Question

I have the following Map in AutoMapper:

AutoMapper.Mapper.CreateMap<MySourceObject, Int32>()
    .ForMember(d => d, o => o.MapFrom(s => s.Id));

I am trying to map the Id property of the source object to just an int as the destination.

Unfortunately, the above gives the following error:

Custom configuration for members is only supported for
              top-level individual members on a type

Any ideas?

What I am trying to achieve is not having to pass an entire complex object through to the ViewModel when all I need is the Id to bind to a DropDownList, as the returning POSTed form won’t recreate the complex object, just return the int. An int is all I need 🙂

Now, I could do this myself in code, but then that diminishes the point of having automapper.

Answer 1

Mapper.CreateMap<MySourceObject, int>().ConstructUsing(source => source.Id);