/// <summary>
/// Invoked whenever an unhandled <see cref="UIElement.GotFocus"/> event reaches this
/// element in its route.
/// </summary>
/// <param name="e">
/// The <see cref="RoutedEventArgs"/> that contains the event data.
/// </param>
protected override void OnGotFocus(RoutedEventArgs e)
{
ParentTreeView?.HandleGotFocus(this);
base.OnGotFocus(e);
}
