Export (0) Print
Expand All
Expand Minimize

ComboBox.OnDrawItem Method

Raises the DrawItem event.

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

'Declaration
Protected Overridable Sub OnDrawItem ( _
	e As DrawItemEventArgs _
)

Parameters

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

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Show:
© 2015 Microsoft