-            PreviousContainer = null;
-            PreviousContainerIndex = -1;
+          manager.Layout.RootPanel.Orientation = Orientation.Horizontal;
 
-            RaisePropertyChanged("IsVisible");
-            RaisePropertyChanged("IsHidden");
-            NotifyIsVisibleChanged();
+          if( left )
+            manager.Layout.RootPanel.Children.Insert( 0, new LayoutAnchorablePane( this ) );
+          else
+            manager.Layout.RootPanel.Children.Add( new LayoutAnchorablePane( this ) );
         }
-
-        protected override void InternalDock()
+        else
         {
-            var root = Root as LayoutRoot;
-            LayoutAnchorablePane anchorablePane = null;
-
-            if (root.ActiveContent != null &&
-                root.ActiveContent != this)
-            {
-                //look for active content parent pane
-                anchorablePane = root.ActiveContent.Parent as LayoutAnchorablePane;
-            }
+          if( manager.Layout.RootPanel.Orientation == Orientation.Horizontal &&
+              manager.Layout.RootPanel.ChildrenCount > 1 )
+          {
+            manager.Layout.RootPanel = new LayoutPanel( manager.Layout.RootPanel );
+          }
 
-            if (anchorablePane == null)
-            {
-                //look for a pane on the right side
-                anchorablePane = root.Descendents().OfType<LayoutAnchorablePane>().Where(pane => !pane.IsHostedInFloatingWindow && pane.GetSide() == AnchorSide.Right).FirstOrDefault();
-            }
+          manager.Layout.RootPanel.Orientation = Orientation.Vertical;
 
-            if (anchorablePane == null)
-            {
-                //look for an available pane
-                anchorablePane = root.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault();
-            }
+          if( top )
+            manager.Layout.RootPanel.Children.Insert( 0, new LayoutAnchorablePane( this ) );
+          else
+            manager.Layout.RootPanel.Children.Add( new LayoutAnchorablePane( this ) );
+        }
 
+      }
+    }
 
-            bool added = false;
-            if (root.Manager.LayoutUpdateStrategy != null)
-            {
-                added = root.Manager.LayoutUpdateStrategy.BeforeInsertAnchorable(root, this, anchorablePane);
-            }
 
-            if (!added)
-            {
-                if (anchorablePane == null)
-                {
-                    var mainLayoutPanel = new LayoutPanel() { Orientation = Orientation.Horizontal };
-                    if (root.RootPanel != null)
-                    {
-                        mainLayoutPanel.Children.Add(root.RootPanel);
-                    }
-
-                    root.RootPanel = mainLayoutPanel;
-                    anchorablePane = new LayoutAnchorablePane() { DockWidth = new GridLength(200.0, GridUnitType.Pixel) };
-                    mainLayoutPanel.Children.Add(anchorablePane);
-                }
-
-                anchorablePane.Children.Add(this);
-                added = true;
-            }
+    /// <summary>
+    /// Get a value indicating if the anchorable is anchored to a border in an autohide status
+    /// </summary>
+    public bool IsAutoHidden
+    {
+      get
+      {
+        return Parent != null && Parent is LayoutAnchorGroup;
+      }
+    }
 
-            if (root.Manager.LayoutUpdateStrategy != null)
-            {
-                root.Manager.LayoutUpdateStrategy.AfterInsertAnchorable(root, this);
-            }
 
-            base.InternalDock();
+    #region AutoHide
+    public void ToggleAutoHide()
+    {
+      #region Anchorable is already auto hidden
+      if( IsAutoHidden )
+      {
+        var parentGroup = Parent as LayoutAnchorGroup;
+        var parentSide = parentGroup.Parent as LayoutAnchorSide;
+        var previousContainer = ( ( ILayoutPreviousContainer )parentGroup ).PreviousContainer as LayoutAnchorablePane;
+
+        if( previousContainer == null )
+        {
+          AnchorSide side = ( parentGroup.Parent as LayoutAnchorSide ).Side;
+          switch( side )
+          {
+            case AnchorSide.Right:
+              if( parentGroup.Root.RootPanel.Orientation == Orientation.Horizontal )
+              {
+                previousContainer = new LayoutAnchorablePane();
+                previousContainer.DockMinWidth = this.AutoHideMinWidth;
+                parentGroup.Root.RootPanel.Children.Add( previousContainer );
+              }
+              else
+              {
+                previousContainer = new LayoutAnchorablePane();
+                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Horizontal };
+                LayoutRoot root = parentGroup.Root as LayoutRoot;
+                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
+                root.RootPanel = panel;
+                panel.Children.Add( oldRootPanel );
+                panel.Children.Add( previousContainer );
+              }
+              break;
+            case AnchorSide.Left:
+              if( parentGroup.Root.RootPanel.Orientation == Orientation.Horizontal )
+              {
+                previousContainer = new LayoutAnchorablePane();
+                previousContainer.DockMinWidth = this.AutoHideMinWidth;
+                parentGroup.Root.RootPanel.Children.Insert( 0, previousContainer );
+              }
+              else
+              {
+                previousContainer = new LayoutAnchorablePane();
+                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Horizontal };
+                LayoutRoot root = parentGroup.Root as LayoutRoot;
+                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
+                root.RootPanel = panel;
+                panel.Children.Add( previousContainer );
+                panel.Children.Add( oldRootPanel );
+              }
+              break;
+            case AnchorSide.Top:
+              if( parentGroup.Root.RootPanel.Orientation == Orientation.Vertical )
+              {
+                previousContainer = new LayoutAnchorablePane();
+                previousContainer.DockMinHeight = this.AutoHideMinHeight;
+                parentGroup.Root.RootPanel.Children.Insert( 0, previousContainer );
+              }
+              else
+              {
+                previousContainer = new LayoutAnchorablePane();
+                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Vertical };
+                LayoutRoot root = parentGroup.Root as LayoutRoot;
+                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
+                root.RootPanel = panel;
+                panel.Children.Add( previousContainer );
+                panel.Children.Add( oldRootPanel );
+              }
+              break;
+            case AnchorSide.Bottom:
+              if( parentGroup.Root.RootPanel.Orientation == Orientation.Vertical )
+              {
+                previousContainer = new LayoutAnchorablePane();
+                previousContainer.DockMinHeight = this.AutoHideMinHeight;
+                parentGroup.Root.RootPanel.Children.Add( previousContainer );
+              }
+              else
+              {
+                previousContainer = new LayoutAnchorablePane();
+                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Vertical };
+                LayoutRoot root = parentGroup.Root as LayoutRoot;
+                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
+                root.RootPanel = panel;
+                panel.Children.Add( oldRootPanel );
+                panel.Children.Add( previousContainer );
+              }
+              break;
+          }
         }
-
-        /// <summary>
-        /// Add the anchorable to a DockingManager layout
-        /// </summary>
-        /// <param name="manager"></param>
-        /// <param name="strategy"></param>
-        public void AddToLayout(DockingManager manager, AnchorableShowStrategy strategy)
+        else
         {
-            if (IsVisible ||
-                IsHidden)
-                throw new InvalidOperationException();
-
-
-            bool most = (strategy & AnchorableShowStrategy.Most) == AnchorableShowStrategy.Most;
-            bool left = (strategy & AnchorableShowStrategy.Left) == AnchorableShowStrategy.Left;
-            bool right = (strategy & AnchorableShowStrategy.Right) == AnchorableShowStrategy.Right;
-            bool top = (strategy & AnchorableShowStrategy.Top) == AnchorableShowStrategy.Top;
-            bool bottom = (strategy & AnchorableShowStrategy.Bottom) == AnchorableShowStrategy.Bottom;
-
-            if (!most)
-            { 
-                var side = AnchorSide.Left;
-                if (left)
-                    side = AnchorSide.Left;
-                if (right)
-                    side = AnchorSide.Right;
-                if (top)
-                    side = AnchorSide.Top;
-                if (bottom)
-                    side = AnchorSide.Bottom;
-
-                var anchorablePane = manager.Layout.Descendents().OfType<LayoutAnchorablePane>().FirstOrDefault(p => p.GetSide() == side);
-                if (anchorablePane != null)
-                    anchorablePane.Children.Add(this);
-                else
-                    most = true;
-            }
-
-
-            if (most)
-            {
-                if (manager.Layout.RootPanel == null)
-                    manager.Layout.RootPanel = new LayoutPanel() { Orientation = (left || right ? Orientation.Horizontal : Orientation.Vertical) };
-
-                if (left || right)
-                {
-                    if (manager.Layout.RootPanel.Orientation == Orientation.Vertical &&
-                        manager.Layout.RootPanel.ChildrenCount > 1)
-                    {
-                        manager.Layout.RootPanel = new LayoutPanel(manager.Layout.RootPanel);
-                    }
-
-                    manager.Layout.RootPanel.Orientation = Orientation.Horizontal;
-
-                    if (left)
-                        manager.Layout.RootPanel.Children.Insert(0, new LayoutAnchorablePane(this));
-                    else
-                        manager.Layout.RootPanel.Children.Add(new LayoutAnchorablePane(this));
-                }
-                else
-                {
-                    if (manager.Layout.RootPanel.Orientation == Orientation.Horizontal &&
-                        manager.Layout.RootPanel.ChildrenCount > 1)
-                    {
-                        manager.Layout.RootPanel = new LayoutPanel(manager.Layout.RootPanel);
-                    }
-
-                    manager.Layout.RootPanel.Orientation = Orientation.Vertical;
-
-                    if (top)
-                        manager.Layout.RootPanel.Children.Insert(0, new LayoutAnchorablePane(this));
-                    else
-                        manager.Layout.RootPanel.Children.Add(new LayoutAnchorablePane(this));
-                }
+          //I'm about to remove parentGroup, redirect any content (ie hidden contents) that point to it
+          //to previousContainer
+          LayoutRoot root = parentGroup.Root as LayoutRoot;
+          foreach( var cnt in root.Descendents().OfType<ILayoutPreviousContainer>().Where( c => c.PreviousContainer == parentGroup ) )
+          {
+            cnt.PreviousContainer = previousContainer;
+          }
+        }
 
-            }
+        foreach( var anchorableToToggle in parentGroup.Children.ToArray() )
+        {
+          previousContainer.Children.Add( anchorableToToggle );
         }
 
+        parentSide.Children.Remove( parentGroup );
 
-        /// <summary>
-        /// Get a value indicating if the anchorable is anchored to a border in an autohide status
-        /// </summary>
-        public bool IsAutoHidden
+        var parent = previousContainer.Parent as LayoutGroupBase;
+        while( ( parent != null ) )
         {
-            get { return Parent != null && Parent is LayoutAnchorGroup; }
+          if( parent is LayoutGroup<ILayoutPanelElement> )
+          {
+            (( LayoutGroup<ILayoutPanelElement> )parent).ComputeVisibility();
+          }
+          parent = parent.Parent as LayoutGroupBase;
         }
+      }
+      #endregion
+      #region Anchorable is docked
+      else if( Parent is LayoutAnchorablePane )
+      {
+        var root = Root;
+        var parentPane = Parent as LayoutAnchorablePane;
+
+        var newAnchorGroup = new LayoutAnchorGroup();
+
+        ( ( ILayoutPreviousContainer )newAnchorGroup ).PreviousContainer = parentPane;
 
+        foreach( var anchorableToImport in parentPane.Children.ToArray() )
+          newAnchorGroup.Children.Add( anchorableToImport );
 
-        #region AutoHide
-        public void ToggleAutoHide()
+        //detect anchor side for the pane
+        var anchorSide = parentPane.GetSide();
+
+        switch( anchorSide )
         {
-            #region Anchorable is already auto hidden
-            if (IsAutoHidden)
+          case AnchorSide.Right:
+            if( root.RightSide != null )
             {
-                var parentGroup = Parent as LayoutAnchorGroup;
-                var parentSide = parentGroup.Parent as LayoutAnchorSide;
-                var previousContainer = ((ILayoutPreviousContainer)parentGroup).PreviousContainer as LayoutAnchorablePane;
-
-                if (previousContainer == null)
-                {
-                    AnchorSide side = (parentGroup.Parent as LayoutAnchorSide).Side;
-                    switch (side)
-                    {
-                        case AnchorSide.Right:
-                            if (parentGroup.Root.RootPanel.Orientation == Orientation.Horizontal)
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                previousContainer.DockMinWidth = this.AutoHideMinWidth;
-                                parentGroup.Root.RootPanel.Children.Add(previousContainer);
-                            }
-                            else
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Horizontal };
-                                LayoutRoot root = parentGroup.Root as LayoutRoot;
-                                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
-                                root.RootPanel = panel;
-                                panel.Children.Add(oldRootPanel);
-                                panel.Children.Add(previousContainer);
-                            }
-                            break;
-                        case AnchorSide.Left:
-                            if (parentGroup.Root.RootPanel.Orientation == Orientation.Horizontal)
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                previousContainer.DockMinWidth = this.AutoHideMinWidth;
-                                parentGroup.Root.RootPanel.Children.Insert(0, previousContainer);
-                            }
-                            else
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Horizontal };
-                                LayoutRoot root = parentGroup.Root as LayoutRoot;
-                                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
-                                root.RootPanel = panel;
-                                panel.Children.Add(previousContainer);
-                                panel.Children.Add(oldRootPanel);
-                            }
-                            break;
-                        case AnchorSide.Top:
-                            if (parentGroup.Root.RootPanel.Orientation == Orientation.Vertical)
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                previousContainer.DockMinHeight = this.AutoHideMinHeight;
-                                parentGroup.Root.RootPanel.Children.Insert(0, previousContainer);
-                            }
-                            else
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Vertical };
-                                LayoutRoot root = parentGroup.Root as LayoutRoot;
-                                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
-                                root.RootPanel = panel;
-                                panel.Children.Add(previousContainer);
-                                panel.Children.Add(oldRootPanel);
-                            }
-                            break;
-                        case AnchorSide.Bottom:
-                            if (parentGroup.Root.RootPanel.Orientation == Orientation.Vertical)
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                previousContainer.DockMinHeight = this.AutoHideMinHeight;
-                                parentGroup.Root.RootPanel.Children.Add(previousContainer);
-                            }
-                            else
-                            {
-                                previousContainer = new LayoutAnchorablePane();
-                                LayoutPanel panel = new LayoutPanel() { Orientation = Orientation.Vertical };
-                                LayoutRoot root = parentGroup.Root as LayoutRoot;
-                                LayoutPanel oldRootPanel = parentGroup.Root.RootPanel as LayoutPanel;
-                                root.RootPanel = panel;
-                                panel.Children.Add(oldRootPanel);
-                                panel.Children.Add(previousContainer);
-                            }
-                            break;
-                    }
-                }
-                else
-                { 
-                    //I'm about to remove parentGroup, redirect any content (ie hidden contents) that point to it
-                    //to previousContainer
-                    LayoutRoot root = parentGroup.Root as LayoutRoot;
-                    foreach (var cnt in root.Descendents().OfType<ILayoutPreviousContainer>().Where(c => c.PreviousContainer == parentGroup))
-                    {
-                        cnt.PreviousContainer = previousContainer;
-                    }
-                }
-
-
-                foreach (var anchorableToToggle in parentGroup.Children.ToArray())
-                {
-                    previousContainer.Children.Add(anchorableToToggle);
-                }
-
-                parentSide.Children.Remove(parentGroup);
+              root.RightSide.Children.Add( newAnchorGroup );
             }
-            #endregion
-            #region Anchorable is docked
-            else if (Parent is LayoutAnchorablePane)
+            break;
+          case AnchorSide.Left:
+            if( root.LeftSide != null )
             {
-                var root = Root;
-                var parentPane = Parent as LayoutAnchorablePane;
-
-                var newAnchorGroup = new LayoutAnchorGroup();
-
-                ((ILayoutPreviousContainer)newAnchorGroup).PreviousContainer = parentPane;
-
-                foreach (var anchorableToImport in parentPane.Children.ToArray())
-                    newAnchorGroup.Children.Add(anchorableToImport);
-
-                //detect anchor side for the pane
-                var anchorSide = parentPane.GetSide();
-
-                switch (anchorSide)
-                {
-                    case AnchorSide.Right:
-                        root.RightSide.Children.Add(newAnchorGroup);
-                        break;
-                    case AnchorSide.Left:
-                        root.LeftSide.Children.Add(newAnchorGroup);
-                        break;
-                    case AnchorSide.Top:
-                        root.TopSide.Children.Add(newAnchorGroup);
-                        break;
-                    case AnchorSide.Bottom:
-                        root.BottomSide.Children.Add(newAnchorGroup);
-                        break;
-                }
+              root.LeftSide.Children.Add( newAnchorGroup );
             }
-            #endregion
+            break;
+          case AnchorSide.Top:
+            if( root.TopSide != null )
+            {
+              root.TopSide.Children.Add( newAnchorGroup );
+            }
+            break;
+          case AnchorSide.Bottom:
+            if( root.BottomSide != null )
+            {
+              root.BottomSide.Children.Add( newAnchorGroup );
+            }
+            break;
         }
+      }
+      #endregion
+    }
 
-        #endregion
+    #endregion
 
-        #region CanHide
+    #region CanHide
 
-        private bool _canHide = true;
-        public bool CanHide
+    private bool _canHide = true;
+    public bool CanHide
+    {
+      get
+      {
+        return _canHide;
+      }
+      set
+      {
+        if( _canHide != value )
         {
-            get { return _canHide; }
-            set
-            {
-                if (_canHide != value)
-                {
-                    _canHide = value;
-                    RaisePropertyChanged("CanHide");
-                }
-            }
+          _canHide = value;
+          RaisePropertyChanged( "CanHide" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region CanAutoHide
+    #region CanAutoHide
 
-        private bool _canAutoHide = true;
-        public bool CanAutoHide
+    private bool _canAutoHide = true;
+    public bool CanAutoHide
+    {
+      get
+      {
+        return _canAutoHide;
+      }
+      set
+      {
+        if( _canAutoHide != value )
         {
-            get { return _canAutoHide; }
-            set
-            {
-                if (_canAutoHide != value)
-                {
-                    _canAutoHide = value;
-                    RaisePropertyChanged("CanAutoHide");
-                }
-            }
+          _canAutoHide = value;
+          RaisePropertyChanged( "CanAutoHide" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
 
-        public override void ReadXml(System.Xml.XmlReader reader)
-        {
-            if (reader.MoveToAttribute("CanHide"))
-                CanHide = bool.Parse(reader.Value);
-            if (reader.MoveToAttribute("CanAutoHide"))
-                CanAutoHide = bool.Parse(reader.Value);
-            if (reader.MoveToAttribute("AutoHideWidth"))
-                AutoHideWidth = double.Parse(reader.Value, CultureInfo.InvariantCulture);
-            if (reader.MoveToAttribute("AutoHideHeight"))
-                AutoHideHeight = double.Parse(reader.Value, CultureInfo.InvariantCulture);
-            if (reader.MoveToAttribute("AutoHideMinWidth"))
-                AutoHideMinWidth = double.Parse(reader.Value, CultureInfo.InvariantCulture);
-            if (reader.MoveToAttribute("AutoHideMinHeight"))
-                AutoHideMinHeight = double.Parse(reader.Value, CultureInfo.InvariantCulture);
-
-            base.ReadXml(reader);
-        }
+    public override void ReadXml( System.Xml.XmlReader reader )
+    {
+      if( reader.MoveToAttribute( "CanHide" ) )
+        CanHide = bool.Parse( reader.Value );
+      if( reader.MoveToAttribute( "CanAutoHide" ) )
+        CanAutoHide = bool.Parse( reader.Value );
+      if( reader.MoveToAttribute( "AutoHideWidth" ) )
+        AutoHideWidth = double.Parse( reader.Value, CultureInfo.InvariantCulture );
+      if( reader.MoveToAttribute( "AutoHideHeight" ) )
+        AutoHideHeight = double.Parse( reader.Value, CultureInfo.InvariantCulture );
+      if( reader.MoveToAttribute( "AutoHideMinWidth" ) )
+        AutoHideMinWidth = double.Parse( reader.Value, CultureInfo.InvariantCulture );
+      if( reader.MoveToAttribute( "AutoHideMinHeight" ) )
+        AutoHideMinHeight = double.Parse( reader.Value, CultureInfo.InvariantCulture );
+
+      base.ReadXml( reader );
+    }
 
