private void btnOpenSerial_Click(object sender, EventArgs e) { mf.OpenGPSPort(); if (mf.spGPS.IsOpen) { cboxBaud.Enabled = false; cboxPort.Enabled = false; btnCloseSerial.Enabled = true; btnOpenSerial.Enabled = false; lblCurrentBaud.Text = mf.spGPS.BaudRate.ToString(); lblCurrentPort.Text = mf.spGPS.PortName; } else { cboxBaud.Enabled = true; cboxPort.Enabled = true; btnCloseSerial.Enabled = false; btnOpenSerial.Enabled = true; } }