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TreeViewItem event query

Posted By:      Posted Date: September 18, 2010    Points: 0   Category :WPF
I have found what I think is an odd quirk with the tree view control.   Consider a simple window with a tree view:   <Window x:Class="TreeExample.MainWindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         Title="MainWindow" Height="350" Width="525">     <Grid>         <TreeView>             <TreeViewItem PreviewMouseDoubleClick="TreeViewItem_PreviewMouseDoubleClick" Header="Parent">                 <TreeViewItem PreviewMouseDoubleClick="TreeViewItem_PreviewMouseDoubleClick" Header="Child"/>               </TreeViewItem>         </TreeView>     </Grid> </Window> The mouse event is linked in this case to the same handler:   private void TreeViewItem_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e) {     TreeViewItem item = sender as TreeViewItem;     MessageBox.Show(item.Header.ToString());  &nb

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