/// <summary> /// Adds a range of route value /// </summary> /// <param name="routeValuesToAdd">a dictionary of route values to be added</param> /// <returns></returns> public static RouteValueDictionary AddRange(this RouteValueDictionary routeValues, IDictionary <string, object> routeValuesToAdd) { if (null == routeValuesToAdd) { return(routeValues); } return(routeValues.AddRange(new RouteValueDictionary(routeValuesToAdd))); }