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DispatcherTimer.Tick Event

 
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Occurs when the timer interval has elapsed.

Namespace:   System.Windows.Threading
Assembly:  WindowsBase (in WindowsBase.dll)

public event EventHandler Tick

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

//  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();
}

.NET Framework
Available since 3.0
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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