// react on Timer Elapsed
 private void OnTimedEvent(object source, ElapsedEventArgs e)
 {
     lock (myLock)
     {
         _testValue = rand.Next();
         _myGdItem  = CreateDummyGazeData();
     }
 }
        private MyGazeDataItem CreateDummyGazeData()
        {
            MyGazeDataItem gdi = new MyGazeDataItem();

            return(gdi);
        }