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 Tick As EventHandler

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 Sub dispatcherTimer_Tick(ByVal sender As Object, ByVal e As EventArgs)
	' Updating the Label which displays the current second
	lblSeconds.Content = Date.Now.Second

	' Forcing the CommandManager to raise the RequerySuggested event
	CommandManager.InvalidateRequerySuggested()
End Sub

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