var results = from customer in customers
              where customer.State == "WA"
              let custOrders = (from order in orders
                                where customer.ID == order.ID
                                select new { order.Date, order.Amount })
              where custOrders.Count(co => co.Amount >= 10 &&
                                     co.Date >= DateTime.Now.AddMonths(−10)) >= 3
              select new { customer.Name, customer.Age };

下面另附上一条分页的linq语句:
var productList=(from prod in db.Products
where prod.Type="零食" orderby prod.datatime select u).Skip(PageSize*(PageNum-1)).Take(PageSize);
posted on 2017-06-15 14:50  WebCodes  阅读(415)  评论(1编辑  收藏  举报