如何在程序关闭时强制所有程序线程退出？

Question

关闭主窗口后，如何确保所有程序线程都中止？

Answer 1

You can set the "IsBackground" Property to true. The CLR closes all background threads when the application exits.

Answer 2

• If you have designed the threading well, you should have a mechanism to close them - eg use a ManualResetEvent to signal them to close
• You can Thread.Join to wait until they close, or Thread.Abort to have them abort in a nasty way
• If they are background threads, they will close when the app does

See also: http://msdn.microsoft.com/en-us/library/7a2f3ay4(v=vs.80).aspx

Answer 3

Try

Application.ExitThread();
Environment.Exit(0);

or

Dispatcher.CurrentDispatcher.Thread.Abort();

Answer 4

Set the IsBackground property to true,and add the following lines:

AppDomain.CurrentDomain.ProcessExit += CloseMe; // for the main process
AppDomain.CurrentDomain.DomainUnload += CloseMe; // for ApplicationDomains

Let the CloseMe method set a flag which is checked in the main loop of the thread.

Answer 5

Collect them somewhere, such as

static public List<Thread> AllThreads;

and use that collection to .Abort() them, one by one.

This is the HARD and WRONG way. Better would be to signal them to stop somehow, and then .Join() one by one.

Answer 6

By letting the program actually close, ie. dont deliberately introduce any code that forces the thread that runs the main window to wait for any other threads. The thread that runs the main window will then be free to exitProcess() and the OS will then abort all other threads in your process, no matter what they are doing.

Rgds, Martin