Automapper复杂类型映射异常
我试图为一个新模块实现AutoMapper。
我在网站上有MVC模型,我正在研究,看起来像这样:
public class MvcModel
{
public Params Params { get; set; }
public Steps Steps { get; set; }
}
public class Params
{
public int? RequestId { get; set; }
public bool NewClient { get; set; }
}
public class Steps
{
public Step1 Step1 { get; set; }
public Step2 Step2 { get; set; }
public Step3 Step3 { get; set; }
}
public class Step1
{
public int Name { get; set; }
}
public class Step2
{
public int Phone { get; set; }
}
public class Step3
{
public int Email { get; set; }
}
另一方面,我有下一个课程,我必须通过一些服务:
public class Request
{
public Parameters Parameters { get; set; }
public RequestContent RequestContent { get; set; }
}
public class Parameters
{
public int NewClient { get; set; }
}
public class RequestContent
{
public int Id { get; set; }
public int InnerId { get; set; }
public string Session { get; set; }
public string Clerk { get; set; }
public bool Private { get; set; }
public PersonalDetails PersonalDetails { get; set; }
public Phones Phones { get; set; }
public ElectonicCommunication ElectonicCommunication { get; set; }
}
public class PersonalDetails
{
public int Name { get; set; }
}
public class Phones
{
public int Phone { get; set; }
}
public class ElectonicCommunication
{
public int Email { get; set; }
}
我创建了一个新的AutoMapper配置类(从Global.asax调用):
public class AutoMapperConfig
{
public static void Configure()
{
MapperConfiguration MapperConfiguration = new MapperConfiguration(cfg => {
cfg.AddProfile<Out>();
cfg.AddProfile<In>();
cfg.CreateMap<MvcModel, Request>();
});
MapperConfiguration.AssertConfigurationIsValid();
}
}
public class Out: Profile
{
protected override void Configure()
{
CreateMap<MvcModel, Request>()
.ForMember(dest => dest.Parameters, opt => opt.MapFrom(src => src.Params))
.ForMember(dest => dest.RequestContent, opt => opt.MapFrom(src => src.Steps));
}
}
public class In: Profile
{
protected override void Configure()
{
CreateMap<Request, MvcModel>()
.ForMember(dest => dest.Params, opt => opt.MapFrom(src => src.Parameters))
.ForMember(dest => dest.Steps, opt => opt.MapFrom(src => src.RequestContent));
}
}
这些都是示意性的类似,但实际的对象有点大,名称不同。
Excipationations: MvcModel
被映射到Request
和MvcModel
。
为了更准确:
MvcModel.Params
映射到Request.Parameters
并向后 MvcModel.Steps
被映射到Request.RequestContent
并向后 InnerId
, Session
, Clerk
, Request.RequestContent
Private
必须被忽略 问题:在应用程序启动时出现错误:
无法映射以下属性...:
添加自定义映射表达式,忽略,添加自定义解析器或修改目标类型...上下文映射到属性...从...到...从源类型映射到类型... AutoMapperMessageBugTests.SourceChild映射到抛出类型'AutoMapper.AutoMapperConfigurationException'的异常。
我没有找到关于如何在应用程序中使用AutoMapper的很好的文档,只是不知道如何正确使用它,以及我在做什么错误。
我无法找到复杂对象映射的好例子......
有人可以帮我弄这个吗?
感谢stuartd这正在工作!
我不明白的是,我必须从下到上映射! 所有的子对象都必须首先映射,以便在父对象映射的时候识别它们!
现在个人资料看起来像这样:
public class Out: Profile
{
protected override void Configure()
{
CreateMap<Step1, PersonalDetails>();
CreateMap<Step2, Phones>();
CreateMap<Step3, ElectonicCommunication>();
CreateMap<Params, Parameters>();
CreateMap<Params, RequestContent>()
.ForMember(dest => dest.Id, opt => opt.MapFrom(src => src.RequestId))
.ForAllMembers(opt => opt.Ignore());
CreateMap<Steps, RequestContent>()
.ForMember(dest => dest.PersonalDetails, opt => opt.MapFrom(src => src.Step1))
.ForMember(dest => dest.Phones, opt => opt.MapFrom(src => src.Step2))
.ForMember(dest => dest.ElectonicCommunication, opt => opt.MapFrom(src => src.Step3))
.ForAllMembers(opt => opt.Ignore());
CreateMap<MvcModel, Request>()
.ForMember(dest => dest.Parameters, opt => opt.MapFrom(src => src.Params))
.ForMember(dest => dest.RequestContent, opt => opt.MapFrom(src => src.Steps));
}
}
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