Timers.. PLEASE HELP!

Question

Hey gang I have an application which uses a System.Timers timer to do nothing more than change a lable by 1 second every 1 second. It just allws the user to keep track of how long they have been handling a particular task. The timer to update the label every 1 second works fine with one exception. When someone locks their workstation the timer seems to stop counting after about 3 to 5 minutes. At least when the user comes back from a lunch break after 1 hour the label on the timer still says 5:00 or so then once the system has been unlocked the timer continues. Is there any way I can correct this behavior such that the timer will continue to update the label even when the system is locked? any assistance would be extremely appreciated. Thank you. Bob

james · Answer

DateTime tmpstart = DateTime.Now; // all of your processing in here.... // then in your timer_click event..... do this: DateTime tmpend = DateTime.Now; TimeSpan tmpts = tmpend.Subtract(tmpstart); System.Diagnostics.Trace.WriteLine(tmpts.Minutes.ToString() + : + tmpts.Seconds.ToString() +  elapsed);

Boblysan · Answer

Is there any way that someone could give me an example of this?

Mykonine · Answer

Instead of having the timer itself increment the number I suggest using the DateTime class. At the start get the current time and save it (class field). Every time the timer ticks get the current time and then compare the two to get the number of seconds elapsed between the current time and the saved time. The label should display the correct time regardless of the timer's ticking frequency whether it's every ten milleseconds or every hour.