How to count # of rows in XML document

I have a application that creates an XML doucment.  How can get the number of XML rows that were created in the XML document?  

XmlDocument xd;
XmlDeclaration xdec;
XmlElement xeTEST;
xdec = xd.CreateXmlDeclaration("1.0", "utf-8", null);
xd.InsertBefore(xdec, xd.DocumentElement);
xeTEST = xd.CreateElement("Test");
 xd.AppendChild(xeTEST);

? Need the number of XML rows.