ComboBox.DrawItem Event

 

Occurs when a visual aspect of an owner-drawn ComboBox changes.

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

member DrawItem : IEvent<DrawItemEventHandler,
    DrawItemEventArgs>

This event is used by an owner-drawn ComboBox. You can use this event to perform the tasks needed to draw items in the ComboBox. If you have a variable sized item (when the ComboBox.DrawMode property is set to the OwnerDrawVariable value of System.Windows.Forms.DrawMode), before drawing an item, the MeasureItem event is raised. You can create an event handler for the MeasureItem event to specify the size for the item that you are going to draw in your event handler for the DrawItem event.

For more information about handling events, see Handling and Raising Events.

The following code example demonstrates how to create an owner-drawn combo box by setting the DrawMode property to OwnerDrawnVariable and handling the DrawItem and MeasureItem events. It also demonstrates setting the DropDownWidth and DropDownStyle properties. To run the example, paste the following code in a form. Call the InitializeComboBox method in the form's constructor or Load event.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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