-        public override void WriteXml(System.Xml.XmlWriter writer)
-        {
-            if (!CanHide)
-                writer.WriteAttributeString("CanHide", CanHide.ToString());
-            if (!CanAutoHide)
-                writer.WriteAttributeString("CanAutoHide", CanAutoHide.ToString(CultureInfo.InvariantCulture));
-            if (AutoHideWidth > 0)
-                writer.WriteAttributeString("AutoHideWidth", AutoHideWidth.ToString(CultureInfo.InvariantCulture));
-            if (AutoHideHeight > 0)
-                writer.WriteAttributeString("AutoHideHeight", AutoHideHeight.ToString(CultureInfo.InvariantCulture));
-            if (AutoHideMinWidth != 25.0)
-                writer.WriteAttributeString("AutoHideMinWidth", AutoHideMinWidth.ToString(CultureInfo.InvariantCulture));
-            if (AutoHideMinHeight != 25.0)
-                writer.WriteAttributeString("AutoHideMinHeight", AutoHideMinHeight.ToString(CultureInfo.InvariantCulture));
-
-
-            base.WriteXml(writer);
-        }
+    public override void WriteXml( System.Xml.XmlWriter writer )
+    {
+      if( !CanHide )
+        writer.WriteAttributeString( "CanHide", CanHide.ToString() );
+      if( !CanAutoHide )
+        writer.WriteAttributeString( "CanAutoHide", CanAutoHide.ToString( CultureInfo.InvariantCulture ) );
+      if( AutoHideWidth > 0 )
+        writer.WriteAttributeString( "AutoHideWidth", AutoHideWidth.ToString( CultureInfo.InvariantCulture ) );
+      if( AutoHideHeight > 0 )
+        writer.WriteAttributeString( "AutoHideHeight", AutoHideHeight.ToString( CultureInfo.InvariantCulture ) );
+      if( AutoHideMinWidth != 25.0 )
+        writer.WriteAttributeString( "AutoHideMinWidth", AutoHideMinWidth.ToString( CultureInfo.InvariantCulture ) );
+      if( AutoHideMinHeight != 25.0 )
+        writer.WriteAttributeString( "AutoHideMinHeight", AutoHideMinHeight.ToString( CultureInfo.InvariantCulture ) );
+
+
+      base.WriteXml( writer );
+    }
 
-        public override void Close()
-        {
-          this.CloseAnchorable();
-        }
+    public override void Close()
+    {
+      this.CloseAnchorable();
+    }
 
-        internal void CloseAnchorable()
-        {
-          if( this.TestCanClose() )
-          {
-            if( this.IsAutoHidden )
-              this.ToggleAutoHide();
+    internal void CloseAnchorable()
+    {
+      if( this.TestCanClose() )
+      {
+        if( this.IsAutoHidden )
+          this.ToggleAutoHide();
 
-            this.CloseInternal();
-          }
-        }
+        this.CloseInternal();
+      }
+    }
 
 
 #if TRACE
@@ -651,5 +699,5 @@ public override void ConsoleDump(int tab)
           System.Diagnostics.Trace.WriteLine( "Anchorable()" );
         }
 #endif
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutContent.cs b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutContent.cs
index 8133a135..b7d5d698 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutContent.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutContent.cs
@@ -744,7 +744,7 @@ protected virtual void InternalDock()
 
         #region CanClose
 
-        private bool _canClose = true;
+        internal bool _canClose = true;
         public bool CanClose
         {
             get { return _canClose; }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutRoot.cs b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutRoot.cs
index 879e06c0..521df935 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutRoot.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Layout/LayoutRoot.cs
@@ -28,930 +28,966 @@ This program is provided to you under the terms of the Microsoft Public
 
 namespace Xceed.Wpf.AvalonDock.Layout
 {
-    [ContentProperty("RootPanel")]
-    [Serializable]
-    public class LayoutRoot : LayoutElement, ILayoutContainer, ILayoutRoot, IXmlSerializable
+  [ContentProperty( "RootPanel" )]
+  [Serializable]
+  public class LayoutRoot : LayoutElement, ILayoutContainer, ILayoutRoot, IXmlSerializable
+  {
+    public LayoutRoot()
     {
-        public LayoutRoot()
-        { 
-            RightSide = new LayoutAnchorSide();
-            LeftSide = new LayoutAnchorSide();
-            TopSide = new LayoutAnchorSide();
-            BottomSide = new LayoutAnchorSide();
-            RootPanel = new LayoutPanel(new LayoutDocumentPane());
-        }
+      RightSide = new LayoutAnchorSide();
+      LeftSide = new LayoutAnchorSide();
+      TopSide = new LayoutAnchorSide();
+      BottomSide = new LayoutAnchorSide();
+      RootPanel = new LayoutPanel( new LayoutDocumentPane() );
+    }
 
 
-        #region RootPanel
+    #region RootPanel
 
-        private LayoutPanel _rootPanel;
-        public LayoutPanel RootPanel
+    private LayoutPanel _rootPanel;
+    public LayoutPanel RootPanel
+    {
+      get
+      {
+        return _rootPanel;
+      }
+      set
+      {
+        if( _rootPanel != value )
         {
-            get { return _rootPanel; }
-            set
-            {
-                if (_rootPanel != value)
-                {
-                    RaisePropertyChanging("RootPanel");
-                    if (_rootPanel != null &&
-                        _rootPanel.Parent == this)
-                        _rootPanel.Parent = null;
-                    _rootPanel = value;
-
-                    if (_rootPanel == null)
-                        _rootPanel = new LayoutPanel(new LayoutDocumentPane());
-
-                    if (_rootPanel != null)
-                        _rootPanel.Parent = this;
-                    RaisePropertyChanged("RootPanel");
-                }
-            }
+          RaisePropertyChanging( "RootPanel" );
+          if( _rootPanel != null &&
+              _rootPanel.Parent == this )
+            _rootPanel.Parent = null;
+          _rootPanel = value;
+
+          if( _rootPanel == null )
+            _rootPanel = new LayoutPanel( new LayoutDocumentPane() );
+
+          if( _rootPanel != null )
+            _rootPanel.Parent = this;
+          RaisePropertyChanged( "RootPanel" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region TopSide
+    #region TopSide
 
-        private LayoutAnchorSide _topSide = null;
-        public LayoutAnchorSide TopSide
+    private LayoutAnchorSide _topSide = null;
+    public LayoutAnchorSide TopSide
+    {
+      get
+      {
+        return _topSide;
+      }
+      set
+      {
+        if( _topSide != value )
         {
-            get { return _topSide; }
-            set
-            {
-                if (_topSide != value)
-                {
-                    RaisePropertyChanging("TopSide");
-                    _topSide = value;
-                    if (_topSide != null)
-                        _topSide.Parent = this;
-                    RaisePropertyChanged("TopSide");
-                }
-            }
+          RaisePropertyChanging( "TopSide" );
+          _topSide = value;
+          if( _topSide != null )
+            _topSide.Parent = this;
+          RaisePropertyChanged( "TopSide" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region RightSide
+    #region RightSide
 
-        private LayoutAnchorSide _rightSide;
-        public LayoutAnchorSide RightSide
+    private LayoutAnchorSide _rightSide;
+    public LayoutAnchorSide RightSide
+    {
+      get
+      {
+        return _rightSide;
+      }
+      set
+      {
+        if( _rightSide != value )
         {
-            get { return _rightSide; }
-            set
-            {
-                if (_rightSide != value)
-                {
-                    RaisePropertyChanging("RightSide");
-                    _rightSide = value;
-                    if (_rightSide != null)
-                        _rightSide.Parent = this;
-                    RaisePropertyChanged("RightSide");
-                }
-            }
+          RaisePropertyChanging( "RightSide" );
+          _rightSide = value;
+          if( _rightSide != null )
+            _rightSide.Parent = this;
+          RaisePropertyChanged( "RightSide" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region LeftSide
+    #region LeftSide
 
-        private LayoutAnchorSide _leftSide = null;
-        public LayoutAnchorSide LeftSide
+    private LayoutAnchorSide _leftSide = null;
+    public LayoutAnchorSide LeftSide
+    {
+      get
+      {
+        return _leftSide;
+      }
+      set
+      {
+        if( _leftSide != value )
         {
-            get { return _leftSide; }
-            set
-            {
-                if (_leftSide != value)
-                {
-                    RaisePropertyChanging("LeftSide");
-                    _leftSide = value;
-                    if (_leftSide != null)
-                        _leftSide.Parent = this;
-                    RaisePropertyChanged("LeftSide");
-                }
-            }
+          RaisePropertyChanging( "LeftSide" );
+          _leftSide = value;
+          if( _leftSide != null )
+            _leftSide.Parent = this;
+          RaisePropertyChanged( "LeftSide" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        #region BottomSide
+    #region BottomSide
 
-        private LayoutAnchorSide _bottomSide = null;
-        public LayoutAnchorSide BottomSide
+    private LayoutAnchorSide _bottomSide = null;
+    public LayoutAnchorSide BottomSide
+    {
+      get
+      {
+        return _bottomSide;
+      }
+      set
+      {
+        if( _bottomSide != value )
         {
-            get { return _bottomSide; }
-            set
-            {
-                if (_bottomSide != value)
-                {
-                    RaisePropertyChanging("BottomSide");
-                    _bottomSide = value;
-                    if (_bottomSide != null)
-                        _bottomSide.Parent = this;
-                    RaisePropertyChanged("BottomSide");
-                }
-            }
+          RaisePropertyChanging( "BottomSide" );
+          _bottomSide = value;
+          if( _bottomSide != null )
+            _bottomSide.Parent = this;
+          RaisePropertyChanged( "BottomSide" );
         }
+      }
+    }
 
-        #endregion
-
-        #region FloatingWindows
-        ObservableCollection<LayoutFloatingWindow> _floatingWindows = null;
-
-        public ObservableCollection<LayoutFloatingWindow> FloatingWindows
-        {
-            get 
-            {
-                if (_floatingWindows == null)
-                {
-                    _floatingWindows = new ObservableCollection<LayoutFloatingWindow>();
-                    _floatingWindows.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(_floatingWindows_CollectionChanged);
-                }
+    #endregion
 
-                return _floatingWindows; 
-            }
-        }
+    #region FloatingWindows
+    ObservableCollection<LayoutFloatingWindow> _floatingWindows = null;
 
-        void _floatingWindows_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
+    public ObservableCollection<LayoutFloatingWindow> FloatingWindows
+    {
+      get
+      {
+        if( _floatingWindows == null )
         {
-            if (e.OldItems != null && (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                foreach (LayoutFloatingWindow element in e.OldItems)
-                {
-                    if (element.Parent == this)
-                        element.Parent = null;
-                }
-            } 
-
-            if (e.NewItems != null && (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace))
-            {
-                foreach (LayoutFloatingWindow element in e.NewItems)
-                    element.Parent = this;
-            }
+          _floatingWindows = new ObservableCollection<LayoutFloatingWindow>();
+          _floatingWindows.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler( _floatingWindows_CollectionChanged );
         }
-        #endregion
 
-        #region HiddenAnchorables
-
-        ObservableCollection<LayoutAnchorable> _hiddenAnchorables = null;
+        return _floatingWindows;
+      }
+    }
 
-        public ObservableCollection<LayoutAnchorable> Hidden
+    void _floatingWindows_CollectionChanged( object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e )
+    {
+      if( e.OldItems != null && ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        foreach( LayoutFloatingWindow element in e.OldItems )
         {
-            get
-            {
-                if (_hiddenAnchorables == null)
-                {
-                    _hiddenAnchorables = new ObservableCollection<LayoutAnchorable>();
-                    _hiddenAnchorables.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(_hiddenAnchorables_CollectionChanged);
-                }
-
-                return _hiddenAnchorables;
-            }
+          if( element.Parent == this )
+            element.Parent = null;
         }
+      }
+
+      if( e.NewItems != null && ( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace ) )
+      {
+        foreach( LayoutFloatingWindow element in e.NewItems )
+          element.Parent = this;
+      }
+    }
+    #endregion
 
-        void _hiddenAnchorables_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
-        {
-            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
-            {
-                if (e.OldItems != null)
-                {
-                    foreach (LayoutAnchorable element in e.OldItems)
-                    {
-                        if (element.Parent == this)
-                            element.Parent = null;
-                    }
-                }
-            }
-
-            if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
-                e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
-            {
-                if (e.NewItems != null)
-                {
-                    foreach (LayoutAnchorable element in e.NewItems)
-                    {
-                        if (element.Parent != this)
-                        {
-                            if (element.Parent != null)
-                                element.Parent.RemoveChild(element);
-                            element.Parent = this;
-                        }
-
-                    }
-                }
-            }
-
-
+    #region HiddenAnchorables
 
-        }
+    ObservableCollection<LayoutAnchorable> _hiddenAnchorables = null;
 
-        #endregion
-
-        #region Children
-        public IEnumerable<ILayoutElement> Children
+    public ObservableCollection<LayoutAnchorable> Hidden
+    {
+      get
+      {
+        if( _hiddenAnchorables == null )
         {
-            get
-            {
-                if (RootPanel != null)
-                    yield return RootPanel;
-                if (_floatingWindows != null)
-                {
-                    foreach (var floatingWindow in _floatingWindows)
-                        yield return floatingWindow;
-                }
-                if (TopSide != null)
-                    yield return TopSide;
-                if (RightSide != null)
-                    yield return RightSide;
-                if (BottomSide != null)
-                    yield return BottomSide;
-                if (LeftSide != null)
-                    yield return LeftSide;
-                if (_hiddenAnchorables != null)
-                {
-                    foreach (var hiddenAnchorable in _hiddenAnchorables)
-                        yield return hiddenAnchorable;
-                }
-            }
+          _hiddenAnchorables = new ObservableCollection<LayoutAnchorable>();
+          _hiddenAnchorables.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler( _hiddenAnchorables_CollectionChanged );
         }
-        public void RemoveChild(ILayoutElement element)
-        {
-            if (element == RootPanel)
-                RootPanel = null;
-            else if (_floatingWindows != null && _floatingWindows.Contains(element))
-                _floatingWindows.Remove(element as LayoutFloatingWindow);
-            else if (_hiddenAnchorables != null && _hiddenAnchorables.Contains(element))
-                _hiddenAnchorables.Remove(element as LayoutAnchorable);
-            else if (element == TopSide)
-                TopSide = null;
-            else if (element == RightSide)
-                RightSide = null;
-            else if (element == BottomSide)
-                BottomSide = null;
-            else if (element == LeftSide)
-                LeftSide = null;
 
-        }
+        return _hiddenAnchorables;
+      }
+    }
 
-        public void ReplaceChild(ILayoutElement oldElement, ILayoutElement newElement)
+    void _hiddenAnchorables_CollectionChanged( object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e )
+    {
+      if( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace )
+      {
+        if( e.OldItems != null )
         {
-            if (oldElement == RootPanel)
-                RootPanel = (LayoutPanel)newElement;
-            else if (_floatingWindows != null && _floatingWindows.Contains(oldElement))
-            {
-                int index = _floatingWindows.IndexOf(oldElement as LayoutFloatingWindow);
-                _floatingWindows.Remove(oldElement as LayoutFloatingWindow);
-                _floatingWindows.Insert(index, newElement as LayoutFloatingWindow);
-            }
-            else if (_hiddenAnchorables != null && _hiddenAnchorables.Contains(oldElement))
-            {
-                int index = _hiddenAnchorables.IndexOf(oldElement as LayoutAnchorable);
-                _hiddenAnchorables.Remove(oldElement as LayoutAnchorable);
-                _hiddenAnchorables.Insert(index, newElement as LayoutAnchorable);
-            }
-            else if (oldElement == TopSide)
-                TopSide = (LayoutAnchorSide)newElement;
-            else if (oldElement == RightSide)
-                RightSide = (LayoutAnchorSide)newElement;
-            else if (oldElement == BottomSide)
-                BottomSide = (LayoutAnchorSide)newElement;
-            else if (oldElement == LeftSide)
-                LeftSide = (LayoutAnchorSide)newElement;
+          foreach( LayoutAnchorable element in e.OldItems )
+          {
+            if( element.Parent == this )
+              element.Parent = null;
+          }
         }
+      }
 
-        public int ChildrenCount
+      if( e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add ||
+          e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace )
+      {
+        if( e.NewItems != null )
         {
-            get
+          foreach( LayoutAnchorable element in e.NewItems )
+          {
+            if( element.Parent != this )
             {
-                return 5 +
-                    (_floatingWindows != null ? _floatingWindows.Count : 0) + 
-                    (_hiddenAnchorables != null ? _hiddenAnchorables.Count : 0); 
+              if( element.Parent != null )
+                element.Parent.RemoveChild( element );
+              element.Parent = this;
             }
-        }
-        #endregion
-
-        #region ActiveContent
 
-        [field:NonSerialized]
-        private WeakReference _activeContent = null;
-        private bool _activeContentSet = false;
-
-        [XmlIgnore]
-        public LayoutContent ActiveContent
-        {
-            get { return _activeContent.GetValueOrDefault<LayoutContent>(); }
-            set
-            {
-                var currentValue = ActiveContent;
-                if (currentValue != value)
-                {
-                    InternalSetActiveContent(currentValue, value);
-                }
-            }
+          }
         }
+      }
 
-        void InternalSetActiveContent(LayoutContent currentValue, LayoutContent newActiveContent)
-        {
-            RaisePropertyChanging("ActiveContent");
-            if (currentValue != null)
-                currentValue.IsActive = false;
-            _activeContent = new WeakReference(newActiveContent);
-            currentValue = ActiveContent;
-            if (currentValue != null)
-                currentValue.IsActive = true;
-            RaisePropertyChanged("ActiveContent");
-            _activeContentSet = currentValue != null;
-            if (currentValue != null)
-            {
-                if (currentValue.Parent is LayoutDocumentPane || currentValue is LayoutDocument)
-                    LastFocusedDocument = currentValue;
-            }
-            else
-                LastFocusedDocument = null;
-        }
 
-        void UpdateActiveContentProperty()
-        {
-            var activeContent = ActiveContent;
-            if (_activeContentSet && (activeContent == null || activeContent.Root != this))
-            {
-                _activeContentSet = false;
-                InternalSetActiveContent(activeContent, null);
-            }
-        }
-        #endregion
 
-        #region LastFocusedDocument
+    }
 
-        [field: NonSerialized]
-        private WeakReference _lastFocusedDocument = null;
-        [field: NonSerialized]
-        private bool _lastFocusedDocumentSet = false;
+    #endregion
 
-        [XmlIgnore]
-        public LayoutContent LastFocusedDocument
+    #region Children
+    public IEnumerable<ILayoutElement> Children
+    {
+      get
+      {
+        if( RootPanel != null )
+          yield return RootPanel;
+        if( _floatingWindows != null )
         {
-            get { return _lastFocusedDocument.GetValueOrDefault<LayoutContent>(); }
-            private set
-            {
-                var currentValue = LastFocusedDocument;
-                if (currentValue != value)
-                {
-                    RaisePropertyChanging("LastFocusedDocument");
-                    if (currentValue != null)
-                        currentValue.IsLastFocusedDocument = false;
-                    _lastFocusedDocument = new WeakReference(value);
-                    currentValue = LastFocusedDocument;
-                    if (currentValue != null)
-                        currentValue.IsLastFocusedDocument = true;
-                    _lastFocusedDocumentSet = currentValue != null;
-                    RaisePropertyChanged("LastFocusedDocument");
-                }
-            }
+          foreach( var floatingWindow in _floatingWindows )
+            yield return floatingWindow;
         }
-
-        #endregion
-
-        #region Manager
-
-
-        [NonSerialized]
-        private DockingManager _manager = null;
-
-        [XmlIgnore]
-        public DockingManager Manager
+        if( TopSide != null )
+          yield return TopSide;
+        if( RightSide != null )
+          yield return RightSide;
+        if( BottomSide != null )
+          yield return BottomSide;
+        if( LeftSide != null )
+          yield return LeftSide;
+        if( _hiddenAnchorables != null )
         {
-            get { return _manager; }
-            internal set
-            {
-                if (_manager != value)
-                {
-                    RaisePropertyChanging("Manager");
-                    _manager = value;
-                    RaisePropertyChanged("Manager");
-                }
-            }
+          foreach( var hiddenAnchorable in _hiddenAnchorables )
+            yield return hiddenAnchorable;
         }
+      }
+    }
+    public void RemoveChild( ILayoutElement element )
+    {
+      if( element == RootPanel )
+        RootPanel = null;
+      else if( _floatingWindows != null && _floatingWindows.Contains( element ) )
+        _floatingWindows.Remove( element as LayoutFloatingWindow );
+      else if( _hiddenAnchorables != null && _hiddenAnchorables.Contains( element ) )
+        _hiddenAnchorables.Remove( element as LayoutAnchorable );
+      else if( element == TopSide )
+        TopSide = null;
+      else if( element == RightSide )
+        RightSide = null;
+      else if( element == BottomSide )
+        BottomSide = null;
+      else if( element == LeftSide )
+        LeftSide = null;
 
