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After I close the main window of my program, the process is still running in the background.
How can I check what is the cause for this weird problem?
(I don’t know which part of my program code is relevant)
First check that the value of your application’s
ShutdownModeproperty is equal toShutdownMode.OnMainWindowClose— if it is not, see if the actual value is preventing the app from closing.If this does not solve the problem, then you have one or more non-background threads still running after the main window closes, preventing the process from shutting down. Break into the debugger and see how many threads are still alive and what they are doing; this will lead you to a solution.