DesignerEventHandler Gedelegeerde

Definitie

public delegate void DesignerEventHandler(System::Object ^ sender, DesignerEventArgs ^ e);

public delegate void DesignerEventHandler(object sender, DesignerEventArgs e);

type DesignerEventHandler = delegate of obj * DesignerEventArgs -> unit

Public Delegate Sub DesignerEventHandler(sender As Object, e As DesignerEventArgs)

Parameters

Voorbeelden

In het volgende voorbeeld ziet u hoe u een DesignerEventHandler en gebeurtenis registreert en DesignerDisposed verwerktDesignerCreated.

public:
   void LinkDesignerEvent( IDesignerEventService^ eventService )
   {
      // Registers an event handler for the DesignerCreated and DesignerDisposed events.
      eventService->DesignerCreated += gcnew DesignerEventHandler(
         this, &DesignerEventHandlerExample::OnDesignerEvent );
      eventService->DesignerDisposed += gcnew DesignerEventHandler(
         this, &DesignerEventHandlerExample::OnDesignerEvent );
   }

private:
   void OnDesignerEvent( Object^ sender, DesignerEventArgs^ e )
   {
      // Displays designer event information on the console.
      Console::WriteLine( "Name of the root component of the created or disposed designer: " +
         e->Designer->RootComponentClassName );
   }

public void LinkDesignerEvent(IDesignerEventService eventService)
{                                   
    // Registers an event handler for the DesignerCreated and DesignerDisposed events.
    eventService.DesignerCreated += new DesignerEventHandler(this.OnDesignerEvent);
    eventService.DesignerDisposed += new DesignerEventHandler(this.OnDesignerEvent);            
}

private void OnDesignerEvent(object sender, DesignerEventArgs e)
{
    // Displays designer event information on the console.
    Console.WriteLine("Name of the root component of the created or disposed designer: "+e.Designer.RootComponentClassName);
}

Public Sub LinkDesignerEvent(ByVal eventService As IDesignerEventService)
    ' Registers an event handler for the DesignerCreated and DesignerDisposed events.
    AddHandler eventService.DesignerCreated, AddressOf Me.OnDesignerEvent
    AddHandler eventService.DesignerDisposed, AddressOf Me.OnDesignerEvent
End Sub

Private Sub OnDesignerEvent(ByVal sender As Object, ByVal e As DesignerEventArgs)
    ' Displays designer event information on the console.
    Console.WriteLine(("Name of the root component of the created or disposed designer: " + e.Designer.RootComponentClassName))
End Sub

Opmerkingen

Wanneer u een DesignerEventHandler gemachtigde maakt, identificeert u de methode die de gebeurtenis verwerkt. Als u de gebeurtenis wilt koppelen aan uw gebeurtenis-handler, voegt u een exemplaar van de gemachtigde toe aan de gebeurtenis. De gebeurtenis-handler wordt aangeroepen wanneer de gebeurtenis plaatsvindt, tenzij u de gemachtigde verwijdert. Zie Afhandeling en het genereren van gebeurtenissen voor meer informatie over gedelegeerden voor gebeurtenissen.

Zie ook

• DesignerEventArgs