Question

我的实体

public partial class Users
{
    public Users()
    {
        sexs = new HashSet<Ta>();
    }
    [BsonElement("_id")]
    [BsonId]
    public ObjectId UserID { get; set; }
    public string username { get; set; }
    public string email { get; set; }
    public virtual ICollection<Ta> sexs { get; set; }
}
public partial class Ta
{
    public string male { get; set; }
    public string female { get; set; }   
}


public class TEntity
{
    public string male { get; set; }
    public string female { get; set; }
}

 public class UsersEntity 
  {

    public ObjectId UserID { get; set; }
    public string email { get; set; }
    public virtual ICollection<TEntity> sexs { get; set; }
    public string username { get; set; }

}

我的服务：

  public void Insert(UsersEntity student)
       {
            Mapper.Initialize(cfg => cfg.CreateMap<TEntity, Ta>());
            Mapper.Initialize(cfg => cfg.CreateMap<UsersEntity, Users().ForMember(c => c.sexs,o => o.MapFrom(s =>s.sexs)));

            var a = Mapper.Map<UsersEntity, Users>(student);

            _unitOfwork.UsersRepo.Add(a);

        }

我失败了

var a = Mapper.Map<UsersEntity, Users>(student);

类型＆＃39; AutoMapper.AutoMapperMappingException＆＃39;的例外情况发生在AutoMapper.dll中但未在用户代码中处理

其他信息：错误映射类型。

我使用AutoMapper 5.1.1，Visual Studio 2015和MongoDB

请帮帮我!!谢谢！

Answer 1

您只能调用一次Mapper.Initialize。每次调用Initialize都会先调用Mapper.Reset()。尝试 C＃

Mapper.Initialize(cfg => {
            cfg.CreateMap<TEntity, Ta>();
            cfg.CreateMap<UsersEntity, Users>().ForMember(c => c.sexs, o => o.MapFrom(s => s.sexs));
            });

而不是两次电话。

我如何解决＆＃34;类型＆＃39; AutoMapper.AutoMapperMappingException＆＃39;发生在AutoMapper＆＃34; - ＆＃34;错误映射类型＆＃34;？

1 个答案: