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 System.Collections.ObjectModel;

using System.Runtime.Serialization;

using System.Runtime.Serialization.Formatters.Binary;

​

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/60317731/how-to-correctly-serialize-exceptions-in-net-4-7-x-and-net-standard-2-x

​

    [Serializable]

    public class FooException : Exception{

​

        readonly int m_fooValue;

​

        public FooException(string message, int fooValue, Exception innerException = null) : base(message, innerException) {

            m_fooValue = fooValue;

        }

​

        //[System.Security.SecuritySafeCritical]

        protected FooException(SerializationInfo info, StreamingContext context) : base(info, context) {

            m_fooValue = info.GetInt32("m_fooValue");

        }

​

        //[System.Security.SecurityCritical]      

        public override void GetObjectData(SerializationInfo info, StreamingContext context) {

            if (info == null) throw new ArgumentNullException("info");

            info.AddValue("m_fooValue", m_fooValue);

            base.GetObjectData(info, context);

        }

​

        public int FooValue { get { return m_fooValue; } }

    }

​

    public static partial class BinaryFormatterHelper

    {

        public static byte[] ToBinary<T>(T obj)

        {

            using (var stream = new MemoryStream())

            {

                new BinaryFormatter().Serialize(stream, obj);

                return stream.ToArray();

            }

        }

​

        public static T FromBinary<T>(byte[] data)

        {

            using (var stream = new MemoryStream(data))

            {

                var formatter = new BinaryFormatter();

                var obj = formatter.Deserialize(stream);

                return (T)obj;

            }

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            try

            {

                throw new FooException("my message", 101);

            }

            catch (FooException ex)

            {

                var bytes = BinaryFormatterHelper.ToBinary(ex);

                var ex2 = BinaryFormatterHelper.FromBinary<FooException>(bytes);

                Assert.IsTrue(ex.FooValue == ex2.FooValue);

            }

        }   

    }

​

    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;

            }

        }

    }

​