-        #endregion
-
-        #region CollectGarbage
+    }
 
-        /// <summary>
-        /// Removes any empty container not directly referenced by other layout items
-        /// </summary>
-        public void CollectGarbage()
-        {
-            bool exitFlag = true;
+    public void ReplaceChild( ILayoutElement oldElement, ILayoutElement newElement )
+    {
+      if( oldElement == RootPanel )
+        RootPanel = ( LayoutPanel )newElement;
+      else if( _floatingWindows != null && _floatingWindows.Contains( oldElement ) )
+      {
+        int index = _floatingWindows.IndexOf( oldElement as LayoutFloatingWindow );
+        _floatingWindows.Remove( oldElement as LayoutFloatingWindow );
+        _floatingWindows.Insert( index, newElement as LayoutFloatingWindow );
+      }
+      else if( _hiddenAnchorables != null && _hiddenAnchorables.Contains( oldElement ) )
+      {
+        int index = _hiddenAnchorables.IndexOf( oldElement as LayoutAnchorable );
+        _hiddenAnchorables.Remove( oldElement as LayoutAnchorable );
+        _hiddenAnchorables.Insert( index, newElement as LayoutAnchorable );
+      }
+      else if( oldElement == TopSide )
+        TopSide = ( LayoutAnchorSide )newElement;
+      else if( oldElement == RightSide )
+        RightSide = ( LayoutAnchorSide )newElement;
+      else if( oldElement == BottomSide )
+        BottomSide = ( LayoutAnchorSide )newElement;
+      else if( oldElement == LeftSide )
+        LeftSide = ( LayoutAnchorSide )newElement;
+    }
 
-            #region collect empty panes
-            do
-            {
-                exitFlag = true;
-
-                //for each content that references via PreviousContainer a disconnected Pane set the property to null
-                foreach (var content in this.Descendents().OfType<ILayoutPreviousContainer>().Where(c => c.PreviousContainer != null && 
-                    (c.PreviousContainer.Parent == null || c.PreviousContainer.Parent.Root != this)))
-                {
-                    content.PreviousContainer = null;
-                }
-
-                //for each pane that is empty
-                foreach (var emptyPane in this.Descendents().OfType<ILayoutPane>().Where(p => p.ChildrenCount == 0))
-                {
-                    //...set null any reference coming from contents not yet hosted in a floating window
-                    foreach (var contentReferencingEmptyPane in this.Descendents().OfType<LayoutContent>()
-                        .Where(c => ((ILayoutPreviousContainer)c).PreviousContainer == emptyPane && !c.IsFloating))
-                    {
-                        if (contentReferencingEmptyPane is LayoutAnchorable &&
-                            !((LayoutAnchorable)contentReferencingEmptyPane).IsVisible)
-                            continue;
-
-                        ((ILayoutPreviousContainer)contentReferencingEmptyPane).PreviousContainer = null;
-                        contentReferencingEmptyPane.PreviousContainerIndex = -1;
-                    }
-
-                    //...if this pane is the only documentpane present in the layout than skip it
-                    if (emptyPane is LayoutDocumentPane &&
-                        this.Descendents().OfType<LayoutDocumentPane>().Count(c => c != emptyPane) == 0)
-                        continue;
-
-                    //...if this empty panes is not referenced by anyone, than removes it from its parent container
-                    if (!this.Descendents().OfType<ILayoutPreviousContainer>().Any(c => c.PreviousContainer == emptyPane))
-                    {
-                        var parentGroup = emptyPane.Parent as ILayoutContainer;
-                        parentGroup.RemoveChild(emptyPane);
-                        exitFlag = false;
-                        break;
-                    }
-                }
-
-                if (!exitFlag)
-                {
-                    //removes any empty anchorable pane group
-                    foreach (var emptyPaneGroup in this.Descendents().OfType<LayoutAnchorablePaneGroup>().Where(p => p.ChildrenCount == 0))
-                    {
-                        var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
-                        parentGroup.RemoveChild(emptyPaneGroup);
-                        exitFlag = false;
-                        break;
-                    }
-                }
-
-                if (!exitFlag)
-                {
-                    //removes any empty layout panel
-                    foreach (var emptyPaneGroup in this.Descendents().OfType<LayoutPanel>().Where(p => p.ChildrenCount == 0))
-                    {
-                        var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
-                        parentGroup.RemoveChild(emptyPaneGroup);
-                        exitFlag = false;
-                        break;
-                    }
-                }
-
-                if (!exitFlag)
-                {
-                    //removes any empty floating window
-                    foreach (var emptyPaneGroup in this.Descendents().OfType<LayoutFloatingWindow>().Where(p => p.ChildrenCount == 0))
-                    {
-                        var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
-                        parentGroup.RemoveChild(emptyPaneGroup);
-                        exitFlag = false;
-                        break;
-                    }
-                }
-
-                if (!exitFlag)
-                {
-                    //removes any empty anchor group
-                    foreach (var emptyPaneGroup in this.Descendents().OfType<LayoutAnchorGroup>().Where(p => p.ChildrenCount == 0))
-                    {
-                        var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
-                        parentGroup.RemoveChild(emptyPaneGroup);
-                        exitFlag = false;
-                        break;
-                    }
-                }
+    public int ChildrenCount
+    {
+      get
+      {
+        return 5 +
+            ( _floatingWindows != null ? _floatingWindows.Count : 0 ) +
+            ( _hiddenAnchorables != null ? _hiddenAnchorables.Count : 0 );
+      }
+    }
+    #endregion
 
-            }
-            while (!exitFlag);
-            #endregion
+    #region ActiveContent
 
-            #region collapse single child anchorable pane groups
-            do
-            {
-                exitFlag = true;
-                //for each pane that is empty
-                foreach (var paneGroupToCollapse in this.Descendents().OfType<LayoutAnchorablePaneGroup>().Where(p => p.ChildrenCount == 1 && p.Children[0] is LayoutAnchorablePaneGroup).ToArray())
-                {
-                    var singleChild = paneGroupToCollapse.Children[0] as LayoutAnchorablePaneGroup;
-                    paneGroupToCollapse.Orientation = singleChild.Orientation;
-                    paneGroupToCollapse.RemoveChild(singleChild);
-                    while (singleChild.ChildrenCount > 0)
-                    {
-                        paneGroupToCollapse.InsertChildAt(
-                            paneGroupToCollapse.ChildrenCount, singleChild.Children[0]);
-                    }
-
-                    exitFlag = false;
-                    break;
-                }
+    [field: NonSerialized]
+    private WeakReference _activeContent = null;
+    private bool _activeContentSet = false;
 
-            }
-            while (!exitFlag);
+    [XmlIgnore]
+    public LayoutContent ActiveContent
+    {
+      get
+      {
+        return _activeContent.GetValueOrDefault<LayoutContent>();
+      }
+      set
+      {
+        var currentValue = ActiveContent;
+        if( currentValue != value )
+        {
+          InternalSetActiveContent( currentValue, value );
+        }
+      }
+    }
 
+    void InternalSetActiveContent( LayoutContent currentValue, LayoutContent newActiveContent )
+    {
+      RaisePropertyChanging( "ActiveContent" );
+      if( currentValue != null )
+        currentValue.IsActive = false;
+      _activeContent = new WeakReference( newActiveContent );
+      currentValue = ActiveContent;
+      if( currentValue != null )
+        currentValue.IsActive = true;
+      RaisePropertyChanged( "ActiveContent" );
+      _activeContentSet = currentValue != null;
+      if( currentValue != null )
+      {
+        if( currentValue.Parent is LayoutDocumentPane || currentValue is LayoutDocument )
+          LastFocusedDocument = currentValue;
+      }
+      else
+        LastFocusedDocument = null;
+    }
 
+    void UpdateActiveContentProperty()
+    {
+      var activeContent = ActiveContent;
+      if( _activeContentSet && ( activeContent == null || activeContent.Root != this ) )
+      {
+        _activeContentSet = false;
+        InternalSetActiveContent( activeContent, null );
+      }
+    }
+    #endregion
 
-            #endregion
+    #region LastFocusedDocument
 
-            #region collapse single child document pane groups
-            do
-            {
-                exitFlag = true;
-                //for each pane that is empty
-                foreach (var paneGroupToCollapse in this.Descendents().OfType<LayoutDocumentPaneGroup>().Where(p => p.ChildrenCount == 1 && p.Children[0] is LayoutDocumentPaneGroup).ToArray())
-                {
-                    var singleChild = paneGroupToCollapse.Children[0] as LayoutDocumentPaneGroup;
-                    paneGroupToCollapse.Orientation = singleChild.Orientation;
-                    paneGroupToCollapse.RemoveChild(singleChild);
-                    while (singleChild.ChildrenCount > 0)
-                    {
-                        paneGroupToCollapse.InsertChildAt(
-                            paneGroupToCollapse.ChildrenCount, singleChild.Children[0]);
-                    }
-
-                    exitFlag = false;
-                    break;
-                }
+    [field: NonSerialized]
+    private WeakReference _lastFocusedDocument = null;
+    [field: NonSerialized]
+    private bool _lastFocusedDocumentSet = false;
 
-            }
-            while (!exitFlag);
-
-
-
-            #endregion
-
-            //do
-            //{
-            //  exitFlag = true;
-            //  //for each panel that has only one child
-            //  foreach( var panelToCollapse in this.Descendents().OfType<LayoutPanel>().Where( p => p.ChildrenCount == 1 && p.Children[ 0 ] is LayoutPanel ).ToArray() )
-            //  {
-            //    var singleChild = panelToCollapse.Children[ 0 ] as LayoutPanel;
-            //    panelToCollapse.Orientation = singleChild.Orientation;
-            //    panelToCollapse.RemoveChild( singleChild );
-            //    ILayoutPanelElement[] singleChildChildren = new ILayoutPanelElement[ singleChild.ChildrenCount ];
-            //    singleChild.Children.CopyTo( singleChildChildren, 0 );
-            //    while( singleChild.ChildrenCount > 0 )
-            //    {
-            //      panelToCollapse.InsertChildAt(
-            //          panelToCollapse.ChildrenCount, singleChildChildren[ panelToCollapse.ChildrenCount ] );
-            //    }
-
-            //    exitFlag = false;
-            //    break;
-            //  }
-
-            //}
-            //while( !exitFlag );
-
-            #region Update ActiveContent and LastFocusedDocument properties
-            UpdateActiveContentProperty();
-            #endregion
-#if DEBUG
-            System.Diagnostics.Debug.Assert(
-                !this.Descendents().OfType<LayoutAnchorablePane>().Any(a => a.ChildrenCount == 0 && a.IsVisible));
-#if TRACE
-            RootPanel.ConsoleDump(4);
-#endif
-#endif
+    [XmlIgnore]
+    public LayoutContent LastFocusedDocument
+    {
+      get
+      {
+        return _lastFocusedDocument.GetValueOrDefault<LayoutContent>();
+      }
+      private set
+      {
+        var currentValue = LastFocusedDocument;
+        if( currentValue != value )
+        {
+          RaisePropertyChanging( "LastFocusedDocument" );
+          if( currentValue != null )
+            currentValue.IsLastFocusedDocument = false;
+          _lastFocusedDocument = new WeakReference( value );
+          currentValue = LastFocusedDocument;
+          if( currentValue != null )
+            currentValue.IsLastFocusedDocument = true;
+          _lastFocusedDocumentSet = currentValue != null;
+          RaisePropertyChanged( "LastFocusedDocument" );
         }
+      }
+    }
 
-        #endregion
+    #endregion
 
-        public event EventHandler Updated;
+    #region Manager
 
-        internal void FireLayoutUpdated()
-        {
-            if (Updated != null)
-                Updated(this, EventArgs.Empty);
-        }
 
-        #region LayoutElement Added/Removed events
+    [NonSerialized]
+    private DockingManager _manager = null;
 
-        internal void OnLayoutElementAdded(LayoutElement element)
+    [XmlIgnore]
+    public DockingManager Manager
+    {
+      get
+      {
+        return _manager;
+      }
+      internal set
+      {
+        if( _manager != value )
         {
-            if (ElementAdded != null)
-                ElementAdded(this, new LayoutElementEventArgs(element));
+          RaisePropertyChanging( "Manager" );
+          _manager = value;
+          RaisePropertyChanged( "Manager" );
         }
+      }
+    }
 
-        public event EventHandler<LayoutElementEventArgs> ElementAdded;
+    #endregion
 
-        internal void OnLayoutElementRemoved(LayoutElement element)
-        {
-            if (element.Descendents().OfType<LayoutContent>().Any(c => c == LastFocusedDocument))
-                LastFocusedDocument = null;
-            if (element.Descendents().OfType<LayoutContent>().Any(c => c == ActiveContent))
-                ActiveContent = null;
-            if (ElementRemoved != null)
-                ElementRemoved(this, new LayoutElementEventArgs(element));
-        }
+    #region CollectGarbage
 
-        public event EventHandler<LayoutElementEventArgs> ElementRemoved;
+    /// <summary>
+    /// Removes any empty container not directly referenced by other layout items
+    /// </summary>
+    public void CollectGarbage()
+    {
+      bool exitFlag = true;
 
-    #endregion
+      #region collect empty panes
+      do
+      {
+        exitFlag = true;
 
-        public XmlSchema GetSchema()
+        //for each content that references via PreviousContainer a disconnected Pane set the property to null
+        foreach( var content in this.Descendents().OfType<ILayoutPreviousContainer>().Where( c => c.PreviousContainer != null &&
+             ( c.PreviousContainer.Parent == null || c.PreviousContainer.Parent.Root != this ) ) )
         {
-          return null;
+          content.PreviousContainer = null;
         }
 
-        public void ReadXml( XmlReader reader )
+        //for each pane that is empty
+        foreach( var emptyPane in this.Descendents().OfType<ILayoutPane>().Where( p => p.ChildrenCount == 0 ) )
         {
-          reader.MoveToContent();
-          if( reader.IsEmptyElement )
+          //...set null any reference coming from contents not yet hosted in a floating window
+          foreach( var contentReferencingEmptyPane in this.Descendents().OfType<LayoutContent>()
+              .Where( c => ( ( ILayoutPreviousContainer )c ).PreviousContainer == emptyPane && !c.IsFloating ) )
           {
-            reader.Read();
-            return;
-          }
+            if( contentReferencingEmptyPane is LayoutAnchorable &&
+                !( ( LayoutAnchorable )contentReferencingEmptyPane ).IsVisible )
+              continue;
 
-          var layoutPanelElements = ReadRootPanel( reader );
-          if( layoutPanelElements != null )
-          {
-            //Create the RootPanel with the first child
-            RootPanel = new LayoutPanel( layoutPanelElements.First() );
-            //Add all children to RootPanel
-            for( int i = 1; i < layoutPanelElements.Count; ++i )
-            {
-              RootPanel.Children.Add( layoutPanelElements[ i ] );
-            }
+            ( ( ILayoutPreviousContainer )contentReferencingEmptyPane ).PreviousContainer = null;
+            contentReferencingEmptyPane.PreviousContainerIndex = -1;
           }
 
-          TopSide = ( LayoutAnchorSide )ReadElement( reader );
-          if( TopSide != null )
-          {
-            TopSide.Children.Add( ( LayoutAnchorGroup )ReadElement( reader ) );
-            reader.Read();
-          }
-          else TopSide = new LayoutAnchorSide();
+          //...if this pane is the only documentpane present in the layout than skip it
+          if( emptyPane is LayoutDocumentPane &&
+              this.Descendents().OfType<LayoutDocumentPane>().Count( c => c != emptyPane ) == 0 )
+            continue;
 
-          RightSide = ( LayoutAnchorSide )ReadElement( reader );
-          if( RightSide != null )
+          //...if this empty panes is not referenced by anyone, than removes it from its parent container
+          if( !this.Descendents().OfType<ILayoutPreviousContainer>().Any( c => c.PreviousContainer == emptyPane ) )
           {
-            RightSide.Children.Add( ( LayoutAnchorGroup )ReadElement( reader ) );
-            reader.Read();
+            var parentGroup = emptyPane.Parent as ILayoutContainer;
+            parentGroup.RemoveChild( emptyPane );
+            exitFlag = false;
+            break;
           }
-          else RightSide  = new LayoutAnchorSide();
+        }
 
-          LeftSide = ( LayoutAnchorSide )ReadElement( reader );
-          if( LeftSide != null )
+        if( !exitFlag )
+        {
+          //removes any empty anchorable pane group
+          foreach( var emptyPaneGroup in this.Descendents().OfType<LayoutAnchorablePaneGroup>().Where( p => p.ChildrenCount == 0 ) )
           {
-            LeftSide.Children.Add( ( LayoutAnchorGroup )ReadElement( reader ) );
-            reader.Read();
+            var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
+            parentGroup.RemoveChild( emptyPaneGroup );
+            exitFlag = false;
+            break;
           }
-          else LeftSide  = new LayoutAnchorSide();
+        }
 
-          BottomSide = ( LayoutAnchorSide )ReadElement( reader );
-          if( BottomSide != null )
+        if( !exitFlag )
+        {
+          //removes any empty layout panel
+          foreach( var emptyPaneGroup in this.Descendents().OfType<LayoutPanel>().Where( p => p.ChildrenCount == 0 ) )
           {
-            BottomSide.Children.Add( ( LayoutAnchorGroup )ReadElement( reader ) );
-            reader.Read();
+            var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
+            parentGroup.RemoveChild( emptyPaneGroup );
+            exitFlag = false;
+            break;
           }
-          else BottomSide  = new LayoutAnchorSide();
+        }
 
-          FloatingWindows.Clear();
-          var floatingWindows = ReadElementList( reader );
-          foreach( var floatingWindow in floatingWindows )
+        if( !exitFlag )
+        {
+          //removes any empty floating window
+          foreach( var emptyPaneGroup in this.Descendents().OfType<LayoutFloatingWindow>().Where( p => p.ChildrenCount == 0 ) )
           {
-            FloatingWindows.Add( ( LayoutFloatingWindow )floatingWindow );
+            var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
+            parentGroup.RemoveChild( emptyPaneGroup );
+            exitFlag = false;
+            break;
           }
+        }
 
-          Hidden.Clear();
-          var hidden = ReadElementList( reader );
-          foreach( var hiddenObject in hidden )
+        if( !exitFlag )
+        {
+          //removes any empty anchor group
+          foreach( var emptyPaneGroup in this.Descendents().OfType<LayoutAnchorGroup>().Where( p => p.ChildrenCount == 0 ) )
           {
-            Hidden.Add( ( LayoutAnchorable )hiddenObject );
+            var parentGroup = emptyPaneGroup.Parent as ILayoutContainer;
+            parentGroup.RemoveChild( emptyPaneGroup );
+            exitFlag = false;
+            break;
           }
         }
 
-        private List<ILayoutPanelElement> ReadRootPanel( XmlReader reader )
-        {
-          var result = new List<ILayoutPanelElement>();
+      }
+      while( !exitFlag );
+      #endregion
 
-          var startElementName = reader.LocalName;
-          reader.Read();
-          if( reader.LocalName.Equals(startElementName) && (reader.NodeType == XmlNodeType.EndElement) )
+      #region collapse single child anchorable pane groups
+      do
+      {
+        exitFlag = true;
+        //for each pane that is empty
+        foreach( var paneGroupToCollapse in this.Descendents().OfType<LayoutAnchorablePaneGroup>().Where( p => p.ChildrenCount == 1 && p.Children[ 0 ] is LayoutAnchorablePaneGroup ).ToArray() )
+        {
+          var singleChild = paneGroupToCollapse.Children[ 0 ] as LayoutAnchorablePaneGroup;
+          paneGroupToCollapse.Orientation = singleChild.Orientation;
+          paneGroupToCollapse.RemoveChild( singleChild );
+          while( singleChild.ChildrenCount > 0 )
           {
-            return null;
+            paneGroupToCollapse.InsertChildAt(
+                paneGroupToCollapse.ChildrenCount, singleChild.Children[ 0 ] );
           }
 
