private void openConection() { try { if (Properties.Settings.Default.nameCOM != "") { SerialPorts.OpenConection(ref CodeReader, Properties.Settings.Default.nameCOM, Properties.Settings.Default.baudRate, Properties.Settings.Default.parity, Properties.Settings.Default.dataBit); CodeReader.DataReceived += new SerialDataReceivedEventHandler(ReaderCOde_Event); } else { MessageBox.Show("Selecione uma Porta COM", "Porta Serial"); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }