WPF closes windows and processes

Little scum · Posted on 12/8/2015 1:02:23 PM

Many people think that closing an application should be simple, such as an Application.Exit() in a Windows Form; The method can solve the problem, but don't abuse it in WPF, because the Application class does not have this method in WPF, but there is an Exit event driver, and closing the program in the WPF application pays a lot of attention:

The closure in a WPF application has the ShutdownMode property setting, with the values of the 3 enum types:

1) OnLastWindowClose the application when the last form is closed

2) OnMainWindowClose the application when the main form of the application is closed

3) OnExplicitShutdown shows call closed

In OnExplicitShutdown mode, the ShutDown method that calls the Application instance must be displayed

For example: Application.Current.Shutdown(-1); Here Application.Current returns the current Application instance of the current application.

Note that the above does not apply to XBAP, which automatically closes when the browser is closed.

<Window x:Class="WpfFistDemo.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" Loaded="windows_load" Closing="Window_Closing" >
<Grid>
</Grid>
</Window>

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private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
System.Environment.Exit(System.Environment.ExitCode);
}

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If the window starts a subthread: Application.Current.Shutdown(); Doesn't shut down the application's process, System.Environment.Exit(System.Environment.ExitCode); This will close all the child processes and end the process!

[WPF] WPF closes windows and processes

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