C#

        private void btnValidate_Click(object sender, EventArgs e)
        {
            int pcode = 0;

            if (int.TryParse(txtboxPcode.Text, out pcode) == false)
            {
                MessageBox.Show("Invalid Integer!");
                return;
            }
            if((pcode >= 4731) && (pcode <=6499))

            {
                MessageBox.Show("Eastern Cape");
                return;
            }
            if ((pcode >= 9300) && (pcode <= 9999))
                {
                MessageBox.Show("Free State");
                return;
                }
}

private void btnOpenFile_Click(object sender, EventArgs e)
{
    if (openFileDialog1.ShowDialog() != DialogResult.OK)
    {
        this.Close();
    }
    else
    {
        txtboxSelectFile.Text = openFileDialog1.FileName;
    }
    string filePath;
    filePath = txtboxSelectFile.Text;

    FileHelperEngine<CsvImp> engine = new FileHelperEngine<CsvImp>();

    engine.ErrorManager.ErrorMode = ErrorMode.SaveAndContinue;

    CsvImp[] res = engine.ReadFile(filePath);

    if (engine.ErrorManager.ErrorCount > 0)
        engine.ErrorManager.SaveErrors("Errors.txt");
        foreach (CsvImp imp in res)
        {
            txtboxDisplay.Text += imp.CompanyCode + "\t" + imp.Caller + "\t" +
                imp.Reference + "\t" + imp.Agent + "\t" + imp.CallComments + Environment.NewLine;
        }
    }

<br />
DataTable dtListValues = null; //this is my DataTable where i'm going to store the Data<br />
dtListValues = LoValues.oListValues(Values.PKValue); //this is the method to get the Data, that returns a DataTable<br />
this.rgValues.DataSource = dtListValues; //Choosing  a DataSource for the RadGrid<br />
this.rgValues.DataBind(); //binding!! hehehe!  ;P <br />

<br />
dtListValues.Columns[0].Caption = "Code";<br />
dtListValues.Columns[1].Caption = "Name";<br />
dtListValues.Columns[2].Caption = "Active";<br />