DispatchTimer - Prevent the tick event to be triggered if the previous tick is still running

Question

In a Silverlight app, I have a block of code that has to run every 500ms. I am planning o use a DispatcherTimer to achieve this (see code below).

Dispatcher         


        

Answer 1

I would say you skip a tick if it takes too long, otherwise you will get a huge queue because of the lock.

So in the eventhandler say:

if(!busy) {
  busy = true;

  // some code which could take longer than 500 ms

  busy = false;
}