SqlConnection con = new SqlConnection("integrated security=true; database=gopidb; server=localhost");
        SqlDataAdapter da = new SqlDataAdapter("select * from emp", con);
        DataSet ds = new DataSet();
        da.Fill(ds);

        GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();



protected void GridView1_SelectedIndexChanged1(object sender, EventArgs e)
               -------------------------------     
 {
        
        DataSet ds1 = new DataSet();
       

        int k = GridView1.SelectedIndex;
        int m = 0;
        string s = "";
        while (m < 4)
        {
            s += "  ";
            s += ds1.Tables[0].Rows[k][m].ToString();
            m++;
        }

        Response.Write(s);
    }