static void Main(string[] args) { NFe nFe = new NFe(); CPSysFiscal.NFe.Campos.infNFe infNFe = new CPSysFiscal.NFe.Campos.infNFe(); CPSysFiscal.NFe.Campos.emit emit = new CPSysFiscal.NFe.Campos.emit(); CPSysFiscal.NFe.Campos.ide ide = new CPSysFiscal.NFe.Campos.ide(); emit.CNPJ = "11111111111111"; ide.cUF = "14"; ide.nNF = "000000001"; nFe.emit = emit; nFe.ide = ide; nFe.infNFe = infNFe; string retorno = nFe.getXMLNFe(); Console.WriteLine(retorno); Console.ReadKey(); }