WPF 在关闭事件中隐藏窗口以防止应用程序终止
又是一个简单的问题。
我使用 WPF 中的一个窗口作为子窗口，我宁愿让“X”按钮隐藏窗口而不是关闭窗口。为此，我有：
private void Window_Closing(object sender, CancelEventArgs e) {
this.Hide();
e.Cancel = true;
}
问题是，当父窗口关闭时，它永远不会关闭并保持应用程序处于活动状态。
有没有一种干净的方法来处理这个问题？我想向所有用户控件（窗口）添加 Kill 标志：
public bool KillMe;
private void Window_Loaded(object sender, RoutedEventArgs e){
KillMe = false;
}
private void Window_Closing(object sender, CancelEventArgs e) {
this.Hide();
if (!KillMe) e.Cancel = true;
}
然后在 MainWindow_Closing() 中，我必须将所有窗口 KillMe 标志设置为 true。
有什么比创建额外的标志并在关闭之前忘记设置它们更好的方法吗？
A simple question again.
I am using a window in a WPF as a child window, where I would rather have the 'X' button hide the window instead of close. For that, I have:
private void Window_Closing(object sender, CancelEventArgs e) {
this.Hide();
e.Cancel = true;
}
The problem is that when the parent window is closed, this never closes and keeps the app alive.
Is there a clean way to deal with this? I thought of adding a Kill flag to all my user controls (windows):
public bool KillMe;
private void Window_Loaded(object sender, RoutedEventArgs e){
KillMe = false;
}
private void Window_Closing(object sender, CancelEventArgs e) {
this.Hide();
if (!KillMe) e.Cancel = true;
}
Then in MainWindow_Closing() I would have to set all window KillMe flags to true.
Any better way than creating additional flags and forgetting to set them before closing?
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您可以在“父级”中调用 Shutdown正在关闭处理程序...这将导致您的取消被忽略。
来自 Window.Closing：
You could call Shutdown in the "parent's" closing handler... This will cause your Cancel to be ignored.
From Window.Closing:
对于这种情况，我通常有自己的
AppGeneral静态类。当我真正退出应用程序时，我将 AppGeneral.IsClosing static bool 设置为 true。然后，关闭时：另外，您可以终止自己的进程（这很丑陋但有效:)）
Process.GetCurrentProcess().Kill();I usualy have my own
AppGeneralstatic class for such cases. When I'm realy exiting app I'm settingAppGeneral.IsClosingstatic bool to true. And then, when closing:Also, you can kill the your own process (that's ugly but working :) )
Process.GetCurrentProcess().Kill();使用
Application.Current.Shutdown();您应该在主窗口关闭方法中
。这应该覆盖任何子窗口的取消！
You should use
Application.Current.Shutdown();inside your master window closing method.
This should override canceling of any subwindow!
我遇到了类似的问题，并且在 App.xaml 中仅设置（没有额外的 C# 代码）ShutdownMode="OnMainWindowClose"（应用程序元素）就可以解决问题。
I had similar problem and setting ONLY (no extra C# code) ShutdownMode="OnMainWindowClose" (Application element) in App.xaml did the trick.