asp.net-mvc-3 – 无法添加从其他类继承的模型的控制器

例：

public class Person
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public class User : Person
{
    public string Email { get; set; }
    public string Password { get; set; }
}

public class Context : DbContext
{
    public DbSet<Person> PersonSet { get; set; }
}

当我尝试使用具有读/写操作和视图的模板控制器添加控制器用户时,使用实体框架我收到此错误：

‘User’ is not part of the specified ‘Context’ class,and the ‘Context’ class could not be modifed to add a ‘DbSet’ property to it. (For example,the ‘Context’ class might be in a compiled assembly.)

我可以添加公共DbSet< User> UserSet {get;组;上下文但我不认为这是正确的方法.