DesignerEventHandler 代理人

定義

命名空間:

System.ComponentModel.Design

組件:

System.dll

代表處理DesignerCreatedDesignerDisposed文件建立或處置時所引發事件的方法。

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)

參數

sender

Object

事件的 來源。

e

DesignerEventArgs

DesignerEventArgs A 包含事件資料。

範例

以下範例示範註冊 a DesignerEventHandler 並處理 DesignerCreated 和 DesignerDisposed 事件。

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

備註

當你建立 DesignerEventHandler 代理人時，你就能確定處理事件的方法。 要將事件與你的事件處理器關聯，請將該代理的實例加入事件中。 事件處理程序會在事件發生時被呼叫，除非你移除代理。 欲了解更多關於事件處理代表的資訊，請參閱 「處理與提升事件」。

擴充方法

名稱	Description
GetMethodInfo(Delegate)	取得一個代表指定代理所代表方法的物件。

另請參閱

• DesignerEventArgs