DispatcherTimer.Tick Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when the timer interval has elapsed.
public:
event EventHandler ^ Tick;
public event EventHandler Tick;
member this.Tick : EventHandler
Public Custom Event Tick As EventHandler
Public Event Tick As EventHandler
Event Type
Examples
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();
}
' 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
Applies to
Surađujte s nama na GitHubu
Izvor za ovaj sadržaj možete pronaći na GitHubu, gdje možete stvarati i pregledavati probleme i zahtjeve za povlačenjem. Dodatne informacije potražite u našem vodiču za suradnike.
Povratne informacije
https://aka.ms/ContentUserFeedback.
Stiže uskoro: Tijekom 2024. postupno ćemo ukinuti servis Problemi sa servisom GitHub kao mehanizam za povratne informacije za sadržaj i zamijeniti ga novim sustavom za povratne informacije. Dodatne informacije potražite u članku:Pošaljite i pogledajte povratne informacije za