AutoMapper - 如何將對象映射到對象列表

Question

我想使用 AutoMapper 將Person映射到Client列表：

這是我的模型：

public class Person
{
    public Guid Id { get; set;}
    public string Name { get; set;}
    public string Country { get; set;}
    public string PhoneNumber { get; set;}
}

public class Member
{
    public Guid Id { get; set;}
    public string FullName { get; set; }
}

public class Client
{
    public Member User { get; set; }
}

我試着用 AutoMapper 來做，但我做不到：

CreateMap<Person, List<Client>>();

Answer 1

您需要 4 個映射規則：

1. 將Person映射到Member 。

2. 將Member映射到Client 。

3. 將Person映射到Client 。

4. 將Person映射到List<Client> 。

CreateMap<Person, Member>()
    .ForMember(dest => dest.FullName, opt => opt.MapFrom(src => src.Name));
                                                                  
CreateMap<Member, Client>()
    .ForMember(dest => dest.User, opt => opt.MapFrom(src => src));
                                                                  
CreateMap<Person, Client>()
    .ConvertUsing((src, dest, ctx) => new Client { User = ctx.Mapper.Map<Member>(src) });
                                                                  
CreateMap<Person, List<Client>>()
    .ConvertUsing((src, dest, ctx) => new List<Client> { ctx.Mapper.Map<Client>(src) });

演示 @.NET Fiddle

Answer 2

您可以使用以下代碼映射它們：

CreateMap<Person, Client>()
    .ForMember(dest => dest.User, opt => opt.MapFrom(src => new Member { Id = src.Id, FullName = src.Name }));
CreateMap<Person, List<Client>>()
    .ConvertUsing(src => src.Select(x => new Client { User = new Member { Id = x.Id, FullName = x.Name } }).ToList());