C# linq泛型 字典集合 排序

      IList<MediaInfo> l = new List<MediaInfo>();
      l.OrderByDescending(m => m.Name);//降序

      Dictionary<int, string> dList = new Dictionary<int, string>();
      List<KeyValuePair<int, string>> list = dList.OrderByDescending(k => k.Value).ToList();//降序