AutoMapper-嵌套集合未映射

Question

我有一个具有以下实体类的ASP.NET Core应用程序：

public class CustomerEntity : IAuditableEntity {
   private readonly List<AddressEntity> _addresses = new List<AddressEntity>();

   public CustomerEntity() {
      Id = default;
      IsPremierCustomer = false;
   }

   public int Id { get; }

   public string FirstName { get; set; }

   public string LastName { get; set; }

   public int CustomerTypeId { get; set; }

   public string EmailAddress { get; set; }

   public bool IsPremierCustomer { get; private set; }

   public CustomerTypeEntity CustomerType { get; }

   public IReadOnlyCollection<AddressEntity> Addresses => _addresses;

   public void AddAddress(AddressEntity address) {
      _addresses.Add(address);
   }

   public void SetPremierStatus(bool premierCustomer) {
      if (IsPremierCustomer == premierCustomer) {
         return;
      }

      IsPremierCustomer = premierCustomer;
   }
}

public class CustomerTypeEntity {
   public CustomerTypeEntity(string description) {
      Id = default;
      Description = description;
   }

   public int Id { get; }

   public string Description { get; }
}

public class AddressEntity : IAuditableEntity {
   public AddressEntity() {
      Id = default;
   }

   public int Id { get; }

   public int CustomerId { get; set; }

   public int AddressTypeId { get; set; }

   public string Line1 { get; set; }

   public string Line2 { get; set; }

   public string Line3 { get; set; }

   public string Province { get; set; }

   public string PostalCode { get; set; }

   public int CountryId { get; set; }

   public AddressTypeEntity AddressType { get; }

   public CountryEntity Country { get; }
}

public class AddressTypeEntity {
   public AddressTypeEntity(string description) {
      Id = default;
      Description = description;
   }

   public int Id { get; }

   public string Description { get; }
}

public class CountryEntity {
   public CountryEntity(int numericCode, string alpha2Code, string alpha3Code, string englishName, string frenchName) {
      NumericCode = numericCode;
      Alpha2Code = alpha2Code;
      Alpha3Code = alpha3Code;
      EnglishName = englishName;
      FrenchName = frenchName;
   }

   public int NumericCode { get; }

   public string Alpha2Code { get; }

   public string Alpha3Code { get; }

   public string EnglishName { get; }

   public string FrenchName { get; }
}

以下是相应的DTO类：

public class CustomerWithAddressDTO {
   public int Id { get; set; }

   public string FirstName { get; set; }

   public string LastName { get; set; }

   public string CustomerType { get; set; }

   public string EmailAddress { get; set; }

   public bool IsPremierCustomer { get; set; }

   public IEnumerable<AddressDTO> Addresses { get; set; }
}

public class AddressDTO {
   public int Id { get; set; }

   public string AddressType { get; set; }

   public string Line1 { get; set; }

   public string Line2 { get; set; }

   public string Line3 { get; set; }

   public string Province { get; set; }

   public string PostalCode { get; set; }

   public string Country { get; set; }
}

我的映射定义如下：

public class CustomerWithAddressProfile : Profile {
   public CustomerWithAddressProfile() {
      CreateMap<AddressEntity, AddressDTO>()
         .ForMember(dest => dest.AddressType, src => src.MapFrom(x => x.AddressType.Description))
         .ForMember(dest => dest.Country, src => src.MapFrom(x => x.Country.Alpha3Code));

      CreateMap<CustomerEntity, CustomerWithAddressDTO>()
         .ForMember(dest => dest.CustomerType, src => src.MapFrom(x => x.CustomerType.Description))
         .ForMember(dest => dest.Addresses, src => src.MapFrom(x => x.Addresses));
   }
}

在我的代码中，我从数据库和地图中获取客户，包括地址，如下所示：

[HttpGet]
public ActionResult<IEnumerable<CustomerWithAddressDTO>> GetAllCustomers() {   
   var customers = _customerWithAddressRepository.FindAll();
   var customerDTOs = _mapper.Map<ICollection<CustomerEntity>, IEnumerable<CustomerDTO>>(customers);

   return Ok(customerDTOs);
}

正在正确填充（映射）客户。但是嵌套地址永远不会被填充。我一直在寻找解决方案，但仍然没有运气。有谁有任何想法。

谢谢。