Delay while loop after each iteration

      while(condtion)

      {

         DateTime start = DateTime.Now;

         DateTime finish = start.AddSeconds(3); // or whatever the delay is to be

         do {} while (DateTime.Now < finish);

      }

However, it's not a great solution because it will just keep the processor busy doing nothing during the delay period and will probably prevent other threads from being scheduled. In contrast, Thread.Sleep only suspends the current thread.