ComboBox.OnMeasureItem(MeasureItemEventArgs) Method
Definition
Important
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Raises the MeasureItem event.
protected:
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 -> unitProtected Overridable Sub OnMeasureItem (e As MeasureItemEventArgs)Parameters
The MeasureItemEventArgs that was raised.
Remarks
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.
