TreeView.OnKeyDown Method (KeyEventArgs)

 

This API supports the product infrastructure and is not intended to be used directly from your code.

Raises the KeyDown event.

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

protected override void OnKeyDown(
	KeyEventArgs e
)

Parameters

e
Type: System.Windows.Forms.KeyEventArgs

A KeyEventArgs that contains the event data.

If the CheckBoxes property is set to true and the Handled property is set to false, the OnKeyDown method switches between selecting and clearing the check box when the user presses the SPACEBAR.

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

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

.NET Framework
Available since 1.1
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