.NET Timer Problems

[benlogan1981]

Why can I not get my .net c# program to execute a function every MS. Using the timers here...

http://msdn.microsoft.com/msdnmag/issues/04/02/TimersinNET/

Why if I run a timer over 20 seconds and try to increment a counter every millisecond does the timer end up at about 1300 instead of about 20,000 ?? I can't my head round this at all. The MSDN demo available from that link is quite interesting.

It prints a statement at every 'tick', yet with the timer set to an interval of 1ms it prints out roughly 45 lines every second, instead of around 1000.

I am missing something really obvious here - this is causing me a real headache.

Any help would be much appreciated.

http://www.hulklogan.co.uk

 

[earthandfire]

I believe that the Timer is not re-entrant.

Imagine what would happen if the Timer fired every millisecond and you had database access in the handler that took 5 minutes to run!

 

[benlogan1981]

I am not sure I follow. If you have a play with the MSDN demo app you will see that for an interval of 1ms the events are raised far less than every 1/1000th of a second. That is what I dont understand; in other words how do I get my application to perform a simple operation every millisecond. I appreciate the above comment regarding lengthy executions during a small interval, but I am not concerned with doing anything other than incrementing a counter at the minute.

Any further help would be much appreciated. earthandfire - could I ask simply how you would go about performing a very simple task every 1MS?

http://www.hulklogan.co.uk