ListBox.OnMeasureItem(MeasureItemEventArgs) Method

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

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 -> unit

Protected Overridable Sub OnMeasureItem (e As MeasureItemEventArgs)

Parameters

e: MeasureItemEventArgs

A MeasureItemEventArgs that contains the event data.

Remarks

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

The OnMeasureItem method also enables 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