.net - How to get event/exception from timer event handler back to main thread in C#? -

i have windows service application (no winforms). in main method started timer. timer elapsed event handler running in new thread(?). easy way how throw exceptions timer elapsed event handler main thread?

i trying handle exceptions in handler body , rise custom events, when restart main process on rising event, runs 2 processes doing same things simultaneously.

how can event or exception information form timer event handler thread main thread?

thank you.

edit:

using system; using system.security.permissions; using system.timers;  namespace testingconsoleapplication.model {     static class threadexceptiontester     {     [securitypermission(securityaction.demand, flags = securitypermissionflag.controlappdomain)]     public static void run()     {         appdomain currentdomain = appdomain.currentdomain;         currentdomain.unhandledexception += new unhandledexceptioneventhandler(myhandler);          timer timer = new timer(1000);         timer.elapsed += new elapsedeventhandler(timereventhandler);         timer.start();          try         {             throw new exception("1");         }         catch (exception e)         {             console.writeline("catch clause caught : " + e.message);         }          //throw new exception("2");     }      static void myhandler(object sender, unhandledexceptioneventargs args)     {         exception e = (exception)args.exceptionobject;         console.writeline("myhandler caught : " + e.message);     }      static void timereventhandler(object source, elapsedeventargs e)     {         console.writeline("throwing timer event handler");         throw new exception("timer exception");     } } } 

this write on console this:

catch clause caught : 1 throwing timer event handler 

and program crash unhandled exception on throw new exception("timer exception"); if uncomment throw new exception("2"); exeption processed , on console "catch clause caught : 2". in other words, timer exceptions not processed myhandler.

you need use appdomain.unhandledexception event subscribing exception events.

edit: according msdn:

in .net framework version 2.0 , earlier, timer component catches , suppresses exceptions thrown event handlers elapsed event. behavior subject change in future releases of .net framework.

i have looked source of system.timers.timer .net4 using dotpeek , there still no changes since 2.0, consider using system.threading.timer instead.