diff --git a/MdXaml.sln b/MdXaml.sln
index 4f74420..b847c9a 100644
--- a/MdXaml.sln
+++ b/MdXaml.sln
@@ -34,7 +34,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MdXaml.Plugins", "MdXaml.Pl
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MdXaml.AnimatedGif", "MdXaml.AnimatedGif\MdXaml.AnimatedGif.csproj", "{A7666AD6-CB44-4399-AC61-05DE80D65F9D}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MdXaml.Full", "MdXaml.Full\MdXaml.Full.csproj", "{0ABF174B-B7EA-4225-BB56-5A6E8C011CFB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MdXaml.Full", "MdXaml.Full\MdXaml.Full.csproj", "{0ABF174B-B7EA-4225-BB56-5A6E8C011CFB}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CheckMemoryLeak", "samples\CheckMemoryLeak\CheckMemoryLeak.csproj", "{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -90,6 +92,10 @@ Global
 		{0ABF174B-B7EA-4225-BB56-5A6E8C011CFB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0ABF174B-B7EA-4225-BB56-5A6E8C011CFB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0ABF174B-B7EA-4225-BB56-5A6E8C011CFB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -101,6 +107,7 @@ Global
 		{C539C7B4-BBF2-4AC2-A732-0C47E125CCD2} = {435867FA-EE25-4708-9BBA-8509ABC7E389}
 		{C45A1400-B4E9-4638-BF1F-4BB38CEC5E93} = {09BEAB2A-F47E-4D2B-AE81-8DC1BBB52638}
 		{CEF2B49F-90AF-4B65-AA0C-A12AB1C0A18F} = {09BEAB2A-F47E-4D2B-AE81-8DC1BBB52638}
+		{CC0EBCF6-0EE9-4873-BB6F-6A9F4CF84B79} = {435867FA-EE25-4708-9BBA-8509ABC7E389}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {23DF7019-3B25-4B82-8955-25F1DDD72D84}
diff --git a/samples/CheckMemoryLeak/App.xaml b/samples/CheckMemoryLeak/App.xaml
new file mode 100644
index 0000000..12f8eaf
--- /dev/null
+++ b/samples/CheckMemoryLeak/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="CheckMemoryLeak.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:CheckMemoryLeak"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
diff --git a/samples/CheckMemoryLeak/App.xaml.cs b/samples/CheckMemoryLeak/App.xaml.cs
new file mode 100644
index 0000000..07d3145
--- /dev/null
+++ b/samples/CheckMemoryLeak/App.xaml.cs
@@ -0,0 +1,14 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace CheckMemoryLeak
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+
+}
diff --git a/samples/CheckMemoryLeak/AssemblyInfo.cs b/samples/CheckMemoryLeak/AssemblyInfo.cs
new file mode 100644
index 0000000..b0ec827
--- /dev/null
+++ b/samples/CheckMemoryLeak/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]
diff --git a/samples/CheckMemoryLeak/CheckMemoryLeak.csproj b/samples/CheckMemoryLeak/CheckMemoryLeak.csproj
new file mode 100644
index 0000000..4f583ed
--- /dev/null
+++ b/samples/CheckMemoryLeak/CheckMemoryLeak.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFrameworks>$(SampleTargetFrameworks)</TargetFrameworks>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+    <IsPackable>False</IsPackable>
+    <LangVersion>9</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\MdXaml.Full\MdXaml.Full.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/samples/CheckMemoryLeak/MainWindow.xaml b/samples/CheckMemoryLeak/MainWindow.xaml
new file mode 100644
index 0000000..c4c199d
--- /dev/null
+++ b/samples/CheckMemoryLeak/MainWindow.xaml
@@ -0,0 +1,52 @@
+<Window x:Class="CheckMemoryLeak.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CheckMemoryLeak"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="450" Width="800">
+
+    <Window.DataContext>
+        <local:MainWindowViewModel/>
+    </Window.DataContext>
+
+    <DockPanel LastChildFill="True">
+        <DockPanel LastChildFill="True">
+            <StackPanel DockPanel.Dock="Top" Orientation="Horizontal">
+                <Button Content="Add Text" Command="{Binding AddTextCommand}"/>
+                <Button Content="Add Resource" Margin="10,0,0,0" Command="{Binding AddResourceCommand}"/>
+            </StackPanel>
+
+            <Button DockPanel.Dock="Bottom" Content="Run" Click="Button_Click"/>
+
+            <ListBox  ItemsSource="{Binding Contents}">
+                <ListBox.ItemTemplate>
+                    <DataTemplate >
+                        <StackPanel Orientation="Horizontal">
+                            <Label Width="90">
+                                <Label.Style>
+                                    <Style TargetType="Label">
+                                        <Style.Triggers>
+                                            <DataTrigger Binding="{Binding ContentType}" Value="Resource">
+                                                <Setter Property="Content" Value="Resource"/>
