private void btnOpenSerialAutoSteer_Click(object sender, EventArgs e) { mf.SerialPortAutoSteerOpen(); if (mf.spAutoSteer.IsOpen) { cboxASPort.Enabled = false; btnCloseSerialAutoSteer.Enabled = true; btnOpenSerialAutoSteer.Enabled = false; lblCurrentAutoSteerPort.Text = mf.spAutoSteer.PortName; } else { cboxASPort.Enabled = true; btnCloseSerialAutoSteer.Enabled = false; btnOpenSerialAutoSteer.Enabled = true; } }