我试图在鼠标右键单击时选择 TreeViewItem。有我的 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>
当我单击 treeViewItem 时，有时会TextBlock.MouseRightButtonDown引发而不是treeView.MouseRightButtonDown. 所以，我想通过 TextBlock_MouseRightButtonDown 中的 TextBlock 获取 treeViewItem。我试图以这种方式得到它：
TextBlock docCaption = e.OriginalSource as TextBlock;
StackPanel stackPanel = docCaption.Parent as StackPanel;
但 stackPanel.Parent 为空。
我试图按名称查找控件：
TreeViewItem treeViewItem = (TreeViewItem)treeView.FindName(docCaption.Text);
但它返回null。