OnMeasureItem Method

ComboBox.OnMeasureItem Method (MeasureItemEventArgs)

 

Raises the MeasureItem event.

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

Protected Overridable Sub OnMeasureItem (
	e As MeasureItemEventArgs
)

This method is called each time an owner-drawn ComboBox item needs to be drawn and before OnDrawItem is called. For more information, see MeasureItem.

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

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

.NET Framework
Available since 1.1
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