C# XML - XmlNode and XmlAttribute

         public static string TestXML(string path)
         {

             XmlDocument doc = new XmlDocument();
             doc.Load(path);

             XmlNode root = doc.FirstChild;
             ParseXmlNode(root);

             XmlNode nextNode = root.NextSibling;
             while (nextNode != null)
             {
                 ParseXmlNode(nextNode);
                 nextNode = nextNode.NextSibling;
             }

             return "";
         }

         public static void ParseXmlNode(XmlNode root)
         {
             if (root == null)
             {
                 return;
             }

             bool hasChild = root.HasChildNodes;
             if (hasChild)
             {
                 for (int i = ; i < root.ChildNodes.Count; i++)
                 {
                     XmlNode childnode = root.ChildNodes[i];

                     XmlAttributeCollection attrlist = childnode.Attributes;
                     XmlAttribute kifattr = null;
                     string childNodeName = childnode.Name;
                     if (attrlist != null)
                     {
                         kifattr = attrlist["KifSchema"];
                     }
                     if (kifattr != null)
                     {
                         Console.WriteLine(childNodeName + "\t" + kifattr);
                     }

                     ParseXmlNode(childnode);
                 }
             }
             else
             {
                 Console.WriteLine("name is: " + root.Name + "   value is: " + root.InnerText);
                 //Console.WriteLine();
             }
         }