c#-如何使用Automapper将一个源映射到多个目标？

以下是示例：实体：

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

   ......

   public ICollection ContactDetails { get; set; }
}

public class ContactDetail 
{  
   public Guid Id { get; set; }

   public int ContactId { get; set; }

   public ContactDetailTypes ContactDetailType { get; private set; }
   
   public string Email { get; set; }

   public string Address { get; set; }

   public string Phone { get; set; }

   ......
}

public enum ContactDetailTypes : byte
    {
        Email = 1,
        Phone = 2,
        Address = 3,
        ......

    }

视图模型：

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

   ......
   
   public ICollection ContactEmails { get; set; }
   public ICollection ContactPhones { get; set; }
   public ICollection ContactAddresses { get; set; }
}


public class ContactEmailViewModel
{  
   public Guid Id { get; set; }

   public int ContactId { get; set; }
   
   public string Email { get; set; }
}

public class ContactPhoneViewModel
{  
   public Guid Id { get; set; }

   public int ContactId { get; set; }
   
   public string Phone { get; set; }
}

public class ContactAddressViewModel
{  
   public Guid Id { get; set; }

   public int ContactId { get; set; }
   
   public string Address { get; set; }
}

我要映射联系人详细信息以联系MailViewModel、ContactPhoneViewModel、ContactAddressViewModel：

         CreateMap()
                .ForMember(dest => dest.Id, opts => 
                {
                    opts.PreCondition(s => s.ContactDetailType == ContactDetailTypes.Email);
                    opts.MapFrom(src => src.Id); 
                })
                .ForMember(dest => dest.ContactId, opts => 
                {
                    opts.PreCondition(s => s.ContactDetailType == ContactDetailTypes.Email);
                    opts.MapFrom(src => src.ContactId);
                })
                .ForMember(dest => dest.Email, opts => 
                {
                    opts.PreCondition(s => s.ContactDetailType == ContactDetailTypes.Email);
                    opts.MapFrom(src => src.Email); 
                });

(Phone, Address map are similar to above)
    

当我使用上述配置文件将Contact映射到ContactViewModel时，ContactEmail、ContactPhone和ContactAddresses的计数始终为0。我以为automapper可以检查detailType并将源映射到不同的目的地，但失败了。

如果我用这三个视图模型的所有属性创建一个ContactDetailViewModel，它会将所有属性从ContactDetail映射到ContactDetailViewModel。

在本例中，如何使用Automapper实现将一个源映射到多个目标？

更新：我添加了一张新地图，但仍然不走运：

CreateMap, ContactViewModel>()  
.ForMember(dest => dest.ContactEmails, opts => opts.MapFrom(src => src.Where(s => s.ContactDetailType == ContactDetailTypes.Email)))
.ForMember(dest => dest.ContactPhones, opts => opts.MapFrom(src => src.Where(s => s.ContactDetailType == ContactDetailTypes.Phone)))
.ForMember(dest => dest.ContactAddresses, opts => opts.MapFrom(src => src.Where(s => s.ContactDetailType == ContactDetailTypes.Address)));

为什么我的帖子会被投入。。。我这么问是因为我在几次尝试后都找不到答案。。。