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.Data;

using System.Runtime.Serialization;

using System.Runtime.Serialization.Formatters.Binary;

using System.IO.Compression;

​

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

​

//https://stackoverflow.com/questions/57257468/net-is-it-possible-to-use-both-xmlanyelementattribute-and-xmlserializer-unkno

​

    [XmlRoot(ElementName="CategoryInfo")]

    public class CategoryInfo 

    {

        [XmlElement(ElementName="ToolTip")]

        public string ToolTip { get; set; }

        [XmlElement(ElementName="SearchTerm")]

        public string SearchTerm { get; set; }

        [XmlAttribute(AttributeName="Name")]

        public string Name { get; set; }

        [XmlAttribute(AttributeName="Type")]

        public string Type { get; set; }

        [XmlAttribute(AttributeName="Persistence")]

        public string Persistence { get; set; }

    }

​

    [XmlRoot(ElementName="ListeCategoriesExt")]

    public class ListeCategoriesExt 

    {

        [XmlElement(ElementName="CategoryInfo")]

        public List<CategoryInfo> CategoryInfo { get; set; }

    }

​

    [XmlRoot(ElementName="OptionsSerializable")]

    public class OptionsSerializable 

    {

        [XmlAnyElement("ListeCategories")]

        public XmlElement [] ListeCategories { get; set; }

​

        [XmlElement(ElementName="ListeCategoriesExt")]

        public ListeCategoriesExt ListeCategoriesExt { get; set; }

    }

​

    public class TestClass

    {

        public static void Test()

        {

            var xml = GetXml();

            var serializer = new XmlSerializer(typeof(OptionsSerializable));

            serializer.UnknownElement += (s, e) => { Console.WriteLine("Called with node {0}", e.Element.GetOuterXml()); };

            var root = xml.LoadFromXml<OptionsSerializable>(serializer);

            var xml2 = root.GetXml();

            Console.WriteLine(xml2);

        }

        static string GetXml()

        {

            var xml = @"<OptionsSerializable xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"">

  <SomeOtherObsoleteNodeToPostprocess />

  <ListeCategories>

    <string>SX00</string>

    <string>SX01</string>

  </ListeCategories>

  <ListeCategoriesExt>

    <CategoryInfo Name=""VerifierCoherence"" Type=""Principal"" Persistence=""Global"">

      <ToolTip>VerifierCoherence</ToolTip>

      <SearchTerm>VerifierCoherence</SearchTerm>

    </CategoryInfo>

    <CategoryInfo Name=""SX00"" Type=""Principal"" Persistence=""Global"">

      <ToolTip>SX00</ToolTip>

      <SearchTerm>SX00</SearchTerm>

    </CategoryInfo>

    <CategoryInfo Name=""SX01"" Type=""Principal"" Persistence=""Global"">

      <ToolTip>SX01</ToolTip>

      <SearchTerm>SX01</SearchTerm>

    </CategoryInfo>

  </ListeCategoriesExt>

</OptionsSerializable>";

            return xml;

        }

    }

​

    public static class XmlSerializationHelper

    {

        public static T LoadFromXml<T>(this string xmlString, XmlSerializer serial = null)

        {

            serial = serial ?? new XmlSerializer(typeof(T));

            using (var reader = new StringReader(xmlString))

            {

                return (T)serial.Deserialize(reader);

            }

        }

​

        public static string GetXml<T>(this T obj, bool omitStandardNamespaces)

        {

            return obj.GetXml(null, omitStandardNamespaces);

        }

        public static string GetXml<T>(this T obj, XmlSerializer serializer = null, bool omitStandardNamespaces = false)

        {

            XmlSerializerNamespaces ns = null;

            if (omitStandardNamespaces)

            {

                ns = new XmlSerializerNamespaces();

                ns.Add("", ""); // Disable the xmlns:xsi and xmlns:xsd lines.

            }           

            using (var textWriter = new StringWriter())

            {

                var settings = new XmlWriterSettings() { Indent = true }; // For cosmetic purposes.

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

                    (serializer ?? new XmlSerializer(obj.GetType())).Serialize(xmlWriter, obj, ns);

                return textWriter.ToString();

            }

        }

        public static string GetOuterXml(this XmlNode node, bool indent = true)

        {

            if (node == null)

                return null;

            using (var textWriter = new StringWriter())

            {

                var settings = new XmlWriterSettings

                {

                    Indent = indent,

                    OmitXmlDeclaration = true,

                };

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

                {

                    node.WriteTo(xmlWriter);

                }

                return textWriter.ToString();

            }

        }

    }

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Roslyn 2.0 Compiler; Environment version: " + Environment.Version);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Uncaught exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​