Entity|Entity Framework常用查询语句 EntityFramework常用查询语句

方法一：Linq to Entitie

var info = from p in entity.Users where p.ID >= 10 orderby p.ID descending select p; foreach (var item in info){Console.WriteLine("ID:" + item.ID + " " + "登录名:" + item.LoginName + " " + "密码:" + item.Password); }

方法二：Lamada表达式

var info2 = entity.Users.Where(p => p.ID >= 10).OrderByDescending(p => p.ID); foreach (var item in info){Console.WriteLine("ID:" + item.ID + " " + "登录名:" + item.LoginName + " " + "密码:" + item.Password); }

方法三：Entity SQL Language

var info3 = ((IObjectContextAdapter)entity).ObjectContext.CreateQuery(strSQL); foreach (var item in info){Console.WriteLine("ID:" + item.ID + " " + "登录名:" + item.LoginName + " " + "密码:" + item.Password); }

方法四：SqlQuery

try{string strSQL2 = "SELECT * FROM Users WHERE ID>=10 ORDER BY ID DESC"; var info4 = entity.Database.SqlQuery(strSQL2); foreach (var item in info){Console.WriteLine("ID:" + item.ID + " " + "登录名:" + item.LoginName + " " + "密码:" + item.Password); }}catch (Exception ex){Console.WriteLine(ex.Message); }

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