how to repeatly call my function in windows service

        
        System.Timers.Timer myTimer;
        void Main()
        {
            myTimer = new System.Timers.Timer(10*30*1000);
            myTimer.Elapsed += new System.Timers.ElapsedEventHandler(myTimer_Elapsed);
            myTimer.Start();
        }
   void myTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            myTimer.Stop();
            line();
            myTimer.Start();
        }
         protected override void OnStart(string[] args)
        {
            try
            {
                line();
            }
            catch
            {

            }
            Main();
     }
 protected override void OnStop()
        {
        }
         public void line()
        {

// some code here
        }
         


              
}

jagadeeshwaran