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