C# Border.AddHandler方法代码示例

        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            _dragWidget = (Border)GetTemplateChild("PART_DragWidget");
            if (_dragWidget != null)
            {
                _dragWidget.AddHandler(UIElement.MouseLeftButtonDownEvent, new MouseButtonEventHandler(HeaderLeftMouseButtonDown), true);
                _dragWidget.AddHandler(UIElement.MouseLeftButtonUpEvent, new MouseButtonEventHandler(HeaderMouseLeftButtonUp), true);
                _dragWidget.MouseMove += (o, e) => HeaderMouseMove(e);
            }

            CloseButton = (Button)GetTemplateChild("PART_CloseButton");
            if (CloseButton != null)
                CloseButton.Click += (o, e) => Close();

            Overlay = GetTemplateChild("PART_Overlay") as Panel;
            WindowRoot = GetTemplateChild("PART_WindowRoot") as Grid;

            WindowRoot.RenderTransform = _moveTransform;

            //TODO: move somewhere else
            _parent = VisualTreeHelper.GetParent(this) as FrameworkElement;
            _parent.SizeChanged += (o, ea) =>
            {
                Overlay.Height = ea.NewSize.Height;
                Overlay.Width = ea.NewSize.Width;
            };

            ChangeVisualState();
        }

    public override void OnApplyTemplate()
    {
      base.OnApplyTemplate();

      if( _dragWidget != null )
      {
        _dragWidget.RemoveHandler( UIElement.MouseLeftButtonDownEvent, new MouseButtonEventHandler( HeaderLeftMouseButtonDown ) );
        _dragWidget.RemoveHandler( UIElement.MouseLeftButtonUpEvent, new MouseButtonEventHandler( HeaderMouseLeftButtonUp ) );
        _dragWidget.MouseMove -= ( o, e ) => HeaderMouseMove( e );
      }

      _dragWidget = GetTemplateChild( "PART_DragWidget" ) as Border;

      if( _dragWidget != null )
      {
        _dragWidget.AddHandler( UIElement.MouseLeftButtonDownEvent, new MouseButtonEventHandler( HeaderLeftMouseButtonDown ), true );
        _dragWidget.AddHandler( UIElement.MouseLeftButtonUpEvent, new MouseButtonEventHandler( HeaderMouseLeftButtonUp ), true );
        _dragWidget.MouseMove += ( o, e ) => HeaderMouseMove( e );
      }

      if( CloseButton != null )
        CloseButton.Click -= ( o, e ) => Close();

      CloseButton = GetTemplateChild( "PART_CloseButton" ) as Button;

      if( CloseButton != null )
        CloseButton.Click += ( o, e ) => Close();

      WindowRoot = GetTemplateChild( "PART_WindowRoot" ) as Grid;
      WindowRoot.RenderTransform = _moveTransform;

      _parentContainer = VisualTreeHelper.GetParent( this ) as FrameworkElement;
      _parentContainer.LayoutUpdated += ParentContainer_LayoutUpdated;
      _parentContainer.SizeChanged += ParentContainer_SizeChanged;

      //initialize our modal background width/height
      _modalLayer.Height = _parentContainer.ActualHeight;
      _modalLayer.Width = _parentContainer.ActualWidth;

      //this is for XBAP applications only. When inside an XBAP the parent container has no height or width until it has loaded. Therefore
      //we need to handle the loaded event and reposition the window.
      if( System.Windows.Interop.BrowserInteropHelper.IsBrowserHosted )
      {
        _parentContainer.Loaded += ( o, e ) =>
            {
              ExecuteOpen();
            };
      }

      _root = GetTemplateChild( "Root" ) as Grid;

#if VS2008
      FocusVisualStyle = null;
#else
      Style focusStyle = _root.Resources[ "FocusVisualStyle" ] as Style;
      if( focusStyle != null )
      {
        Setter focusStyleDataContext = new Setter( Control.DataContextProperty, this );
        focusStyle.Setters.Add( focusStyleDataContext );
        FocusVisualStyle = focusStyle;
      }
#endif
      _root.Children.Add( _modalLayerPanel );
    }

 public override void OnApplyTemplate()
 {
     if (IsInDesignMode) return;
     if (this.Header == null)
     {
         var dictionary = Application.LoadComponent(new Uri("/SharedUI;component/Controls/Flyouts/FlyoutMessageBar.xaml", UriKind.Relative)) as ResourceDictionary;
         if (dictionary != null && dictionary.Contains("FlyoutMessageBarDefaultHeader"))
         {
             this.Header = dictionary["FlyoutMessageBarDefaultHeader"];
         }
     }
     var closeImage = this.GetTemplateChild("PART_CloseImage") as Image;
     if (closeImage != null)
     {
         closeImage.AddHandler(Image.MouseEnterEvent, new MouseEventHandler(this.OnCloseMouseEnter));
         closeImage.AddHandler(Image.MouseLeaveEvent, new MouseEventHandler(this.OnCloseMouseLeave));
         closeImage.AddHandler(Image.MouseLeftButtonDownEvent, new MouseButtonEventHandler(this.OnCloseMouseDown));
         closeImage.AddHandler(Image.MouseLeftButtonUpEvent, new MouseButtonEventHandler(this.OnCloseMouseUp));
     }
     _border = this.GetTemplateChild("border") as Border;
     if (_border != null)
     {
         _border.AddHandler(Border.MouseLeftButtonUpEvent, new MouseButtonEventHandler(this.OnMouseUp));
     }
     _openAnimation = this.GetTemplateChild("openAnimation") as DoubleAnimation;
     _closeAnimation = this.GetTemplateChild("closeAnimation") as DoubleAnimation;
     this.SetTransformationDirection();
     this.SetGeometry();
 }