XML generation using XMLDocument

XMLGeneration

using System.Xml;
using System;

namespace SampleXmlTest
{
    public class XmlClass
    {
        static void Main(string[] args)
        {
            try
            {
                XmlDocument docxml = new XmlDocument(); //Creating an XmlDocument
                XmlElement root, rtchild, child;

                XmlNode nodexml = docxml.CreateNode(XmlNodeType.XmlDeclaration, "", "");
                docxml.AppendChild(nodexml);//Adding node to document

                root = docxml.CreateElement("", "Books", ""); //Creating root element
                rtchild = docxml.CreateElement("", "Book", "");//Creating 1st child book element
                
                child = docxml.CreateElement("", "Name", "");
                child.InnerText = "The Last Lecture";
                rtchild.AppendChild(child);

                child = docxml.CreateElement("", "Author", "");
                child.InnerText = "Raundy Paush";
                rtchild.AppendChild(child);

                child = docxml.CreateElement("", "Price", "");
                child.InnerText = "295";
                rtchild.AppendChild(child);

                root.AppendChild(rtchild);//adding 1st child to root element

                rtchild = docxml.CreateElement("", "Book", "");//Creating 2nd child book element

                child = docxml.CreateElement("", "Name", "");
                child.InnerText = "The Secret";
                rtchild.AppendChild(child);

                child = docxml.CreateElement("", "Author", "");
                child.InnerText = "Rhonda Byrne";
                rtchild.AppendChild(child);

                child = docxml.CreateElement("", "Price", "");
                child.InnerText = "660";
                rtchild.AppendChild(child);

                root.AppendChild(rtchild);//adding 2nd child to root element
                docxml.AppendChild(root);//adding root element to document

                docxml.Save(@"D:\SampleXml\books.xml");//Saving the xml into Text file

                Console.WriteLine("Xml Created Successfully");

                //Retrieving the XMl file

                XmlNodeList booklst = docxml.ChildNodes[1].SelectNodes("//Books");
                XmlNodeList book = booklst.Item(0).SelectNodes("//Book");

                string name1 = book[0].SelectNodes("//Name")[0].InnerText;
                string author1 = book[0].SelectNodes("//Author")[0].InnerText;
                string price1 = book[0].SelectNodes("//Price")[0].InnerText;

                string name2 = book[0].SelectNodes("//Name")[1].InnerText;
                string author2 = book[0].SelectNodes("//Author")[1].InnerText;
                string price2 = book[0].SelectNodes("//Price")[1].InnerText;

                Console.WriteLine(name1);
                Console.WriteLine(author1);
                Console.WriteLine(price1);

                Console.WriteLine(name2);
                Console.WriteLine(author2);
                Console.WriteLine(price2);

                Console.ReadLine();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}