public static string JsCssFile(this UrlHelper helper, string path) { var jsAndCssFileEdition = ConfigureHelper.GetAppSetting("JsAndCssFileEdition"); if (string.IsNullOrEmpty(jsAndCssFileEdition)) { jsAndCssFileEdition = Guid.NewGuid().ToString(); } path += string.Format("?v={0}", jsAndCssFileEdition); return(helper.StaticFile(path)); }