Collapse the table of content
Expand the table of content
Expand Minimize

ComboBox.OnDrawItem Method (DrawItemEventArgs)


Raises the DrawItem event.

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

protected virtual void OnDrawItem(
	DrawItemEventArgs e


Type: System.Windows.Forms.DrawItemEventArgs

A DrawItemEventArgs that contains the event data.

This method is called each time an owner-drawn ComboBox item needs to be drawn and after OnMeasureItem is called. For more information, see DrawItem.

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

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

.NET Framework
Available since 1.1
Return to top
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
© 2015 Microsoft