Stopping a Thread

[nasambur]

Hi, I'm writing a LoadGenerator application, in which for a specific period of time certain no.of Threads are created and executes simultaneously.. That i call as RampUp threads. After sleeping for a sustain period (10secs) of time.. I want to RampDown threads, that is i want to kill the threads one by one.. I have defined an ArrayList object alThreads to maintain the Threads list.. RampUp() method

public void RampUp()
{
  for(int i=0; i<10; i++)
  {
    Thread thread = new Thread(ExecuteSingleThread);
    thread.Start();
    if(alThread.Contains(thread) == false)
    {
      alThreads.Add(thread);
    }
    Thread.Sleep(5000);
  }
}

The below code kills the thread every five second.. RampDown() method

public void RampDown()
{
for(int i=0;i

Now the problem is after killing the first thread, all the remaining threads doesn't executes the code inside it.. Please help me.. regards, nas