xmlserializationproblem.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Serialization;

namespace TesteSerializacao
{
    class Program
    {
        static void Main(string[] args)
        {
            var a = new A
            {
                aaa = "aaa",
                asd = "asd",
                qwe = new[] {"q", "w", "e"}
            };
            var s = Serialize(a);
            var ss = Deserialize<A>(s);
            var s2 = Serialize(ss);

            Console.WriteLine(s);
            Console.WriteLine(s2);

            Console.WriteLine("Equals: {0};", s == s2);

            Console.ReadKey();
        }

        public static string Serialize<T>(T a)
        {
            var s = new XmlSerializer(typeof(T));
            using (var ms = new MemoryStream())
            {
                using (TextWriter sw = new StreamWriter(ms))
                {
                    s.Serialize(sw, a);
                    ms.Seek(0, 0);
                    using (var sr = new StreamReader(ms))
                    {
                        return sr.ReadToEnd();
                    }
                }
            }
        }

        public static T Deserialize<T>(string a)
        {
            var s = new XmlSerializer(typeof(T));
            var bytes = Encoding.ASCII.GetBytes(a);
            using (var ms = new MemoryStream(bytes))
            {
                return (T) s.Deserialize(ms);
            }
        }
    }

    [XmlRoot]
    [Serializable]
    public class A
    {
        [XmlElement("asd", Order=1)]
        public string asd { get; set; }

        [XmlIgnore]
        public string[] qwe { get; set; }

        [XmlAnyElement("nnn", Order=2)]
        public XmlNode[] nnn
        {
            get
            {
                if (qwe == null) return null;

                var xml = new XmlDocument();
                var nodes = new List<XmlNode>(qwe.Length);

                foreach (var q in qwe)
                {
                    var nnnTag = xml.CreateNode(XmlNodeType.Element, "nnn", null);
                    nnnTag.InnerText = q;
                    nodes.Add(nnnTag);
                }

                return nodes.ToArray();
            }
            set
            {
                if (value == null) return;
                qwe = value.Select(tag => tag.InnerText).ToArray();
            }
        }

        [XmlElement("aaa", Order=3)]
        public string aaa { get; set; }
    }
}