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