DynamicXMLNode

using System;
using System.Dynamic;
using System.Reflection;
using System.Xml.Linq;

namespace Core.Dynamic {
    /*
//Example
using System;
using Core.Dynamic;

namespace ConsoleApplication1 {
    class Program {
        static void Main(string[] args) {

            dynamic contact = new DynamicXMLNode("Contacts");

            contact.Name = "Patrick Jones";
            contact.Phone = "202-555-0487";
            contact.Address = new DynamicXMLNode();
            contact.Address.Street = "123 Main St";
            contact.Address.City = "Houston";
            contact.Address.State = "TX";
            contact.Address.Postal = "77001";

            Console.WriteLine(contact);
        }
    }
}
     */
    public class DynamicXMLNode:DynamicObject {

        public static XElement ToXml(DynamicXMLNode dnode) {
            return dnode.node;
        }

        readonly XElement node;

        public DynamicXMLNode() { }

        public DynamicXMLNode(XElement node) {
            this.node = node;
        }

        public DynamicXMLNode(String name) {
            node = new XElement(name);
        }

        public override string ToString() {
            return node.ToString(SaveOptions.None);
        }

        public override bool TryConvert(ConvertBinder binder,out object result) {
            if(binder.Type == typeof(String)) {
                result = node.Value;
                return true;
            }
            else {
                result = node;
                return true;
            }
        }

        public override bool TryInvokeMember(InvokeMemberBinder binder,
            object[] args,
            out object result) {

            Type xmlType = typeof(XElement);
            try {
                result = xmlType.InvokeMember(
                          binder.Name,
                          BindingFlags.InvokeMethod |
                          BindingFlags.Public |
                          BindingFlags.Instance,
                          null,node,args);
                return true;
            }
            catch {
                result = null;
                return false;
            }
        }
        public override bool TrySetMember(
            SetMemberBinder binder,object value) {
            XElement setNode = node.Element(binder.Name);
            if(setNode != null)
                setNode.SetValue(value);
            else {
                if(value.GetType() == typeof(DynamicXMLNode))
                    node.Add(new XElement(binder.Name));
                else
                    node.Add(new XElement(binder.Name,value));
            }
            return true;
        }

        public override bool TryGetMember(
            GetMemberBinder binder,out object result) {
            XElement getNode = node.Element(binder.Name);
            if(getNode != null) {
                result = new DynamicXMLNode(getNode);
                return true;
            }
            else {
                result = null;
                return false;
            }
        }
    }
}