Automapper: complex if else statement in ForMember

Question

Assuming the Date is a nullable DateTime:

Mapper.CreateMap()               
             .ForMember(d         


        

Answer 1

In recent versions of AutoMapper, ResolveUsing was removed. Instead, use a new overload of MapFrom:

void MapFrom(Func mappingFunction);

Just adding another lambda/function parameter will dispatch to this new overload:

        CreateMap()
                .ForMember(dest => dest.SomeDestProp, opt => opt.MapFrom((src, dest) =>
                {
                    TSomeDestProp destinationValue;

                    // mapping logic goes here

                    return destinationValue;
                }));