动态linq to list排序

public class QeurySort
    {
        public static IList<T> Sort<T>(IList<T> list,string sidx,string sord)
        {
            switch (sord)
            {
                case "asc":
                    return list.OrderBy(l => GetValue(l, sidx)).ToList();
                case "desc":
                    return list.OrderByDescending(l => GetValue(l, sidx)).ToList();
                default:
                    return list.OrderBy(l => GetValue(l, sidx)).ToList();
            }

        }

        public static object GetValue<T>(T model, string sidx)
        {
            return model.GetType().GetProperty(sidx).GetValue(model, null);
        }
    }