-          while( reader.NodeType == XmlNodeType.Whitespace )
-          {
-            reader.Read();
-          }
+          exitFlag = false;
+          break;
+        }
 
-          if( reader.LocalName.Equals("RootPanel"))
-          {
-            reader.Read();
+      }
+      while( !exitFlag );
 
-            while( true )
-            {
-              //Read all RootPanel children
-              var element = ReadElement( reader ) as ILayoutPanelElement;
-              if( element != null )
-              {
-                result.Add( element );
-              }
-              else if( reader.NodeType == XmlNodeType.EndElement )
-              {
-                break;
-              }
-            }
-          }
 
-          reader.ReadEndElement();
 
-          return result;
-        }
+      #endregion
 
-        private List<object> ReadElementList( XmlReader reader )
+      #region collapse single child document pane groups
+      do
+      {
+        exitFlag = true;
+        //for each pane that is empty
+        foreach( var paneGroupToCollapse in this.Descendents().OfType<LayoutDocumentPaneGroup>().Where( p => p.ChildrenCount == 1 && p.Children[ 0 ] is LayoutDocumentPaneGroup ).ToArray() )
         {
-          var resultList = new List<object>();
-
-          if( reader.IsEmptyElement )
+          var singleChild = paneGroupToCollapse.Children[ 0 ] as LayoutDocumentPaneGroup;
+          paneGroupToCollapse.Orientation = singleChild.Orientation;
+          paneGroupToCollapse.RemoveChild( singleChild );
+          while( singleChild.ChildrenCount > 0 )
           {
-            reader.Read();
-            return resultList;
+            paneGroupToCollapse.InsertChildAt(
+                paneGroupToCollapse.ChildrenCount, singleChild.Children[ 0 ] );
           }
 
-          var startElementName = reader.LocalName;
-          reader.Read();
-          if( reader.LocalName.Equals(startElementName) && (reader.NodeType == XmlNodeType.EndElement) )
-          {
-            return null;
-          }
+          exitFlag = false;
+          break;
+        }
 
-          while( reader.NodeType == XmlNodeType.Whitespace )
-          {
-            reader.Read();
-          }
+      }
+      while( !exitFlag );
 
-          while( true )
-          {
-            var result = ReadElement( reader ) as LayoutFloatingWindow;
-            if( result == null )
-            {
-              break;
-            }
 
-            resultList.Add( result );
-          }
 
-          reader.ReadEndElement();
+      #endregion
+
+      //do
+      //{
+      //  exitFlag = true;
+      //  //for each panel that has only one child
+      //  foreach( var panelToCollapse in this.Descendents().OfType<LayoutPanel>().Where( p => p.ChildrenCount == 1 && p.Children[ 0 ] is LayoutPanel ).ToArray() )
+      //  {
+      //    var singleChild = panelToCollapse.Children[ 0 ] as LayoutPanel;
+      //    panelToCollapse.Orientation = singleChild.Orientation;
+      //    panelToCollapse.RemoveChild( singleChild );
+      //    ILayoutPanelElement[] singleChildChildren = new ILayoutPanelElement[ singleChild.ChildrenCount ];
+      //    singleChild.Children.CopyTo( singleChildChildren, 0 );
+      //    while( singleChild.ChildrenCount > 0 )
+      //    {
+      //      panelToCollapse.InsertChildAt(
+      //          panelToCollapse.ChildrenCount, singleChildChildren[ panelToCollapse.ChildrenCount ] );
+      //    }
 
-          return resultList;
+      //    exitFlag = false;
+      //    break;
+      //  }
+
+      //}
+      //while( !exitFlag );
+
+      #region Update ActiveContent and LastFocusedDocument properties
+      UpdateActiveContentProperty();
+      #endregion
+#if DEBUG
+      System.Diagnostics.Debug.Assert(
+          !this.Descendents().OfType<LayoutAnchorablePane>().Any( a => a.ChildrenCount == 0 && a.IsVisible ) );
+#if TRACE
+            RootPanel.ConsoleDump(4);
+#endif
+#endif
+    }
+
+    #endregion
+
+    public event EventHandler Updated;
+
+    internal void FireLayoutUpdated()
+    {
+      if( Updated != null )
+        Updated( this, EventArgs.Empty );
+    }
+
+    #region LayoutElement Added/Removed events
+
+    internal void OnLayoutElementAdded( LayoutElement element )
+    {
+      if( ElementAdded != null )
+        ElementAdded( this, new LayoutElementEventArgs( element ) );
+    }
+
+    public event EventHandler<LayoutElementEventArgs> ElementAdded;
+
+    internal void OnLayoutElementRemoved( LayoutElement element )
+    {
+      if( element.Descendents().OfType<LayoutContent>().Any( c => c == LastFocusedDocument ) )
+        LastFocusedDocument = null;
+      if( element.Descendents().OfType<LayoutContent>().Any( c => c == ActiveContent ) )
+        ActiveContent = null;
+      if( ElementRemoved != null )
+        ElementRemoved( this, new LayoutElementEventArgs( element ) );
+    }
+
+    public event EventHandler<LayoutElementEventArgs> ElementRemoved;
+
+    #endregion
+
+    public XmlSchema GetSchema()
+    {
+      return null;
+    }
+
+    public void ReadXml( XmlReader reader )
+    {
+      reader.MoveToContent();
+      if( reader.IsEmptyElement )
+      {
+        reader.Read();
+        return;
+      }
+
+      var layoutPanelElements = ReadRootPanel( reader );
+      if( layoutPanelElements != null )
+      {
+        RootPanel = new LayoutPanel();
+        //Add all children to RootPanel
+        for( int i = 0; i < layoutPanelElements.Count; ++i )
+        {
+          RootPanel.Children.Add( layoutPanelElements[ i ] );
         }
+      }
+
+      TopSide = new LayoutAnchorSide();
+      if( ReadElement( reader ) != null )
+      {
+        FillLayoutAnchorSide( reader, TopSide );
+      }
+      RightSide = new LayoutAnchorSide();
+      if( ReadElement( reader ) != null )
+      {
+        FillLayoutAnchorSide( reader, RightSide );
+      }
+      LeftSide = new LayoutAnchorSide();
+      if( ReadElement( reader ) != null )
+      {
+        FillLayoutAnchorSide( reader, LeftSide );
+      }
+      BottomSide = new LayoutAnchorSide();
+      if( ReadElement( reader ) != null )
+      {
+        FillLayoutAnchorSide( reader, BottomSide );
+      }
+
+      FloatingWindows.Clear();
+      var floatingWindows = ReadElementList( reader );
+      foreach( var floatingWindow in floatingWindows )
+      {
+        FloatingWindows.Add( ( LayoutFloatingWindow )floatingWindow );
+      }
+
+      Hidden.Clear();
+      var hidden = ReadElementList( reader );
+      foreach( var hiddenObject in hidden )
+      {
+        Hidden.Add( ( LayoutAnchorable )hiddenObject );
+      }
+    }
+
+    private void FillLayoutAnchorSide( XmlReader reader, LayoutAnchorSide layoutAnchorSide )
+    {
+      var result = new List<LayoutAnchorGroup>();
 
-        private object ReadElement( XmlReader reader )
+      while( true )
+      {
+        //Read all layoutAnchorSide children
+        var element = ReadElement( reader ) as LayoutAnchorGroup;
+        if( element != null )
         {
-          if( reader.NodeType == XmlNodeType.EndElement )
-          {
-            return null;
-          }
+          result.Add( element );
+        }
+        else if( reader.NodeType == XmlNodeType.EndElement )
+        {
+          break;
+        }
+      }
 
-          while( reader.NodeType == XmlNodeType.Whitespace )
-          {
-            reader.Read();
-          }
+      reader.ReadEndElement();
+      foreach( var las in result )
+      {
+        layoutAnchorSide.Children.Add( las );
+      }
+    }
 
-          XmlSerializer serializer;
-          switch( reader.LocalName )
-          {
-            case "LayoutAnchorablePaneGroup":
-              serializer = new XmlSerializer( typeof( LayoutAnchorablePaneGroup ) );
-              break;
-            case "LayoutAnchorablePane":
-              serializer = new XmlSerializer( typeof( LayoutAnchorablePane ) );
-              break;
-            case "LayoutAnchorable":
-              serializer = new XmlSerializer( typeof( LayoutAnchorable ) );
-              break;
-            case "LayoutDocumentPaneGroup":
-              serializer = new XmlSerializer( typeof( LayoutDocumentPaneGroup ) );
-              break;
-            case "LayoutDocumentPane":
-              serializer = new XmlSerializer( typeof( LayoutDocumentPane ) );
-              break;
-            case "LayoutDocument":
-              serializer = new XmlSerializer( typeof( LayoutDocument ) );
-              break;
-            case "LayoutAnchorGroup":
-              serializer = new XmlSerializer( typeof( LayoutAnchorGroup ) );
-              break;
-            case "LayoutPanel":
-              serializer = new XmlSerializer( typeof( LayoutPanel ) );
-              break;
-            case "LayoutDocumentFloatingWindow":
-              serializer = new XmlSerializer( typeof( LayoutDocumentFloatingWindow ) );
-              break;
-            case "LayoutAnchorableFloatingWindow":
-              serializer = new XmlSerializer( typeof( LayoutAnchorableFloatingWindow ) );
-              break;
-            case "LeftSide":
-            case "RightSide":
-            case "TopSide":
-            case "BottomSide":
-              if( reader.IsEmptyElement )
-              {
-                reader.Read();
-                return null;
-              }
-              reader.Read();
-              return new LayoutAnchorSide();
-            default:
-              var type = LayoutRoot.FindType( reader.LocalName );
-              if( type == null )
-              {
-                throw new ArgumentException( "AvalonDock.LayoutRoot doesn't know how to deserialize " + reader.LocalName );
-              }
-              serializer = new XmlSerializer( type );
-              break;
-          }
+    private List<ILayoutPanelElement> ReadRootPanel( XmlReader reader )
+    {
+      var result = new List<ILayoutPanelElement>();
 
-          return serializer.Deserialize( reader );
-        }
+      var startElementName = reader.LocalName;
+      reader.Read();
+      if( reader.LocalName.Equals( startElementName ) && ( reader.NodeType == XmlNodeType.EndElement ) )
+      {
+        return null;
+      }
+
+      while( reader.NodeType == XmlNodeType.Whitespace )
+      {
+        reader.Read();
+      }
 
-        public void WriteXml( XmlWriter writer )
+      if( reader.LocalName.Equals( "RootPanel" ) )
+      {
+        reader.Read();
+
+        while( true )
         {
-          writer.WriteStartElement( "RootPanel" );
-          if( RootPanel != null )
+          //Read all RootPanel children
+          var element = ReadElement( reader ) as ILayoutPanelElement;
+          if( element != null )
           {
-            RootPanel.WriteXml( writer );
+            result.Add( element );
           }
-          writer.WriteEndElement();
-
-          writer.WriteStartElement( "TopSide" );
-          if( TopSide != null )
+          else if( reader.NodeType == XmlNodeType.EndElement )
           {
-            TopSide.WriteXml( writer );
+            break;
           }
-          writer.WriteEndElement();
+        }
+      }
 
-          writer.WriteStartElement( "RightSide" );
-          if( RightSide != null )
-          {
-            RightSide.WriteXml( writer );
-          }
-          writer.WriteEndElement();
+      reader.ReadEndElement();
 
-          writer.WriteStartElement( "LeftSide" );
-          if( LeftSide != null )
-          {
-            LeftSide.WriteXml( writer );
-          }
-          writer.WriteEndElement();
+      return result;
+    }
 
-          writer.WriteStartElement( "BottomSide" );
-          if( BottomSide != null )
-          {
-            BottomSide.WriteXml( writer );
-          }
-          writer.WriteEndElement();
+    private List<object> ReadElementList( XmlReader reader )
+    {
+      var resultList = new List<object>();
+
+      if( reader.IsEmptyElement )
+      {
+        reader.Read();
+        return resultList;
+      }
+
+      var startElementName = reader.LocalName;
+      reader.Read();
+      if( reader.LocalName.Equals( startElementName ) && ( reader.NodeType == XmlNodeType.EndElement ) )
+      {
+        return null;
+      }
+
+      while( reader.NodeType == XmlNodeType.Whitespace )
+      {
+        reader.Read();
+      }
+
+      while( true )
+      {
+        var result = ReadElement( reader ) as LayoutFloatingWindow;
+        if( result == null )
+        {
+          break;
+        }
+
+        resultList.Add( result );
+      }
+
+      reader.ReadEndElement();
 
-          // Write all floating windows (can be LayoutDocumentFloatingWindow or LayoutAnchorableFloatingWindow).
-          // To prevent "can not create instance of abstract type", the type is retrieved with GetType().Name
-          writer.WriteStartElement( "FloatingWindows" );
-          foreach( var layoutFloatingWindow in FloatingWindows )
+      return resultList;
+    }
+
+    private object ReadElement( XmlReader reader )
+    {
+      if( reader.NodeType == XmlNodeType.EndElement )
+      {
+        return null;
+      }
+
+      while( reader.NodeType == XmlNodeType.Whitespace )
+      {
+        reader.Read();
+      }
+
+      XmlSerializer serializer;
+      switch( reader.LocalName )
+      {
+        case "LayoutAnchorablePaneGroup":
+          serializer = new XmlSerializer( typeof( LayoutAnchorablePaneGroup ) );
+          break;
+        case "LayoutAnchorablePane":
+          serializer = new XmlSerializer( typeof( LayoutAnchorablePane ) );
+          break;
+        case "LayoutAnchorable":
+          serializer = new XmlSerializer( typeof( LayoutAnchorable ) );
+          break;
+        case "LayoutDocumentPaneGroup":
+          serializer = new XmlSerializer( typeof( LayoutDocumentPaneGroup ) );
+          break;
+        case "LayoutDocumentPane":
+          serializer = new XmlSerializer( typeof( LayoutDocumentPane ) );
+          break;
+        case "LayoutDocument":
+          serializer = new XmlSerializer( typeof( LayoutDocument ) );
+          break;
+        case "LayoutAnchorGroup":
+          serializer = new XmlSerializer( typeof( LayoutAnchorGroup ) );
+          break;
+        case "LayoutPanel":
+          serializer = new XmlSerializer( typeof( LayoutPanel ) );
+          break;
+        case "LayoutDocumentFloatingWindow":
+          serializer = new XmlSerializer( typeof( LayoutDocumentFloatingWindow ) );
+          break;
+        case "LayoutAnchorableFloatingWindow":
+          serializer = new XmlSerializer( typeof( LayoutAnchorableFloatingWindow ) );
+          break;
+        case "LeftSide":
+        case "RightSide":
+        case "TopSide":
+        case "BottomSide":
+          if( reader.IsEmptyElement )
           {
-            writer.WriteStartElement( layoutFloatingWindow.GetType().Name );
-            layoutFloatingWindow.WriteXml( writer );
-            writer.WriteEndElement();
+            reader.Read();
+            return null;
           }
-          writer.WriteEndElement();
-
-          writer.WriteStartElement( "Hidden" );
-          foreach( var layoutAnchorable in Hidden )
+          return reader.Read();
+        default:
+          var type = LayoutRoot.FindType( reader.LocalName );
+          if( type == null )
           {
-            layoutAnchorable.WriteXml( writer );
+            throw new ArgumentException( "AvalonDock.LayoutRoot doesn't know how to deserialize " + reader.LocalName );
           }
-          writer.WriteEndElement();
-        }
+          serializer = new XmlSerializer( type );
+          break;
+      }
+
+      return serializer.Deserialize( reader );
+    }
+
+    public void WriteXml( XmlWriter writer )
+    {
+      writer.WriteStartElement( "RootPanel" );
+      if( RootPanel != null )
+      {
+        RootPanel.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+
+      writer.WriteStartElement( "TopSide" );
+      if( TopSide != null )
+      {
+        TopSide.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+
+      writer.WriteStartElement( "RightSide" );
+      if( RightSide != null )
+      {
+        RightSide.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+
+      writer.WriteStartElement( "LeftSide" );
+      if( LeftSide != null )
+      {
+        LeftSide.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+
+      writer.WriteStartElement( "BottomSide" );
+      if( BottomSide != null )
+      {
+        BottomSide.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+
+      // Write all floating windows (can be LayoutDocumentFloatingWindow or LayoutAnchorableFloatingWindow).
+      // To prevent "can not create instance of abstract type", the type is retrieved with GetType().Name
+      writer.WriteStartElement( "FloatingWindows" );
+      foreach( var layoutFloatingWindow in FloatingWindows )
+      {
+        writer.WriteStartElement( layoutFloatingWindow.GetType().Name );
+        layoutFloatingWindow.WriteXml( writer );
+        writer.WriteEndElement();
+      }
+      writer.WriteEndElement();
+
+      writer.WriteStartElement( "Hidden" );
+      foreach( var layoutAnchorable in Hidden )
+      {
+        layoutAnchorable.WriteXml( writer );
+      }
+      writer.WriteEndElement();
+    }
 
-        internal static Type FindType( string name )
+    internal static Type FindType( string name )
+    {
+      foreach( var assembly in AppDomain.CurrentDomain.GetAssemblies() )
+      {
+        foreach( var type in assembly.GetTypes() )
         {
-          foreach( var assembly in AppDomain.CurrentDomain.GetAssemblies() )
-          {
-            foreach( var type in assembly.GetTypes() )
-            {
-              if( type.Name.Equals( name ) )
-                return type;
-            }
-          }
-          return null;
+          if( type.Name.Equals( name ) )
+            return type;
         }
+      }
+      return null;
+    }
 
 #if TRACE
         public override void ConsoleDump(int tab)
@@ -976,5 +1012,5 @@ public override void ConsoleDump(int tab)
 #endif
 
 
-    }
+  }
 }
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Properties/AssemblyInfo.cs b/source/Components/Xceed.Wpf.AvalonDock/Properties/AssemblyInfo.cs
index 450d70a1..f891af3f 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Properties/AssemblyInfo.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/Properties/AssemblyInfo.cs
@@ -30,7 +30,7 @@ This program is provided to you under the terms of the Microsoft Public
 
 [assembly: AssemblyCompany( "Xceed Software Inc." )]
 [assembly: AssemblyProduct( "Xceed Toolkit for WPF - AvalonDock" )]
-[assembly: AssemblyCopyright( "Copyright (C) Xceed Software Inc. 2007-2016" )]
+[assembly: AssemblyCopyright( "Copyright (C) Xceed Software Inc. 2007-2017" )]
 [assembly: AssemblyCulture( "" )]
 
 
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml b/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
index 76ecd07c..51fb7a79 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
+++ b/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
@@ -23,581 +23,789 @@
                     xmlns:avalonDockConverters="clr-namespace:Xceed.Wpf.AvalonDock.Converters"
                     xmlns:avalonDockProperties="clr-namespace:Xceed.Wpf.AvalonDock.Properties">
 
-    <avalonDockConverters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter"/>
-    <avalonDockConverters:InverseBoolToVisibilityConverter x:Key="InverseBoolToVisibilityConverter"/>
-    <avalonDockConverters:AnchorSideToOrientationConverter x:Key="AnchorSideToOrientationConverter"/>
-    <avalonDockConverters:AnchorSideToAngleConverter x:Key="AnchorSideToAngleConverter"/>
-    <avalonDockConverters:NullToDoNothingConverter x:Key="NullToDoNothingConverter"/>
-    <avalonDockConverters:LayoutItemFromLayoutModelConverter x:Key="LayoutItemFromLayoutModelConverter"/>
-    <avalonDockConverters:ActivateCommandLayoutItemFromLayoutModelConverter x:Key="ActivateCommandLayoutItemFromLayoutModelConverter"/>
+  <avalonDockConverters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" />
+  <avalonDockConverters:InverseBoolToVisibilityConverter x:Key="InverseBoolToVisibilityConverter" />
+  <avalonDockConverters:AnchorSideToOrientationConverter x:Key="AnchorSideToOrientationConverter" />
+  <avalonDockConverters:AnchorSideToAngleConverter x:Key="AnchorSideToAngleConverter" />
+  <avalonDockConverters:NullToDoNothingConverter x:Key="NullToDoNothingConverter" />
+  <avalonDockConverters:LayoutItemFromLayoutModelConverter x:Key="LayoutItemFromLayoutModelConverter" />
+  <avalonDockConverters:ActivateCommandLayoutItemFromLayoutModelConverter x:Key="ActivateCommandLayoutItemFromLayoutModelConverter" />
+  <avalonDockConverters:AnchorableContextMenuHideVisibilityConverter x:Key="AnchorableContextMenuHideVisibilityConverter" />
 
