using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Serialization;

public class Program

{

    public static void Main(string[] args)

    {

        Track track = new Track

        {

            Title = "Black Dog",

            DisplayTitle = "Black Dog",

            Year = 1971,

            Duration = 4 * 60 + 56,

            TrackNumber = 1,

            Artist = new Artist

            {

                Name = "Led Zeppelin",

                DisplayName = "Led Zeppelin",

                IsGroup = true,

                IsActive = true,

                Country = "U.K.",

                Created = DateTime.Today,

                CreatedById = 1,

                Updated = DateTime.Today,

                UpdatedById = 1

            }

        };

        string json = JsonConvert.SerializeObject(track, Formatting.Indented);

        Console.WriteLine(json);

    }

}

​

public class ArtistInfo

{

    private Guid Id { get; set; }

    public string Name { get; set; }

    public string DisplayName { get; set; }

    public bool IsGroup { get; set; }

    public bool IsActive { get; set; }

    public string Country { get; set; }

}

​

public class Artist : ArtistInfo

{

    public DateTime Created { get; set; }

    public int CreatedById { get; set; }

    public DateTime Updated { get; set; }

    public int UpdatedById { get; set; }

}

​

public class Track

{

    public string Title { get; set; }

    public string DisplayTitle { get; set; }

    public int Year { get; set; }

    public int Duration { get; set; }

    public int? TrackNumber { get; set; }

    [JsonConverter(typeof(BaseTypeConverter<ArtistInfo>))]

    public ArtistInfo Artist { get; set; }

}

​

public class BaseTypeConverter<T> : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return typeof(T).IsAssignableFrom(objectType);

    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        JObject obj = new JObject();

        foreach (PropertyInfo prop in typeof(T).GetProperties())

        {

            if (prop.CanRead)

            {

                obj.Add(prop.Name, JToken.FromObject(prop.GetValue(value)));

            }

        }

        obj.WriteTo(writer);

    }

    public override bool CanRead

    {

        get { return false; }

    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        throw new NotImplementedException();

    }

}

​