Dispatcher Timer WPF

    var delayTimer = new System.Windows.Threading.DispatcherTimer(System.Windows.Threading.DispatcherPriority.Input);
    delayTimer.Interval = new TimeSpan(0, 0, 0, 0, 200); // milliseconds
    delayTimer.Tick += new EventHandler((arg1, arg2) =>
    {
        try
        {

        }
        finally
        {
            (arg1 as System.Windows.Threading.DispatcherTimer).Stop();
        }
    });
    delayTimer.Start();