+                                            </DataTrigger>
+                                            <DataTrigger Binding="{Binding ContentType}" Value="Text">
+                                                <Setter Property="Content" Value="Text"/>
+                                            </DataTrigger>
+                                        </Style.Triggers>
+                                    </Style>
+                                </Label.Style>
+                            </Label>
+                            <TextBox Text="{Binding Text}" HorizontalAlignment="Stretch" Width="200"/>
+                        </StackPanel>
+                    </DataTemplate>
+                </ListBox.ItemTemplate>
+            </ListBox>
+        </DockPanel>
+
+        <DockPanel LastChildFill="True" x:Name="ViewPanel">
+
+        </DockPanel>
+    </DockPanel>
+</Window>
diff --git a/samples/CheckMemoryLeak/MainWindow.xaml.cs b/samples/CheckMemoryLeak/MainWindow.xaml.cs
new file mode 100644
index 0000000..07d1481
--- /dev/null
+++ b/samples/CheckMemoryLeak/MainWindow.xaml.cs
@@ -0,0 +1,51 @@
+using MdXaml.Full;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace CheckMemoryLeak
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+
+        private async void Button_Click(object sender, RoutedEventArgs e)
+        {
+            var vm = (MainWindowViewModel)DataContext;
+            foreach (var content in vm.Contents)
+            {
+                var viewer = new MarkdownScrollViewer();
+
+                if (content.ContentType == ContentType.Resource)
+                {
+                    viewer.Source = new Uri(content.Text);
+                }
+                if (content.ContentType == ContentType.Text)
+                {
+                    viewer.Markdown = content.Text;
+                }
+
+                ViewPanel.Children.Add(viewer);
+
+                while (!viewer.IsLoaded)
+                    await Task.Delay(1000);
+
+                await Task.Delay(1000);
+
+                ViewPanel.Children.Clear();
+            }
+
+            foreach (var i in Enumerable.Range(0, 10)) {
+                GC.Collect();
+                await Task.Delay(1000);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/CheckMemoryLeak/MainWindowViewModel.cs b/samples/CheckMemoryLeak/MainWindowViewModel.cs
new file mode 100644
index 0000000..07a8143
--- /dev/null
+++ b/samples/CheckMemoryLeak/MainWindowViewModel.cs
@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Data;
+using System.Net.Mime;
+using System.Text;
+using System.Windows.Input;
+
+namespace CheckMemoryLeak
+{
+    internal class MainWindowViewModel
+    {
+        public ICommand AddTextCommand { get; }
+        public ICommand AddResourceCommand { get; }
+
+        public ObservableCollection<Content> Contents { get; }
+        public MainWindowViewModel()
+        {
+            Contents = new();
+            AddTextCommand = new DelegateCommand(AddText);
+            AddResourceCommand = new DelegateCommand(AddResource);
+
+            Contents.Add(new Content(ContentType.Resource) { Text = "https://raw.githubusercontent.com/whistyun/MdXaml/master/samples/MdXaml.Demo/MainWindow.md#note" });
+            Contents.Add(new Content(ContentType.Resource) { Text = @"file:///D:\MdXaml\samples\MdXaml.Demo\MainWindow.md#note" });
+            Contents.Add(new Content(ContentType.Text) { Text = @"[text](file:///D:\MdXaml\samples\MdXaml.Demo\MainWindow.md#note)" });
+        }
+
+        public void AddText()
+        {
+            Contents.Add(new Content(ContentType.Text));
+        }
+        public void AddResource()
+        {
+            Contents.Add(new Content(ContentType.Resource));
+        }
+    }
+
+    public class DelegateCommand : ICommand
+    {
+        private Action _action;
+        public event EventHandler? CanExecuteChanged;
+
+        public DelegateCommand(Action act)
+        {
+            _action = act;
+        }
+
+        public bool CanExecute(object? parameter)
+        {
+            return true;
+        }
+
+        public void Execute(object? parameter)
+        {
+            _action();
+        }
+    }
+
+    public class Content
+    {
+        public ContentType ContentType { get; }
+        public string Text { get; set; }
+
+        public Content(ContentType type)
+        {
+            ContentType = type;
+        }
+    }
+
+    public enum ContentType
+    {
+        Resource,
+        Text
+    }
+}