protected void BtnUpdate_Click(object sender, EventArgs e)
        {
            TransactionInfo t1 = new TransactionInfo();

            BusInfo binfo = new BusInfo();

            if (t1.AlreadyBooked(DropDownBusId.SelectedItem.Text) == false)
            {
                binfo.UpdateBus(DropDownBusId.SelectedItem.Text, TxtSource.Text, TxtDestination.Text, Convert.ToDateTime(TxtDate.Text).Date, Convert.ToDateTime(TxtTime.Text), Convert.ToInt32(TxtSeat.Text), Convert.ToInt32(TxtFare.Text), TxtType.Text);
                Response.Redirect("Admin.aspx");
            }
            else
            {
                TxtSource.Text      = "Cannot Update";
                TxtDestination.Text = "";
                TxtDate.Text        = "";
                TxtTime.Text        = "";
                TxtFare.Text        = "";
                TxtSeat.Text        = "";
                TxtType.Text        = "";
            }
        }