随笔分类 -  50.LINQ

linq group by
摘要：var customers = BuildCustomers();var results = from c in customers from o in c.Orders where c.FirstName.Length >=5 && o.Product == "Milk" group by c into avg select new { avg.Key.Firs... 阅读全文
posted @ 2010-12-09 14:56 庚武 阅读(324) 评论(0) 推荐(0)
linq to xml demo
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posted @ 2010-12-09 14:38 庚武 阅读(5) 评论(0) 推荐(0)
linq查询 List的sum,union
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posted @ 2010-11-21 22:20 庚武 阅读(7) 评论(0) 推荐(0)
Llinq查询 Skip,Take生成的sql语句
摘要：用sql profiler 监视运行的sql语句如下： 阅读全文
posted @ 2010-10-13 15:01 庚武 阅读(1253) 评论(0) 推荐(0)
Linq查询DataTable,DataRow
摘要：static void Main() { string strcon = global::TestLinqToSQL.Properties.Settings.Default.testConnectionString; SqlConnection conn = new SqlConnection(strcon); ... 阅读全文
posted @ 2010-10-13 14:06 庚武 阅读(3873) 评论(1) 推荐(0)
LINQ Introduction
摘要：Microsoft is touting LINQ as a ‘‘groundbreaking innovation’’ that promises to ‘‘revolutionize the waydevelopers work with data.’’ Like you, I was somewh... 阅读全文
posted @ 2010-10-07 17:28 庚武 阅读(238) 评论(0) 推荐(0)