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/5951043/how-to-inherit-the-attribute-from-interface-to-object-when-serializing-it-using?noredirect=1&lq=1

​

    public interface IParent

    {

        [JsonProperty]

        int Id {get;set;}

    }

​

    [JsonObject(MemberSerialization.OptIn)]

    public class Parent : IParent

    {

        public int Id { get;set; }  

        public string Name {get;set;}   

    }

​

    class TestClass

    {

        public static void Test()

        {

            var parent = new Parent() { Id = 1, Name ="Parent"};        

​

            var output = JsonConvert.SerializeObject(parent, Formatting.None);

​

            Assert.IsTrue(output == "{\"Id\":1}"); //Passes

            var parentDeserialized = JsonConvert.DeserializeAnonymousType(output, parent);

            Assert.IsTrue(parentDeserialized.Id == parent.Id); // Passes

​

            Console.WriteLine(output);

        }   

    }

​

    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;

            }

        }

    }

​