基于变量的自动映射器中的映射

Question

I am using Automapper for mapping my dtos. I have a tricky scenario where I want to map on condition.

if (countryCode == "")

    CreateMap<src, dest>()                
                .ForMember(dest => dest.CountryOriginCode, 
                            act => act.MapFrom(src => 
                 src.FirstOrDefault(k => k.Key == "CountryExportCode").Value))

else

    CreateMap<src, dest>()                
                .ForMember(dest => dest.CountryOriginCode, 
                            act => act.MapFrom(src => 
                 src.FirstOrDefault(k => k.Key == "CountryOriginCode").Value))

I have 2 requirements here.

1. I want to map it conditionally
2. How can I get the value of CountryCode which is in another object say CountryObject

Edit -

CreateMap<country, countryDto>()
.ForMember(dest => dest.CountryCode, act => act.MapFrom(src => src.CountryCode))

CreateMap<src, dest>()                
.ForMember(
    dest => dest.CountryOriginCode, 
    act => act.MapFrom(src => countryCode == CountryCode ? // Observer the CountryCode , I need it from above 
        src.FirstOrDefault(k => k.Key == "CountryExportCode").Value:
        src.FirstOrDefault(k => k.Key == "CountryOriginCode").Value)
)

Answer 1

How about this

CreateMap<src, dest>()                
    .ForMember(
        dest => dest.CountryOriginCode, 
        act => act.MapFrom(src => countryCode == "" ?
            src.FirstOrDefault(k => k.Key == "CountryExportCode").Value:
            src.FirstOrDefault(k => k.Key == "CountryOriginCode").Value)
    )