public static MvcHtmlString CssInclude(this HtmlHelper html, Type type, params string[] urls) { var sb = new StringBuilder(); var hash = type.Assembly.GetHashCode(); foreach (string url in urls) sb.AppendLine(string.Format("<link rel=\"Stylesheet\" type=\"text/css\" href=\"{0}?v={1}\" />", url, hash)); return MvcHtmlString.Create(sb.ToString()); }