A Simple XML Example

   
  

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XmlElement xmlBook;
        XmlAttribute xmlParticipantType;
        XmlElement xmlFirstName;
        XmlElement xmlLastName;

        XmlDocument xmlDoc = new XmlDocument();
        XmlElement xmlBooks = xmlDoc.CreateElement("Books");
        xmlDoc.AppendChild(xmlBooks);

        xmlBook = xmlDoc.CreateElement("Book");

        xmlParticipantType = xmlDoc.CreateAttribute("type");
        xmlParticipantType.InnerText = "Author";
        xmlBook.Attributes.Append(xmlParticipantType);

        xmlFirstName = xmlDoc.CreateElement("FirstName");
        xmlFirstName.InnerText = "J";
        xmlBook.AppendChild(xmlFirstName);

        xmlLastName = xmlDoc.CreateElement("LastName");
        xmlLastName.InnerText = "R";
        xmlBook.AppendChild(xmlLastName);

        xmlBooks.AppendChild(xmlBook);

        xmlBook = xmlDoc.CreateElement("Book");

        xmlParticipantType = xmlDoc.CreateAttribute("type");
        xmlParticipantType.InnerText = "Author";
        xmlBook.Attributes.Append(xmlParticipantType);

        xmlFirstName = xmlDoc.CreateElement("FirstName");
        xmlFirstName.InnerText = "E";
        xmlBook.AppendChild(xmlFirstName);

        xmlLastName = xmlDoc.CreateElement("LastName");
        xmlLastName.InnerText = "B";
        xmlBook.AppendChild(xmlLastName);

        xmlBooks.AppendChild(xmlBook);

        XmlNodeList authorsList = xmlDoc.SelectNodes("Books/Book[@type="Author"]");

        foreach (XmlNode node in authorsList) {
            XmlNode firstName = node.SelectSingleNode("FirstName");
            XmlNode lastName = node.SelectSingleNode("LastName");
            Console.WriteLine("{0} {1}", firstName, lastName);
        }
    }
}