C# GUI build for UART FT232

[John EE]

I am building a GUI for a UART to communicate to a MC and then to a I/O expander. Right now I have the data going thru the RTS and DTS and my switches monitored by CTS DSR DCD and RI. How could I change this to be implemented to use only TX and RX for all of this without having to start all over. I am not real great with programming but I do know enough to understand. I have included the piece of code that I use for this part.

 #region Initialization
    public enum LEDColor { RedOn, RedOff, GreenOn, GreenOff }

    private bool RTSState = false;
    private bool DTRState = false;
    private bool RingIndicator = false;

    public Form1()
    {
        InitializeComponent();

        pictureBoxRTS.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
        pictureBoxDTR.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
        pictureBoxCTS.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
        pictureBoxDSR.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
        pictureBoxDCD.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
        pictureBoxRI.BackgroundImage = imageList1.Images\[(int)LEDColor.RedOff\];
    }
    #endregion


    #region Modem lines
    // Show the modem states on the virtual LEDs
    private void serialPort1\_PinChanged(object sender, System.IO.Ports.SerialPinChangedEventArgs e)
    {
        // Toggle RI since we can't determine the state with the SerialPort class
        if (e.EventType == SerialPinChange.Ring) RingIndicator = !RingIndicator;

        showCTS\_DSR\_CD();
    }

    private void showCTS\_DSR\_CD()
    {
        if (serialPort1.IsOpen)
        {
            if (serialPort1.CtsHolding) this.pictureBoxCTS.BackgroundImage = this.imageList1.Images\[(int)LEDColor.GreenOn\];
            else this.pictureBoxCTS.BackgroundImage = this.imageList1.Images\[(int)LEDColor.RedOn\];

            if (serialPort1.DsrHolding) this.pictureBoxDSR.BackgroundImage = this.imageList1.Images\[(int)LEDColor.GreenOn\];
            else this.pictureBoxDSR.BackgroundImage = this.imageList1.Images\[(int)LEDColor.RedOn\];

            if (serialPort1.CDHolding) this.pictureBoxDCD.BackgroundImage = this.imageList1.Images\[(int)LEDColor.GreenOn\];
            else this.pictureBoxDCD.BackgroundImage = this.imageList1.Images\[(int)LEDColor.RedOn\];

            if (RingIndicator) this.pict

[John EE]

any help would be good?