.Net Automapper an object to object mapper

Here’s a quick demo of Automapper a library to assist with mapping object items between objects.

using System;
using AutoMapper;

namespace CsharpAutoMapperDemo
{
    class CsharpAutoMapperExample
    {
        static void Main()
        {
            Mapper.CreateMap<User, Person>();

            var userWithAutoMap = new User()
                           {
                               FirstName = "FirstName",
                               LastName = "LastName",
                               UserId = "My user id",
                               Password = "My password",
                               EmailAddress = "My email",
                           };

            var personWithAutoMap = Mapper.Map<User, Person>(userWithAutoMap);

            Console.WriteLine(personWithAutoMap.FirstName);
            Console.WriteLine(personWithAutoMap.LastName);
            Console.WriteLine(personWithAutoMap.EmailAddress);
            Console.WriteLine();
            
            Mapper.Reset();

            Mapper.CreateMap<User, Person>()
                  .ForMember(x => x.EmailAddress,
                             y => y.MapFrom(src => src.FirstName + "" + src.LastName + "@email.com"));

            var userWithManualMap = new User()
            {
                FirstName = "FirstName",
                LastName = "LastName",
                UserId = "My user id",
                Password = "My password",
                EmailAddress = "My email",
            };

            var personWithManualMap = Mapper.Map<User, Person>(userWithManualMap);

            Console.WriteLine(personWithManualMap.FirstName);
            Console.WriteLine(personWithManualMap.LastName);
            Console.WriteLine(personWithManualMap.EmailAddress);

            Console.ReadKey();
        }
    }
}

The mapping classes:

namespace CsharpAutoMapperDemo
{
    class User
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string UserId { get; set; }
        public string Password { get; set; }
        public string EmailAddress { get; set; }
     
    }
}

namespace CsharpAutoMapperDemo
{
    class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string EmailAddress { get; set; }
        public string HomeAddress { get; set; }
        public string BuildingLocation { get; set; }
        
    }
}

The resultant output:


FirstName
LastName
My email

FirstName
LastName
[email protected]