Little problem about using dispatchertimer on WP app developing

Question

First of all Hello to everyone,
I m developing a little game on VS 2013 for windows phone. I m using dispatchertimer for show error messege on screen every 30 seconds. I m using dispatchertimer for this. But error message doesn't show up on screen after 30 seconds, i need to touch screen
after 30 seconds for error message show up. How can i fix it ? I need to make this error message show up after 30 seconds without any touch.
Btw I've created, defined dispatchertimer in "OnNavigatedTo(NavigationEventArgs e)" function...

Answer 1

Hi PauBM,
But error message doesn't show up on screen after 30 seconds, i need to touch screen after 30 seconds for error message show up.
-> Sounds like you have to touch screen to start the timer...Not sure how you implement the function but I would suggest you share your code snippet with us. As Ken told, using dispatcher.begininvoke() to show the error is also necessary if your dispatcherTimer
is not in UI thread:
RunAsync method
Basically here is a simple code snippet that can help you:
DispatcherTimer = new DispatcherTimer { Interval = new TimeSpan(0, 0, 0, 0, 30) };
DispatcherTimer.Tick += DispatcherTimerTick;
DispatcherTimer.Start();
In the dispatcherTimerTick method:
private void DispatcherTimerTick(object sender, object e)
//display your error here
//if the dispatcherTimer runs in a non-UI threads, use
dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
//display error here
--James
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