OnKeyUp Method
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Control.OnKeyUp Method (KeyEventArgs)

 

Raises the KeyUp event.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

abstract OnKeyUp : 
        e:KeyEventArgs -> unit
override OnKeyUp : 
        e:KeyEventArgs -> unit

Parameters

e
Type: System.Windows.Forms.KeyEventArgs

A KeyEventArgs that contains the event data.

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnKeyUp 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 OnKeyUp in a derived class, be sure to call the base class's OnKeyUp method so that registered delegates receive the event.

The following code example uses the KeyUp event with the Help class to display pop-up style help to the user.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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