load xml file with particular atribute wise

              XPathDocument doc = new XPathDocument(fileName);
                XPathNavigator nav = doc.CreateNavigator();
                XPathExpression expr;
                expr = nav.Compile("/ATLAS/TP[@VERSION='"+VersionNumber+"']");
                XPathNodeIterator iterator = nav.Select(expr);//here xml file is null
                
                    DataTable dt= new DataTable();
                    while (iterator.MoveNext())//here only xm file loaded accourding to Version
                    {
                       //iterator.Current.Innerxml having  VERSION attribute wise  xml file.
                      //Now how to bind this xml file in Datatable dt.