.Net

Hi Rajeev,


Try


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.Data.OleDb;
namespace Datagridview_select_textbox_data
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oledbda;
        string str;

        DataSet ds;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            bindgrid();
        }
        private void bindgrid()
        {
            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select * from employee";
            com = new OleDbCommand(str, con);
            oledbda = new OleDbDataAdapter(com);
            ds = new DataSet();
            oledbda.Fill(ds, "employee");
            dataGridView1.DataMember = "employee";
            dataGridView1.DataSource = ds;
            con.Close();
        }

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
          
            txt_sno.Text = "";
            bool FirstValue = true;
            foreach (DataGridViewCell cell in dataGridView1.SelectedCells)
            {
                if (!FirstValue)
                {
                    txt_sno.Text += ", ";
                }
                txt_sno.Text += cell.Value.ToString();
                FirstValue = false;
            }

        }

     
    }
}



Thanks