public IEnumerable <Order> FindAllCustomersOrdersBy(Guid customerId) { IEnumerable <Order> customerOrders = new List <Order>(); Query query = new Query(); //字符串 //query.Add(new Criterion("CustomerId", customerId, CriteriaOperator.Equal)); //Lambda query.Add(Criterion.Createe <Order>(o => o.CustomerId, customerId, CriteriaOperator.Equal)); query.OrderByProperty = new OrderByClause("CustomerId", true); customerOrders = _orderRepository.FindBy(query); return(customerOrders); }