using System;

using System.Collections.Generic;

using System.Linq;

using AutoMapper;

public class Program

{

    public static void Main()

    {

        var mapper = new MapperConfiguration(cfg => {

            cfg.CreateMap<SourceQuestionnaireSubmission, DestQuestionnaireSubmission>()

                .ForMember(d => d.ParticipantId, d => d.MapFrom(s => s.ParticipationId))

                .ForMember(d => d.SurveyVersionId, d => d.MapFrom(s => s.Survey.Version))

                .ForMember(d => d.RespondantAnswers, d => d.MapFrom(s => s.States));

            cfg.CreateMap<State, RespondantAnswer>()

                .ForMember(d => d.QuestionId, d => d.MapFrom(s => s.QuestionId));

        }).CreateMapper();

        var source = new SourceQuestionnaireSubmission

        {

            ParticipationId = 1,

            Survey = new Survey { Version = 10 },

            States = new [] { new State { QuestionId = 100 }, new State { QuestionId = 999 } }

        };

        var dest = mapper.Map<SourceQuestionnaireSubmission, DestQuestionnaireSubmission>(source);

        Console.WriteLine("ParticipantId: {0}", dest.ParticipantId);

        Console.WriteLine("SurveyVersionId: {0}", dest.SurveyVersionId);

        Console.WriteLine("RespondantAnswers: {0}", string.Join(", ", dest.RespondantAnswers.Select(a => a.QuestionId)));

    }

}

​

public class SourceQuestionnaireSubmission

{

    public int ParticipationId { get; set; }

    public Survey Survey { get; set; }

    public State[] States { get; set; }

}

​

public class Survey

{

    public int Version { get; set; }

}

​

public class State

{

    public int QuestionId { get; set; }

}

​

public class DestQuestionnaireSubmission

{

    public int ParticipantId { get; set; }

    public int SurveyVersionId { get; set; }

    public IEnumerable<RespondantAnswer> RespondantAnswers { get; set; }

}

​

public class RespondantAnswer

{

    public int QuestionId { get; set; }

}