WPF Application still runs in background after closing

Question

This is slightly related to the question asked here yet the answer does not apply to my case as I am not using threads:

I have converted one of my WinForm application to a WPF application, nothing drastic needed to be done except for change a few words to the WPF/C# 4.0 equivalents (MessageBoxButtons to MessageBoxButton, why the one letter difference?).

Anyway, if I run the application through the debugger it runs fine until I come to close it with the "X" button to the top right of the window. The application window closes but I noticed that the debugger still shows the stop icon, checking in the Task Manager confirms it is still running.

I am not running any other threads in the background so I know it's not waiting for something else.

I've only just started with WPF but I assumed that when the user closes the application then it should just...close?

Thanks for the help!

Kent Boogaart · Accepted Answer · 2011-09-27 16:26:22Z

54

What is your shutdown mode? If it's explicit, then it's because you're not explicitly shutting down. If it's main window, it's because you've not assigned the main window to Application.MainWindow.

edited Sep 27, 2011 at 16:26

user142162

answered Aug 22, 2010 at 22:26

Kent Boogaart

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1 Comment

Jamie Keeling Over a year ago

Thanks! I never knew there were different behaviours for shutting down an application. I simply added " ShutdownMode="OnMainWindowClose" " to my application's XAML as stated in your link and it worked like a charm!

Aziz Shaikh · Accepted Answer · 2011-11-30 05:36:52Z

17

Write this code on application closing button:

Application.Current.Shutdown()

edited Nov 30, 2011 at 5:36

Aziz Shaikh

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answered Dec 11, 2010 at 8:00

Shivanhsu Verma

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1 Comment

Despertar Over a year ago

I didn't have a closing button but by hitting the x it will call the Closed event and this worked well for me: this.Closed += (s,e) => Application.Current.Shutdown();

Community · Accepted Answer · 2017-05-23 12:09:17Z

alternatively, add this to your App.cs

public App() { ShutdownMode = ShutdownMode.OnLastWindowClose; }

Detailed explanation here

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