WPF C# - Timer countdown

Question

How can I implement the following in my piece of code written in WPF C#?

I have a ElementFlow control in which I have implemented a SelectionChanged event which (by defi

Answer 1

look here is the code of how to use DispatherTimer and you can add your own logic in it. that will depends on you..

 private void ListBox_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
    {
        DispatcherTimer timer = new DispatcherTimer();
        timer.Interval = TimeSpan.FromMilliseconds(2000);
        timer.Tick += timer_Tick;
        timer.Start();

    }

    void  timer_Tick(object sender, object e)
    {
       // show your message here..
    }