Visual Basic (Declaration) | |
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Protected Overridable Sub OnKeyPress( _ ByVal sender As Object, _ ByVal e As KeyPressEventArgs _ ) |
Visual Basic (Usage) | Copy Code |
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Dim instance As DropDownEditor Dim sender As Object Dim e As KeyPressEventArgs instance.OnKeyPress(sender, e) |
C# | |
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protected virtual void OnKeyPress( object sender, KeyPressEventArgs e ) |
Parameters
- sender
- An System.Object value that indicates the event sender.
- e
- The System.Windows.Forms.KeyPressEventArgs instance that contains the event data.
Raising an event invokes the event handler through a delegate.
The OnKeyPress 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 OnKeyPress in a derived class, be sure to call the base class's OnKeyPress method so that registered delegates receive the event.
Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8