为什么窗口的卸载事件不会在 WPF 中触发?

问题描述

在我的 WPF 应用程序中，我创建了一个窗口，并通过调用 ShowDialog() 方法将其显示为对话框.但是当我通过 Close() 方法关闭窗口时，此对话框窗口不会触发 Unloaded 事件.

In my WPF application I have created a window and show it as a dialog by calling it by the method ShowDialog(). But when I close the window by Close() method the Unloaded event is not fired for this dialog window.

MyWindow obj = new MyWindow();
obj.ShowDialog();
obj.Close();

推荐答案

这是一个已知问题.

改用这个

   yourWindow.Dispatcher.ShutdownStarted += Dispatcher_ShutdownStarted;

   private void Dispatcher_ShutdownStarted( object sender, EventArgs e )
   {
       //do what you want to do on closing
   }

阅读此了解更多详情

编辑

如果以上不起作用，请尝试此

If above is not working try this

yourWindow.Closing += new CancelEventHandler(YourWindow_Closing);

void YourWindow_Closing(object sender, CancelEventArgs e)
{

}

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