ToolboxComponentsCreatingEventHandler Delegato

Definizione

Rappresenta il metodo che gestisce l'evento ComponentsCreating.Represents the method that handles the ComponentsCreating event.

public delegate void ToolboxComponentsCreatingEventHandler(System::Object ^ sender, ToolboxComponentsCreatingEventArgs ^ e);
public delegate void ToolboxComponentsCreatingEventHandler(object sender, ToolboxComponentsCreatingEventArgs e);
type ToolboxComponentsCreatingEventHandler = delegate of obj * ToolboxComponentsCreatingEventArgs -> unit
Public Delegate Sub ToolboxComponentsCreatingEventHandler(sender As Object, e As ToolboxComponentsCreatingEventArgs)

Parametri

sender
Object

Origine dell'evento.The source of the event.

e
ToolboxComponentsCreatingEventArgs

Oggetto ToolboxComponentsCreatingEventArgs che fornisce i dati per l'evento.A ToolboxComponentsCreatingEventArgs that provides data for the event.

Esempio

Il codice di esempio seguente fornisce un metodo che connette un gestore eventi per l' ComponentsCreating evento di un oggetto ToolboxItem e un ToolboxComponentsCreatingEventHandler metodo del gestore eventi che scrive il nome del tipo del componente che deve ricevere il nuovo componente o i componenti in Console quando il gestore eventi viene generato da un ComponentsCreating evento.The following example code provides a method that attaches an event handler for the ComponentsCreating event of a ToolboxItem, and a ToolboxComponentsCreatingEventHandler event handler method that writes the name of the type of the component that is to receive the new component or components to the Console when the event handler is raised by a ComponentsCreating event.

public:
   [PermissionSetAttribute(SecurityAction::Demand, Name="FullTrust")]
   void LinkToolboxComponentsCreatingEvent( ToolboxItem^ item )
   {
      item->ComponentsCreating +=
         gcnew ToolboxComponentsCreatingEventHandler( this, &Form1::OnComponentsCreating );
   }

private:
   void OnComponentsCreating( Object^ sender, ToolboxComponentsCreatingEventArgs^ e )
   {
      // Displays ComponentsCreating event information on the Console.
      Console::WriteLine( "Name of the class of the root component of " +
         "the designer host receiving new components: " +
         e->DesignerHost->RootComponentClassName );
   }
public void LinkToolboxComponentsCreatingEvent(ToolboxItem item)
{
    item.ComponentsCreating += new ToolboxComponentsCreatingEventHandler(this.OnComponentsCreating);
}

private void OnComponentsCreating(object sender, ToolboxComponentsCreatingEventArgs e)
{
    // Displays ComponentsCreating event information on the Console.
    Console.WriteLine("Name of the class of the root component of " +
    "the designer host receiving new components: " +
    e.DesignerHost.RootComponentClassName);
}
Public Sub LinkToolboxComponentsCreatingEvent(ByVal item As ToolboxItem)
    AddHandler item.ComponentsCreating, AddressOf Me.OnComponentsCreating
End Sub

Private Sub OnComponentsCreating(ByVal sender As Object, ByVal e As ToolboxComponentsCreatingEventArgs)
    ' Displays ComponentsCreating event information on the Console.
    Console.WriteLine(("Name of the class of the root component of the designer host receiving new components: " + e.DesignerHost.RootComponentClassName))
End Sub

Commenti

Quando si crea un delegato ToolboxComponentsCreatingEventHandler, si identifica il metodo che gestirà l'evento.When you create a ToolboxComponentsCreatingEventHandler delegate, you identify the method that will handle the event. Per associare l'evento al gestore eventi in uso, aggiungere all'evento un'istanza del delegato.To associate the event with your event handler, add an instance of the delegate to the event. Il gestore eventi viene chiamato ogni volta che si verifica l'evento, a meno che non venga rimosso il delegato.The event handler is called whenever the event occurs, unless you remove the delegate. Per ulteriori informazioni sui delegati del gestore eventi, vedere gestione e generazione di eventi.For more information about event-handler delegates, see Handling and Raising Events.

Metodi di estensione

GetMethodInfo(Delegate)

Ottiene un oggetto che rappresenta il metodo rappresentato dal delegato specificato.Gets an object that represents the method represented by the specified delegate.

Si applica a

Vedi anche