using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml.Serialization;

using System.Xml;

using System.IO;

using System.Diagnostics;

using System.Collections.ObjectModel;

using System.Threading;

using System.ComponentModel;

using System.Xml.Linq;

using System.Reflection;

using System.Data;

using System.Xml.Schema;

using System.Text.RegularExpressions;

using System.Net;

using System.Xml.XPath;

using System.Globalization;

using System.ComponentModel.DataAnnotations;

using System.Collections;

using System.Runtime.InteropServices;

using System.Runtime.Serialization;

​

    [XmlRoot("Comprobante", Namespace = "http://cfdi")]

    public class Comprobante : IValidatableObject

    {

        [Required]

        [XmlArray("Conceptos"), XmlArrayItem(typeof(Concepto), ElementName = "Concepto")]

        public List<Concepto> Conceptos { get; set; }

​

        public Addenda Addenda { get; set; }

    }

​

    public class Addenda

    {

        [XmlAnyElement]

        [XmlText]

        public XmlNode[] Nodes { get; set; }

    }

​

    [XmlType("Concepto", Namespace = "http://cfdi")]

    public class Concepto

    {

    }

​

    public interface IValidatableObject

    {

    }

​

    class TestClass

    {

        public static void Test()

        {

            foreach (var xml in GetXml())

            {

                var comprobante = xml.LoadFromXml<Comprobante>();

​

                var xml2 = comprobante.GetXml(xml.ExtractRootNamespaces());

​

                Console.WriteLine("\nRe-serialized XML: ");

                Console.WriteLine(xml2);

​

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

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

            }

​

            Console.WriteLine("\nDone tests.");

        }

​

        static string[] GetXml()

        {

            var xml = new[]

            {

@"<cfdi:Comprobante xmlns:cfdi=""http://cfdi"">

      <cfdi:Conceptos />

      <cfdi:Addenda>

        <bfa2:AddendaBuzonFiscal version=""2.0"" xmlns:bfa2=""http://www.buzonfiscal.com/ns/addenda/bf/2""><bfa2:TipoDocumento nombreCorto=""FAC"" descripcion=""Factura""/><bfa2:CFD totalConLetra=""CINCUENTA Y DOS MIL QUINIENTOS OCHENTA Y NUEVE PESOS 64/100 M.N."" observaciones=""OBSERVACIONES""/><bfa2:Extra atributo=""ClaveTransportista"" valor=""00328""/><bfa2:Extra atributo=""NoRelacionPemex"" valor=""1-2""/>

        <bfa2:Extra atributo=""NoConvenio"" valor=""5""/>

        </bfa2:AddendaBuzonFiscal>

        <Encabezado NumOrden="""" NumFacturaOriginal="""" FechaDePedido=""""/>

        <Envio Calle="""" NoExterior="""" Colonia="""" Localidad="""" Municipio="""" Estado="""" Pais="""" CodigoPostal="""" NombreEnviar=""""/><Detalle OrdenCompraLinea=""10"" GRNumber=""GRN""/><Detalle OrdenCompraLinea=""10"" GRNumber=""GRN""/><Detalle OrdenCompraLinea=""10"" GRNumber=""GRN""/>

      </cfdi:Addenda>

    </cfdi:Comprobante>",

​

@"<cfdi:Comprobante xmlns:cfdi=""http://cfdi"">

      <cfdi:Conceptos />

      <cfdi:Addenda>Hello this is some simple text for Addenda</cfdi:Addenda>

    </cfdi:Comprobante>",

​

@"<cfdi:Comprobante xmlns:cfdi=""http://cfdi"">

      <cfdi:Conceptos />

      <cfdi:Addenda>This is some mixed content<Foo>This is nested mixed content</Foo>This is the end of the mixed content.</cfdi:Addenda>

    </cfdi:Comprobante>",

            };

            return xml;

        }

    }

​

    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 static partial 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)

        {

            return obj.GetXml(serializer, false);

        }

        public static string GetXml<T>(this T obj, XmlSerializerNamespaces ns)

        {

            return GetXml(obj, new XmlSerializer(obj.GetType()), ns);

        }

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

        {

            XmlSerializerNamespaces ns = null;

            if (omitStandardNamespaces)

            {

                ns = new XmlSerializerNamespaces();

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

            }

            return obj.GetXml(serializer, ns);

        }

        public static string GetXml<T>(this T obj, XmlSerializer serializer, XmlSerializerNamespaces ns)

        {

            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 partial class XmlSerializationHelper

    {

        public static XmlSerializerNamespaces ExtractRootNamespaces(this string xml)

        {

            var ns = new XmlSerializerNamespaces();

            using (var reader = XmlReader.Create(new StringReader(xml)))

            {

                while (reader.Read())

                    if (reader.NodeType == XmlNodeType.Element)

                    {

                        while (reader.MoveToNextAttribute())

                        {

                            if (reader.Name == "xmlns")

                            {

                                ns.Add("", reader.Value);

                            }

                            else if (reader.Name.StartsWith("xmlns:"))

                            {   

                                ns.Add(reader.Name.Substring("xmlns:".Length), reader.Value);

                            }

                        }

                        break;

                    }

            }

            return ns;

        }

    }   

​

    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;

            }

        }

    }

​