Return the value for the specific attribute using XPathNodeIterator

<?xml version="1.0" encoding="utf-8" ?>

<users>

  <user FirstName="Tom" LastName="Adams" Age="23" />

  <user FirstName="Jhon" LastName="Brams" Age="17" />

  <user FirstName="Bill" LastName="Smith" Age="33" />

</users>

// Read the xml from resource file 

string xml = Resources.Users; 

using (StringReader sr = new StringReader(xml)) 

{ 

    XPathDocument document = new XPathDocument(sr); 

    XPathNavigator navigator = document.CreateNavigator(); 

    XmlNamespaceManager ns = new XmlNamespaceManager(navigator.NameTable); 

    //Selects all the user nodes of the users node that 

    // have an age with a value greater than 17  

    XPathNodeIterator it = navigator.Select("/users/user[@Age>17]"); 

    while (it.MoveNext()) 

    { 

        // access the atributes  

        string firstName = it.Current.GetAttribute("FirstName", ns.DefaultNamespace); 

        string lastName = it.Current.GetAttribute("LastName", ns.DefaultNamespace); 

        // Print out  

        Console.WriteLine( "{0} {1}", firstName, lastName ); 

    } 

}