'宣言
Public Class PopupMenuControl
Inherits PopupControlBase
Implements Infragistics.Win.AppStyling.ISupportAppStyling, Infragistics.Win.IUltraControl, Infragistics.Win.IUltraControlElement, Infragistics.Win.Touch.IGestureConsumer, Infragistics.Win.Touch.ISupportTouchMetrics, Infragistics.Win.UIAutomation.IProvideUIAutomation