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;

​

    // https://stackoverflow.com/questions/50484173/deserialize-xml-with-multiple-types

​

    public static class XmlNamespaces

    {

        public const string Crsoftwareinc = "http://www.crsoftwareinc.com/xml/ns/titanium/common/v1_0";

    }

​

    [XmlRoot("field-value", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("field-value", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlInclude(typeof(TextFieldValue)), 

    XmlInclude(typeof(DateFieldValue))]

    public abstract partial class FieldValue

    {

        // It's not necessary to have this in the base class but I usually find it convenient.

        public abstract object GetValue();

    }

​

    [XmlRoot("field-text-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("field-text-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class TextFieldValue : FieldValue

    {

        [XmlElement("value")]

        public string Value { get; set; }

​

        public override object GetValue() { return Value; }

    }

​

    [XmlRoot("field-date-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("field-date-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class DateFieldValue : FieldValue

    {

        [XmlElement("value", DataType = "date")]

        public DateTime Value { get; set; }

​

        public override object GetValue() { return Value; }

    }

​

    // 

​

    [XmlRoot("field", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("field", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class Field

    {

        [XmlAttribute("name")]

        public string Name { get; set; }

​

        [XmlElement("field-value")]

        public FieldValue FieldValue { get; set; }

    }

​

    [XmlRoot("user-defined-data-row", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("user-defined-data-row", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class UserDefinedDataRow

    {

        [XmlElement("field")]

        public List<Field> Fields { get; set; }

    }

​

    // The XML for the root object is not shown so this is just a stub

    [XmlRoot("root", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("root", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class RootObject

    {

        [XmlElement("user-defined-data-row")]

        public List<UserDefinedDataRow> Rows { get; set; }

    }

    //

​

    [XmlRoot("field-decimal-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    [XmlType("field-decimal-valueType", Namespace = XmlNamespaces.Crsoftwareinc)]

    public class DecimalFieldValue : FieldValue

    {

        [XmlElement("value")]

        public decimal Value { get; set; }

​

        public override object GetValue() { return Value; }

    }

​

    [XmlInclude(typeof(DecimalFieldValue))]

    public abstract partial class FieldValue { }

​

    class TestClass

    {

        public static void Test()

        {

            TestDeserialize(GetXml());

            TestSimple();

        }

​

        public static void TestDeserialize(string xml)

        {

            var root = xml.LoadFromXml<RootObject>();

            var xml2 = root.GetXml();

​

            Console.WriteLine("\nDeserialized and re-serialized {0}:", root); 

            Console.WriteLine(xml2);

            XmlAssert.AreEqual(XElement.Parse(xml), XElement.Parse(xml2));

            Console.WriteLine("Original and re-serialized XML are equivalent.");

        }

​

        public static void TestSimple()

        {

            var simple = new RootObject { Rows = new List<UserDefinedDataRow>() { new UserDefinedDataRow() } };

​

            var simpleXml = simple.GetXml();

​

            Console.WriteLine("\nSerialized XML from a simple instance of {0}: ", simple); 

            Console.WriteLine(simpleXml);

        }

​

        static string GetXml()

        {

            var xml = @"<root xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns=""http://www.crsoftwareinc.com/xml/ns/titanium/common/v1_0"">

<user-defined-data-row>

  <field name=""entity"">

    <field-value xsi:type=""field-text-valueType"">

      <value>Test</value>

    </field-value>

  </field>

  <field name=""expiry_date"">

    <field-value xsi:type=""field-date-valueType"">

      <value>2001-10-07</value>

    </field-value>

  </field>

</user-defined-data-row>

</root>

";

            return xml;

        }

    }

​

    public static class XmlAssert

    {

        // https://weblogs.asp.net/marianor/easy-way-to-compare-two-xmls-for-equality

        // https://stackoverflow.com/questions/7318157/best-way-to-compare-xelement-objects

        // Adapted from the answer https://stackoverflow.com/a/14463137 by https://stackoverflow.com/users/1102100/robjohnson

        public static void AreEqual(

            XElement expected,

            XElement actual)

        {

            Assert.IsTrue(XNode.DeepEquals(Normalize(expected), Normalize(actual)));

        }

​

        private static XElement Normalize(XElement element)

        {

            if (element.HasElements)

            {

                return new XElement(

                    element.Name,

                    element.Attributes()

                           .OrderBy(a => a.Name.ToString()),

                    element.Elements()

                           .OrderBy(a => a.Name.ToString())

                           .Select(e => Normalize(e)));

​

            }

​

            if (element.IsEmpty)

            {

                return new XElement(

                    element.Name,

                    element.Attributes()

                           .OrderBy(a => a.Name.ToString()));

            }

​

            return new XElement(element.Name, element.Attributes()

                .OrderBy(a => a.Name.ToString()), element.Value);

        }

    }

​

    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 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 ?? "failed");

        }

    }

    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;

            }

        }

    }

​