PickGG

public class WorkTimer : Disposable
    {
        private readonly System.Threading.Timer timer;
        private readonly TimerCallback timerCallback;
        private int interval;
        private bool timerIsCalling = false;

        public WorkTimer(TimerCallback callback, object state, int dueTime, int interval)
        {
            timerCallback = callback;
            Interval = interval;

            timer = new System.Threading.Timer(Callback, state, dueTime, Interval);
        }

        protected override void ReleaseUnmanagedResources()
        {
            timer?.Dispose();
        }

        public int Interval
        {
            get { OnCallAnyMethod(); return interval; }
            set {
                OnCallAnyMethod();

                interval = value;
                if (!timerIsCalling)
                    timer?.Change(value, value);
            }
        }

        private void Callback(object state)
        {
            timerIsCalling = true;
            timer.Change(-1, -1); // Stop timer
            this.timerCallback(state);
            timer.Change(Interval, Interval); // Resume timer
            timerIsCalling = false;
        }

    }