[WPF] DispatcherTimer and upgrade label

If you're trying to countdown from 60 seconds to 0 seconds, then try this:

DispatcherTimer dispatcherTimer = new DispatcherTimer();

dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);

dispatcherTimer.Interval = new TimeSpan(0, 0, 1); // 1 second interval

dispatcherTimer.Tick += dispatcherTimer_Tick;

dispatcherTimer.Tag = 61;

dispatcherTimer.Start();

private void dispatcherTimer_Tick(object sender, EventArgs e)

{

CommandManager.InvalidateRequerySuggested();

myOtherUserControl uc = VisualTreeHelpers.FindChild(this);

uc.SearchByTimer();

int countdown = (int)dispatcherTimer.Tag;

--countdown;

uc.timerLabel.Content = countdown.ToString();

if (countdown == 0)

{

dispatcherTimer.Tag = 61;

dispatcherTimer.Stop();

}

else

{

dispatcherTimer.Tag = countdown;

}