'宣言 Protected Sub VerticalLine( _ ByVal geometry As GeometryCollection, _ ByVal x As Double, _ ByVal viewportRect As Rect, _ ByVal renderingInfo As PathRenderingInfo, _ ByVal isAxisLine As Boolean _ )
protected void VerticalLine( GeometryCollection geometry, double x, Rect viewportRect, PathRenderingInfo renderingInfo, bool isAxisLine )