using System;

using AutoMapper;

​

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Mapper.CreateMap<Foo, Bar>().ConvertUsing<MyCustomConverter>();

        var source = new Foo { Notes = "A note" };

        var destination = new Bar { Notes = "B note" };

        Mapper.Map<Foo, Bar>(source, destination);

        Console.WriteLine(destination.Notes);

    }

    public class Foo

    {

        public string Notes { get; set; }   

    }

    public class Bar

    {

        public string Notes { get; set; }   

    }

    public class MyCustomConverter : ITypeConverter<Foo, Bar>

    {

        public Bar Convert(ResolutionContext context)

        {

            return Convert(context.SourceValue as Foo, context.DestinationValue as Bar);

        }

        private Bar Convert(Foo source, Bar destination)

        {

            destination.Notes = source.Notes + destination.Notes;

            return destination;

        }

    }

}