ComponentEventHandler 대리자

정의

public delegate void ComponentEventHandler(System::Object ^ sender, ComponentEventArgs ^ e);

[System.Runtime.InteropServices.ComVisible(true)]
public delegate void ComponentEventHandler(object sender, ComponentEventArgs e);

public delegate void ComponentEventHandler(object sender, ComponentEventArgs e);

[<System.Runtime.InteropServices.ComVisible(true)>]
type ComponentEventHandler = delegate of obj * ComponentEventArgs -> unit

type ComponentEventHandler = delegate of obj * ComponentEventArgs -> unit

Public Delegate Sub ComponentEventHandler(sender As Object, e As ComponentEventArgs)

매개 변수

특성

ComVisibleAttribute

예제

다음 예제에서는 등록 하 고ComponentEventHandler, ComponentRemovedComponentAdding및 ComponentRemoving 이벤트를 처리 하는 방법을 ComponentAdded보여 줍니다.

public:
   void LinkComponentEvent( IComponentChangeService^ changeService )
   {
      // Registers an event handler for the ComponentAdded,
      // ComponentAdding, ComponentRemoved, and ComponentRemoving events.
      changeService->ComponentAdded += gcnew ComponentEventHandler(
         this, &ComponentEventHandlerExample::OnComponentEvent );
      changeService->ComponentAdding += gcnew ComponentEventHandler(
         this, &ComponentEventHandlerExample::OnComponentEvent );
      changeService->ComponentRemoved += gcnew ComponentEventHandler(
         this, &ComponentEventHandlerExample::OnComponentEvent );
      changeService->ComponentRemoving += gcnew ComponentEventHandler(
         this, &ComponentEventHandlerExample::OnComponentEvent );
   }

private:
   void OnComponentEvent( Object^ sender, ComponentEventArgs^ e )
   {
      // Displays changed component information on the console.
      if ( e->Component->Site != nullptr )
      {
         Console::WriteLine( "Name of the component related to the event: " +
            e->Component->Site->Name );
      }
      Console::WriteLine( "Type of the component related to the event: " +
         e->Component->GetType()->FullName );
   }

public void LinkComponentEvent(IComponentChangeService changeService)
{
    // Registers an event handler for the ComponentAdded,
    // ComponentAdding, ComponentRemoved, and ComponentRemoving events.
    changeService.ComponentAdded += new ComponentEventHandler(this.OnComponentEvent);            
    changeService.ComponentAdding += new ComponentEventHandler(this.OnComponentEvent);            
    changeService.ComponentRemoved += new ComponentEventHandler(this.OnComponentEvent);            
    changeService.ComponentRemoving += new ComponentEventHandler(this.OnComponentEvent);                        
}

private void OnComponentEvent(object sender, ComponentEventArgs e)
{
    // Displays changed component information on the console.            
    if( e.Component.Site != null )
        Console.WriteLine("Name of the component related to the event: "+e.Component.Site.Name);      
    Console.WriteLine("Type of the component related to the event: "+e.Component.GetType().FullName);
}

Public Sub LinkComponentEvent(ByVal changeService As IComponentChangeService)
    ' Registers an event handler for the ComponentAdded,
    ' ComponentAdding, ComponentRemoved, and ComponentRemoving events.
    AddHandler changeService.ComponentAdded, AddressOf Me.OnComponentEvent
    AddHandler changeService.ComponentAdding, AddressOf Me.OnComponentEvent
    AddHandler changeService.ComponentRemoved, AddressOf Me.OnComponentEvent
    AddHandler changeService.ComponentRemoving, AddressOf Me.OnComponentEvent
End Sub

Private Sub OnComponentEvent(ByVal sender As Object, ByVal e As ComponentEventArgs)
    ' Displays changed component information on the console.            
    If (e.Component.Site IsNot Nothing) Then
        Console.WriteLine(("Name of the component related to the event: " + e.Component.Site.Name))
    End If
End Sub

설명

대리자를 ComponentEventHandler 만들 때 이벤트를 처리할 메서드를 식별합니다. 이벤트를 이벤트 처리기와 연결하려면 대리자의 인스턴스를 이벤트에 추가합니다. 대리자를 제거하지 않는 한 이벤트가 발생할 때마다 이벤트 처리기가 호출됩니다. 이벤트 처리기 대리에 대한 자세한 내용은 이벤트 처리 및 발생을 참조하세요.

추가 정보

• ComponentEventArgs
• ComponentChangingEventHandler
• ComponentChangedEventHandler