protected void Page_Load(object sender, EventArgs e)
 {
     try
     {
         ExpiryDateTextBox.Attributes["min"] = DateTime.Now.ToString("yyyy-MM-dd");
         HRSBookingsBLL bookingBLLObject = new HRSBookingsBLL();
         string         customerID       = Session["userId"].ToString();
         List <string>  booking          = bookingBLLObject.GetBookingIDForTXN(customerID);
         BookingIDDropDownList.DataSource = booking;
         BookingIDDropDownList.DataBind();
         BookingIDDropDownList.SelectedValue = Request.QueryString["field"];
         hidden.Visible = false;
     }
     catch (Exception ex)
     {
         ExceptionUtility.ExceptionLog(ex);
         throw;
     }
 }