XML C#

using System;
using System.IO;
using System.Xml;
using System.Xml.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass{
   public static void Main(){
        XmlReaderSettings settings = new XmlReaderSettings();
        settings.IgnoreComments = true;
        settings.IgnoreProcessingInstructions = true;
        settings.IgnoreWhitespace = true;
        
        XmlUrlResolver resolver = new XmlUrlResolver();
        resolver.Credentials = System.Net.CredentialCache.DefaultCredentials;
        
        settings.XmlResolver = resolver;
        
        XmlReader reader = XmlReader.Create("http://ServerName/data/books.xml", settings);
    }
}