-   <!--DocumentPaneControlStyle-->
-    <Style x:Key="DocumentPaneControlStyle" TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
-                    <Grid ClipToBounds="true" SnapsToDevicePixels="true" KeyboardNavigation.TabNavigation="Local">
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="Auto"/>
-                            <RowDefinition Height="*"/>
-                        </Grid.RowDefinitions>
-                        <!--Following border is required to catch mouse events-->
-                        <Border Background="Transparent" Grid.RowSpan="2"/>
-                        <Grid Visibility="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type avalonDockControls:LayoutDocumentPaneControl}}, Path=Model.ShowHeader, Converter={StaticResource BoolToVisibilityConverter}}"
-                              Panel.ZIndex="1">
-                              <Grid.ColumnDefinitions>
-                                <ColumnDefinition/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <avalonDockControls:DocumentPaneTabPanel x:Name="HeaderPanel" Grid.Column="0" IsItemsHost="true" Grid.Row="0" KeyboardNavigation.TabIndex="1"/>
-                            <avalonDockControls:DropDownButton
-                                x:Name="MenuDropDownButton"
-                                Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
-                                Focusable="False"
-                                Grid.Column="1">
-                                <avalonDockControls:DropDownButton.DropDownContextMenu>
-                                    <avalonDockControls:ContextMenuEx
-                                        ItemsSource="{Binding Model.ChildrenSorted, RelativeSource={RelativeSource TemplatedParent}}">
-                                        <avalonDockControls:ContextMenuEx.ItemContainerStyle>
-                                            <Style TargetType="{x:Type avalonDockControls:MenuItemEx}" BasedOn="{StaticResource {x:Type MenuItem}}">
-                                                <Setter Property="HeaderTemplate" Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplate}"/>
-                                                <Setter Property="HeaderTemplateSelector" Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplateSelector}"/>
-                                                <Setter Property="IconTemplate" Value="{Binding Path=Root.Manager.IconContentTemplate}"/>
-                                                <Setter Property="IconTemplateSelector" Value="{Binding Path=Root.Manager.IconContentTemplateSelector}"/>
-                                                <Setter Property="Command" Value="{Binding Path=., Converter={StaticResource ActivateCommandLayoutItemFromLayoutModelConverter}}"/>
-                                            </Style>
-                                        </avalonDockControls:ContextMenuEx.ItemContainerStyle>
-                                    </avalonDockControls:ContextMenuEx>
-                                </avalonDockControls:DropDownButton.DropDownContextMenu>
-                              <Border Background="White">
-                                 <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinDocMenu.png" />
-                              </Border>
-                            </avalonDockControls:DropDownButton>                            
-                        </Grid>
-                        <Border x:Name="ContentPanel" 
-                                VerticalAlignment="Stretch" 
-                                HorizontalAlignment="Stretch"  
-                                BorderBrush="{TemplateBinding BorderBrush}"
-                                BorderThickness="{TemplateBinding BorderThickness}"
-                                Background="{TemplateBinding Background}" 
-                                Grid.Column="0" 
-                                KeyboardNavigation.DirectionalNavigation="Contained" 
-                                Grid.Row="1"
-                                KeyboardNavigation.TabIndex="2" 
-                                KeyboardNavigation.TabNavigation="Cycle">
-                            <ContentPresenter x:Name="PART_SelectedContentHost" 
-                                              ContentSource="SelectedContent" 
-                                              Margin="{TemplateBinding Padding}"
-                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="IsEnabled" Value="false">
-                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                        </Trigger>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Model.ChildrenCount}" Value="0">
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="MenuDropDownButton" />
-                        </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="ItemContainerStyle">
+  <!--DocumentPaneControlStyle-->
+  <Style x:Key="DocumentPaneControlStyle"
+         TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentPaneControl}">
+          <Grid ClipToBounds="true"
+                SnapsToDevicePixels="true"
+                KeyboardNavigation.TabNavigation="Local">
+            <Grid.RowDefinitions>
+              <RowDefinition Height="Auto" />
+              <RowDefinition Height="*" />
+            </Grid.RowDefinitions>
+            <!--Following border is required to catch mouse events-->
+            <Border Background="Transparent"
+                    Grid.RowSpan="2" />
+            <Grid Visibility="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type avalonDockControls:LayoutDocumentPaneControl}}, Path=Model.ShowHeader, Converter={StaticResource BoolToVisibilityConverter}}"
+                  Panel.ZIndex="1">
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <avalonDockControls:DocumentPaneTabPanel x:Name="HeaderPanel"
+                                                       Grid.Column="0"
+                                                       IsItemsHost="true"
+                                                       Grid.Row="0"
+                                                       KeyboardNavigation.TabIndex="1" />
+              <avalonDockControls:DropDownButton x:Name="MenuDropDownButton"
+                                                 Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
+                                                 Focusable="False"
+                                                 Grid.Column="1">
+                <avalonDockControls:DropDownButton.DropDownContextMenu>
+                  <avalonDockControls:ContextMenuEx ItemsSource="{Binding Model.ChildrenSorted, RelativeSource={RelativeSource TemplatedParent}}">
+                    <avalonDockControls:ContextMenuEx.ItemContainerStyle>
+                      <Style TargetType="{x:Type avalonDockControls:MenuItemEx}"
+                             BasedOn="{StaticResource {x:Type MenuItem}}">
+                        <Setter Property="HeaderTemplate"
+                                Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplate}" />
+                        <Setter Property="HeaderTemplateSelector"
+                                Value="{Binding Path=Root.Manager.DocumentPaneMenuItemHeaderTemplateSelector}" />
+                        <Setter Property="IconTemplate"
+                                Value="{Binding Path=Root.Manager.IconContentTemplate}" />
+                        <Setter Property="IconTemplateSelector"
+                                Value="{Binding Path=Root.Manager.IconContentTemplateSelector}" />
+                        <Setter Property="Command"
+                                Value="{Binding Path=., Converter={StaticResource ActivateCommandLayoutItemFromLayoutModelConverter}}" />
+                      </Style>
+                    </avalonDockControls:ContextMenuEx.ItemContainerStyle>
+                  </avalonDockControls:ContextMenuEx>
+                </avalonDockControls:DropDownButton.DropDownContextMenu>
+                <Border Background="White">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinDocMenu.png">
+                  </Image>
+                </Border>
+              </avalonDockControls:DropDownButton>
+            </Grid>
+            <Border x:Name="ContentPanel"
+                    VerticalAlignment="Stretch"
+                    HorizontalAlignment="Stretch"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Background="{TemplateBinding Background}"
+                    Grid.Column="0"
+                    KeyboardNavigation.DirectionalNavigation="Contained"
+                    Grid.Row="1"
+                    KeyboardNavigation.TabIndex="2"
+                    KeyboardNavigation.TabNavigation="Cycle">
+              <ContentPresenter x:Name="PART_SelectedContentHost"
+                                ContentSource="SelectedContent"
+                                Margin="{TemplateBinding Padding}"
+                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+            </Border>
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="IsEnabled"
+                     Value="false">
+              <Setter Property="Foreground"
+                      Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+            </Trigger>
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Model.ChildrenCount}"
+                         Value="0">
+              <Setter Property="Visibility"
+                      Value="Collapsed"
+                      TargetName="MenuDropDownButton" />
+            </DataTrigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+    <Setter Property="ItemContainerStyle">
+      <Setter.Value>
+        <Style TargetType="{x:Type TabItem}">
+          <Setter Property="Visibility"
+                  Value="{Binding IsVisible, Converter={StaticResource BoolToVisibilityConverter}}" />
+          <Setter Property="IsSelected"
+                  Value="{Binding IsSelected, Mode=TwoWay}" />
+          <Setter Property="IsEnabled"
+                  Value="{Binding IsEnabled}" />
+          <Setter Property="ToolTip"
+                  Value="{Binding ToolTip}" />
+          <Setter Property="Padding"
+                  Value="2,0,2,0" />
+          <Setter Property="Margin"
+                  Value="0,2,0,0" />
+          <Setter Property="Template">
             <Setter.Value>
-                <Style TargetType="{x:Type TabItem}">
-                    <Setter Property="Visibility" Value="{Binding IsVisible, Converter={StaticResource BoolToVisibilityConverter}}"/>
-                    <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/>
-                    <Setter Property="IsEnabled" Value="{Binding IsEnabled}" />
-                    <Setter Property="ToolTip" Value="{Binding ToolTip}"/>
-                    <Setter Property="Padding" Value="2,0,2,0"/>
-                    <Setter Property="Margin" Value="0,2,0,0"/>
-                    <Setter Property="Template">
-                  <Setter.Value>
-                     <ControlTemplate TargetType="{x:Type TabItem}">
-                        <Grid SnapsToDevicePixels="true">
+              <ControlTemplate TargetType="{x:Type TabItem}">
+                <Grid SnapsToDevicePixels="true">
 
-                           <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}"
-                                               Background="{TemplateBinding Background}" 
-							                          Padding="{TemplateBinding Padding}"
-   				                                BorderThickness="1,1,1,0" >
-                                 <ContentPresenter 
-								                x:Name="Content" 
-								                ContentSource="Header" 
-                                                HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" 
-                                                VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
-                                                RecognizesAccessKey="True" 
-                                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                           </Border>
-                        </Grid>
-                        <ControlTemplate.Triggers>
-                           <Trigger Property="Selector.IsSelected" Value="true">
-                              <Setter Property="Background" Value="White" />
-                              <Setter Property="Panel.ZIndex" Value="1" />
-                              <Setter Property="Margin" Value="0,0,0,-2"/>
-                              <Setter Property="Margin" TargetName="Content" Value="0,0,0,3"/>
-                           </Trigger>
-                           <MultiTrigger>
-                              <MultiTrigger.Conditions>
-                                 <Condition Property="IsMouseOver" Value="true"/>
-                                 <Condition Property="Selector.IsSelected" Value="false"/>
-                              </MultiTrigger.Conditions>
-                              <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.GradientInactiveCaptionBrushKey}}" />
-                              <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
-                              <Setter Property="Panel.ZIndex" Value="0" />
-                           </MultiTrigger>
-                           <Trigger Property="IsEnabled" Value="false">
-                              <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                           </Trigger>
-                        </ControlTemplate.Triggers>
-                     </ControlTemplate>
-                  </Setter.Value>
-               </Setter>
-                </Style>
+                  <Border x:Name="Bd"
+                          BorderBrush="{TemplateBinding BorderBrush}"
+                          Background="{TemplateBinding Background}"
+                          Padding="{TemplateBinding Padding}"
+                          BorderThickness="1,1,1,0">
+                    <ContentPresenter x:Name="Content"
+                                      ContentSource="Header"
+                                      HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      RecognizesAccessKey="True"
+                                      SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                  </Border>
+                </Grid>
+                <ControlTemplate.Triggers>
+                  <Trigger Property="Selector.IsSelected"
+                           Value="true">
+                    <Setter Property="Background"
+                            Value="White" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                    <Setter Property="Margin"
+                            Value="0,0,0,-2" />
+                    <Setter Property="Margin"
+                            TargetName="Content"
+                            Value="0,0,0,3" />
+                  </Trigger>
+                  <MultiTrigger>
+                    <MultiTrigger.Conditions>
+                      <Condition Property="IsMouseOver"
+                                 Value="true" />
+                      <Condition Property="Selector.IsSelected"
+                                 Value="false" />
+                    </MultiTrigger.Conditions>
+                    <Setter Property="Background"
+                            Value="{DynamicResource {x:Static SystemColors.GradientInactiveCaptionBrushKey}}" />
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="0" />
+                  </MultiTrigger>
+                  <Trigger Property="IsEnabled"
+                           Value="false">
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+                  </Trigger>
+                </ControlTemplate.Triggers>
+              </ControlTemplate>
             </Setter.Value>
-        </Setter>
-        <Setter Property="ItemTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutDocumentTabItem Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
+          </Setter>
+        </Style>
+      </Setter.Value>
+    </Setter>
+    <Setter Property="ItemTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutDocumentTabItem Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
 
-        <Setter Property="ContentTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutDocumentControl Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+    <Setter Property="ContentTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutDocumentControl Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
 
-    <!--AnchorablePaneControlStyle-->
-    <Style x:Key="AnchorablePaneControlStyle" TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
-      <Setter Property="Foreground"
-              Value="{Binding Model.Root.Manager.Foreground, RelativeSource={RelativeSource Self}}" />
-      <Setter Property="Background"
-              Value="{Binding Model.Root.Manager.Background, RelativeSource={RelativeSource Self}}" />
-      <Setter Property="TabStripPlacement" Value="Bottom"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
-                    <Grid ClipToBounds="true" 
-                          SnapsToDevicePixels="true" 
-                          KeyboardNavigation.TabNavigation="Local"
-                          >
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="*"/>
-                            <RowDefinition Height="Auto"/>
-                        </Grid.RowDefinitions>
-                        <!--Following border is required to catch mouse events-->
-                        <Border Background="Transparent" Grid.RowSpan="2"/>
-                        <Border x:Name="ContentPanel" 
-                                BorderBrush="{TemplateBinding BorderBrush}" 
-                                BorderThickness="{TemplateBinding BorderThickness}" 
-                                Background="{TemplateBinding Background}"
-                                Grid.Column="0" 
-                                KeyboardNavigation.DirectionalNavigation="Contained" 
-                                Grid.Row="0" 
-                                KeyboardNavigation.TabIndex="2"
-                                KeyboardNavigation.TabNavigation="Cycle">
-                            <ContentPresenter x:Name="PART_SelectedContentHost"
-                                              ContentSource="SelectedContent" 
-                                              Margin="{TemplateBinding Padding}"
-                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                        </Border>
-                        <avalonDockControls:AnchorablePaneTabPanel x:Name="HeaderPanel" Margin="2,0,2,2" IsItemsHost="true" Grid.Row="1" KeyboardNavigation.TabIndex="1" Panel.ZIndex="1"/>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="IsEnabled" Value="false">
-                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                        </Trigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
+  <!--AnchorablePaneControlStyle-->
+  <Style x:Key="AnchorablePaneControlStyle"
+         TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
+    <Setter Property="Foreground"
+            Value="{Binding Model.Root.Manager.Foreground, RelativeSource={RelativeSource Self}}" />
+    <Setter Property="Background"
+            Value="{Binding Model.Root.Manager.Background, RelativeSource={RelativeSource Self}}" />
+    <Setter Property="TabStripPlacement"
+            Value="Bottom" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorablePaneControl}">
+          <Grid ClipToBounds="true"
+                SnapsToDevicePixels="true"
+                KeyboardNavigation.TabNavigation="Local">
+            <Grid.RowDefinitions>
+              <RowDefinition Height="*" />
+              <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+            <!--Following border is required to catch mouse events-->
+            <Border Background="Transparent"
+                    Grid.RowSpan="2" />
+            <Border x:Name="ContentPanel"
+                    BorderBrush="{TemplateBinding BorderBrush}"
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    Background="{TemplateBinding Background}"
+                    Grid.Column="0"
+                    KeyboardNavigation.DirectionalNavigation="Contained"
+                    Grid.Row="0"
+                    KeyboardNavigation.TabIndex="2"
+                    KeyboardNavigation.TabNavigation="Cycle">
+              <ContentPresenter x:Name="PART_SelectedContentHost"
+                                ContentSource="SelectedContent"
+                                Margin="{TemplateBinding Padding}"
+                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+            </Border>
+            <avalonDockControls:AnchorablePaneTabPanel x:Name="HeaderPanel"
+                                                       Margin="2,0,2,2"
+                                                       IsItemsHost="true"
+                                                       Grid.Row="1"
+                                                       KeyboardNavigation.TabIndex="1"
+                                                       Panel.ZIndex="1" />
+          </Grid>
+          <ControlTemplate.Triggers>
+            <Trigger Property="IsEnabled"
+                     Value="false">
+              <Setter Property="Foreground"
+                      Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+            </Trigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
 
-        <Setter Property="ItemContainerStyle">
+    <Setter Property="ItemContainerStyle">
+      <Setter.Value>
+        <Style TargetType="{x:Type TabItem}">
+          <Setter Property="IsSelected"
+                  Value="{Binding IsSelected, Mode=TwoWay}" />
+          <Setter Property="IsEnabled"
+                  Value="{Binding IsEnabled}" />
+          <Setter Property="ToolTip"
+                  Value="{Binding ToolTip}" />
+          <Setter Property="Template">
             <Setter.Value>
-                <Style TargetType="{x:Type TabItem}">
-                   <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}"/>
-                   <Setter Property="IsEnabled" Value="{Binding IsEnabled}" />
-                   <Setter Property="ToolTip" Value="{Binding ToolTip}"/>
-                   <Setter Property="Template">
-                  <Setter.Value>
-                     <ControlTemplate TargetType="{x:Type TabItem}">
-                        <Grid SnapsToDevicePixels="true">
-                           <Border x:Name="Bd" 
-							              BorderBrush="{TemplateBinding BorderBrush}"
-                                   BorderThickness="1,0,1,1"
-							              Background="{TemplateBinding Background}" 
-							              Padding="{TemplateBinding Padding}">
-                              <ContentPresenter 
-								            x:Name="Content" 
-								            ContentSource="Header" 
-                                    HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" 
-                                    VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
-                                    RecognizesAccessKey="True" 
-                                    SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                           </Border>
-                        </Grid>
-                        <ControlTemplate.Triggers>
-                           <Trigger Property="Selector.IsSelected"
-								        Value="true">
-                              <Setter Property="Background"
-									    Value="White" />
-                              <Setter Property="Panel.ZIndex" 
-                                        Value="1" />
-                              <Setter Property="Margin" Value="0,-1,-1,-2"/>
-                           </Trigger>
-                           <MultiTrigger>
-                              <MultiTrigger.Conditions>
-                                 <Condition Property="IsMouseOver" Value="true"/>
-                                 <Condition Property="Selector.IsSelected" Value="false"/>
-                              </MultiTrigger.Conditions>
-                              <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.GradientInactiveCaptionBrushKey}}" />
-                              <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
-                              <Setter Property="Panel.ZIndex" Value="0" />
-                           </MultiTrigger>
-                           <Trigger Property="IsEnabled" Value="false">
-                              <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
-                           </Trigger>
-                        </ControlTemplate.Triggers>
-                     </ControlTemplate>
-                  </Setter.Value>
-               </Setter>
-                    <Style.Triggers>
-                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type TabControl}}, Path=Items.Count, FallbackValue=1}" Value="1">
-                            <Setter Property="Visibility" Value="Collapsed"/>
-                        </DataTrigger>
-                    </Style.Triggers>
-                </Style>
+              <ControlTemplate TargetType="{x:Type TabItem}">
+                <Grid SnapsToDevicePixels="true">
+                  <Border x:Name="Bd"
+                          BorderBrush="{TemplateBinding BorderBrush}"
+                          BorderThickness="1,0,1,1"
+                          Background="{TemplateBinding Background}"
+                          Padding="{TemplateBinding Padding}">
+                    <ContentPresenter x:Name="Content"
+                                      ContentSource="Header"
+                                      HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"
+                                      RecognizesAccessKey="True"
+                                      SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                  </Border>
+                </Grid>
+                <ControlTemplate.Triggers>
+                  <Trigger Property="Selector.IsSelected"
+                           Value="true">
+                    <Setter Property="Background"
+                            Value="White" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="1" />
+                    <Setter Property="Margin"
+                            Value="0,-1,-1,-2" />
+                  </Trigger>
+                  <MultiTrigger>
+                    <MultiTrigger.Conditions>
+                      <Condition Property="IsMouseOver"
+                                 Value="true" />
+                      <Condition Property="Selector.IsSelected"
+                                 Value="false" />
+                    </MultiTrigger.Conditions>
+                    <Setter Property="Background"
+                            Value="{DynamicResource {x:Static SystemColors.GradientInactiveCaptionBrushKey}}" />
+                    <Setter Property="BorderBrush"
+                            Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+                    <Setter Property="Panel.ZIndex"
+                            Value="0" />
+                  </MultiTrigger>
+                  <Trigger Property="IsEnabled"
+                           Value="false">
+                    <Setter Property="Foreground"
+                            Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
+                  </Trigger>
+                </ControlTemplate.Triggers>
+              </ControlTemplate>
             </Setter.Value>
-        </Setter>
+          </Setter>
+          <Style.Triggers>
+            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type TabControl}}, Path=Items.Count, FallbackValue=1}"
+                         Value="1">
+              <Setter Property="Visibility"
+                      Value="Collapsed" />
+            </DataTrigger>
+          </Style.Triggers>
+        </Style>
+      </Setter.Value>
+    </Setter>
 
