How to map two different Interface such that one Interface value get change automatically other should get reflected

Question

I have Core in which Interface is declared as

    public interface IRequestProvider
    {
        int SomeId { get; set; }
    }

Implementation also define in same layer

and then I have another layer Repo layer in which I am calling another external nuget packages called DataAccess layer

in which I have declared

    public interface IRequestProvider
    {
        int SomeId { get; set; }
        int SomeOtherId { get; set; }
    }

so In core and DataAccess both layer I have defined IRequestProvider

Lamar code

 public static class SomeRegistry
    {
        public static void RegisterDISome(this ServiceRegistry services, IConfigurationRoot configurationRoot)
        {

            services.For<IRequestProvider>().Use<RequestProvider>().Scoped();

            services.For<DataAccessInterfaces.IRequestProvider>().Use<DataAccessModel.RequestProvider>().Scoped();

        }
    }

Scoped use to pass the same instance throughout the request

Automapper is enable

 public class DomainToRepoMappingsProfile : Profile
    {
        public DomainToRepoMappingsProfile()
        {
            this.CreateMap<IRequestProvider, DataAccess.IRequestProvider>()
                .ForMember(dst => dst.SomeOtherId, opt => opt.Ignore());
        }
    }

My expectation is when I change something in Core.IRequestProvider from any layer it should auto reflected in DataAccess.IRequestProvider layer

Currently I am calling IDomainToRepoMappingRequestProvider.map() each time to set DataAccess.IRequestProvider

 public class DomainToRepoMappingRequestProvider : IDomainToRepoMappingRequestProvider
    {
        private readonly IMapper _mapper = null;
        private readonly IRequestProvider _requestProvider = null;
        private DataAccess.IRequestProvider _dataAccessRequestProvider = null;
        public DomainToRepoMappingRequestProvider(IRequestProvider requestProvider, DataAccess.IRequestProvider dataAccessRequestProvider, IMapper mapper)
        {
            _mapper = mapper;
            _requestProvider = requestProvider;
            _dataAccessRequestProvider = dataAccessRequestProvider;
        }
        public void Map()
        {
            _mapper.Map(_requestProvider, _dataAccessRequestProvider);
        }
    }

I finding a solution to reflect changes automatically when something is changed without calling map()

Answer 1

How about having a property setter in the implementation of IRequestProvider call the mapper for you? The property getters and setters can be used to do much more than just setting a private backing field. An example:

public class RequestProvider : IRequestProvider
{
    private readonly _mappingProvider;
    private int _someId;

    public RequestProvider(IDomainToRepoMappingRequestProvider mappingProvider)
    {
        _mappingProvider = mappingProvider
    }

    public int SomeId
    {
        get;
        set 
        {
            _someId = value;
            _mappingProvider.Map();
        }
    }
}