using System;

using AutoMapper;

public class Role

{

    public string Name { get; set; }

}

​

public class User

{

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public byte Age { get; set; }

    public Role Role { get; set; }

}

​

public class UserModel 

{

    public string Name { get; set; }

    public byte Age1 { get; set; }

    public string RoleName { get; set; }

}   

​

​

public class Program

{

    public static void Main()

    {

        Mapper.CreateMap<User, UserModel>()

            .ForMember(m => m.Name, opt => opt.ResolveUsing(e => e.FirstName + " " + e.LastName))

            .ForMember(m => m.Age1, opt => opt.MapFrom(e => e.Age))

            .ForMember(m => m.RoleName, opt => opt.MapFrom(e => e.Role.Name))

            .ReverseMap()

            .ForMember(m => m.FirstName, opt => opt.ResolveUsing(e => e.Name.Split(' ')[0]));

            //.ForMember(m => m.LastName, opt => opt.ResolveUsing(e => e.Name.Split(' ')[1]))

            //.ForMember(m => m.Age, opt => opt.MapFrom(e => e.Age1))

            //.ForMember(m => m.Role, opt => opt.ResolveUsing(e => new Role {Name = e.RoleName}));

        Console.WriteLine("Straight Mapping");

        var user = new User 

        {

            FirstName = "Sergey",

            LastName = "Guryev",

            Age = 28,

            Role = new Role {Name = "CoWorker"}

        };

        var userModel = Mapper.Map<UserModel>(user);

        Console.WriteLine(userModel.Name);

        Console.WriteLine(userModel.Age1);

        Console.WriteLine(userModel.RoleName);

        Console.WriteLine("Reverse Mapping");

        var userReverse = Mapper.Map<User>(userModel);

        Console.WriteLine(userReverse.FirstName);

        Console.WriteLine(userReverse.LastName);

        Console.WriteLine(userReverse.Age);

        Console.WriteLine(userReverse.Role != null ? userReverse.Role.Name : "ERROR");

    }

}