using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.IO;

using System.Threading;

using System.Collections.ObjectModel;

using System.Reflection;

using System.Runtime.Serialization;

using System.Data;

using System.ComponentModel;

using System.Globalization;

using System.Collections.Specialized;

using System.Text.RegularExpressions;

using System.Net;

using System.Xml;

using System.Xml.Serialization;

using System.Xml.Linq;

​

​

// https://stackoverflow.com/questions/43955541/serializing-a-class-with-a-generic-enum-that-can-be-different-enum-types

​

    // Include all possible types of Enum that might be serialized

    [XmlInclude(typeof(Enummies.BigMethods))]

    [XmlInclude(typeof(Enummies.SmallMethods))]

    public class TESTCLASS

    {

        private Enum _MethodType;

​

        // Surrogate object property for MethodObject required by XmlSerializer

        [XmlElement(Order = 1, ElementName = "MethodType")]

        [Browsable(false), EditorBrowsable(EditorBrowsableState.Never), DebuggerBrowsable(DebuggerBrowsableState.Never)]

        public object MethodTypeObject

        {

            get { return MethodType; }

            set { MethodType = (Enum)value; }

        }

​

        // Ignore the Enum member that cannot be serialized directly

        [XmlIgnore]

        public Enum MethodType

        {

            get { return _MethodType; }

            set { _MethodType = value; }

        }

        public TESTCLASS() { }

​

        public TESTCLASS(Enummies.BigMethods bigM)

        {

            MethodType = bigM;

        }

        public TESTCLASS(Enummies.SmallMethods smallM)

        {

            MethodType = smallM;

        }

    }

​

    public class Enummies

    {

        public enum BigMethods { BIG_ONE, BIG_TWO, BIG_THREE }

        public enum SmallMethods { SMALL_ONE, SMALL_TWO, SMALL_THREE }

    }

​

    class TestClass

    {

        public static void Test()

        {

            Test(Enummies.BigMethods.BIG_THREE);

            Test(Enummies.SmallMethods.SMALL_TWO);

        }

​

        public static void Test(Enum value)

        {

            Console.WriteLine("Testing: " + value);

            var root = new TESTCLASS { MethodType = value };

            var xml = root.GetXml();

            var root2 = xml.LoadFromXml<TESTCLASS>();

            var xml2 = root2.GetXml();

            Assert.IsTrue(root.MethodType.Equals(root2.MethodType));

            Console.WriteLine(xml2);

            Console.WriteLine();

        }

    }

​

    public class Program

    {

        public static void Main()

        {

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

            Console.WriteLine("");

            TestClass.Test();       

        }

    }

​

    public static class XmlSerializationHelper

    {

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

        {

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

            T returnValue = default(T);

            using (StringReader reader = new StringReader(xmlString))

            {

                object result = serial.Deserialize(reader);

                if (result is T)

                {

                    returnValue = (T)result;

                }

            }

            return returnValue;

        }

​

        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 class AssertionFailedException : System.Exception

    {

        public AssertionFailedException() : base() { }

​

        public AssertionFailedException(string s) : base(s) { }

    }

​

    public static class Assert

    {

        public static void IsTrue(bool value)

        {

            IsTrue(value, "failed");

        }

​

        public static void IsTrue(bool value, string message)

        {

            if (value == false)

                throw new AssertionFailedException(message);

        }

    }

​