WPF IO. Using serial port RRS feed

  • Question

  • Hi everybody I have this code below working for a serial device in my WPF application but I'm not able to display the ReadLine in a textbox
    that I want to instead I'm showing that in a messageBox what should I do to display the serialPort.ReadLine in a textbox see the code below and help me how to do this Please help I've tried my best someone please help, thank you everybody.


    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Shapes;
    using System.IO.Ports;
    using System.Threading;







    /// <summary>


    /// Interaction logic for Window1.xaml


    /// </summary>


    public partial class Window1 : Window



    static SerialPort Sp;


    string Message;


    public Window1()







    // Insert code required on object creation below this point.


    //this.PreviewKeyDown += new KeyEventHandler(PortChat);




    private void button1_Click(object sender, RoutedEventArgs e)



    //Create new serialport.

    Sp =

    new SerialPort();


    StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;


    Thread readThread = new Thread(Read);


    //Set the appropriate properties.

    Sp.PortName = SetPortName(Sp.PortName);

    Sp.BaudRate = SetBaudRate(Sp.BaudRate);

    Sp.Parity =


    Sp.DataBits = SetDataBits(Sp.DataBits);

    Sp.StopBits =


    Sp.Handshake =



    //Set the read/write timeouts

    Sp.ReadTimeout = 500;

    Sp.WriteTimeout = 500;




    ComTB.Text = message;

    // The ComTB is a text box and I'm not able to see the string variable


    // message in the intelisence what shoul I do.


    private int SetDataBits(int p)



    int dataBits;

    dataBits = 7;


    return dataBits;



    private int SetBaudRate(int p)



    int baudRate;

    baudRate = 9600;


    return baudRate;



    private string SetPortName(string p)



    string portName;

    portName =



    return portName;



    public static void Read()




    string message = Sp.ReadLine();


    MessageBox.Show(message); /// I want to show this string message in The ComTB above described


    // and I want to convert string in to double So that I could Show.


    // decimal point in the numbers.















    // If you get it a little messed up it's not like this in the Visual Studios 2008 the code is messed up here only I don't know why it's messed
    but the code here is correct and working. 



    • Edited by Smith010 Wednesday, May 27, 2009 3:43 PM
    Tuesday, May 26, 2009 6:16 PM