Automapper：“缺少类型映射配置或不受支持的映射”

Question

AssertConfigurationIsValid Passes，并且正在尝试的对象已完全填充，但我在调用的第一个 Map 请求中收到错误消息。

我正在尝试映射

Survey ToLoad = Mapper.Map<Survey>(U);

我正在使用下面的代码初始化 automapper。

//Lots of other Maps
Mapper.Initialize(cfg => cfg.CreateMap<User, SMUser>()
      .ForMember(t => t.AccountType, s => s.MapFrom(so => so.AccountType != null ? so.AccountType : String.Empty))
      .ForMember(t => t.Username, s => s.MapFrom(so => so.Username != null ? so.Username : String.Empty)));


Mapper.Initialize(cfg => cfg.CreateMap<SurveyMonkey.Containers.Survey, Survey>().ForMember(t => t.AnalyzeUrl, s => s.MapFrom(so => so.AnalyzeUrl != null ? so.AnalyzeUrl : String.Empty))
      .ForMember(t => t.Category, s => s.MapFrom(so => so.Category != null ? so.Category : String.Empty))
      .ForMember(t => t.CollectUrl, s => s.MapFrom(so => so.CollectUrl != null ? so.CollectUrl : String.Empty))
      .ForMember(t => t.EditUrl, s => s.MapFrom(so => so.EditUrl != null ? so.EditUrl : String.Empty))
      .ForMember(t => t.Language, s => s.MapFrom(so => so.Language != null ? so.Language : String.Empty))
      .ForMember(t => t.Preview, s => s.MapFrom(so => so.Preview != null ? so.Preview : String.Empty))
      .ForMember(t => t.SummaryUrl, s => s.MapFrom(so => so.SummaryUrl != null ? so.SummaryUrl : String.Empty))
      .ForMember(t => t.Title, s => s.MapFrom(so => so.Title != null ? so.Title : String.Empty)) 
      //Some more members
);

//LISTS
Mapper.Initialize(cfg => cfg.CreateMap<List<SurveyMonkey.Containers.Collector>, List<Collector>>());

//Lots of other List Maps

我正在使用 Nuget (5.2.0) 的最新稳定版本。

Answer 1

只打电话 Mapper.Initialize整个配置一次，否则你会覆盖它。

您可以将配置包装在继承的类中AutoMapper.Profile：

using AutoMapper;

public class MyAutoMapperProfile : Profile {

    protected override void Configure() {
        CreateMap<User, SMUser>();
        CreateMap<SurveyMonkey.Containers.Survey, Survey>();
        CreateMap<List<SurveyMonkey.Containers.Collector>, List<Collector>>();
    }
}

然后使用此配置文件初始化映射器：

Mapper.Initialize(cfg => {
    cfg.AddProfile<MyAutoMapperProfile>();
    cfg.AddProfile<OtherAutoMapperProfile>();
});

自动映射器配置