using AutoMapper;

using System;

​

/// <summary>

/// AutoMapper issue #3526 sample

/// Try change NuGet package AutoMapper to version 10.0.0 to see the currently working version

/// https://github.com/AutoMapper/AutoMapper/issues/3526

/// </summary>

class Program

{

    static void Main(string[] args)

    {

        var config = new MapperConfiguration(map => map.CreateMap<TModel, TInterface>().As<TConcrete>());

        var mapper = new Mapper(config);

​

        var model = new TModel { Value = "Some value" };

        var concrete = mapper.Map<TInterface>(model);

​

        if (concrete is TConcrete && concrete.Value.Equals("Some value"))

            Console.WriteLine("Correct");

        else

            Console.WriteLine("Incorrect");

    }

}

​

interface TInterface

{

    string Value { get; set; }

}

​

class TConcrete : TInterface

{

    public string Value { get; set; }

}

​

class TModel

{

    public string Value { get; set; }

}