C# WPF 如何正确关闭新窗口? [英] C# WPF How to close a new window correctly?

问题描述

我有一个简单的问题:

1- 创建一个新的 WPF 项目，其中有一个启动窗口:MainWindow.xaml.

1- Create a new WPF project, there's startup window in it: MainWindow.xaml.

2- 在这个项目中，创建一个新窗口 Window1.xaml.

2- In this project, create a new window Window1.xaml.

3- Windows1 的加载事件，让它关闭.

3- Windows1's loaded event, let it close.

4- 将 Open 按钮放置到 MainWindow.实现它的点击事件.

4- Put an Open button to MainWindow. Implement it's click event.

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    this.Close();
}

private void button_Click(object sender, RoutedEventArgs e)
{
    Window1 w = new Window1();
    w.Show();
}

当我启动这个应用程序时，VS2015的UI变成了DEBUGING MODE，然后我点击窗口右上角的关闭按钮，VS2015的UI回到正常模式.

When I start this application, VS2015's UI became to the DEBUGING MODE, then I click the close button on the right top corner of the Window, VS2015's UI back to normal mode.

现在，如果我启动应用程序，单击 Open 按钮，然后 Window1 将快速显示并关闭，但是，如果我单击右上角的关闭按钮MainWindow，事情不同了:VS2015 不会回到正常模式而是停留在DEBUGING MODE.所以对我来说，这意味着有什么东西挂在那里，我不知道它是什么.

Now, if I start application, click Open button, then Window1 will show quickly and closed, but, if I click the close button on the right top corner of MainWindow, things different: VS2015 will no go back to normal mode but stay in DEBUGING MODE. so to me, that means something hang there and I don't know what is it.

有人知道如何解决这个问题吗?

Is there anyone know how to fix this problem?

推荐答案

在 App.xaml 集中:

In the App.xaml set:

ShutdownMode="OnMainWindowClose"

这必须解决问题.我建议阅读这个问题.

This must solve the problem. I recommend reading this question.

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