Automapper丢失参考

Question

如何将automapper设置为下一个方案可正常工作？

using AutoMapper; 
using System; 
using System.Collections.Generic; 

namespace ConsoleApplication5 
{ 
    public class Employee 
    { 
     public int Id { get; set; } 
     public string Name { get; set; } 
    } 

    public class Company 
    { 
     public int Id { get; set; } 
     public string Name { get; set; } 
     public List<Employee> Employees { get; set; } 
    } 

    public class Country 
    { 
     public List<Company> Companies { get; set; } 
     public List<Employee> Employees { get; set; } 
    } 

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

    public class CompanyDto 
    { 
     public int Id { get; set; } 
     public string Name { get; set; } 
     public List<EmployeeDto> Employees { get; set; } 
    } 

    public class CountryDto 
    { 
     public List<CompanyDto> Companies { get; set; } 
     public List<EmployeeDto> Employees { get; set; } 
    } 

    class Program 
    { 
     static void Main(string[] args) 
     { 
      // mapper set up 
      Mapper.Initialize((cfg) => 
      { 
       cfg.CreateMap<Country, CountryDto>(); 
       cfg.CreateMap<Company, CompanyDto>(); 
       cfg.CreateMap<Employee, EmployeeDto>(); 
      }); 

      // data 
      var company = new Company 
      { 
       Id = 1, 
       Name = "Blah", 
       Employees = new List<Employee> { 
        new Employee { Id = 1, Name = "John" }, 
        new Employee { Id = 2, Name = "Mary" }, 
       } 
      }; 

      var country = new Country { Companies = new List<Company> { company } }; 
      country.Employees = company.Employees; 

      // mapping 
      var dto = Mapper.Map<CountryDto>(country); 

      //print 
      dto.Companies[0].Employees[0].Id = 100; 
      Console.WriteLine("{0} - {1}", dto.Companies[0].Employees[0].Id, dto.Employees[0].Id); // should be the same 
      Console.WriteLine(dto.Companies[0].Employees[0].Id == dto.Employees[0].Id); // should be true 

      Console.WriteLine("End"); 
      Console.ReadLine(); 
     } 
    } 
} 

基本上我想改变我的第一DTO列表中的某些属性和变化应该反映到同一个列表，但在另一个porperty。

ps：当我使用我的域名实体工作的很好！