Dispatchertimer

C# 에는 타이머가 3개(?정확히 기억이..) 정도 존재하는 걸로 기억하는데
그중 하나인 DispatcherTimer 입니다.

System.Windows.Threading Namespace

C#

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//  DispatcherTimer setup
dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0,0,1);
dispatcherTimer.Start();

The Tick event handler updates a Label that displays the current second, and it calls InvalidateRequerySuggested on the CommandManager.

C#

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//  System.Windows.Threading.DispatcherTimer.Tick handler
//
//  Updates the current seconds display and calls
//  InvalidateRequerySuggested on the CommandManager to force 
//  the Command to raise the CanExecuteChanged event.
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
    // Updating the Label which displays the current second
    lblSeconds.Content = DateTime.Now.Second;

    // Forcing the CommandManager to raise the RequerySuggested event
    CommandManager.InvalidateRequerySuggested();
}