private void validateCFDI(CFDi cfdi) { CFDiDAO cfdiDAO = new CFDiDAO(); cfdi.xml = cfdiDAO.getCFDIXml(cfdi.idFolio); if (cfdi.xml != null && cfdi.xml != "") { CfdiXmlBuilder xmlBuilder = new CfdiXmlBuilder(); xmlBuilder.obtenerDatosTimbre(cfdi); if (cfdi.folioFiscal != null && cfdi.folioFiscal.Length == 36) { sendMail(cfdi); } else { createCFDI(cfdi); } } }