Question

I need a timer that redirects me to another page after 5 seconds, the problem is that it redirects me to this page every 5 seconds, so I need to stop it. If I stop It after tmr.Start() It doesn’t execute the event. How can I do this in the event OnTimerTick?

DispatcherTimer tmr = new DispatcherTimer();
tmr.Interval = TimeSpan.FromSeconds(5);
tmr.Tick += new EventHandler(OnTimerTick);
tmr.Start();

void OnTimerTick(object sender, EventArgs e)
{
  NavigationService.Navigate(new Uri("/lvlSet1/s1lvl3.xaml", UriKind.Relative));            
}

Answer 1

Description

Two possible solutions.

1. Create your DispatcherTimer instance on class level, not in your method. Then you can acces them from your OnTimerTick Method.
2. You can cast the sender to DispatcherTimer in your OnTimerTick method.

Sample

1. Solution

    public class YourClass
    {
        DispatcherTimer tmr = new DispatcherTimer();

        public void YourMethodThatStartsTheTimer()
        {
            tmr.Interval = TimeSpan.FromSeconds(5);
            tmr.Tick += new EventHandler(OnTimerTick);
            tmr.Start();
        }

        void OnTimerTick(object sender, EventArgs e)
        {
            tmr.Stop();
            NavigationService.Navigate(new Uri("/lvlSet1/s1lvl3.xaml", UriKind.Relative));
        }      
    }

2. Solution

    void OnTimerTick(object sender, EventArgs e)
    {
        ((DispatcherTimer)sender).Stop();
        NavigationService.Navigate(new Uri("/lvlSet1/s1lvl3.xaml", UriKind.Relative));
    } 

More Information

MSDN: DispatcherTimer Class