MVC通用SelectListItem的处理

 public static IEnumerable<SelectListItem> ToSelectListItems<T>(IQueryable<T> results,
            Func<T, SelectListItem> fc)
        {
            List<SelectListItem> count = new List<SelectListItem>();
            foreach (var t in results)
            {
                count.Add(fc(t));
            }
            return count;
        }