Threads, processes and Application.Exit()

Question

My application consists of main message loop (GUI) and threads (Task.Factory).

In the threads I call some 3rd party applications with var p = new Process();

But when I invoke Application.Exit(); in the message loop - I can see that the processes, that were started in the threads are still in the memory and are being executed.

So the question is - how to kill all the threads and Processes right after Application.Exit(); has been invoked?

UPD:

old:

p.WaitForExit();

new:

while (!p.WaitForExit(1000))
{
    if (FlagToExit)
    {
        p.Kill();
        return;
    }
}

Answer 1

Handle the Application.ApplicationExit event.

Answer 2

Process are created independent of the parent process.

The best solution is to create a signal for the child processes and have them exit when it is signalled, gracefully shutting them down.

If the processes are outside of your control, then you'll have to use Process.CloseMainWindow and Process.Kill to kill them when your parent process is ready to exit.

Answer 3

Create a class calling the process and terminate it on it's dispose.

Answer 4

Simply try this

when you create a thread make it background thread

Thread.IsBackground = true;

and on Application.Exit();

all thread will be closed