'宣言 Public Delegate Sub BeforeRibbonTabDropDownEventHandler( _ ByVal sender As Object, _ ByVal e As BeforeRibbonTabDropDownEventArgs _ )
public delegate void BeforeRibbonTabDropDownEventHandler( object sender, BeforeRibbonTabDropDownEventArgs e )
BeforeRibbonTabDropDownEventHandler メンバ Infragistics.Win.UltraWinToolbars 名前空間