using System;

using System.Collections.Generic;

using AutoMapper;

public class Program

{

    public static void Main()

    {

        // Startup.cs

        DataAccess.MapperBootstrapper.Configure();

        // Controller class

        var projMng = new BusinessLogic.ProjectManager();

        FiddleHelper.WriteTable(projMng.GetProjects());

    }

}

​

namespace Model

{

    public class Project

    {

        public Guid ID { get; set; }

        public string FullName { get; set; }

    }

}

​

namespace BusinessLogic

{

    public class ProjectManager

    {

        public List<Model.Project> GetProjects()

        {

            // Initialized from somewhere else

            var projectDataAccessor = new DataAccess.ProjectDataAccessor();

            return projectDataAccessor.GetProjects();

        }

    }

}

​

namespace DataAccess

{

    public class ProjectEntity

    {

        public Guid ID { get; set; }

        public string Area { get; set; }

        public string Name { get; set; }

    }

    public class ProjectDataAccessor

    {

        public List<Model.Project> GetProjects()

        {

            var dbCollection = new []

            {

                new ProjectEntity { ID = Guid.NewGuid(), Area = "Music", Name = "Foo Fighters" },

                new ProjectEntity { ID = Guid.NewGuid(), Area = "Social", Name = "Bar bar" }

            };

            return MapperBootstrapper.Instance.Map<List<Model.Project>>(dbCollection);

        }

    }

    public class ProjectProfile : Profile

    {

        public ProjectProfile()

        {

            CreateMap<ProjectEntity, Model.Project>()

                .ForMember(

                    dest => dest.FullName,

                    opt => opt.MapFrom(src => $"{src.Area}\\{src.Name}"));

        }

    }

    public static class MapperBootstrapper

    {

        private static IMapper _instance;

        internal static IMapper Instance => _instance;

​

        public static void Configure()

        {

            if (_instance != null)

                throw new InvalidOperationException("Already configured");

​

            var config = new MapperConfiguration(

                cfg =>

                {

                    cfg.AddProfile<ProjectProfile>();

                });

            _instance = config.CreateMapper();

        }

    }

}