'宣言
 
Public Class GanttViewKeyBarUIElement 
   Inherits Infragistics.Win.UIElement
   Implements Infragistics.Win.UIAutomation.IProvideUIAutomation 
             
        
            
            public class GanttViewKeyBarUIElement : Infragistics.Win.UIElement, Infragistics.Win.UIAutomation.IProvideUIAutomation