using System;
using System.Linq;
using System.Xml;
using System.Xml.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml.XPath;
public class MainClass{
public static void Main(){
XPathDocument document = new XPathDocument("books.xml");
XPathNavigator navigator = document.CreateNavigator();
XPathNodeIterator nodes = navigator.SelectDescendants("book", "", false);
XPathExpression expr = navigator.Compile("book[@genre='data']");
while (nodes.MoveNext())
{
XPathNavigator navigator2 = nodes.Current.Clone();
if (navigator2.Matches(expr))
{
navigator2.MoveToFirstChild();
Console.WriteLine("Book title: {0}", navigator2.Value);
}
}
}
}