protected void recharge_click(object sender, EventArgs e)
{
li.rcg = cardid.Text;
DataTable dt = li.archg(li);
string user = dt.Rows[0]["user_name"].ToString();
li.t_uname = user;
li.t_amount = rechargeamount.Text;
li.t_crdno = cardid.Text;
li.t_type = Convert.ToString(1);
li.ins_recharge(li);
li.add(li);
string a = rechargeamount.Text;
string email = dt.Rows[0]["email_id"].ToString();
string ta = dt.Rows[0]["balance"].ToString();
string var = SendEmail(email, "Blace information", "your account is creadited with " + a + "RS your current balance is" + ta);
rechargeamount.Text = null;
cardid.Text = null;
}