/// <summary>
/// Walk the visual tree to find the ItemsControl and
/// hook its some events on it.
/// </summar
private void HookItemsControlEvents()
{
_itemsControl = GetDependencyObjectFromVisualTree(this,
typeof(ItemsControl)) as ItemsControl;
if (_itemsControl != null)
{
//Handle the Resize/ScrollChange/MouseWheel
//events to determine whether to switch to Normal mode
_itemsControl.SizeChanged +=
new SizeChangedEventHandler(OnCouldSwitchToNormalMode);
_itemsControl.AddHandler(ScrollViewer.ScrollChangedEvent,
new RoutedEventHandler(OnScrollViewerChanged));
_itemsControl.AddHandler(ScrollViewer.MouseWheelEvent,
new RoutedEventHandler(OnCouldSwitchToNormalMode), true);
}
}
private void ProcessPanelType()
{
if (null == _ui_lbLeft || null == _ui_lbRight || null == _ui_tvLeft || null == _ui_tvRight)
return;
switch (ePanelType)
{
case PanelTypes.list:
_ui_dlbLeft.Visibility = _ui_dlbRight.Visibility = Visibility.Visible;
_ui_dtvLeft.Visibility = _ui_dtvRight.Visibility = Visibility.Collapsed;
_ui_Search.DataContext = _ui_icLeft = _ui_lbLeft;
_ui_icRight = _ui_lbRight;
break;
case PanelTypes.tree:
_ui_dlbLeft.Visibility = _ui_dlbRight.Visibility = Visibility.Collapsed;
_ui_dtvLeft.Visibility = _ui_dtvRight.Visibility = Visibility.Visible;
_ui_Search.DataContext = _ui_icLeft = _ui_tvLeft;
_ui_icRight = _ui_tvRight;
break;
}
_ui_Search.DataContext = _ui_icLeft;
if (null != _ui_icLeft)
_ui_icLeft.RemoveHandler(MouseLeftButtonDownEvent, (MouseButtonEventHandler)ItemsControl_MouseLeftButtonDown);
if (null != _ui_icRight)
_ui_icRight.RemoveHandler(MouseLeftButtonDownEvent, (MouseButtonEventHandler)ItemsControl_MouseLeftButtonDown);
_ui_icLeft.AddHandler(MouseLeftButtonDownEvent, (MouseButtonEventHandler)ItemsControl_MouseLeftButtonDown, true);
_ui_icRight.AddHandler(MouseLeftButtonDownEvent, (MouseButtonEventHandler)ItemsControl_MouseLeftButtonDown, true);
ProcessItemTemplate();
}