LINQ删除记录

DataContext dbContext = new DataContext("data Source=192.168.0.66;database=LSS1;user id=sa;pwd=xit");

         //User为 数据映射类
        Table<User> users = dbContext.GetTable<User>();

        var result = from user in users
                     where user.UserName == this.txtUserName.Text.Trim()  //删除条件
                     select user;

       //执行删除操作

        users.DeleteAllOnSubmit(result);
        dbContext.SubmitChanges();