'宣言
Public Class AutoHideControl
Inherits DockControlBase
Implements Infragistics.Win.IUltraControlElement, Infragistics.Win.Layout.ILayoutItem, Infragistics.Win.Touch.ISupportTouchMetrics, Infragistics.Win.UltraWinDock.IDockingArea, Infragistics.Win.UltraWinDock.IDockingAreaEx