-        <Setter Property="ItemTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutAnchorableTabItem Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
+    <Setter Property="ItemTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutAnchorableTabItem Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
 
-        <Setter Property="ContentTemplate">
-            <Setter.Value>
-                <DataTemplate>
-                    <avalonDockControls:LayoutAnchorableControl Model="{Binding}"/>
-                </DataTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+    <Setter Property="ContentTemplate">
+      <Setter.Value>
+        <DataTemplate>
+          <avalonDockControls:LayoutAnchorableControl Model="{Binding}" />
+        </DataTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
 
-    <Style TargetType="avalonDockControls:AnchorablePaneTitle">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate>
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <Grid>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*"/>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <avalonDockControls:DropDownControlArea 
-                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                >
-                                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                                              ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                              ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </avalonDockControls:DropDownControlArea>
+  <Style TargetType="avalonDockControls:AnchorablePaneTitle">
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate>
+          <Border Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <Grid>
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                      DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                  ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+              </avalonDockControls:DropDownControlArea>
 
-                            <avalonDockControls:DropDownButton
-                                Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
-                                Focusable="False"
-                                Grid.Column="1"
-                                DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
-                              <Border Background="White">
-                                 <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMenu.png" />
-                              </Border>
-                           </avalonDockControls:DropDownButton>
+              <avalonDockControls:DropDownButton Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
+                                                 Focusable="False"
+                                                 Grid.Column="1"
+                                                 DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                 DropDownContextMenuDataContext="{Binding Path=LayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
+                                                 ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
+                <Border Background="White">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMenu.png">
+                  </Image>
+                </Border>
+              </avalonDockControls:DropDownButton>
 
-                            <Button x:Name="PART_AutoHidePin" 
-                                Grid.Column="2" 
-                                Focusable="False"
-                                Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                Command="{Binding Path=LayoutItem.AutoHideCommand, RelativeSource={RelativeSource TemplatedParent}}" 
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnAutoHide_Hint}">
-                              <Border Background="White">
-                                 <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinAutoHide.png" />
-                              </Border>
-                           </Button>
+              <Button x:Name="PART_AutoHidePin"
+                      Grid.Column="2"
+                      Focusable="False"
+                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                      Command="{Binding Path=LayoutItem.AutoHideCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                      ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnAutoHide_Hint}">
+                <Border Background="White">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinAutoHide.png">
+                  </Image>
+                </Border>
+              </Button>
 
-                            <Button x:Name="PART_HidePin" 
-                                Grid.Column="3" 
-                                Focusable="False"
-                                Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                Command="{Binding Path=LayoutItem.HideCommand, RelativeSource={RelativeSource TemplatedParent}}" 
-                                ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}">
-                              <Border Background="White">
-                                 <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png" />
-                              </Border>
-                           </Button>
+              <Button x:Name="PART_HidePin"
+                      Grid.Column="3"
+                      Focusable="False"
+                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                      Command="{Binding Path=LayoutItem.HideCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                      ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}">
+                <Border Background="White">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png">
+                  </Image>
+                </Border>
+              </Button>
 
 
-                        </Grid>
-                    </Border>
-                    <ControlTemplate.Triggers>
-                        <DataTrigger Binding="{Binding Model.IsAutoHidden, RelativeSource={RelativeSource Mode=Self}}" Value="True">
-                            <Setter Property="LayoutTransform" TargetName="PART_AutoHidePin">
-                                <Setter.Value>
-                                    <RotateTransform Angle="90"/>
-                                </Setter.Value>
-                            </Setter>
-                        </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+            </Grid>
+          </Border>
+          <ControlTemplate.Triggers>
+            <DataTrigger Binding="{Binding Model.IsAutoHidden, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="LayoutTransform"
+                      TargetName="PART_AutoHidePin">
+                <Setter.Value>
+                  <RotateTransform Angle="90" />
+                </Setter.Value>
+              </Setter>
+            </DataTrigger>
+            <DataTrigger Binding="{Binding Model.CanClose, RelativeSource={RelativeSource Mode=Self}}"
+                         Value="True">
+              <Setter Property="Command"
+                      TargetName="PART_HidePin"
+                      Value="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}" />
+              <Setter Property="ToolTip"
+                      TargetName="PART_HidePin"
+                      Value="{x:Static avalonDockProperties:Resources.Document_Close}" />
 
-    <ControlTemplate x:Key="AnchorSideTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorSideControl}">
-        <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
-            <ItemsControl.ItemsPanel>
-                <ItemsPanelTemplate>
-                    <StackPanel Orientation="{Binding Path=Model.Side, RelativeSource={RelativeSource AncestorType={x:Type avalonDockControls:LayoutAnchorSideControl}, Mode=FindAncestor}, Converter={StaticResource AnchorSideToOrientationConverter}}"/>
-                </ItemsPanelTemplate>
-            </ItemsControl.ItemsPanel>
-        </ItemsControl>
-    </ControlTemplate>
+            </DataTrigger>
+          </ControlTemplate.Triggers>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
 
-    <ControlTemplate x:Key="AnchorGroupTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorGroupControl}">
-        <ItemsControl 
-            ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}" 
-            >
-            <ItemsControl.LayoutTransform>
-                <RotateTransform Angle="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Model.Parent.Side, Converter={StaticResource AnchorSideToAngleConverter}}"/>
-            </ItemsControl.LayoutTransform>
-            <ItemsControl.ItemsPanel>
-                <ItemsPanelTemplate>
-                    <StackPanel Orientation="Horizontal"/>
-                </ItemsPanelTemplate>
-            </ItemsControl.ItemsPanel>
-        </ItemsControl>
-    </ControlTemplate>
+  <ControlTemplate x:Key="AnchorSideTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorSideControl}">
+    <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
+      <ItemsControl.ItemsPanel>
+        <ItemsPanelTemplate>
+          <StackPanel Orientation="{Binding Path=Model.Side, RelativeSource={RelativeSource AncestorType={x:Type avalonDockControls:LayoutAnchorSideControl}, Mode=FindAncestor}, Converter={StaticResource AnchorSideToOrientationConverter}}" />
+        </ItemsPanelTemplate>
+      </ItemsControl.ItemsPanel>
+    </ItemsControl>
+  </ControlTemplate>
 
-    <ControlTemplate x:Key="AnchorTemplate" TargetType="{x:Type avalonDockControls:LayoutAnchorControl}">
-        <Border BorderThickness="1" 
-                BorderBrush="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"
-                Margin="2"
-                Padding="2">
-            <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                              ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                              ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"/>
-        </Border>
-    </ControlTemplate>
+  <ControlTemplate x:Key="AnchorGroupTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorGroupControl}">
+    <ItemsControl ItemsSource="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Children}">
+      <ItemsControl.LayoutTransform>
+        <RotateTransform Angle="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Model.Parent.Side, Converter={StaticResource AnchorSideToAngleConverter}}" />
+      </ItemsControl.LayoutTransform>
+      <ItemsControl.ItemsPanel>
+        <ItemsPanelTemplate>
+          <StackPanel Orientation="Horizontal" />
+        </ItemsPanelTemplate>
+      </ItemsControl.ItemsPanel>
+    </ItemsControl>
+  </ControlTemplate>
 
-    <Style x:Key="{x:Type avalonDockControls:OverlayWindow}" TargetType="{x:Type avalonDockControls:OverlayWindow}">
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:OverlayWindow}">
-                    <Canvas x:Name="PART_DropTargetsContainer" Opacity="0.9">
-                        <Path x:Name="PART_PreviewBox" Fill="AliceBlue" StrokeThickness="2" Stroke="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
-                        <Grid x:Name="PART_DockingManagerDropTargets" >
-                            <Image x:Name="PART_DockingManagerDropTargetLeft" VerticalAlignment="Center" HorizontalAlignment="Left" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockLeft.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetRight" VerticalAlignment="Center" HorizontalAlignment="Right" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockRight.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetBottom" VerticalAlignment="Bottom" HorizontalAlignment="Center" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockBottom.PNG" Stretch="None" />
-                            <Image x:Name="PART_DockingManagerDropTargetTop" VerticalAlignment="Top" HorizontalAlignment="Center" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockTop.PNG" Stretch="None"/>
-                        </Grid>
-                        <Grid x:Name="PART_AnchorablePaneDropTargets">
-                            <Grid Width="88" Height="88" VerticalAlignment="Center" HorizontalAlignment="Center">
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Image Grid.ColumnSpan="3" Grid.RowSpan="3" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockPaneEmpty.PNG"  Stretch="Uniform"/>
-                                <Border Name="PART_AnchorablePaneDropTargetTop" Grid.Column="1" Grid.Row="0">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneTop.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetRight" Grid.Column="2" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneRight.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetBottom" Grid.Column="1" Grid.Row="2">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneBottom.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetLeft" Grid.Column="0" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneLeft.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_AnchorablePaneDropTargetInto" Grid.Column="1" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneInside.png"  Stretch="None"/>
-                                </Border>                                
-                            </Grid>
-                        </Grid>
-                        <Grid x:Name="PART_DocumentPaneDropTargets">
-                            <Grid Width="88" Height="88" VerticalAlignment="Center" HorizontalAlignment="Center">
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                    <ColumnDefinition/>
-                                </Grid.ColumnDefinitions>
-                                <Grid.RowDefinitions>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                    <RowDefinition/>
-                                </Grid.RowDefinitions>
-                                <Image Grid.ColumnSpan="3" Grid.RowSpan="3" Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockPaneEmpty.PNG"  Stretch="Uniform"/>
-                                <Border Name="PART_DocumentPaneDropTargetTop" Grid.Column="1" Grid.Row="0">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneTop.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetRight" Grid.Column="2" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneRight.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetBottom" Grid.Column="1" Grid.Row="2">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneBottom.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetLeft" Grid.Column="0" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneLeft.png"  Stretch="None"/>
-                                </Border>
-                                <Border Name="PART_DocumentPaneDropTargetInto" Grid.Column="1" Grid.Row="1">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneInside.png"  Stretch="None"/>
-                                </Border>
-                            </Grid>
-                        </Grid>
-                    </Canvas>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+  <ControlTemplate x:Key="AnchorTemplate"
+                   TargetType="{x:Type avalonDockControls:LayoutAnchorControl}">
+    <Border BorderThickness="1"
+            BorderBrush="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"
+            Margin="2"
+            Padding="2">
+      <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                        ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
+                        ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+    </Border>
+  </ControlTemplate>
 
-    <DataTemplate x:Key="DocumentHeaderTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis"/>
-    </DataTemplate>
+  <Style x:Key="{x:Type avalonDockControls:OverlayWindow}"
+         TargetType="{x:Type avalonDockControls:OverlayWindow}">
+    <Setter Property="Background"
+            Value="Transparent" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDockControls:OverlayWindow}">
+          <Canvas x:Name="PART_DropTargetsContainer"
+                  Opacity="0.9">
+            <Path x:Name="PART_PreviewBox"
+                  Fill="AliceBlue"
+                  StrokeThickness="2"
+                  Stroke="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+            <Grid x:Name="PART_DockingManagerDropTargets">
+              <Image x:Name="PART_DockingManagerDropTargetLeft"
+                     VerticalAlignment="Center"
+                     HorizontalAlignment="Left"
+                     Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockLeft.PNG"
+                     Stretch="None">
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetRight"
+                     VerticalAlignment="Center"
+                     HorizontalAlignment="Right"
+                     Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockRight.PNG"
+                     Stretch="None">
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetBottom"
+                     VerticalAlignment="Bottom"
+                     HorizontalAlignment="Center"
+                     Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockBottom.PNG"
+                     Stretch="None">
+              </Image>
+              <Image x:Name="PART_DockingManagerDropTargetTop"
+                     VerticalAlignment="Top"
+                     HorizontalAlignment="Center"
+                     Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockTop.PNG"
+                     Stretch="None">
+              </Image>
+            </Grid>
+            <Grid x:Name="PART_AnchorablePaneDropTargets">
+              <Grid Width="88"
+                    Height="88"
+                    VerticalAlignment="Center"
+                    HorizontalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Image Grid.ColumnSpan="3"
+                       Grid.RowSpan="3"
+                       Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockPaneEmpty.PNG"
+                       Stretch="Uniform">
+                </Image>
+                <Border Name="PART_AnchorablePaneDropTargetTop"
+                        Grid.Column="1"
+                        Grid.Row="0">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneTop.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetRight"
+                        Grid.Column="2"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneRight.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetBottom"
+                        Grid.Column="1"
+                        Grid.Row="2">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneBottom.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetLeft"
+                        Grid.Column="0"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneLeft.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_AnchorablePaneDropTargetInto"
+                        Grid.Column="1"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneInside.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+              </Grid>
+            </Grid>
+            <Grid x:Name="PART_DocumentPaneDropTargets">
+              <Grid Width="88"
+                    Height="88"
+                    VerticalAlignment="Center"
+                    HorizontalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                  <ColumnDefinition />
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                  <RowDefinition />
+                  <RowDefinition />
+                  <RowDefinition />
+                </Grid.RowDefinitions>
+                <Image Grid.ColumnSpan="3"
+                       Grid.RowSpan="3"
+                       Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/DockPaneEmpty.PNG"
+                       Stretch="Uniform">
+                </Image>
+                <Border Name="PART_DocumentPaneDropTargetTop"
+                        Grid.Column="1"
+                        Grid.Row="0">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneTop.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetRight"
+                        Grid.Column="2"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneRight.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetBottom"
+                        Grid.Column="1"
+                        Grid.Row="2">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneBottom.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetLeft"
+                        Grid.Column="0"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockDocPaneLeft.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+                <Border Name="PART_DocumentPaneDropTargetInto"
+                        Grid.Column="1"
+                        Grid.Row="1">
+                  <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/InnerDockPaneInside.png"
+                         Stretch="None">
+                  </Image>
+                </Border>
+              </Grid>
+            </Grid>
+          </Canvas>
+        </ControlTemplate>
+      </Setter.Value>
+    </Setter>
+  </Style>
 
-    <DataTemplate x:Key="AnchorableHeaderTemplate">
-        <Grid>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="Auto"/>
-                <ColumnDefinition/>
-            </Grid.ColumnDefinitions>
-            <Image x:Name="icon" Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="Uniform"/>
-            <TextBlock x:Name="title" Margin="4,0,0,0" Text="{Binding Title}" TextTrimming="CharacterEllipsis" Grid.Column="1"/>
-        </Grid>
-        <DataTemplate.Triggers>
-            <DataTrigger Binding="{Binding IconSource}" Value="{x:Null}">
-                <Setter Property="Margin" Value="0" TargetName="title"/>
-            </DataTrigger>
-        </DataTemplate.Triggers>
-    </DataTemplate>
+  <DataTemplate x:Key="DocumentHeaderTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis">
+    </TextBlock>
+  </DataTemplate>
 
-    <DataTemplate x:Key="DocumentTitleTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis"/>
-    </DataTemplate>
+  <DataTemplate x:Key="AnchorableHeaderTemplate">
+    <Grid>
+      <Grid.ColumnDefinitions>
+        <ColumnDefinition Width="Auto" />
+        <ColumnDefinition />
+      </Grid.ColumnDefinitions>
+      <Image x:Name="icon"
+             Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+             Stretch="Uniform">
+      </Image>
+      <TextBlock x:Name="title"
+                 Margin="4,0,0,0"
+                 Text="{Binding Title}"
+                 TextTrimming="CharacterEllipsis"
+                 Grid.Column="1">
+      </TextBlock>
+    </Grid>
+    <DataTemplate.Triggers>
+      <DataTrigger Binding="{Binding IconSource}"
+                   Value="{x:Null}">
+        <Setter Property="Margin"
+                Value="0"
+                TargetName="title" />
+      </DataTrigger>
+    </DataTemplate.Triggers>
+  </DataTemplate>
 
-    <DataTemplate x:Key="AnchorableTitleTemplate">
-        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis"/>
-    </DataTemplate>
+  <DataTemplate x:Key="DocumentTitleTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis">
+    </TextBlock>
+  </DataTemplate>
 
-    <DataTemplate x:Key="IconContentTemplate">
-        <Image Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="Uniform"/>
-    </DataTemplate>
+  <DataTemplate x:Key="AnchorableTitleTemplate">
+    <TextBlock Text="{Binding Title}"
+               TextTrimming="CharacterEllipsis">
+    </TextBlock>
+  </DataTemplate>
 
-    <ContextMenu x:Key="AnchorableContextMenu">
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Float}" 
-                Command="{Binding Path=FloatCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Dock}" 
-                Command="{Binding Path=DockCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_DockAsDocument}" 
-                Command="{Binding Path=DockAsDocumentCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_AutoHide}" 
-                Command="{Binding Path=AutoHideCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Hide}" 
-                Command="{Binding Path=HideCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-    </ContextMenu>
+  <DataTemplate x:Key="IconContentTemplate">
+    <Image Source="{Binding IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+           Stretch="Uniform">
+    </Image>
+  </DataTemplate>
 
-    <ContextMenu x:Key="DocumentContextMenu">
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}" 
-                  Command="{Binding Path=CloseCommand}"
-                  Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAllButThis}" 
-                  Command="{Binding Path=CloseAllButThisCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAll}"
-                  Command="{Binding Path=CloseAllCommand}" />
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Float}" 
-                  Command="{Binding Path=FloatCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_DockAsDocument}" 
-                  Command="{Binding Path=DockAsDocumentCommand}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewHorizontalTabGroup}" 
-                Command="{Binding Path=NewHorizontalTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewVerticalTabGroup}" 
-                Command="{Binding Path=NewVerticalTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToNextTabGroup}" 
-                Command="{Binding Path=MoveToNextTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-        <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToPreviousTabGroup}" 
-                Command="{Binding Path=MoveToPreviousTabGroupCommand}"
-                Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"/>
-    </ContextMenu>
+  <ContextMenu x:Key="AnchorableContextMenu">
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Float}"
+              Command="{Binding Path=FloatCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Dock}"
+              Command="{Binding Path=DockCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_DockAsDocument}"
+              Command="{Binding Path=DockAsDocumentCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_AutoHide}"
+              Command="{Binding Path=AutoHideCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}"
+              Command="{Binding Path=CloseCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Anchorable_Hide}"
+              Command="{Binding Path=HideCommand}">
+      <MenuItem.Visibility>
+        <MultiBinding Converter="{StaticResource AnchorableContextMenuHideVisibilityConverter}">
+          <Binding Path="IsEnabled"
+                   RelativeSource="{RelativeSource Self}"
+                   Mode="OneWay"
+                   Converter="{StaticResource BoolToVisibilityConverter}" />
+          <Binding Path="CanClose" />
+        </MultiBinding>
+      </MenuItem.Visibility>
+    </MenuItem>
+  </ContextMenu>
 
