Entity Framework + AutoMapper ( Entity to DTO and DTO to Entity )

Question

I\'ve got some problems using EF with AutoMapper. =/

for example :

I\'ve got 2 related entities ( Customers and Orders ) and they\'re DTO classes :

Answer 1

You should ignore mapping of some entity properties like so:

Mapper.CreateMap()
                .ForMember(dest => dest.EntityKey, opt => opt.Ignore())
                .ForMember(dest => dest.Licenses, opt => opt.Ignore())
                .ForMember(dest => dest.AccessCodes, opt => opt.Ignore());

If you examine the message from the exception thrown by Automapper, you should see the entity properties that cannot be mapped and ignore them as above.