[WPA81] Design time binding not working with controls inside DataTemplate

[ebussa]

I have a Windows.UI.Xaml.Controls.Page with the following attributes:

xmlns:d="http://schemas.microsoft.com/expression/blend/2008 
xmlns:designData="using:Screens.DesignData"
xmlns:cm="using:Caliburn.Micro"
d:DataContext="{d:DesignInstance Type=designData:ViewModel, IsDesignTimeCreatable=True}"
cm:Bind.AtDesignTime="True"

This Xaml does not properly bind the Items property of the DesignInstance to the ListView.ItemsSource:

<HubSection>
    <DataTemplate>
        <StackPanel cm:Bind.Model="{Binding}">
            <ListView x:Name="Items"/>
        </StackPanel>
    </DataTemplate>
</HubSection>

However, if I change my syntax to this the binding works:

<ListView ItemsSource="{Binding Items}"

[tibel]

Is this a duplicate of #2? Try the tip from @nigel-sampson in the linked issue.

[ebussa]

I made the change and am now calling base.Initialize() in the App constructor. On my page, I removed the {Binding Items} code from the ListView and replaced it with x:Name="Items", saved and recompiled. When I switched from Xaml to Design view, I am still not seeing the sample data from my DesignInstance.

If I swap out x:Name="Items" and replace it with {Binding Items}, the sample data renders.

fyi, I'm using CM beta2, Windows 8.1 w/ Universal Project. The page is in the Windows Phone 8.1 project.

[nigel-sampson]

I suspect this could be an issue more with the Hub and it's use of DataTemplates, will look into it.

[nigel-sampson]

The problem is definitely the data templates and the conventions not being applied. While Bind.Model helps at run time it doesn't help at design time.

<HubSection>
  <DataTemplate>
    <StackPanel caliburn:Bind.Model="{Binding}" caliburn:Bind.AtDesignTime="True">
      <ListView x:Name="Items"/>
    </StackPanel>
  </DataTemplate>
</HubSection>

Should gives me design time inside the data template as well.