C#

isOn = !isOn;
if(isOn)
{
   button.BackColor = Color.Red;//or something
   //code to send 'A' to port
}
else
{
   button.BackColor = Color.Blue;//or something
   //code to send 'a' to port
}

Mads115 wrote:

i need the code. for above application

==lo12365=12/08/05 12.30 lo op
==lo12589=13/08/04 12.15 li oo
==lo89099=18/05/09 12.10 io io

 using System.IO;
namespace WindowsApplication23
{
    public partial class Form1 : Form
    {
        OpenFileDialog o;
        FileInfo info;
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
             o = new OpenFileDialog();
            if (o.ShowDialog() == DialogResult.OK)
            {
                info = new FileInfo(o.FileName);
                label1.Text = info.ToString();
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            StreamReader reader = info.OpenText();
            textBox1.Text = reader.ReadToEnd().ToString();
            reader.Close();
        }
    }
}

StreamReader reader = new StreamReader(info.Filname);

string line = reader.ReadLine();
while(line!= null)
{
   string newLine = line.Replace("=", " ");
   string[] vals = newLine.Split(' ');//use this if you need values seperate for table
   //do something like add newLine to table, or add the string in the vals array
   line = reader.ReadLine();
}

reader.Close();

StreamReader reader = new StreamReader(info.Filname);

StreamReader reader = new StreamReader(o.FileName);

  string line = reader.ReadLine();
            while (line != null)
            {
                string newLine = line.Replace("=", " ");
                string[] vals = newLine.Split(' ');//use this if you need values seperate for table
                //do something like add newLine to table, or add the string in the vals array
                line = reader.ReadLine();
            }
//I add this 
          <big> textBox4.Text = reader.ReadLine();</big>
       reader.Close();

textBox4.Text = reader.ReadLine.ToString();

textBox4.Text = reader.ReadLine.();

yueru wrote:

string line = reader.ReadLine();
   while (line != null)
   {
      string newLine = line.Replace("=", " ");
      string[] vals = newLine.Split(' ');
      line = reader.ReadLine();
   }
//I add this
   textBox4.Text = reader.ReadLine();
   reader.Close();

String inputfilename = "";
 private void Add(){

  StreamReader reader = new StreamReader(inputfilename);
            //MessageBox.Show(inputfilename);

            string line = reader.ReadLine();

            while (line != null)
            {
                string Date = line.Substring(12, 8);
                if (line.Substring(11, 1) == "=")
                {
                    string Time = line.Substring(21, 5);
                    string Linein = line.Substring(27, 10);
                    string Lineout = line.Substring(38, 1);
                    

                    if ((string.Compare(Lineout, "0") > 0 || string.Compare(Lineout, "0") == 0) && (string.Compare(Lineout, "9") < 0 || string.Compare(Lineout, "9") == 0))
                    {
                        //int g = line.Length;
                        //string Number = line.Substring(40, g - 40);
                        string Number = line.Substring(40, 20);
                        string Status = line.Substring(61, 3);
                         string Duration = line.Substring(65, 9);
                          string Cost = line.Substring(75, 3);
                         string Detail = line.Substring(79, 2);
                         string Network = line.Substring(82, 8);
                       // trim whitespace from both ends of the elements

                        string txtSQLQuery = "insert into par values('" + Date + "','" + Time + "','" + Linein + "','" + Lineout + "','" + Number + "','" + Status + "','" + Duration + "','" + Cost + "','" + Detail + "','" + Network + "')";
                        ExecuteQuery(txtSQLQuery);

                        //MessageBox.Show(line);


                        textBox6.Text = textBox6.Text + "\r\n" + Date + " " + Time + " " + Linein + " " + Lineout + " " + Number + " ";
                    }
                    else
                    {
                        textBox5.Text = line + "\r\n" + textBox5.Text;

                    }
                }
                else
                {
                    textBox5.Text = line + "\r\n" + textBox5.Text;
                }
                line = reader.ReadLine();
            }

            MessageBox.Show("End while loop");
        }