using System;

using AutoMapper;

public class Program

{

    public static void Main()

    {

        Mapper.CreateMap<MyType, string>()

            .ConvertUsing(t => t.Name);

        var tp = new MyType { Name = "Bob" };

        Mapper.Map<string>(tp).Dump();

    }

}

​

public class MyType

{

    public string Name { get; set; }

}