'宣言 Protected Overridable Function IntersectChildElementInvalidRect( _ ByVal element As Infragistics.Win.UIElement, _ ByVal invalidRect As Rectangle, _ ByVal rightToLeftOffset As Integer, _ Optional ByVal zoomFactor As Single _ ) As Rectangle
protected virtual Rectangle IntersectChildElementInvalidRect( Infragistics.Win.UIElement element, Rectangle invalidRect, int rightToLeftOffset, float zoomFactor )