Форум программистов [Powered by Invision Power Board]

Код

        public class NodeType1
        {
            public string Value = Guid.NewGuid().ToString();
        }

        public class NodeType2
        {
            public string Value = Guid.NewGuid().ToString();
        }

        public class Root : IXmlSerializable
        {
            public List<NodeType1> Nodes1 = new List<NodeType1> { new NodeType1(), new NodeType1() };
            public List<NodeType2> Nodes2 = new List<NodeType2> { new NodeType2(), new NodeType2() };

            public XmlSchema GetSchema()
            {
                return null;
            }

            public void ReadXml(XmlReader reader)
            {
                Nodes1.Clear();
                Nodes2.Clear();

                if (reader.ReadToFollowing("RootElement"))
                {
                    while (reader.Read())
                    {
                        switch (reader.Name)
                        {
                            case "NodeType1":
                                NodeType1 node1 = new NodeType1();
                                node1.Value = reader["Value"];
                                Nodes1.Add(node1);
                                break;

                            case "NodeType2":
                                NodeType2 node2 = new NodeType2();
                                node2.Value = reader["Value"];
                                Nodes2.Add(node2);
                                break;
                        }
                    }
                }
            }

            public void WriteXml(XmlWriter writer)
            {
                writer.WriteStartElement("RootElement");

                foreach (NodeType1 type1 in Nodes1)
                {
                    writer.WriteStartElement("NodeType1");
                    writer.WriteAttributeString("Value", type1.Value);
                    writer.WriteEndElement();
                }

                foreach (NodeType2 type2 in Nodes2)
                {
                    writer.WriteStartElement("NodeType2");
                    writer.WriteAttributeString("Value", type2.Value);
                    writer.WriteEndElement();
                }

                writer.WriteEndElement();
            }
        }

        static void Main(string[] args)
        {
            Root root = new Root();
            using (Stream stream = new MemoryStream())
            {
                XmlSerializer serializer = new XmlSerializer(typeof (Root));
                serializer.Serialize(stream, root);
                stream.Position = 0;
                root = (Root) serializer.Deserialize(stream);
            }
        }