|
摘要：
我们继续讲解LINQ to SQL语句，这篇我们来讨论Group By/Having操作符和Exists/In/Any/All/Contains操作符。 Group By/Having操作符 适用场景：分组数据，为我们查找数据缩小范围。 说明：分配并返回对传入参数进行分组操作后的可枚举对象。分组；延迟 1.简单形式：var q = from p in db.Products group p by ... 阅读全文
posted @ 2011-02-25 12:54 sunrack 阅读(490) 评论(0) 推荐(0) 编辑
摘要：
Created by Haithem at 2010/6/4 23:28:11 Attachment: Project.rar (27522 bytes) Hi there, I am trying to follow your example, so i can warn the user for some requirement http://demos.devexpress.com/ASPxperienceDemos/PopupControl/ClientSideAPI.aspx I have attached a test project, in which i have the as 阅读全文
posted @ 2011-02-25 12:52 sunrack 阅读(606) 评论(0) 推荐(0) 编辑 |
||