How to dismiss the queued up thread :C#

Question

I have Timer callback thread which executes a particular function every 1 second. After certain event i am changing the timer to 60 seconds by disposing the old value and setting it to new one (60 seconds). Even after i dispose i see the function is being executed every second. I believe some of the thread request have queued up from the previous timer value since the time take to execute the function roughly takes around 3 seconds. This is my thread function

 private void ThreadFunction(object sender)
 {          
       getEvent();
       return;
 }

This is the getEvent function:

private void getEvent() {
mutex.WaitOne()
 //do the task
 .
 .
mutex.ReleaseMutex()
}

However even after i change the timer to 60 seconds i still see the above function is being executed every sec

something like this to set to new timer value

eventThreadTimer.Dispose();
eventThreadTimer= new System.Threading.Timer(CallBack, null, dueTimeInterval, dueTimeInterval);

Could some one help me to over come this problem ?

Answer 1

As this answer says

Reliably stop System.Threading.Timer?

• Basically you could use System.Timers.Timer
• If you cannot do that you can do this.Timer.Change(Timeout.Infinite, Timeout.Infinite);