UpDownBase.OnTextBoxKeyPress(Object, KeyPressEventArgs) Method
Definition
Important
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Raises the KeyPress event.
protected:
virtual void OnTextBoxKeyPress(System::Object ^ source, System::Windows::Forms::KeyPressEventArgs ^ e);protected virtual void OnTextBoxKeyPress (object source, System.Windows.Forms.KeyPressEventArgs e);protected virtual void OnTextBoxKeyPress (object? source, System.Windows.Forms.KeyPressEventArgs e);abstract member OnTextBoxKeyPress : obj * System.Windows.Forms.KeyPressEventArgs -> unit
override this.OnTextBoxKeyPress : obj * System.Windows.Forms.KeyPressEventArgs -> unitProtected Overridable Sub OnTextBoxKeyPress (source As Object, e As KeyPressEventArgs)Parameters
- source
- Object
The source of the event.
A KeyPressEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnTextBoxKeyPress method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnTextBoxKeyPress(Object, KeyPressEventArgs) in a derived class, be sure to call the base class's OnTextBoxKeyPress(Object, KeyPressEventArgs) method so that registered delegates receive the event.
