wp8 入门到精通 LINQ to SQL

 http://msdn.microsoft.com/zh-cn/library/bb397924.aspx LINQ 查询操作中的类型关系 (C#)

使用一个人类发明快速检索的方法

// Northwnd inherits from System.Data.Linq.DataContext.
Northwnd nw = new Northwnd(@"northwnd.mdf");
// or, if you are not using SQL Server Express
// Northwnd nw = new Northwnd("Database=Northwind;Server=server_name;Integrated Security=SSPI");

var companyNameQuery =
    from cust in nw.Customers
    where cust.City == "London"
    select cust.CompanyName;

foreach (var customer in companyNameQuery)
{
    Console.WriteLine(customer);
}

在上面的代码中，创建了 nw 对象来表示 Northwind 数据库，将 Customers 表作为目标，筛选出了来自 London的 Customers 行，并选择了一个表示 CompanyName 的字符串以进行检索。

执行循环时，将检索到 CompanyName 值的集合

http://msdn.microsoft.com/zh-cn/library/windowsphone/develop/bb399398(v=vs.100).aspx

http://www.cnblogs.com/lyj/archive/2008/01/28/1056133.html

Linq：基本语法form ，select， where（2）

http://www.cnblogs.com/liulun/archive/2009/06/02/1494740.html

时间排序 

string[] datatime = { "2014-03-28 19:21:03", "2014-03-28 12:39:14", "2014-03-28 13:52:49", "2014-03-29 20:23:36", "2014-03-29 18:32:35", "2014-03-29 18:02:49", "2014-03-29 07:46:48", "2014-03-30 13:28:40", "2014-03-30 19:30:36", "2014-03-30 23:58:53" };
List<Product> msgs = new List<Product>();
for (int i = 0; i < datatime.Length; i++)
{
Product p1 = new Product();
p1.Name = "张" + i + " ";
p1.Age = Convert.ToString(20 + new Random().Next(0, 12));
p1.Data = datatime[i];
msgs.Add(p1);
}

var dor = from d in msgs orderby d.Data select d;

this.listBox1.ItemsSource = dor;

using (PersonDB per = new PersonDB())
{
if (!per.DatabaseExists())
per.CreateDatabase();

Person p1 = new Person();
p1.Name = "张三";
p1.Age = 3;
per.Persons.InsertOnSubmit(p1);
Classes c1 = new Classes();
c1.CName = "san";
c1.Content = "111";
per.Classesss.InsertOnSubmit(c1);
per.SubmitChanges();
}

这个俩个表都插入了

http://blog.csdn.net/qinyuanpei/article/details/23869275 [Unity3D]Unity3D游戏开发之仿仙剑奇侠传角色死亡效果实现