public static List<ABC> ToList(BLL.ABC v)
        {
            List<ABC> list = new List<ABC>();
            while (!v.EOF)
            {
                ABC t = new ABC();
              if(!v.IsColumnNull("ID"))
                    t.ID = v.ID;
              if(!v.IsColumnNull("Value"))
                    t.Value = v.Value;
              if(!v.IsColumnNull("Description"))
                    t.Description = v.Description;

                list.Add(t);
                v.MoveNext();
            }
            return list;
        }