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MenuItem.MeasureItem Event

Occurs when the menu needs to know the size of a menu item before drawing it.

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

public event MeasureItemEventHandler MeasureItem

In order for this event to be raised, you must have the OwnerDraw property of the menu item set to true. This event is raised before owner drawn menus are drawn to allow for the size of the menu item to be drawn to be specified. For more information about handling events, see Consuming Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the MeasureItem event. This report helps you to learn when the event occurs and can assist you in debugging.

To run the example code, paste it into a project that contains an instance of type MenuItem named MenuItem1. Then ensure that the event handler is associated with the MeasureItem event.

private void MenuItem1_MeasureItem(Object sender, MeasureItemEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Graphics", e.Graphics );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Index", e.Index );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ItemHeight", e.ItemHeight );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ItemWidth", e.ItemWidth );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "MeasureItem Event" );
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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