ComboBox.OnMeasureItem(MeasureItemEventArgs) Method


Raises the MeasureItem event.

 virtual void OnMeasureItem(System::Windows::Forms::MeasureItemEventArgs ^ e);
protected virtual void OnMeasureItem (System.Windows.Forms.MeasureItemEventArgs e);
abstract member OnMeasureItem : System.Windows.Forms.MeasureItemEventArgs -> unit
override this.OnMeasureItem : System.Windows.Forms.MeasureItemEventArgs -> unit
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(MeasureItemEventArgs) in a derived class, be sure to call the base class's OnMeasureItem(MeasureItemEventArgs) method so that registered delegates receive the event.

Applies to

See also