Prism，AvalonDock区域适配器（处理关闭DocumentPane事件）

我有一个Prism v4/MEF/WPF解决方案，它将模块视图加载到我的Avalon Dock中的DocumentPane中。我试图在close事件上创建一个句柄（当按下'X'关闭一个DocumentPane时）。我无法弄清楚，这是创建DockableContent和也是我试图处理关闭事件（我试着用3个事件）的我RegionAdapter类的部分：Prism，AvalonDock区域适配器（处理关闭DocumentPane事件）

private void OnViewsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e, IRegion region, DocumentPane regionTarget) 
{ 
    if (e.Action == NotifyCollectionChangedAction.Add) 
    { 
     foreach (object item in e.NewItems) 
     { 
      UIElement view = item as UIElement; 

      if (view != null) 
      { 
       DockableContent newContentPane = new DockableContent() 
       { 
        Content = item, 
        Title = ((ITabViewInfo)view).TabViewTitle 
        Icon = ((ITabViewInfo)view).TabViewIcon 
       }; 
       newContentPane.Closed += new EventHandler(newContentPane_Closed); 
       newContentPane.Manager.DocumentClosed +=new EventHandler(Manager_DocumentClosed); 
       newContentPane.Manager.DocumentClosing +=new EventHandler<System.ComponentModel.CancelEventArgs>(Manager_DocumentClosing); 

       regionTarget.Items.Add(newContentPane); 
       newContentPane.Activate(); 
      } 
     } 
    } 
    else if (e.Action == NotifyCollectionChangedAction.Remove) 
    { 
     // this is never hit 
     Debug.WriteLine("removed"); 
    } 
}

这些事件从不打（我在每一个中都有一个debug.writeline）：

 newContentPane.Closed += new EventHandler(newContentPane_Closed); 
     newContentPane.Manager.DocumentClosed +=new EventHandler(Manager_DocumentClosed); 
     newContentPane.Manager.DocumentClosing +=new EventHandler<System.ComponentModel.CancelEventArgs>(Manager_DocumentClosing);

我该如何处理DocumentPane的关闭事件？

我用这个RegionAdapter的代码是基于关闭的http://blog.raffaeu.com/archive/2010/07/04/wpf-and-prism-tab-region-adapter-part-02.aspx

来源

2011-02-11 Chris Klepeis