protected void Button3_Click(object sender, EventArgs e)
 {
     try
     {
         bl.ld_nm     = TextBox1.Text;
         bl.grp_id    = Convert.ToInt32(dwd_grp.SelectedValue.ToString());
         bl.ld_remark = TextBox2_remark.Text;
         dl.insert_ledger(bl);
         ScriptManager.RegisterStartupScript(this, this.GetType(), "redirect", "alert('Ledger Created successfully'); window.location='company_list.aspx';", true);
     }
     catch
     {
     }
 }