using System;

using System.Xml;

using System.IO;

using System.Xml.Linq;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {      

        datosXML c = new datosXML();

        XDocument xmlTree = XDocument.Load(@".\" + c.NombreArchivo);

        /*  Listo!!!!

        XElement hijo = xmlTree.Descendants("City").First();

        XElement padre = hijo.Parent;

        XElement abuelo = xmlTree.Descendants(padre.Name).First();

        XElement raiz = abuelo.Parent;

        Console.WriteLine(padre.Name);

        Console.WriteLine(raiz.Name);

        Console.WriteLine(xmlTree.Root.Name.ToString());  //Solo funciona con XDocument -- No XElement

        */

​

    }

}

public class datosXML

{

    public datosXML()

    {

        cargar();

    }

    public void cargar()

    {

        File.WriteAllText(@".\" + this.NombreArchivo,

                        @"<?xml version='1.0'?>  

                          <PurchaseOrder PurchaseOrderNumber='99503' OrderDate='1999-10-20'>  

                            <Address Type='Shipping'>  

                                <Name>Ellen Adams</Name>  

                                <Street>123 Maple Street</Street>  

                                <City>Mill Valley</City>  

                                <State>CA</State>  

                                <Zip>10999</Zip>  

                                <Country>USA</Country>  

                            </Address>  

                            <Address Type='Billing'>  

                                <Name>Tai Yee</Name>  

                                <Street>8 Oak Avenue</Street>  

                                <City>Old Town</City>  

                                <State>PA</State>  

                                <Zip>95819</Zip>  

                                <Country>USA</Country>  

                            </Address>  

                            <DeliveryNotes>Please leave packages in shed by driveway.</DeliveryNotes>  

                            <Items>  

                              <Item PartNumber='872-AA'>  

                                <ProductName>Lawnmower</ProductName>  

                                <Quantity>1</Quantity>  

                                <USPrice>148.95</USPrice>  

                                <Comment>Confirm this is electric</Comment>  

                             </Item>  

                                <Item PartNumber='926-AA'>  

                                <ProductName>Baby Monitor</ProductName>  

                                <Quantity>2</Quantity>  

                                <USPrice>39.98</USPrice>  

                                <ShipDate>1999-05-21</ShipDate>  

                            </Item>  

                        </Items>  

                    </PurchaseOrder>"); 

    }

    private string nombreArchivo = "datos.xml";

    public string NombreArchivo

    {

        get{return this.nombreArchivo;}

    }

}