AutoMapper.Mapper不包含CreateMap的定义

Question

这可能是一个基本问题,但我想知道我没有得到AutoMapper.Mapper.CreateMap方法.

我使用错误的AutoMapper参考/包吗？谢谢

Answer 1

该CreateMap方法的静态版本在4.2中已弃用,然后从5.0版本的API中删除.Jimmy Bogard在这篇博客文章中更详细地讨论了这一点.

映射的新技术是非静态的,就像这样(代码来自帖子):

var config = new MapperConfiguration(cfg => {
    cfg.CreateMap<Source, Dest>();
});

IMapper mapper = config.CreateMapper();
var source = new Source();
var dest = mapper.Map<Source, Dest>(source);

Answer 2

以下是我在代码中使用AutoMapper的方法.

第1步:通过nuget-packages下载AutoMapper.

版本是

<package id="AutoMapper" version="6.1.1" targetFramework="net452" />

第1步:创建DTO类

public class NotificationDTO
{

    public DateTime DateTime { get; private set; }
    public NotificationType Type { get; private set; }
    public DateTime? OriginalDateTime { get; private set; }
    public string OriginalVenue { get; private set; }
    public ConcertDTO Concert { get; set; }
}

public class ConcertDTO
{
    public int Id { get; set; }
    public bool IsCancelled { get; private set; }
    public DateTime DateTime { get; set; }
    public string Venue { get; set; }

}

第2步:创建一个继承自Profile的AutoMapperProfile类

using AutoMapper;
using ConcertHub.DTOs;

namespace ConcertHub.Models
{
  public class AutoMapperProfile : Profile
  {
    public AutoMapperProfile()
    {
        CreateMap<Concert, ConcertDTO>();
        CreateMap<Notification, NotificationDTO>();
    }
  }
}

步骤3:在Global.asax文件的Application Start方法中注册AutoMapperProfile

protected void Application_Start()
    {
        AutoMapper.Mapper.Initialize(cfg => cfg.AddProfile<AutoMapperProfile>());

    }

最后是Api控制器中的魔法代码

public IEnumerable<NotificationDTO> GetNewNotification()
    {
        var userId = User.Identity.GetUserId();
        var notifications = _dbContext.UserNotifications
                .Where(un => un.UserId == userId && !un.IsRead)
                .Select(un => un.Notification)
                .Include(n => n.Concert)
                .ProjectTo<NotificationDTO>()//use Automapper.QueryableExtension namespace
                .ToList();

        return notifications;
    }

希望能帮助到你 .

Answer 3

以下是它现在的工作原理:

        Mapper.Initialize(cfg =>
        {
            cfg.CreateMap<SupervisorEmployee, SupervisorViewModel>()
            .ForMember
                (dst => dst.Name, src => src.MapFrom<string>(e => SupervisorViewModel.MapName(e)))
            .ForMember
                (dst => dst.OfficePhone, src => src.MapFrom<string>(e => e.OfficePhone.FormatPhone(e.OfficePhoneIsForeign)))
            .ForMember
                (dst => dst.HomePhone, src => src.MapFrom<string>(e => e.HomePhone.FormatPhone(e.HomePhoneIsForeign)))
            .ForMember
                (dst => dst.MobilePhone, src => src.MapFrom<string>(e => e.MobilePhone.FormatPhone(e.MobilePhoneIsForeign)));
        });