System.Xml.XmlNodeReader.GetAttribute C# (CSharp) Method

        public override string GetAttribute(int attributeIndex) {
            if ( !IsInReadingStates() )
                throw new ArgumentOutOfRangeException( "attributeIndex" );
            //CheckIndexCondition( i );
            //Debug.Assert( nav.NodeType == XmlNodeType.Element );
            return readerNav.GetAttribute( attributeIndex );
        }

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 public bool isSuper(FileInfo obFile, FileInfo obExtends)
 {
     string infoPath = m_obFinder.getClassPath(obExtends.Name.Replace(".as", ""));
     if (File.Exists(infoPath))
     {
         XmlDocument xml = new XmlDocument();
         xml.Load(infoPath);
         XmlNodeReader reader = new XmlNodeReader(xml);
         while (reader.Read())
         {
             if (reader.NodeType == XmlNodeType.Element)
             {
                 if (reader.Name == "item")
                 {
                     string className = reader.GetAttribute("name");
                     string superSign = reader.GetAttribute("super");
                     if (className == obFile.Name.Replace(".as", ""))
                     {
                         if (superSign != null)
                         {
                             reader.Close();
                             //ErrorBox.Show(obExtends.Name + " extends " + obFile.Name,"ClassRelationsFinderError");
                             return true;
                         }
                     }
                 }
             }
         }
     }
     return false;
 }