How do I exit a WPF application programmatically

Question

In the few years I ve been using C   Windows Forms   I ve never used WPF  But  now I love WPF  but I don t know how I am supposed to exit my application when the user clicks on the Exit menu item from the File menu   I have tried   this Dispose    this Exit    Application ShutDown    Application Exit    Application Dispose      Among many others  Nothing works

User · Accepted Answer

To exit your application you can call System Windows Application Current Shutdown     As described in the documentation to the Application Shutdown method you can also modify the shutdown behavior of your application by specifying a ShutdownMode   Shutdown  is implicitly called by Windows Presentation Foundation  WPF  in the following situations   When ShutdownMode is set to OnLastWindowClose  When the ShutdownMode is set to OnMainWindowClose  When a user ends a session and the SessionEnding event is either unhandled  or handled without cancellation    Please also note that Application Current Shutdown    may only be called from the thread that created the Application object  i e  normally the main thread

User · Answer

If you want to exit from another thread that didn t create the application object  use  System Windows Application Current Dispatcher InvokeShutdown

User · Answer

From xaml code you can call a predefined SystemCommand   Command  SystemCommands MinimizeWindowCommand    I think this should be the prefered way

User · Answer

private void  MenuExit Click object sender  RoutedEventArgs e       System Windows Application Current MainWindow Close         Override the onClose method in the Application Main window  protected override void OnClosing System ComponentModel CancelEventArgs e        MessageBoxResult result     MessageBox Show  Do you really want to close                                                 MessageBoxButton OKCancel       if  result    MessageBoxResult Cancel               e Cancel   true            base OnClosing e

User · Answer

Caliburn micro flavoured  public class CloseAppResult   CancelResult       public override void Execute CoroutineExecutionContext context                Application Current Shutdown            base Execute context            public class CancelResult   Result       public override void Execute CoroutineExecutionContext context                OnCompleted this  new ResultCompletionEventArgs   WasCancelled   true

User · Answer

As wuminqi said  Application Current Shutdown    is irreversible  and I believe it is typically used to force an application to close at times such as when a user is logging off or shutting down Windows   Instead  call this close   in your main window  This is the same as pressing Alt   F4 or the close  x  button on the window  This will cause all other owned windows to close and will end up calling Application Current Shutdown    so long as the close action wasn t cancelled  Please see the MSDN documentation on Closing a Window   Also  because this close   is cancellable you can put in a save changes confirmation dialog in the closing event handler  Simply make an event handler for  lt Window Closing       gt  and change e Cancel accordingly   See the MSDN documentation for more details on how to do this

User · Answer

According to my understanding  Application Current Shutdown   also has its drawback   If you want to show a confirmation window to let users confirm on quit or not  Application Current Shutdown   is irreversible

User · Answer

Summarizing  there are a few ways to do that    1  Killing the process  which skip the finalization  error handling etc    Process GetCurrentProcess   Kill      2  Shutting down current application  which is probably the proper way because it calls the exit events   Application Current Shutdown      or  this Shutdown       when clled in an instance of App-class   3  Closing current app  all forms have to be closed finished earlier    this Close        when clled in an instance of App-class   4  Exiting the environment  which terminates the app   Environment Exit 0     Also  You may want to read about exit statusses here

User · Answer

Here s how I do mine      Any control that causes the Window Closing even to trigger  private void MenuItemExit Click object sender  RoutedEventArgs e        this Close          Method to handle the Window Closing event  private void Window Closing object sender  CancelEventArgs e        var response   MessageBox Show  Do you really want to exit     Exiting                                         MessageBoxButton YesNo  MessageBoxImage Exclamation       if  response    MessageBoxResult No                e Cancel   true            else               Application Current Shutdown              I only call for Application Current ShutDown   from the main application window  all other windows use this Close     In my main window  Window Closing      handles the top right x button   If any of the methods call for window closer  Window Closing      grabs the event for shut down if user confirms   The reason I do in fact use Application Current Shutdown   in my main window is that I ve noticed that if a design mistake was made and I haven t declared a parent of one of my windows in an application  if that window is opened without being shown prior to the last active window closing  I m left with a hidden window running in the background   The application will not shut down   The only way to prevent complete memory leak is for me to go into the Task Manager to shut down the application   Application Current Shutdown   protects me from unintended design flaws   That is from my personal experience   In the end  use what is best for your scenario   This is just another piece of information

User · Answer

This should do the trick    Application Current Shutdown      If you re interested  here s some additional material that I found helpful   Details on Application Current  WPF Application LifeCycle

User · Answer

Try   App Current Shutdown      For me   Application Current Shutdown       didn t work

User · Answer

Application Current ShutdownMode   ShutdownMode OnExplicitShutdown

User · Answer

There should not be an Application ShutDown    or  Exit   message   Application is a static class  It does not refer to the current application  You need to get to the current application and then shut it down like this   Application Current Shutdown

User · Answer

Another way you can do this   System Diagnostics Process GetCurrentProcess   Kill      This will force kill your application  It always works  even in a multi-threaded application   Note  Just be careful not to lose unsaved data in another thread

User · Answer

If you really need it to close out you can also use Environment Exit    but it is not graceful at all  more like ending the process    Use it as follows   Environment Exit 0

User · Answer

Use any of the following as needed   1    App Current Shutdown    OR  Application Current Shutdown      2    App Current MainWindow Close    OR  Application Current MainWindow Close      Above all methods will call closing event of Window class and execution may stop at some point  cause usually applications put dialogues like  are you sure   or  Would you like to save data before closing    before a window is closed completely    3  But if you want to terminate the application without any warning immediately  Use below      Environment Exit 0

[c#] How do I exit a WPF application programmatically?

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