using System;

using System.Collections.Generic;

using System.Text;

using System.Linq;

using System.Xml.Serialization;

using System.Xml;

using System.Xml.Linq;

using System.IO;

using System.Runtime.Serialization;

using System.Reflection;

​

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

​

//https://stackoverflow.com/questions/68756740/deserialization-to-poco-from-json-created-of-xml-document-does-not-work-with-arr

​

    [DataContract(Name = "Person", Namespace = "http://schemas.datacontract.org/2004/07/Workflows.MassTransit.Hosting.Serialization")]

    public sealed class Person

    {

        [DataMember]

        public string Name { get; set; }

​

        [DataMember]

        public List<int> Numbers { get; set; }

    }

​

    public static partial class DataContractSerializerHelper

    {

        public static string ToContractXml<T>(this T obj, DataContractSerializer serializer = null, XmlWriterSettings settings = null)

        {

            serializer = serializer ?? new DataContractSerializer(obj == null ? typeof(T) : obj.GetType());

            using (var textWriter = new StringWriter())

            {

                settings = settings ?? new XmlWriterSettings { Indent = true };

                using (var xmlWriter = XmlWriter.Create(textWriter, settings))

                {

                    serializer.WriteObject(xmlWriter, obj);

                }

                return textWriter.ToString();

            }

        }

​

        public static T FromContractXml<T>(string xml, DataContractSerializer serializer = null)

        {

            using (var textReader = new StringReader(xml ?? ""))

            using (var xmlReader = XmlReader.Create(textReader))

            {

                return (T)(serializer ?? new DataContractSerializer(typeof(T))).ReadObject(xmlReader);

            }

        }

    }

​

    public class TestClass

    {

        public static void Test()

        {

            var xml = GetXml();

            var person = DataContractSerializerHelper.FromContractXml<Person>(xml);

            Assert.IsTrue(person.Numbers.SequenceEqual(new [] { 1, 2, 3 }));

            person.Dump();

            var xml2 = DataContractSerializerHelper.ToContractXml(person);

            Console.WriteLine("Re-serialized {0}:", person);

            Console.WriteLine(xml2);

            Assert.IsTrue(XNode.DeepEquals(XElement.Parse(xml), XElement.Parse(xml2)));

        }

        static string GetXml() => @"<Person xmlns:i=""http://www.w3.org/2001/XMLSchema-instance"" xmlns=""http://schemas.datacontract.org/2004/07/Workflows.MassTransit.Hosting.Serialization"">

    <Name>Test</Name>

    <Numbers xmlns:d2p1=""http://schemas.microsoft.com/2003/10/Serialization/Arrays"">

        <d2p1:int>1</d2p1:int>

        <d2p1:int>2</d2p1:int>

        <d2p1:int>3</d2p1:int>

    </Numbers>

</Person>";

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

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

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​