Check is spawned thread is running

check is thread is still running

I have a class that is called from a page in a new thread and I have property on the class to check if the thread is still running.  Here is the scenario


I have a class ..................

public void work()
{
}



I have property on this class to check if a spawn thread is running

public static bool IsThreadRunning()
{
  lock (StillRunningLock)
  {
      isRunning = false;
      Thread.Sleep(2000);
      return isRunning;
  }
}


I have a method on the class that is called from an aspx page in a new thread.  I set the isrunning flag to true

public void dowork()
{
  isRunning = true;
}


I call the method from page

        var work = new work();        
        Thread newThread = new Thread(new ThreadStart(work.dowork()));
        newThread.Start();

I and redirect to a status page

     Response.Redirect("checkthreadstatus.aspx");

On status page I check the if thread is running by the property IsThreadRunning() like this

   work.IsThreadRunning()

But is always returning false even though I know that the thread is running - what is wrong with this?