ToolStripControlHost.OnKeyPress(KeyPressEventArgs) 方法

定義

引發 KeyPress 事件。Raises the KeyPress event.

protected:
 virtual void OnKeyPress(System::Windows::Forms::KeyPressEventArgs ^ e);
protected virtual void OnKeyPress (System.Windows.Forms.KeyPressEventArgs e);
abstract member OnKeyPress : System.Windows.Forms.KeyPressEventArgs -> unit
override this.OnKeyPress : System.Windows.Forms.KeyPressEventArgs -> unit
Protected Overridable Sub OnKeyPress (e As KeyPressEventArgs)

參數

e
KeyPressEventArgs

KeyPressEventArgs,其中包含事件資料。A KeyPressEventArgs that contains the event data.

備註

引發事件會透過委派叫用此事件處理常式。Raising an event invokes the event handler through a delegate. 如需詳細資訊,請參閱處理和引發事件For more information, see Handling and Raising Events.

OnKeyPress 方法也允許衍生類別處理事件,而不用附加委派。The OnKeyPress method also allows derived classes to handle the event without attaching a delegate. 這是在衍生類別中處理事件的慣用技巧。This is the preferred technique for handling the event in a derived class.

給繼承者的注意事項

當在衍生類別中覆寫 OnKeyPress(KeyPressEventArgs) 時,請確定呼叫基底類別的 OnKeyPress(KeyPressEventArgs) 方法,使已註冊的委派能接收到事件。When overriding OnKeyPress(KeyPressEventArgs) in a derived class, be sure to call the base class's OnKeyPress(KeyPressEventArgs) method so that registered delegates receive the event.

適用於