using System;

using System.Collections.Generic;

using System.Linq;

using AutoMapper;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {

        MapperConfiguration _config = new MapperConfiguration(cfg =>

                                                              {

                                                                 cfg.AddProfile<PersonDetailsProfile>(); 

                                                              });

        IMapper _mapper = _config.CreateMapper();

        PersonDetails src = new PersonDetails

        {

            PersonCode = "A01",

            PersonItems = new PersonItems

            {

                ItemCode = "B01",

                ItemName = "B01 Item",

                ItemColors = new List<string> { "White", "Black", "Red" }

            }

        };

        List<Details> dest = _mapper.Map<List<Details>>(src);

        Console.WriteLine(JsonConvert.SerializeObject(dest, Formatting.Indented));

    }

}

​

public class PersonDetailsProfile : Profile

{

    public PersonDetailsProfile()

    {

        RegisterPersonDetailstoDetailsObjectList();

    }

​

    public void RegisterPersonDetailstoDetailsObjectList()

    {

         CreateMap<PersonDetails, Details>()

            .ForMember(d => d.PersonCode, src=> src.MapFrom(src => src.PersonCode))

            .ForMember(d => d.ItemCode, src => src.MapFrom(src => src.PersonItems.ItemCode))

            .ForMember(d => d.ItemName, src => src.MapFrom(src => src.PersonItems.ItemName));

         CreateMap<PersonDetails, List<Details>>()

            .ConvertUsing((src, dest, ctx) =>

            {

                dest = new List<Details>();

                foreach (string itemColor in src.PersonItems.ItemColors)

                {

                    var details = ctx.Mapper.Map<Details>(src);

                    details.ItemColor = itemColor;

                    dest.Add(details);

                }

                return dest;

            });

    }

}

​

public class PersonDetails

{

    public PersonItems PersonItems { get; set; }

​

    public int CreatedBy { get; set; }

​

    public string PersonCode { get; set; }

}

​

public class PersonItems

{

    public string ItemCode { get; set; }

​

    public List<string> ItemColors { get; set; }

​

    public string ItemName { get; set; }

}

​

public class Seller

{

    public string SellerCode { get; set; }

​

    public Details details { get; set; }

}

​

public class Details

{

    public string ItemCode { get; set; }

​

    public string ItemColor { get; set; }

​

    public string ItemName { get; set; }

​

    public string PersonCode { get; set; }

}