ASP。NET MVC:自动合并类

I have this code :

我有这段代码:

public class OrderModel
{
    public List<Order> Orders { get; set; }
}

public class Order
{
    public string Code { get; set; }
    public DateTime CreationDate { get; set; }
    public Customer Customer { get; set; }
}

public class Customer
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}
public class Or