AutoMapper map 只需要字段

Question

我使用 AutoMapper 来映射类。 我正在努力使用 Automapper 语法。 我有域类：

        public class Club
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public DateTime OpenDate { get; set; }
            public IEnumerable<Team> Teams { get; set; }
        }

        public class Team
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public string Department { get; set; }
            public IEnumerable<Player> Players { get; set; }
        }

        public class Player
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public string Surname { get; set; }
            public int Age { get; set; }
            public string Address { get; set; }
        }

我也有 dto 类：

        public class ClubDTO
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public DateTime OpenDate { get; set; }
            public IEnumerable<Team> TeamsDTO { get; set; }
        }

        public class TeamDTO
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public string Department { get; set; }
            public IEnumerable<Player> PlayersDTO { get; set; }
        }

        public class PlayerDTO
        {
            public int Id { get; set; }
            public string Name { get; set; }
            public string Surname { get; set; }
            public int Age { get; set; }
            public string Address { get; set; }
        }

我有域类中 DTO 类的映射设置：

CreateMap<PlayerDTO, Player>();
CreateMap<TeamDTO, Team>();
CreateMap<ClubDTO, Club>();

我 map ClubDTO class 到Club ：

...
 _mapper.Map(clubDto, club);
...

如何设置仅映射Player.Age和Player.Addres而不是所有字段所有类？

Answer 1

我相信您应该忽略您不想映射的任何属性，如下所示：

CreateMap<PlayerDTO, Player>();
    .ForMember(x => x.Id, x => x.Ignore())
    .ForMember(x => x.Name, x => x.Ignore());
    .ForMember(x => x.Surname , x => x.Ignore());

请注意，这应该在 automapper 配置期间完成，而不是在调用Map方法时完成。

Answer 2

你应该能够做这样的事情： _mapper.Map(from, to).ForMember(x => x.MyProperty, opt => opt.Ignore());

我还建议使用View Models 。 这对AutoMapper很大帮助，例如：

public class Player
{
     public int Id { get; set; }
     public string Name { get; set; }
     public string Surname { get; set; }
     public int Age { get; set; }
     public string Address { get; set; }
}

public class PlayerViewModel
{
     public int Id{get; set;
     //more fields that you can use in your views
}

Answer 3

 public class PlayerDTO
    {
       
        public int Age { get; set; }
        public string Address { get; set; }
    }

    var onlyAgeAndAdress=_mapper.Map(Player, PlayerDTO);

你只会得到年龄和地址。