How to kill a thread instantly in C#?

Question

I am using the thread.Abort method to kill the thread, but it not working. Is there any other way of terminating the thread?

private void button1_Click(object sender, EventArgs e) {     if (Receiver.IsAlive == true)     {         MessageBox.Show("Alive");         Receiver.Abort();     }     else     {         MessageBox.Show("Dead");         Receiver.Start();     } } 

I am using this but every time I get the Alive status, Receiver is my global thread.

Answer 1

The reason it's hard to just kill a thread is because the language designers want to avoid the following problem: your thread takes a lock, and then you kill it before it can release it. Now anyone who needs that lock will get stuck.

What you have to do is use some global variable to tell the thread to stop. You have to manually, in your thread code, check that global variable and return if you see it indicates you should stop.

Answer 2

You can kill instantly doing it in that way:

private Thread _myThread = new Thread(SomeThreadMethod);  private void SomeThreadMethod() {    // do whatever you want }  [SecurityPermissionAttribute(SecurityAction.Demand, ControlThread = true)] private void KillTheThread() {    _myThread.Abort(); } 

I always use it and works for me:)