//引入命名空间
using System;
using System.Xml;
using System.IO;

class Example
{
    static void Main()
    {
        // Create an XmlUrlResolver with default credentials.
        XmlUrlResolver resolver = new XmlUrlResolver();
        resolver.Credentials = System.Net.CredentialCache.DefaultCredentials;

        // Point the resolver at the desired resource and resolve as a stream.
        Uri baseUri = new Uri("http://serverName/");
        Uri fulluri = resolver.ResolveUri(baseUri, "fileName.xml");
        Stream s = (Stream)resolver.GetEntity(fulluri, null, typeof(Stream));

        // Create the reader with the resolved stream and display the data.
        XmlReader reader = XmlReader.Create(s);
        while (reader.Read())
        {
            Console.WriteLine(reader.ReadOuterXml());
        }
    }
}

// Create a resolver with default credentials.
  XmlUrlResolver resolver = new XmlUrlResolver();
  resolver.Credentials = System.Net.CredentialCache.DefaultCredentials;

  // Set the reader settings object to use the resolver.
  settings.XmlResolver = resolver;

  // Create the XmlReader object.
  XmlReader reader = XmlReader.Create("http://ServerName/data/books.xml", settings);

// Create the credentials.
NetworkCredential myCred = new NetworkCredential(UserName,SecurelyStoredPassword,Domain); 
CredentialCache myCache = new CredentialCache(); 
myCache.Add(new Uri("http://www.contoso.com/"), "Basic", myCred); 
myCache.Add(new Uri("http://app.contoso.com/"), "Basic", myCred);

// Set the credentials on the XmlUrlResolver object.
XmlUrlResolver resolver = new XmlUrlResolver();
resolver.Credentials = myCache;

// Compile the style sheet.
XslCompiledTransform xslt = new XslCompiledTransform();
xslt.Load("http://serverName/data/xsl/order.xsl",XsltSettings.Default, resolver);