c#Timers

        public static System.Timers.ElapsedEventHandler myDelegate;
        private bool delInUse;
        public System.Timers.Timer myTimer;



  public void setTimer(double Interval,string cb,string arg = "")
        {
            if (delInUse) { myTimer.Elapsed -= myDelegate; };
            myTimer.Stop();
            myDelegate = (s, e) => DisplayTimeEvent(s, e, cb, arg);
            myTimer.Elapsed += myDelegate;
            delInUse = true;
            myTimer.Interval = Interval;  // 1000;
            myTimer.Start();
        }
        public void DisplayTimeEvent(object source, System.Timers.ElapsedEventArgs e, string cb, string arg)
        {
            nPrint("Timer involked callback="+ cb);
            delInUse = false;
            myTimer.Elapsed -= myDelegate;
            tryCallBack(cb, "('" + arg + "');");
            myTimer.Stop();
        }