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As a response for customer's question, I decided to write about using Like Operator in Linq to SQL queries. Starting from a simple query from Northwin 阅读全文
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Suppose you have a tblRoom and tblUserInfo. Now, you need to select all the rooms regardless of whether the room has user information or not. This cal 阅读全文
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linq to sql 实现左(右)连接,那个方法是对的var query2 = from tb0 in db.table_0 join tb1 in db.table_1 on table_0.关联键 equals table_1.关联键 into all from tb2 in all.Defa 阅读全文
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本节的主要内容:1、通过代理类的方式调用服务操作。2、通过通道的方式调用服务操作。3、代码下载 一、通过代理类的方式调用服务操作(两种方式添加代理类) 1.手动编写代理类,如下: 客户端契约: using System; using System.Collections.Generic; using 阅读全文