Question

I’m trying to select TreeViewItem on right mouse click. There is my XAML:

<TreeView x:Name="treeView" ItemsSource ="{Binding DisplayedDocuments}"  
                    SelectedItemChanged="TreeView_SelectedItemChanged" IsEnabled="True"   
                    MouseRightButtonDown="treeView_MouseRightButtonDown">
        <sdk:TreeView.ItemTemplate>
        <sdk:HierarchicalDataTemplate ItemsSource="{Binding Path=DisplayedSubItems}">
             <StackPanel Orientation="Horizontal">
                <Image Source="{Binding Converter={StaticResource docImageConverter}}"/>
                <TextBlock Width="5"></TextBlock>
                <TextBlock Text="{Binding Caption}" 
                           MouseRightButtonDown="TextBlock_MouseRightButtonDown"/> 
             </StackPanel>  
        </sdk:HierarchicalDataTemplate>
        </sdk:TreeView.ItemTemplate>
</TreeView>

When I click on treeViewItem sometimes TextBlock.MouseRightButtonDown raises instead of treeView.MouseRightButtonDown. So, I want to get treeViewItem by TextBlock in TextBlock_MouseRightButtonDown. I’ve tried to get it this way:

    TextBlock docCaption = e.OriginalSource as TextBlock;
    StackPanel stackPanel = docCaption.Parent as StackPanel;

But stackPanel.Parent is null.

I’ve tried to find the control by name:

    TreeViewItem treeViewItem = (TreeViewItem)treeView.FindName(docCaption.Text);

but it returns null.

Answer 1

Use the VisualTreeHelper to get the parent: http://blogs.msdn.com/b/kmahone/archive/2009/03/29/visualtreehelper.aspx
http://miguelmadero.blogspot.com.au/2008/07/use-visualtreehelper-to-navigate.html