如何扩展此代码中的所有节点?
<TreeView ItemsSource="{Binding Path=.}" Height="220" HorizontalAlignment="Left" Margin="224,0,0,0" Name="treeView1" VerticalAlignment="Top" Width="162">
<TreeView.ItemTemplate >
<HierarchicalDataTemplate ItemsSource="{Binding Path=Children}">
<StackPanel Orientation="Horizontal">
<CheckBox IsChecked="{Binding Path=IsChecked}" Focusable="False" Uid="{Binding Path=Id}" Click="CheckBox_Click"/>
<TextBlock Text="{Binding Path=Name}" Uid="{Binding Path=Id}"/>
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>