public Order Delete(int id)
        {
            var remove = _ltx.Remove(new Order {
                Id = id
            }).Entity;

            _ltx.SaveChanges();
            return(remove);
        }
        public Lamp Delete(int id)
        {
            var remove = _ltx.Remove(new Lamp {
                Id = id
            }).Entity;

            _ltx.SaveChanges();
            return(remove);
        }