在ASP.NET MVC中对多个模型使用ViewModel

在ASP.NET MVC中创建具有多个模型(实体)的ViewModel时,我使用以下方法:

实体:

public class Student
{
    [Key]
    public int Id { get; set; }

    public string Name { get; set; }

    public string Surname { get; set; } 

    //Foreign key for Country
    public int CountryId { get; set; }

    public virtual Country Country { get; set; }
}

国家

public class Country
{
    [Key]
    public int Id { get; set; }

    public string Name { get; set; }

    public virtual ICollection<Student> Students { get; set; }
}

学生 视图模型:

public class StudentViewModel
{
    [Key]
    public int Id { get; set; }

    public string Name { get; set; }

    public string Surname { get; set; } 

    //Foreign key for Country
    public int CountryId { get; set; }

    public virtual Country Country { get; set; }
}

视图模型:

public class CountryViewModel
{
    [Key]
    public int Id { get; set; }

    public string Name { get; set; }

    //??? Should I use Student entity or StudentViewModel at here >>>
    public virtual ICollection<Student> Students { get; set; }
}

在这个阶段,我不确定是否应该在ViewModel中添加相关模型的实体或ViewModels。我使用Automapper并映射实体和viewmodels,但是我不想映射如下所示的每个属性,并且希望合并ViewModel类中的模型。。。

CreateMap<Student, StudentViewModel>()
   .ForMember(dest => ...)
   .ForMember(dest => ...)
   .ForMember(dest => ...)

那么,您能告诉我如何正确地合并viewmodel中的多个实体吗?