Threading.Timer doesn't work

[vatawna]

I try to schedule a job to run every 30 mins, as follows:

---
System.Threading.AutoResetEvent autoEvent = new AutoResetEvent(false);
StatusChecker statusChecker = new StatusChecker();
System.Threading.TimerCallback timerDelegate = new TimerCallback(statusChecker.CheckStatus);

System.Threading.Timer stateTimer = new System.Threading.Timer(timerDelegate, autoEvent, TimeSpan.FromSeconds(1), TimeSpan.FromMinutes(1));
---

where CheckStatus is a public procedure in the StatusChecker class, declared as follows:

public class StatusChecker {
public StatusChecker() {...}
public void CheckStatus(object stateInfo) {...}
}


The timer runs only 1 time when the program is first executed, but not recurring every 30 mins after that. Does anybody know how to fix this?

Thanks.

 

[phinoppix]

System.Threading.AutoResetEvent autoEvent = new AutoResetEvent(false);
StatusChecker statusChecker = new StatusChecker();
System.Threading.TimerCallback timerDelegate = new TimerCallback(statusChecker.CheckStatus);

System.Threading.Timer stateTimer = new System.Threading.Timer(timerDelegate, autoEvent, TimeSpan.FromSeconds(1), TimeSpan.FromMinutes(1));

The timer (i'm not sure) and/or statusChecker could have expired (GC-ed) when your code goes out of scope.
Try declaring the timer and statusChecker on the class level.

 

[chiph]

Possibly stupid question - is your program still running 30 minutes later?

Also - you might want to look at using the Windows Task Manager (previously known at the AT command).

Chip H.


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