-    <!--DockingManager-->
-    <Style x:Key="{x:Type avalonDock:DockingManager}" TargetType="{x:Type avalonDock:DockingManager}">
-        <Setter Property="DocumentPaneControlStyle" Value="{StaticResource DocumentPaneControlStyle}"/>
-        <Setter Property="AnchorablePaneControlStyle" Value="{StaticResource AnchorablePaneControlStyle}"/>
-        <Setter Property="AnchorSideTemplate" Value="{StaticResource AnchorSideTemplate}"/>
-        <Setter Property="AnchorGroupTemplate" Value="{StaticResource AnchorGroupTemplate}"/>
-        <Setter Property="AnchorTemplate" Value="{StaticResource AnchorTemplate}"/>
-        <Setter Property="DocumentHeaderTemplate" Value="{StaticResource DocumentHeaderTemplate}"/>
-        <Setter Property="AnchorableHeaderTemplate" Value="{StaticResource AnchorableHeaderTemplate}"/>
-        <Setter Property="DocumentTitleTemplate" Value="{StaticResource DocumentTitleTemplate}"/>
-        <Setter Property="AnchorableTitleTemplate" Value="{StaticResource AnchorableTitleTemplate}"/>
-        <Setter Property="AnchorableContextMenu" Value="{StaticResource AnchorableContextMenu}"/>
-        <Setter Property="DocumentContextMenu" Value="{StaticResource DocumentContextMenu}"/>
-        <Setter Property="DocumentPaneMenuItemHeaderTemplate" Value="{StaticResource DocumentHeaderTemplate}"/>
-        <Setter Property="IconContentTemplate" Value="{StaticResource IconContentTemplate}"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDock:DockingManager}">
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                        <Grid FlowDirection="LeftToRight">
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="Auto"/>
-                                <RowDefinition Height="*"/>
-                                <RowDefinition Height="Auto"/>
-                            </Grid.RowDefinitions>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="*"/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <ContentPresenter Content="{TemplateBinding LayoutRootPanel}" Grid.Column="1" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding RightSidePanel}" Grid.Column="2" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding LeftSidePanel}" Grid.Column="0" Grid.Row="1"/>
-                            <ContentPresenter Content="{TemplateBinding TopSidePanel}" Grid.Column="1" Grid.Row="0"/>
-                            <ContentPresenter Content="{TemplateBinding BottomSidePanel}" Grid.Column="1" Grid.Row="2"/>
-                            <ContentPresenter 
-                                x:Name="PART_AutoHideArea"
+  <ContextMenu x:Key="DocumentContextMenu">
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Close}"
+              Command="{Binding Path=CloseCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAllButThis}"
+              Command="{Binding Path=CloseAllButThisCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_CloseAll}"
+              Command="{Binding Path=CloseAllCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_Float}"
+              Command="{Binding Path=FloatCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_DockAsDocument}"
+              Command="{Binding Path=DockAsDocumentCommand}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewHorizontalTabGroup}"
+              Command="{Binding Path=NewHorizontalTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_NewVerticalTabGroup}"
+              Command="{Binding Path=NewVerticalTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToNextTabGroup}"
+              Command="{Binding Path=MoveToNextTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+    <MenuItem Header="{x:Static avalonDockProperties:Resources.Document_MoveToPreviousTabGroup}"
+              Command="{Binding Path=MoveToPreviousTabGroupCommand}"
+              Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}" />
+  </ContextMenu>
+
+  <!--DockingManager-->
+  <Style x:Key="{x:Type avalonDock:DockingManager}"
+         TargetType="{x:Type avalonDock:DockingManager}">
+    <Setter Property="DocumentPaneControlStyle"
+            Value="{StaticResource DocumentPaneControlStyle}" />
+    <Setter Property="AnchorablePaneControlStyle"
+            Value="{StaticResource AnchorablePaneControlStyle}" />
+    <Setter Property="AnchorSideTemplate"
+            Value="{StaticResource AnchorSideTemplate}" />
+    <Setter Property="AnchorGroupTemplate"
+            Value="{StaticResource AnchorGroupTemplate}" />
+    <Setter Property="AnchorTemplate"
+            Value="{StaticResource AnchorTemplate}" />
+    <Setter Property="DocumentHeaderTemplate"
+            Value="{StaticResource DocumentHeaderTemplate}" />
+    <Setter Property="AnchorableHeaderTemplate"
+            Value="{StaticResource AnchorableHeaderTemplate}" />
+    <Setter Property="DocumentTitleTemplate"
+            Value="{StaticResource DocumentTitleTemplate}" />
+    <Setter Property="AnchorableTitleTemplate"
+            Value="{StaticResource AnchorableTitleTemplate}" />
+    <Setter Property="AnchorableContextMenu"
+            Value="{StaticResource AnchorableContextMenu}" />
+    <Setter Property="DocumentContextMenu"
+            Value="{StaticResource DocumentContextMenu}" />
+    <Setter Property="DocumentPaneMenuItemHeaderTemplate"
+            Value="{StaticResource DocumentHeaderTemplate}" />
+    <Setter Property="IconContentTemplate"
+            Value="{StaticResource IconContentTemplate}" />
+    <Setter Property="Template">
+      <Setter.Value>
+        <ControlTemplate TargetType="{x:Type avalonDock:DockingManager}">
+          <Border Background="{TemplateBinding Background}"
+                  BorderBrush="{TemplateBinding BorderBrush}"
+                  BorderThickness="{TemplateBinding BorderThickness}">
+            <Grid FlowDirection="LeftToRight">
+              <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+                <RowDefinition Height="Auto" />
+              </Grid.RowDefinitions>
+              <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+              </Grid.ColumnDefinitions>
+              <ContentPresenter Content="{TemplateBinding LayoutRootPanel}"
+                                Grid.Column="1"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding RightSidePanel}"
+                                Grid.Column="2"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding LeftSidePanel}"
+                                Grid.Column="0"
+                                Grid.Row="1" />
+              <ContentPresenter Content="{TemplateBinding TopSidePanel}"
+                                Grid.Column="1"
+                                Grid.Row="0" />
+              <ContentPresenter Content="{TemplateBinding BottomSidePanel}"
+                                Grid.Column="1"
+                                Grid.Row="2" />
+              <ContentPresenter x:Name="PART_AutoHideArea"
                                 Content="{TemplateBinding AutoHideWindow}"
                                 VerticalAlignment="{TemplateBinding VerticalAlignment}"
                                 HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
-                                Grid.Column="1" Grid.Row="1"/> <!---->
+                                Grid.Column="1"
+                                Grid.Row="1" />
+              <!---->
                         </Grid>
                     </Border>
                 </ControlTemplate>
@@ -606,480 +814,588 @@
     </Style>
 
     <!--LayoutGridResizerControl-->
-    <Style x:Key="{x:Type avalonDockControls:LayoutGridResizerControl}" TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
-        <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
-                    <Border Background="{TemplateBinding Background}"/>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+              <Style x:Key="{x:Type avalonDockControls:LayoutGridResizerControl}"
+                     TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
+                <Setter Property="Background"
+                        Value="Transparent" />
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutGridResizerControl}">
+                      <Border Background="{TemplateBinding Background}" />
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}">
-                            <ContentPresenter Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}"
-                                              ContentTemplate="{Binding LayoutItem.View.ContentTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                              ContentTemplateSelector="{Binding LayoutItem.View.ContentTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-                    </Border>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+              <Style TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentControl}">
+                      <Border Background="{TemplateBinding Background}"
+                              BorderBrush="{TemplateBinding BorderBrush}"
+                              BorderThickness="{TemplateBinding BorderThickness}">
+                        <ContentPresenter Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}"
+                                          ContentTemplate="{Binding LayoutItem.View.ContentTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                          ContentTemplateSelector="{Binding LayoutItem.View.ContentTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+                      </Border>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
-                    <avalonDockControls:DropDownControlArea 
-                            DropDownContextMenu="{Binding Root.Manager.DocumentContextMenu}"
-                            DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+              <Style TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentTabItem}">
+                      <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Root.Manager.DocumentContextMenu}"
+                                                              DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
                         <Border Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}">
-                            <Grid>
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="*"/>
-                                    <ColumnDefinition Width="Auto"/>
-                                </Grid.ColumnDefinitions>
-                                <Border Grid.ColumnSpan="2" Background="Transparent"/>
-                                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
-                                                  ContentTemplate="{Binding DocumentHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                                                  ContentTemplateSelector="{Binding DocumentHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
-                                <!-- Close button should be moved out to the container style --><!-- https://github.com/xceedsoftware/wpftoolkit/pull/1184/files -->
-                                <Button x:Name="DocumentCloseButton" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Grid.Column="1" Margin="1,-5,-3,-6" Visibility="Hidden" 
-                                        Command="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}">
-                                    <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png"/>
-                                </Button>
-                            </Grid>
+                          <Grid>
+                            <Grid.ColumnDefinitions>
+                              <ColumnDefinition Width="*" />
+                              <ColumnDefinition Width="Auto" />
+                            </Grid.ColumnDefinitions>
+                            <Border Grid.ColumnSpan="2"
+                                    Background="Transparent" />
+                            <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
+                                              ContentTemplate="{Binding DocumentHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
+                                              ContentTemplateSelector="{Binding DocumentHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+                            <!-- Close button should be moved out to the container style -->
+                            <Button x:Name="DocumentCloseButton"
+                                    Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                    Grid.Column="1"
+                                    Margin="5,0,0,0"
+                                    Visibility="Hidden"
+                                    Command="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                                    ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}">
+                              <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png">
+                              </Image>
+                            </Button>
+                          </Grid>
                         </Border>
-                    </avalonDockControls:DropDownControlArea>
-                    <ControlTemplate.Triggers>
-                        <DataTrigger Binding="{Binding Path=IsSelected}" Value="true">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
+                      </avalonDockControls:DropDownControlArea>
+                      <ControlTemplate.Triggers>
+                        <DataTrigger Binding="{Binding Path=IsSelected}"
+                                     Value="true">
+                          <Setter Property="Visibility"
+                                  Value="Visible"
+                                  TargetName="DocumentCloseButton" />
                         </DataTrigger>
-                        <Trigger Property="IsMouseOver" Value="True">
-                            <Setter Property="Visibility" Value="Visible" TargetName="DocumentCloseButton"  />
+                        <Trigger Property="IsMouseOver"
+                                 Value="True">
+                          <Setter Property="Visibility"
+                                  Value="Visible"
+                                  TargetName="DocumentCloseButton" />
                         </Trigger>
-                        <DataTrigger Binding="{Binding Path=CanClose}" Value="false">
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="DocumentCloseButton"  />
+                        <DataTrigger Binding="{Binding Path=CanClose}"
+                                     Value="false">
+                          <Setter Property="Visibility"
+                                  Value="Collapsed"
+                                  TargetName="DocumentCloseButton" />
                         </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                      </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
-                    <avalonDockControls:DropDownControlArea 
-                            DropDownContextMenu="{Binding Root.Manager.AnchorableContextMenu}"
-                            DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+              <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableTabItem}">
+                      <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Root.Manager.AnchorableContextMenu}"
+                                                              DropDownContextMenuDataContext="{Binding LayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
                         <Border Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}">
-                            <Grid>
-                                <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
+                          <Grid>
+                            <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"
                                               ContentTemplate="{Binding AnchorableHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
-                                              ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"/>
-                                <avalonDockControls:DropDownControlArea 
-                                    Grid.Column="0"
-                                    DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                    DropDownContextMenuDataContext="{Binding Path=Model, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </Grid>
+                                              ContentTemplateSelector="{Binding AnchorableHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
+                            <avalonDockControls:DropDownControlArea Grid.Column="0"
+                                                                    DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                                    DropDownContextMenuDataContext="{Binding Path=Model, RelativeSource={RelativeSource TemplatedParent}}">
+                            </avalonDockControls:DropDownControlArea>
+                          </Grid>
                         </Border>
-                    </avalonDockControls:DropDownControlArea>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                      </avalonDockControls:DropDownControlArea>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
-                    <Border Background="{TemplateBinding Background}"
-                            BorderBrush="{TemplateBinding BorderBrush}"
-                            BorderThickness="{TemplateBinding BorderThickness}"
-                            KeyboardNavigation.TabNavigation="Cycle">
+              <Style TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableControl}">
+                      <Border Background="{TemplateBinding Background}"
+                              BorderBrush="{TemplateBinding BorderBrush}"
+                              BorderThickness="{TemplateBinding BorderThickness}"
+                              KeyboardNavigation.TabNavigation="Cycle">
                         <Grid>
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="Auto"/>
-                                <RowDefinition Height="*"/>
-                            </Grid.RowDefinitions>
-                            <Border x:Name="Header">
-                                <avalonDockControls:AnchorablePaneTitle Model="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}"/>
-                            </Border>
+                          <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" />
+                            <RowDefinition Height="*" />
+                          </Grid.RowDefinitions>
+                          <Border x:Name="Header">
+                            <avalonDockControls:AnchorablePaneTitle Model="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" />
+                          </Border>
 
-                            <ContentPresenter 
-                                Grid.Row="1"
-                                FlowDirection="{TemplateBinding FlowDirection}"
-                                Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}"/>
+                          <ContentPresenter Grid.Row="1"
+                                            FlowDirection="{TemplateBinding FlowDirection}"
+                                            Content="{Binding LayoutItem.View, RelativeSource={RelativeSource TemplatedParent}}" />
 
-                            <!--<ContentPresenter 
+                          <!--<ContentPresenter 
                                 FlowDirection="{TemplateBinding FlowDirection}"
                                 Content="{Binding Model.Content, RelativeSource={RelativeSource TemplatedParent}}" 
                                 ContentTemplate="{Binding LayoutItemTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
                                 ContentTemplateSelector="{Binding LayoutItemTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
                                 Grid.Row="1"/>-->
                         </Grid>
-                    </Border>
-                    <ControlTemplate.Triggers>
+                      </Border>
+                      <ControlTemplate.Triggers>
                         <MultiDataTrigger>
-                            <MultiDataTrigger.Conditions>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.IsFloating}" Value="True"/>
-                                <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.Parent.IsDirectlyHostedInFloatingWindow}" Value="True"/>
-                            </MultiDataTrigger.Conditions>
-                            <Setter Property="Visibility" Value="Collapsed" TargetName="Header"/>
+                          <MultiDataTrigger.Conditions>
+                            <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.IsFloating}"
+                                       Value="True" />
+                            <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=Model.Parent.IsDirectlyHostedInFloatingWindow}"
+                                       Value="True" />
+                          </MultiDataTrigger.Conditions>
+                          <Setter Property="Visibility"
+                                  Value="Collapsed"
+                                  TargetName="Header" />
                         </MultiDataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                      </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style x:Key="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}" TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
-        <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"/>
-        <Setter Property="BorderThickness" Value="3"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
-            <Setter.Value>
-                <shell:WindowChrome
-                    ResizeBorderThickness="10"
-                    CaptionHeight="16"
-                    CornerRadius="3,3,3,3"
-                    GlassFrameThickness="0"
-                    ShowSystemMenu="False"/>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}">
-                            <Grid Margin="3">
-                                <Grid.RowDefinitions>
-                                    <RowDefinition MinHeight="16"/>
-                                    <RowDefinition Height="*"/>
-                                </Grid.RowDefinitions>
-                                <Grid UseLayoutRounding="True"><!-- https://github.com/xceedsoftware/wpftoolkit/issues/1203 -->
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="*"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                    </Grid.ColumnDefinitions>
-                                    <ContentPresenter Content="{Binding Model.RootDocument, RelativeSource={RelativeSource TemplatedParent}}" 
-                                              ContentTemplate="{Binding Model.Root.Manager.DocumentTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                              ContentTemplateSelector="{Binding Model.Root.Manager.DocumentTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
+              <Style x:Key="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}"
+                     TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
+                <Setter Property="Background"
+                        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
+                <Setter Property="BorderBrush"
+                        Value="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}" />
+                <Setter Property="BorderThickness"
+                        Value="3" />
+                <Setter Property="shell:WindowChrome.WindowChrome">
+                  <Setter.Value>
+                    <shell:WindowChrome ResizeBorderThickness="10"
+                                        CaptionHeight="16"
+                                        CornerRadius="3,3,3,3"
+                                        GlassFrameThickness="0"
+                                        ShowSystemMenu="False" />
+                  </Setter.Value>
+                </Setter>
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutDocumentFloatingWindowControl}">
+                      <Grid>
+                        <Border x:Name="WindowBorder"
+                                BorderThickness="{TemplateBinding BorderThickness}"
+                                Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}">
+                          <Grid Margin="3">
+                            <Grid.RowDefinitions>
+                              <RowDefinition Height="16" />
+                              <RowDefinition Height="*" />
+                            </Grid.RowDefinitions>
+                            <Grid>
+                              <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*" />
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
+                              </Grid.ColumnDefinitions>
+                              <ContentPresenter Content="{Binding Model.RootDocument, RelativeSource={RelativeSource TemplatedParent}}"
+                                                ContentTemplate="{Binding Model.Root.Manager.DocumentTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                                ContentTemplateSelector="{Binding Model.Root.Manager.DocumentTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
 
 
-                                    <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Focusable="False"
-                                        Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
-                                        Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                        Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
-                                        CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
-                                        Grid.Column="2">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMaximize.png"/>
-                                    </Button>
+                              <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
+                                      CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
+                                      Grid.Column="2">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMaximize.png" >
+                                </Image>
+                              </Button>
 
-                                    <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Focusable="False"
-                                        Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                        Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                        Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
-                                        CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
-                                        Grid.Column="2">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinRestore.png"/>
-                                    </Button>
+                              <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
+                                      CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
+                                      Grid.Column="2">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinRestore.png" >
+                                </Image>
+                              </Button>
 
-                                    <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                            Focusable="False"
-                                            Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                            Command="{Binding Path=RootDocumentLayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                            ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}"
-                                            Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                            Grid.Column="3">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png"/>
-                                    </Button>
-                                </Grid>
-                                <ContentPresenter Content="{TemplateBinding Content}" Grid.Row="1"/>
+                              <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{Binding Path=RootDocumentLayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}"
+                                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                                      Grid.Column="3">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png" >
+                                </Image>
+                              </Button>
                             </Grid>
+                            <ContentPresenter Content="{TemplateBinding Content}"
+                                              Grid.Row="1" />
+                          </Grid>
                         </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="WindowState" Value="Maximized">
-                            <Setter Property="Padding" Value="3" TargetName="WindowBorder"/>
+                      </Grid>
+                      <ControlTemplate.Triggers>
+                        <Trigger Property="WindowState"
+                                 Value="Maximized">
+                          <Setter Property="Padding"
+                                  Value="3"
+                                  TargetName="WindowBorder" />
                         </Trigger>
-                        <DataTrigger Binding="{Binding Model.RootDocument.IsActive, RelativeSource={RelativeSource Self}}" Value="True">
-                              <Setter TargetName="WindowBorder" Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
+                        <DataTrigger Binding="{Binding Model.RootDocument.IsActive, RelativeSource={RelativeSource Self}}"
+                                     Value="True">
+                          <Setter TargetName="WindowBorder"
+                                  Property="BorderBrush"
+                                  Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                         </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                      </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style x:Key="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}" TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
-        <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"/>
-        <Setter Property="BorderThickness" Value="3"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
-            <Setter.Value>
-                <shell:WindowChrome
-                    ResizeBorderThickness="10"
-                    CaptionHeight="16"
-                    CornerRadius="3,3,3,3"
-                    GlassFrameThickness="0"
-                    ShowSystemMenu="False"/>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}">
-                            <Grid Margin="3">
-                                <Grid.RowDefinitions>
-                                    <RowDefinition Height="16"/>
-                                    <RowDefinition Height="*"/>
-                                </Grid.RowDefinitions>
-                                <Grid>
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="*"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                        <ColumnDefinition Width="Auto"/>
-                                    </Grid.ColumnDefinitions>
+              <Style x:Key="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}"
+                     TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
+                <Setter Property="Background"
+                        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
+                <Setter Property="BorderBrush"
+                        Value="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}" />
+                <Setter Property="BorderThickness"
+                        Value="3" />
+                <Setter Property="shell:WindowChrome.WindowChrome">
+                  <Setter.Value>
+                    <shell:WindowChrome ResizeBorderThickness="10"
+                                        CaptionHeight="16"
+                                        CornerRadius="3,3,3,3"
+                                        GlassFrameThickness="0"
+                                        ShowSystemMenu="False" />
+                  </Setter.Value>
+                </Setter>
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:LayoutAnchorableFloatingWindowControl}">
+                      <Grid>
+                        <Border x:Name="WindowBorder"
+                                BorderThickness="{TemplateBinding BorderThickness}"
+                                Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}">
+                          <Grid Margin="3">
+                            <Grid.RowDefinitions>
+                              <RowDefinition Height="16" />
+                              <RowDefinition Height="*" />
+                            </Grid.RowDefinitions>
+                            <Grid>
+                              <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*" />
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
+                              </Grid.ColumnDefinitions>
 
-                                    <Border
-                                        Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}">
-                                        <avalonDockControls:DropDownControlArea 
-                                            DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                            DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
-                                            <ContentPresenter Content="{Binding Model.SinglePane.SelectedContent, RelativeSource={RelativeSource TemplatedParent}}" 
-                                                  ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
-                                                  ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}"/>
-                                        </avalonDockControls:DropDownControlArea>
-                                    </Border>
+                              <Border Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}">
+                                <avalonDockControls:DropDownControlArea DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                                        DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}">
+                                  <ContentPresenter Content="{Binding Model.SinglePane.SelectedContent, RelativeSource={RelativeSource TemplatedParent}}"
+                                                    ContentTemplate="{Binding Model.Root.Manager.AnchorableTitleTemplate, RelativeSource={RelativeSource TemplatedParent}}"
+                                                    ContentTemplateSelector="{Binding Model.Root.Manager.AnchorableTitleTemplateSelector, RelativeSource={RelativeSource TemplatedParent}}" />
+                                </avalonDockControls:DropDownControlArea>
+                              </Border>
 
