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RadTreeView edit not comitting

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TreeView

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Owen asked on 15 Feb 2010, 01:51 PM

    
                public class DataSource : DependencyObject 
        
                { 
        
                    public List<DataSource> Children { get; set; } 
        
                    public string Name { get; set; } 
        
                    public DataSource() 
        
                    { 
        
                        Children = new List<DataSource>(); 
        
                    } 
        
                }

    
                <Window.Resources> 
        
                    <local:DataSource x:Key="DataSource"> 
        
                        <local:DataSource.Children> 
        
                            <local:DataSource Name="1"> 
        
                                <local:DataSource.Children> 
        
                                    <local:DataSource Name="2"> 
        
                                        <local:DataSource.Children> 
        
                                            <local:DataSource Name="3"> 
        
                                                <local:DataSource.Children> 
        
                                                    <local:DataSource Name="4"/> 
        
                                                </local:DataSource.Children> 
        
                                            </local:DataSource> 
        
                                        </local:DataSource.Children> 
        
                                    </local:DataSource> 
        
                                </local:DataSource.Children> 
        
                            </local:DataSource> 
        
                        </local:DataSource.Children> 
        
                    </local:DataSource> 
        
                </Window.Resources> 
        
                <telerik:RadTreeView ItemsSource="{Binding Path=Children, Source={StaticResource DataSource}}" IsEditable="True"> 
        
                    <telerik:RadTreeView.ItemTemplate> 
        
                        <HierarchicalDataTemplate ItemsSource="{Binding Path=Children}"> 
        
                            <TextBlock Text="{Binding Path=Name}"/> 
        
                        </HierarchicalDataTemplate> 
        
                    </telerik:RadTreeView.ItemTemplate> 
        
                    <telerik:RadTreeView.ItemEditTemplate> 
        
                        <DataTemplate> 
        
                            <TextBox Text="{Binding Path=Name, Mode=TwoWay}"/> 
        
                        </DataTemplate> 
        
                    </telerik:RadTreeView.ItemEditTemplate> 
        
                </telerik:RadTreeView>

The above is the smallest reproduction I can find of this issue.
Editing any node (by pressing F2) brings up the TextBox as it should. However that TextBox is empty and a BindingExpression error occurs (as visible in the output window):

System.Windows.Data Error: 40 : BindingExpression path error: 'Name' property not found on 'object' ''String' (HashCode=557208335)'. BindingExpression:Path=Name; DataItem='String' (HashCode=557208335); target element is 'TextBox' (Name=''); target property is 'Text' (type 'String')

Making the Name property a proper DependencyProperty has no effect. The DataItem seems to be getting changed. Curiously, if you change DataSource to NOT extend DependencyObject (ie make it just a CLR object), it works as expected. I cannot change my real hierarchy this way. Am I doing something wrong or should I log in PITS?

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Accepted