'宣言 Public Overloads Function GetPreviousSelectableTabItem( _ ByVal tab As Infragistics.Win.UltraWinTabs.ITabItem _ ) As Infragistics.Win.UltraWinTabs.ITabItem
public Infragistics.Win.UltraWinTabs.ITabItem GetPreviousSelectableTabItem( Infragistics.Win.UltraWinTabs.ITabItem tab )