using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.IO;

using System.Threading;

using System.Collections.ObjectModel;

using System.Reflection;

using System.Runtime.Serialization;

using System.Data;

using System.ComponentModel;

using System.Globalization;

using System.Collections.Specialized;

using System.Web.Routing;

using System.Runtime.InteropServices;

using System.Text.RegularExpressions;

using System.Net;

using System.Runtime.Serialization.Formatters;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;

​

    // https://stackoverflow.com/questions/43416357/json-net-not-saving-type-information

​

    namespace Enums

    {

        public enum CsControlType

        {

            Base = 1,

            OptionsControl = 4,

        }

    }

​

    // https://stackoverflow.com/questions/43416357/json-net-not-saving-type-information

    public class Page

    {

        public Guid Id { get; set; }

        public Guid CustomerId { get; set; }

        [JsonProperty(ItemTypeNameHandling = TypeNameHandling.All)]

        public IList<Control> Controls { get; set; }

    }

​

    public class Control : ControlBase

    {

        public override Enums.CsControlType CsControlType { get { return Enums.CsControlType.Base; } }

    }

​

    public abstract class ControlBase

    {

        public Guid Id { get; set; }

​

        public abstract Enums.CsControlType CsControlType { get; }

​

        //public Enums.ControlType Type { get; set; }

​

        public string PropertyName { get; set; }

​

        public IList<int> Width { get; set; }

​

        public string FriendlyName { get; set; }

​

        public string Description { get; set; }

    }

​

    public class OptionsControl : Control

    {

        public override Enums.CsControlType CsControlType { get { return Enums.CsControlType.OptionsControl; } }

​

        public IDictionary<string, string> Options;

    }

​

    class TestClass

    {

        public static void Test()

        {

            var page = new Page

            {

                Controls = new List<Control>()

                {

                    new OptionsControl

                    {

                        Options = new Dictionary<string, string>() { { "TN", "TN "} },

                        PropertyName = "addresses[0].state",

                        Width = new List<int> { 2, 2, 6 },

                        FriendlyName = "State",

                    },

                },

            };

​

            var old = JsonConvert.DefaultSettings;

            try

            {

                var json = JsonConvert.SerializeObject(page, Formatting.Indented);

                Console.WriteLine(json);

            }

            finally

            {

                JsonConvert.DefaultSettings = old;

            }

​

        }

    }

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine("");

            TestClass.Test();

        }

    }