questions/44652753/xmlserialization-with-xmlanyelement-to-xmlnode-and-order-property

CSharp · Console

/Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;
using System.Xml;
using System.IO;
	
// https://stackoverflow.com/questions/44652753/xmlserialization-with-xmlanyelement-to-xmlnode-and-order-property

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

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

        [XmlElement("nnn", Order = 2)]
        public XmlNodeWrapper [] 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.Select(n => (XmlNodeWrapper)n.ChildNodes).ToArray();
            }
            set
            {
                if (value == null)
                    return;
                qwe = value.Select(tag => tag.InnerText()).ToArray();
            }
        }

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

    [XmlType(AnonymousType = true)]
    public struct XmlNodeWrapper
    {
        public static implicit operator XmlNodeWrapper(XmlNodeList nodes)
        {
            return new XmlNodeWrapper { Nodes = nodes == null ? null : nodes.Cast<XmlNode>().ToArray() };
        }

        public static implicit operator XmlNode[](XmlNodeWrapper wrapper)
        {
            return wrapper.Nodes;
        }

        // Marking the Nodes property with both [XmlAnyElement] and [XmlText] indicates that the node array
        // may contain mixed content (I.e. both XmlElement and XmlText objects).
        // Hat tip: https://stackoverflow.com/questions/25995609/xmlserializer-node-containing-text-xml-text 
        [XmlAnyElement]
        [XmlText]
        public XmlNode[] Nodes { get; set; }

        public string InnerText()
        {
            if (Nodes == null)
                return null;
            return String.Concat(Nodes.Select(n => n.InnerText));
        }
    }

    class TestClass
    {
        public static void Test()
        {
            var a = new A
            {
                aaa = "aaa",
                asd = "asd",
                qwe = new[] { "q", "w", "e" }
            };
            var s = Serialize(a);
            Console.WriteLine(s);

            var ss = Deserialize<A>(s);
            var s2 = Serialize(ss);

            Console.WriteLine(s2);

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

            Assert.IsTrue(s == s2);

            Console.WriteLine();
        }

        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);
            }
        }
    }

    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, "Assertion failed");
        }

        public static void IsTrue(bool value, string message)
        {
            if (value == false)
                throw new AssertionFailedException(message);
        }
    }
				
	public class Program
	{
		public static void Main()
		{
			TestClass.Test();
		}
	}