using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/56508871/newtonsoft-json-how-to-deserialize-property-into-wrapper-object

​

    public class Obj 

    {

        public ArrayWrapper[] Array { get; set; } // I want it to work!!!

    }

​

    public struct ArrayWrapper : IEnumerable<int>

    {

        private readonly int[] array;

​

        public int Item0 { get { return array[ 0 ]; } }

        public int Item1 { get { return  array[ 1 ]; } }

​

        public ArrayWrapper(int[] array) {

            this.array = array;

        }

​

        public ArrayWrapper(IEnumerable<int> enumerable) 

        {

            this.array = enumerable.ToArray();

        }

        public static implicit operator ArrayWrapper(int[] array) {

            return new ArrayWrapper( array );

        }

        public IEnumerator<int> GetEnumerator()

        {

            return (array ?? Enumerable.Empty<int>()).GetEnumerator();

        }

​

        #region IEnumerable Members

​

        IEnumerator IEnumerable.GetEnumerator()

        {

            return GetEnumerator();

        }

​

        #endregion

    }

​

    class TestClass

    {

        public static void Test()

        {

            var obj = new Obj

            {

                Array = new []

                {

                    new ArrayWrapper(new [] { 1, 101 }),

                },

            };

            var json = JsonConvert.SerializeObject(obj);

            Console.WriteLine(json);

            var obj2 = JsonConvert.DeserializeObject<Obj>(json);

            var json2 = JsonConvert.SerializeObject(obj2);

            Console.WriteLine(json2);

            Assert.IsTrue(obj.Array.Length == obj2.Array.Length && obj.Array[0].SequenceEqual(obj2.Array[0]));

            Assert.IsTrue(JToken.DeepEquals(JToken.Parse(json), JToken.Parse(json2))); 

        }   

    }

​

    public class Program

    {

        public static void Main()

        {

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

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

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​