 
-                                    <avalonDockControls:DropDownButton
-                                        x:Name="SinglePaneContextMenu"
-                                        shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                        Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
-                                        Focusable="False"
-                                        Grid.Column="1"
-                                        DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
-                                        DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMenu.png"/>
-                                    </avalonDockControls:DropDownButton>
+                              <avalonDockControls:DropDownButton x:Name="SinglePaneContextMenu"
+                                                                 shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                                                 Visibility="{Binding Path=Model.IsSinglePane, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                                                                 Style="{StaticResource {x:Static ToolBar.ToggleButtonStyleKey}}"
+                                                                 Focusable="False"
+                                                                 Grid.Column="1"
+                                                                 DropDownContextMenu="{Binding Model.Root.Manager.AnchorableContextMenu, RelativeSource={RelativeSource TemplatedParent}}"
+                                                                 DropDownContextMenuDataContext="{Binding Path=SingleContentLayoutItem, RelativeSource={RelativeSource TemplatedParent}}"
+                                                                 ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_CxMenu_Hint}">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMenu.png" >
+                                </Image>
+                              </avalonDockControls:DropDownButton>
 
-                                    <Button 
-                                        shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Focusable="False"
-                                        Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
-                                        Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                        Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
-                                        CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
-                                        Grid.Column="2">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMaximize.png"/>
-                                    </Button>
+                              <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource InverseBoolToVisibilityConverter}}"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{x:Static shell:SystemCommands.MaximizeWindowCommand}"
+                                      CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Window_Maximize}"
+                                      Grid.Column="2">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinMaximize.png" >
+                                </Image>
+                              </Button>
 
-                                    <Button 
-                                        shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Focusable="False"
-                                        Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
-                                        Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                        Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
-                                        CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
-                                        Grid.Column="2">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinRestore.png"/>
-                                    </Button>
+                              <Button shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Visibility="{Binding IsMaximized, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BoolToVisibilityConverter}}"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{x:Static shell:SystemCommands.RestoreWindowCommand}"
+                                      CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Window_Restore}"
+                                      Grid.Column="2">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinRestore.png" >
+                                </Image>
+                              </Button>
 
-                                    <Button 
-                                        shell:WindowChrome.IsHitTestVisibleInChrome="True"
-                                        Focusable="False"
-                                        Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
-                                        Command="{Binding HideWindowCommand, RelativeSource={RelativeSource TemplatedParent}}"
-                                        ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}"
-                                        Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
-                                        Grid.Column="3">
-                                        <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png"/>
-                                    </Button>
-                                </Grid>
-                                <ContentPresenter
-                                    Content="{TemplateBinding Content}" Grid.Row="1"/>
+                              <Button x:Name="CloseButton"
+                                      shell:WindowChrome.IsHitTestVisibleInChrome="True"
+                                      Focusable="False"
+                                      Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"
+                                      Command="{Binding HideWindowCommand, RelativeSource={RelativeSource TemplatedParent}}"
+                                      ToolTip="{x:Static avalonDockProperties:Resources.Anchorable_BtnClose_Hint}"
+                                      Visibility="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}"
+                                      Grid.Column="3">
+                                <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png" >
+                                </Image>
+                              </Button>
                             </Grid>
+                            <ContentPresenter Content="{TemplateBinding Content}"
+                                              Grid.Row="1" />
+                          </Grid>
                         </Border>
-                    </Grid>
-                    <ControlTemplate.Triggers>
-                        <Trigger Property="WindowState" Value="Maximized">
-                            <Setter Property="Padding" Value="3" TargetName="WindowBorder"/>
+                      </Grid>
+                      <ControlTemplate.Triggers>
+                        <Trigger Property="WindowState"
+                                 Value="Maximized">
+                          <Setter Property="Padding"
+                                  Value="3"
+                                  TargetName="WindowBorder" />
                         </Trigger>
-                           <DataTrigger Binding="{Binding Model.SinglePane.SelectedContent.IsActive, RelativeSource={RelativeSource Self}}" Value="True">
-                              <Setter TargetName="WindowBorder" Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
+                        <DataTrigger Binding="{Binding Model.SinglePane.SelectedContent.IsActive, RelativeSource={RelativeSource Self}}"
+                                     Value="True">
+                          <Setter TargetName="WindowBorder"
+                                  Property="BorderBrush"
+                                  Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                         </DataTrigger>
-                    </ControlTemplate.Triggers>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                        <DataTrigger Binding="{Binding Model.SinglePane.SelectedContent.CanClose, RelativeSource={RelativeSource Mode=Self}}"
+                                     Value="True">
+                          <Setter Property="Command"
+                                  TargetName="CloseButton"
+                                  Value="{Binding CloseWindowCommand, RelativeSource={RelativeSource TemplatedParent}}" />
+                          <Setter Property="ToolTip"
+                                  TargetName="CloseButton"
+                                  Value="{x:Static avalonDockProperties:Resources.Document_Close}" />
 
-    <Style x:Key="{x:Type avalonDockControls:LayoutAutoHideWindowControl}" TargetType="{x:Type avalonDockControls:LayoutAutoHideWindowControl}">
-        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
-    </Style>
+                        </DataTrigger>
+                      </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
+              </Style>
 
-    <Style x:Key="{x:Type avalonDockControls:NavigatorWindow}" TargetType="{x:Type avalonDockControls:NavigatorWindow}">
-        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
-        <Setter Property="SizeToContent" Value="WidthAndHeight"/>
-        <Setter Property="ResizeMode" Value="NoResize"/>
-        <Setter Property="shell:WindowChrome.WindowChrome">
-            <Setter.Value>
-                <shell:WindowChrome
-                    ResizeBorderThickness="10"
-                    CaptionHeight="16"
-                    CornerRadius="3,3,3,3"
-                    GlassFrameThickness="4"/>
-            </Setter.Value>
-        </Setter>
-        <Setter Property="Template">
-            <Setter.Value>
-                <ControlTemplate TargetType="{x:Type avalonDockControls:NavigatorWindow}">
-                    <Grid>
-                        <Border x:Name="WindowBorder" BorderThickness="3"
+              <Style x:Key="{x:Type avalonDockControls:LayoutAutoHideWindowControl}"
+                     TargetType="{x:Type avalonDockControls:LayoutAutoHideWindowControl}">
+                <Setter Property="Background"
+                        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
+              </Style>
+
+              <Style x:Key="{x:Type avalonDockControls:NavigatorWindow}"
+                     TargetType="{x:Type avalonDockControls:NavigatorWindow}">
+                <Setter Property="Background"
+                        Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
+                <Setter Property="SizeToContent"
+                        Value="WidthAndHeight" />
+                <Setter Property="ResizeMode"
+                        Value="NoResize" />
+                <Setter Property="shell:WindowChrome.WindowChrome">
+                  <Setter.Value>
+                    <shell:WindowChrome ResizeBorderThickness="10"
+                                        CaptionHeight="16"
+                                        CornerRadius="3,3,3,3"
+                                        GlassFrameThickness="4" />
+                  </Setter.Value>
+                </Setter>
+                <Setter Property="Template">
+                  <Setter.Value>
+                    <ControlTemplate TargetType="{x:Type avalonDockControls:NavigatorWindow}">
+                      <Grid>
+                        <Border x:Name="WindowBorder"
+                                BorderThickness="3"
                                 Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"
                                 BorderBrush="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}">
-                            <Grid Margin="5">
+                          <Grid Margin="5">
+                            <Grid.RowDefinitions>
+                              <RowDefinition Height="54" />
+                              <RowDefinition Height="*" />
+                              <RowDefinition Height="42" />
+                            </Grid.RowDefinitions>
+
+                            <Grid>
+                              <Grid.RowDefinitions>
+                                <RowDefinition />
+                                <RowDefinition />
+                              </Grid.RowDefinitions>
+                              <Grid>
+                                <Grid.ColumnDefinitions>
+                                  <ColumnDefinition Width="Auto" />
+                                  <ColumnDefinition />
+                                </Grid.ColumnDefinitions>
+                                <Image Source="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                                       Stretch="None" >
+                                </Image>
+                                <TextBlock Text="{Binding SelectedDocument.LayoutElement.Title}"
+                                           TextTrimming="CharacterEllipsis"
+                                           Grid.Column="1"
+                                           VerticalAlignment="Center"
+                                           FontWeight="Bold"
+                                           Margin="4,0,0,0" >
+                                </TextBlock>
+                              </Grid>
+                              <TextBlock Text="{Binding SelectedDocument.LayoutElement.Description}"
+                                         TextTrimming="CharacterEllipsis"
+                                         VerticalAlignment="Center" >
+                              </TextBlock>
+                            </Grid>
+
+                            <Grid Grid.Row="1">
+                              <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition />
+                              </Grid.ColumnDefinitions>
+                              <Grid Margin="5">
                                 <Grid.RowDefinitions>
-                                    <RowDefinition Height="54"/>
-                                    <RowDefinition Height="*"/>
-                                    <RowDefinition Height="42"/>
+                                  <RowDefinition Height="Auto" />
+                                  <RowDefinition />
                                 </Grid.RowDefinitions>
-
-                                <Grid>
-                                    <Grid.RowDefinitions>
-                                        <RowDefinition/>
-                                        <RowDefinition/>
-                                    </Grid.RowDefinitions>
-                                    <Grid>
+                                <TextBlock Text="Active Tool Windows"
+                                           FontWeight="Bold"
+                                           Margin="0,3,0,4" >
+                                </TextBlock>
+                                <ListBox Grid.Row="1"
+                                         ItemsSource="{Binding Anchorables}"
+                                         SelectedItem="{Binding SelectedAnchorable, Mode=TwoWay}"
+                                         Background="Transparent"
+                                         BorderThickness="0"
+                                         MaxHeight="400"
+                                         FocusVisualStyle="{x:Null}">
+                                  <ListBox.ItemContainerStyle>
+                                    <Style TargetType="ListBoxItem">
+                                      <Setter Property="Cursor"
+                                              Value="Hand" />
+                                      <Style.Triggers>
+                                        <Trigger Property="IsMouseOver"
+                                                 Value="True">
+                                          <Setter Property="Background"
+                                                  Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+                                          <Setter Property="TextElement.Foreground"
+                                                  Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
+                                        </Trigger>
+                                      </Style.Triggers>
+                                    </Style>
+                                  </ListBox.ItemContainerStyle>
+                                  <ListBox.ItemTemplate>
+                                    <DataTemplate>
+                                      <Grid>
                                         <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="Auto"/>
-                                            <ColumnDefinition/>
+                                          <ColumnDefinition Width="Auto" />
+                                          <ColumnDefinition />
                                         </Grid.ColumnDefinitions>
-                                        <Image Source="{Binding SelectedDocument.LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="None"/>
-                                        <TextBlock Text="{Binding SelectedDocument.LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" VerticalAlignment="Center" FontWeight="Bold" Margin="4,0,0,0"/>
-                                    </Grid>
-                                    <TextBlock Text="{Binding SelectedDocument.LayoutElement.Description}" TextTrimming="CharacterEllipsis" VerticalAlignment="Center"/>
-                                </Grid>
-
-                                <Grid Grid.Row="1">
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="Auto"/>
-                                        <ColumnDefinition/>
-                                    </Grid.ColumnDefinitions>
-                                    <Grid Margin="5">
-                                        <Grid.RowDefinitions>
-                                            <RowDefinition Height="Auto"/>
-                                            <RowDefinition/>
-                                        </Grid.RowDefinitions>
-                                        <TextBlock Text="Active Tool Windows" FontWeight="Bold" Margin="0,3,0,4"/>
-                                        <ListBox Grid.Row="1" ItemsSource="{Binding Anchorables}" SelectedItem="{Binding SelectedAnchorable, Mode=TwoWay}" Background="Transparent" BorderThickness="0" MaxHeight="400" FocusVisualStyle="{x:Null}">
-                                            <ListBox.ItemContainerStyle>
-                                                <Style TargetType="ListBoxItem">
-                                                    <Setter Property="Cursor" Value="Hand"/>
-                                                    <Style.Triggers>
-                                                        <Trigger Property="IsMouseOver" Value="True">
-                                                            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
-                                                            <Setter Property="TextElement.Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
-                                                        </Trigger>
-                                                    </Style.Triggers>
-                                                </Style>
-                                            </ListBox.ItemContainerStyle>
-                                            <ListBox.ItemTemplate>
-                                                <DataTemplate>
-                                                    <Grid>
-                                                        <Grid.ColumnDefinitions>
-                                                            <ColumnDefinition Width="Auto"/>
-                                                            <ColumnDefinition/>
-                                                        </Grid.ColumnDefinitions>
-                                                        <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="None"/>
-                                                        <TextBlock Text="{Binding LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" Margin="4,2,0,2"/>
-                                                    </Grid>
-                                                </DataTemplate>
-                                            </ListBox.ItemTemplate>
-                                        </ListBox>
-                                    </Grid>
-                                    <Grid Grid.Column="1" Margin="5">
-                                        <Grid.RowDefinitions>
-                                            <RowDefinition Height="Auto"/>
-                                            <RowDefinition/>
-                                        </Grid.RowDefinitions>
-                                        <TextBlock Text="Active Files" FontWeight="Bold" Margin="0,3,0,4"/>
-                                        <ListBox Grid.Row="1" ItemsSource="{Binding Documents}" SelectedItem="{Binding SelectedDocument, Mode=TwoWay}" Background="Transparent" BorderThickness="0" MaxHeight="400" FocusVisualStyle="{x:Null}">
-                                            <ListBox.ItemContainerStyle>
-                                                <Style TargetType="ListBoxItem">
-                                                    <Setter Property="Cursor" Value="Hand"/>
-                                                    <Style.Triggers>
-                                                        <Trigger Property="IsMouseOver" Value="True">
-                                                            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
-                                                            <Setter Property="TextElement.Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
-                                                        </Trigger>     
-                                                    </Style.Triggers>
-                                                </Style>
-                                            </ListBox.ItemContainerStyle>
-                                            <ListBox.ItemTemplate>
-                                                <DataTemplate>
-                                                    <Grid>
-                                                        <Grid.ColumnDefinitions>
-                                                            <ColumnDefinition Width="Auto"/>
-                                                            <ColumnDefinition/>
-                                                        </Grid.ColumnDefinitions>
-                                                        <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}" Stretch="None"/>
-                                                        <TextBlock Text="{Binding LayoutElement.Title}" TextTrimming="CharacterEllipsis" Grid.Column="1" Margin="4,2,0,2"/>
-                                                    </Grid>
-                                                </DataTemplate>
-                                            </ListBox.ItemTemplate>
-                                            <ListBox.ItemsPanel>
-                                                <ItemsPanelTemplate>
-                                                    <WrapPanel Orientation="Vertical"/>
-                                                </ItemsPanelTemplate>
-                                            </ListBox.ItemsPanel>
-                                        </ListBox>
-                                    </Grid>
-                                </Grid>
+                                        <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                                               Stretch="None">
+                                        </Image>
+                                        <TextBlock Text="{Binding LayoutElement.Title}"
+                                                   TextTrimming="CharacterEllipsis"
+                                                   Grid.Column="1"
+                                                   Margin="4,2,0,2">
+                                        </TextBlock>
+                                      </Grid>
+                                    </DataTemplate>
+                                  </ListBox.ItemTemplate>
+                                </ListBox>
+                              </Grid>
+                              <Grid Grid.Column="1"
+                                    Margin="5">
+                                <Grid.RowDefinitions>
+                                  <RowDefinition Height="Auto" />
+                                  <RowDefinition />
+                                </Grid.RowDefinitions>
+                                <TextBlock Text="Active Files"
+                                           FontWeight="Bold"
+                                           Margin="0,3,0,4">
+                                </TextBlock>
+                                <ListBox Grid.Row="1"
+                                         ItemsSource="{Binding Documents}"
+                                         SelectedItem="{Binding SelectedDocument, Mode=TwoWay}"
+                                         Background="Transparent"
+                                         BorderThickness="0"
+                                         MaxHeight="400"
+                                         FocusVisualStyle="{x:Null}">
+                                  <ListBox.ItemContainerStyle>
+                                    <Style TargetType="ListBoxItem">
+                                      <Setter Property="Cursor"
+                                              Value="Hand" />
+                                      <Style.Triggers>
+                                        <Trigger Property="IsMouseOver"
+                                                 Value="True">
+                                          <Setter Property="Background"
+                                                  Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
+                                          <Setter Property="TextElement.Foreground"
+                                                  Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
+                                        </Trigger>
+                                      </Style.Triggers>
+                                    </Style>
+                                  </ListBox.ItemContainerStyle>
+                                  <ListBox.ItemTemplate>
+                                    <DataTemplate>
+                                      <Grid>
+                                        <Grid.ColumnDefinitions>
+                                          <ColumnDefinition Width="Auto" />
+                                          <ColumnDefinition />
+                                        </Grid.ColumnDefinitions>
+                                        <Image Source="{Binding LayoutElement.IconSource, Converter={StaticResource NullToDoNothingConverter}}"
+                                               Stretch="None">
+                                        </Image>
+                                        <TextBlock Text="{Binding LayoutElement.Title}"
+                                                   TextTrimming="CharacterEllipsis"
+                                                   Grid.Column="1"
+                                                   Margin="4,2,0,2">
+                                        </TextBlock>
+                                      </Grid>
+                                    </DataTemplate>
+                                  </ListBox.ItemTemplate>
+                                  <ListBox.ItemsPanel>
+                                    <ItemsPanelTemplate>
+                                      <WrapPanel Orientation="Vertical" />
+                                    </ItemsPanelTemplate>
+                                  </ListBox.ItemsPanel>
+                                </ListBox>
+                              </Grid>
+                            </Grid>
 
-                                <Grid Grid.Row="2">
-                                    <TextBlock Text="{Binding SelectedDocument.LayoutElement.ToolTip}" VerticalAlignment="Center"/>
-                                </Grid>
+                            <Grid Grid.Row="2">
+                              <TextBlock Text="{Binding SelectedDocument.LayoutElement.ToolTip}"
+                                         VerticalAlignment="Center">
+                              </TextBlock>
                             </Grid>
+                          </Grid>
                         </Border>
-                    </Grid>
-                </ControlTemplate>
-            </Setter.Value>
-        </Setter>
-    </Style>
+                      </Grid>
+                    </ControlTemplate>
+                  </Setter.Value>
+                </Setter>
 
-    <!--
-      Re-styling this in AvalonDock since the menu on the drop-down button for more documents is otherwise black
-      BugFix for Issue http://avalondock.codeplex.com/workitem/15743
-      -->
-    <Style TargetType="{x:Type avalonDockControls:ContextMenuEx}" BasedOn="{StaticResource {x:Type ContextMenu}}" />
+              </Style>
 
 </ResourceDictionary>
diff --git a/source/Components/Xceed.Wpf.AvalonDock/Xceed.Wpf.AvalonDock.csproj b/source/Components/Xceed.Wpf.AvalonDock/Xceed.Wpf.AvalonDock.csproj
index 28bea22e..58f3f0ba 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Xceed.Wpf.AvalonDock.csproj
+++ b/source/Components/Xceed.Wpf.AvalonDock/Xceed.Wpf.AvalonDock.csproj
@@ -42,42 +42,6 @@
     <AssemblyOriginatorKeyFile>
     </AssemblyOriginatorKeyFile>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <OutputPath>bin\x86\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Data" />
@@ -136,6 +100,7 @@
     <Compile Include="Controls\Shell\WindowChrome.cs" />
     <Compile Include="Controls\Shell\WindowChromeWorker.cs" />
     <Compile Include="Converters\ActivateCommandLayoutItemFromLayoutModelConverter.cs" />
+    <Compile Include="Converters\AnchorableContextMenuHideVisibilityConverter.cs" />
     <Compile Include="Converters\AutoHideCommandLayoutItemFromLayoutModelConverter.cs" />
     <Compile Include="Converters\HideCommandLayoutItemFromLayoutModelConverter.cs" />
     <Compile Include="Converters\InverseBoolToVisibilityConverter.cs" />