I have this code /// <summary> /// registers css include file /// </summary> /// <param name="cssUrl"></param> /// <param name="page"></param> public static void RegisterCss(string cssUrl, Page page) { page.RegisterStartupScript(cssUrl, @"<LINK href=""" + cssUrl + @""" type=""text/css"" rel=""stylesheet"">"); } I run Change Signature and change the sequence of params /// <summary> /// registers css include file /// </summary> /// <param name="cssUrl"></param> /// <param name="page"></param> public static void RegisterCss(Page page, string cssUrl) { page.RegisterStartupScript(cssUrl, @"<LINK href=""" + cssUrl + @""" type=""text/css"" rel=""stylesheet"">"); } } As you can see the params within /// comment remained unchanged