//Usata quando viene premuto il tasto send private void btnCommand_Click(object sender, EventArgs e) { byte[] command = { (byte)System.Enum.Parse(typeof(Param.Commands), cboCommand.SelectedValue.ToString(), false), 0x00 }; try { if (((Param.Commands)command[0]) == Param.Commands.START) { isStarted = true; syncPolling.sveglia(); } else { isStarted = false; } ComPort.Write(command, 0, 2); } catch (System.InvalidOperationException) { MessageBox.Show("Hai dimenticato di Aprire la Connessione", "Errore", MessageBoxButtons.OK, MessageBoxIcon.Error); } catch (System.IO.IOException) { MessageBox.Show("Errore comunicazione", "Errore", MessageBoxButtons.OK, MessageBoxIcon.Error); } }