Using AvalonDock with Caliburn Micro - wpf

Question

I'm trying to use AvalonDock 2.8 together with Caliburn Micro 2.0.2. Here is what I currently have:
MainView.xaml:
<Window x:Class="MainView"
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:cal="http://www.caliburnproject.org"
xmlns:xcad="http://schemas.xceed.com/wpf/xaml/avalondock"
xmlns:local="clr-namespace:CaliburnMicroAndAvalonDock"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="40"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Button x:Name="Open" Content="Open new document" Margin="5"/>
<xcad:DockingManager Grid.Row="1" DocumentsSource="{Binding Items}">
<xcad:DockingManager.LayoutItemContainerStyle>
<Style TargetType="{x:Type xcad:LayoutItem}">
<Setter Property="Title" Value="{Binding Model.DisplayName}" />
</Style>
</xcad:DockingManager.LayoutItemContainerStyle>
<xcad:DockingManager.LayoutItemTemplateSelector>
<local:LayoutItemTemplateSelector>
<local:LayoutItemTemplateSelector.Template>
<DataTemplate>
<ContentControl cal:View.Model="{Binding .}" IsTabStop="False"/>
</DataTemplate>
</local:LayoutItemTemplateSelector.Template>
</local:LayoutItemTemplateSelector>
</xcad:DockingManager.LayoutItemTemplateSelector>
<xcad:LayoutRoot>
<xcad:LayoutPanel Orientation="Horizontal">
<xcad:LayoutDocumentPane/>
</xcad:LayoutPanel>
</xcad:LayoutRoot>
</xcad:DockingManager>
</Grid>
</Window>
MainViewModel.vb:
Imports Caliburn.Micro
Public Class MainViewModel
Inherits Conductor(Of Screen).Collection.OneActive
Private m_Index As Int32 = 0
Sub Open()
ActivateItem(New DocumentViewModel With {.DisplayName = $"Document {m_Index}"})
m_Index += 1
End Sub
End Class
Document.xaml:
<UserControl x:Class="DocumentView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:CaliburnMicroAndAvalonDock"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<TextBlock Text="{Binding DisplayName}"/>
</Grid>
</UserControl>
DocumentViewModel.vb:
Imports Caliburn.Micro
Public Class DocumentViewModel
Inherits Screen
End Class
LayoutItemTemplateSelector.vb:
Public Class LayoutItemTemplateSelector
Inherits DataTemplateSelector
Public Property Template As DataTemplate
Public Overrides Function SelectTemplate(item As Object, container As DependencyObject) As DataTemplate
Return Me.Template
End Function
End Class
Partially it works, problem is that view fails to load with Cannot find view for System.Windows.Controls.ContentPresenter error:
I'm quite new to both Caliburn Micro and AvalonDock, so my code is heavily based on examples I found online (e.g. this). But those samples are quite old and it doesn't work with current version of AvalonDock (2.8.15465.16500). If I switch to older one (2.0.2000), it works fine.

Answer 1

I managed to solve this problem with help of this answer and this explanation.
Here is updated code of LayoutItemTemplateSelector.vb:
Public Class LayoutItemTemplateSelector
Inherits DataTemplateSelector
Public Property Template As DataTemplate
Public Overrides Function SelectTemplate(item As Object, container As DependencyObject) As DataTemplate
If TypeOf item Is DocumentViewModel Then
Return Me.Template
Else
Return MyBase.SelectTemplate(item, container)
End If
End Function
End Class