Errors when trying to bind RadTreeView to CollectionViewSource with a ViewModel source

[Mariano]

I´m working on an app with the following architecture, I´m using CSLA .NET 4, BXF for plumbing to MVVM and WPF.

Files code follow:

TreeviewView.xaml
------------------------

<UserControl x:Class="MyAppDesktopWPF.TreeviewView"       

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:Telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"

        xmlns:csla="clr-namespace:Csla.Data;assembly=Csla"

        mc:Ignorable="d"

        d:DesignHeight="300" d:DesignWidth="400"

Loaded="UserControl_Loaded"

xmlns:my="clr-namespace:MyAppDesktopWPF.ViewModels">




<UserControl.Resources>


<CollectionViewSource x:Key="TreeAreaDS" Source="{Binding

Source={StaticResource TrashViewModel},

Path=Model}"></CollectionViewSource>


<HierarchicalDataTemplate x:Key="ToolsDataTemplate"ItemsSource="{Binding Tools}" >

            <TextBlock Text="{Binding Path=Name}" FontWeight="Bold"/>
</HierarchicalDataTemplate>




        <HierarchicalDataTemplate x:Key="SegmentsDataTemplate"

ItemsSource="{Binding Segments}" ItemTemplate="{StaticResource ToolsDataTemplate}" >

            <TextBlock Text="{Binding Path=Name}" FontWeight="Bold"/>

        </HierarchicalDataTemplate>




        <HierarchicalDataTemplate  x:Key="SectionsDataTemplate" 

ItemsSource="{Binding Sections}" ItemTemplate="{StaticResource

SegmentsDataTemplate}">

            <TextBlock Text="{Binding Path=Name}"

FontWeight="Bold"/>

        </HierarchicalDataTemplate>




    </UserControl.Resources>




<Telerik:RadTreeView ItemsSource="{Binding Source={StaticResource

TreeAreaDS}}" ItemTemplate="{StaticResource SectionsDataTemplate}"

Name="PlanTreeView" Height="250" HorizontalAlignment="Left" Margin="3"

VerticalAlignment="Center" Width="150" />

TrashViewModel.cs
------------------------

public class TrashViewModel : ViewModel<MyAppBO.MyClass>

    {

        public TrashViewModel()

        {

            Bxf.Shell.Instance.ShowStatus(new Bxf.Status { Text =

"Getting Plan", IsBusy = true });

            ManageObjectLifetime = true;

            // cascade model changed events through VM to View

            Model.PropertyChanged += (o, e) =>

OnPropertyChanged(e.PropertyName);

        }



        public TrashViewModel(MyClass classInstance)

        {

            Bxf.Shell.Instance.ShowStatus(new Bxf.Status { Text =

"Getting Plan", IsBusy = true });

            ManageObjectLifetime = true;

            Model = classInstance;




            // cascade model changed events through VM to View<br>

            Model.PropertyChanged += (o, e) =>

OnPropertyChanged(e.PropertyName);

        }

With this version of the code I get an exception that says:
"'Provide value on 'System.Windows.Markup.StaticResourceHolder' threw an exception.' Line number '108' and line position '50'."
---------------------
However if I change the code for the collectionviewsource to:

  <CollectionViewSource x:Key="TreeAreaDS"
Source="TrashViewModel">
</CollectionViewSource>

I get this:
Locating source for 'c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs'. Checksum: MD5 {d5 92 43 67 7f ad 5a 42 93 7e b9 53 ee b2 ef 99}
The file 'c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs' does not exist.
Looking in script documents for 'c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs'...
Looking in the projects for 'c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs'.
The file was not found in a project.
Looking in directory 'C:\Program Files\Microsoft Visual Studio 10.0\VC\crt\src\'...
Looking in directory 'C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\src\mfc\'...
Looking in directory 'C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\src\atl\'...
Looking in directory 'C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\include\'...
The debug source files settings for the active solution indicate that the debugger will not ask the user to find the file: c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs.
The debugger could not locate the source file 'c:\Builds\WPF_Scrum\Release_WPF_2010_Q2_SP2\Sources\Development\Core\Controls\Animation\AnimationManager.cs'.

???
Any ideas?
I could try setting up a demo project, but I´d expose too much of the BL of the app and my employer wouldn´t like that..

[Alex Fidanov]

Hi Mariano,

I tested this but I was not able to reproduce this exception. Please find the attached project which I used to reproduce this issue based on the code you have provided. If possible, please modify it so that the issue becomes reproducible and send it back so that we can look into it.

All the best,
Alex Fidanov
the Telerik team