C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (Regex.IsMatch(textBox1.Text, @"[a-zA-z]") == false)
            {
                MessageBox.Show("false - input is numeric.");
            }
            else
            {
                MessageBox.Show("true - input is non-numeric.");
            }
        }
    }
}

System.IO.StreamReader sr = new System.IO.StreamReader("c:\\1.txt");
String Line =  sr.ReadLine();

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
   try
   {
      if (e.KeyChar == (char)Keys.Return) // Catch carriage return from barcode
      {
         e.Handled = true;
         if (validate_data(textBox1.Text.Trim()) == false)
         {
            this.textBox1.Enabled = false;
            switch (MessageBox.Show(" BarCode does not match, Accept BarCode ?",
               "Validate BarCode", MessageBoxButtons.YesNo,
               MessageBoxIcon.Question,
               MessageBoxDefaultButton.Button1))
            {
               case DialogResult.Yes:
                  break;
               case DialogResult.No:
                  break;
            }
         }
      }
   }
   catch (Exception z)
   {
      MessageBox.Show("Error in btnOpenSort_Click" + z);
   }
}

private Boolean validate_data(string scannedData)
{
   return false;
}

kallileo wrote:

Is it possible to read a specific cell or a range of cells from a spreadsheet document?

karthi84 wrote:

at the time of machine logging in