EF Code-First数据迁移

Code-First数据迁移 

首先要通过NuGet将EF升级至最新版本。

新建MVC 4项目MvcMigrationDemo

添加数据模型 Person 和 Department，定义如下：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Web;
 5 using System.ComponentModel.DataAnnotations;
 6 using System.ComponentModel.DataAnnotations.Schema;
 7 
 8 namespace MvcMigrationDemo.Models
 9 {
10     public class Person
11     {
12         [Key]
13         public int PersonID { get; set; }
14 
15         [Required]
16         [MaxLength(20)]
17         public string PersonName { get; set; }
18 
19         public virtual Department Departmant { get; set; }
20 
21     }
22 }

Person