Control.Resize Control.Resize Control.Resize Control.Resize Event


發生於重設控制項大小時。Occurs when the control is resized.

 event EventHandler ^ Resize;
public event EventHandler Resize;
member this.Resize : EventHandler 
Public Custom Event Resize As EventHandler 


下列程式碼範例會處理Resize事件的FormThe following code example handles the Resize event of a Form. 當表單的大小時,事件處理常式可確保表單保持正方形 (及其HeightWidth仍相同)。When the form is resized, the event handler ensures that the form stays square (its Height and Width remain equal). 若要執行此範例中,請確定與此事件處理方法相關聯表單的Resize事件。To run this example, make sure and associate this event-handling method with the form's Resize event.

   void Form1_Resize( Object^ sender, System::EventArgs^ /*e*/ )
      Control^ control = dynamic_cast<Control^>(sender);

      // Ensure the Form remains square (Height = Width).
      if ( control->Size.Height != control->Size.Width )
         control->Size = System::Drawing::Size( control->Size.Width, control->Size.Width );
private void Form1_Resize(object sender, System.EventArgs e)
   Control control = (Control)sender;
   // Ensure the Form remains square (Height = Width).
   if(control.Size.Height != control.Size.Width)
      control.Size = new Size(control.Size.Width, control.Size.Width);
Private Sub Form1_Resize(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Resize

   Dim myControl As Control
   myControl = sender

   ' Ensure the Form remains square (Height = Width).
   If myControl.Size.Height <> myControl.Size.Width Then
      myControl.Size = New Size(myControl.Size.Width, myControl.Size.Width)
   End If
End Sub


若要判斷Size重新調整過大小的控制項,您可以轉型sender已註冊之參數ControlEventHandler方法,以Control並取得其Size屬性 (或HeightWidth屬性個別)。To determine the Size of the resized control, you can cast the sender parameter of the registered ControlEventHandler method to a Control and get its Size property (or Height and Width properties individually).

若要處理自訂的版面配置,請使用Layout而不是調整大小事件的事件。To handle custom layouts, use the Layout event instead of the Resize event. Layout就會引發事件以回應Resize事件,同時也以回應其他會影響控制項的版面配置的變更。The Layout event is raised in response to a Resize event, but also in response to other changes that affect the layout of the control.

如需有關如何處理事件的詳細資訊,請參閱 < 處理和引發事件For more information about handling events, see Handling and Raising Events.