string retCsRPS = string.Empty; if (cklTrans.GetItemChecked(1) & (go == true)) if (nProt != string.Empty) { go = false; txtLogTrans.Text += "Método: nfse.WsConsultaLoteRps.\r\n"; txtLogTrans.Text += "5 segundos de espera, aguarde.\r\n"; Application.DoEvents(); Thread.Sleep(5000); retCsRPS = nfse.WsConsultaLoteRps(nProt); txtLogTrans.Text += "#RETORNO: " + retCsRPS + "\r\n\r\n"; }