07 2009 档案

LINQ to Entities 实现sql 关键字"In"方式总结
摘要：在LINQ to Entities中没有办法再像 LINQ to SQL 中一样使用 Contains 的方法来实现sql "in" 关键字 下面代码在 LINQ to SQL 中可行 在LINQ to Entities却无法运行：[代码]替代方法1:使用方法Any[代码]使用方法Any替换法搞了好久都没法实现直接对数组Any，下列代码仍无法执行：[代码]于是继续Goolge寻找第二种方法，在MS... 阅读全文
posted @ 2009-07-20 17:08 ejiyuan 阅读(18589) 评论(30) 推荐(4) 编辑
关于LinQ的动态Or查询
摘要：[代码]调用方法：[代码] 阅读全文
posted @ 2009-07-14 17:11 ejiyuan 阅读(2469) 评论(1) 推荐(1) 编辑
Ado.Net Entity : Object doesn’t display linked members (foreign keys)
摘要：I have a simple databasescheme: User, Account. User has 1-to-many relationship with Account.I have generated a ado.net entity data model, and I can create users and accounts, and even link them togeth... 阅读全文
posted @ 2009-07-08 14:47 ejiyuan 阅读(246) 评论(0) 推荐(0) 编辑
How do I write a LINQ to Entities query which has the equivalent of the SQL “in” keyword?
摘要：In SQL, you might write a query that looks something like this: SELECT * FROM Foo WHERE blah IN (1, 3, 5, 7). With LINQ to Entities you might have a similar scenario except that you are selecting from... 阅读全文
posted @ 2009-07-07 10:18 ejiyuan 阅读(342) 评论(1) 推荐(0) 编辑

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