protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                InitializePage();
            }

            Common.FailedOnlinePayment failedOnlinePayment = new Common.FailedOnlinePayment();
            StringBuilder result = new StringBuilder();

            btnReturn.Text = Language.GetString(btnReturn.Text);
            DataTable fishInfo = new DataTable();

            try
            {
                string errorMessage = string.Empty;

                fishInfo = Facade.AccountInformation.GetAccountOfReferenceID(dicParams[OnlinePaymentParams.ReferenceId]);

                if (fishInfo.Rows.Count == 0)
                {
                    throw new Exception();
                }

                switch (Helper.GetInt(Request["bank"]))
                {
                case (int)Banks.Mellat:
                    BehPardakhtMellat behPardakht = new BehPardakhtMellat();

                    //if (dicParams[OnlinePaymentParams.Ip] != behPardakht.GatewayPaymentIP)
                    //	throw new Exception(string.Format("{0},InputIP={1},ValidIp={2}", Language.GetString("IPIsInvalid"), dicParams[OnlinePaymentParams.Ip], behPardakht.GatewayPaymentIP));

                    foreach (BehPardakhtMellat.ResCode resCodeList in Enum.GetValues(typeof(BehPardakhtMellat.ResCode)))
                    {
                        if (Helper.GetInt(dicParams[OnlinePaymentParams.ResCode]) == (int)resCodeList &&
                            resCodeList != (int)BehPardakhtMellat.ResCode.TransactionWasSuccessful)
                        {
                            throw new Exception(Language.GetString(resCodeList.ToString()));
                        }
                    }

                    behPardakht.TerminalID = Helper.GetLong(fishInfo.Rows[0]["TerminalID"]);
                    behPardakht.UserName   = fishInfo.Rows[0]["UserName"].ToString();
                    behPardakht.Password   = fishInfo.Rows[0]["Password"].ToString();
                    behPardakht.OrderID    = Helper.GetLong(dicParams[OnlinePaymentParams.SaleOrderId]);
                    behPardakht.VerifyRequest(Helper.GetLong(dicParams[OnlinePaymentParams.SaleReferenceId]));

                    isPaymentSuccessful = true;

                    break;

                case (int)Banks.Parsian:
                    ParsianPaymentGateway parsian = new ParsianPaymentGateway();

                    if (dicParams[OnlinePaymentParams.status] != ((int)ParsianPaymentGateway.Status.Successful).ToString())
                    {
                        throw new Exception();
                    }

                    parsian.Pin = fishInfo.Rows[0]["PinCode"].ToString();
                    parsian.VerifyRequest(Helper.GetLong(dicParams[OnlinePaymentParams.Token]));
                    dicParams[OnlinePaymentParams.SaleReferenceId] = dicParams[OnlinePaymentParams.RRN].ToString();

                    isPaymentSuccessful = true;

                    break;
                }

                if (!isPaymentSuccessful)
                {
                    throw new Exception();
                }

                if (Helper.GetBool(dicParams[OnlinePaymentParams.IsExtendedPanel]))
                {
                    Facade.Fish.UpdateDescription(Helper.GetGuid(fishInfo.Rows[0]["FishGuid"]), Language.GetString("ExtendedPanel"), FishStatus.Confirmed);
                    if (!Facade.User.UpdateExpireDate(Helper.GetGuid(fishInfo.Rows[0]["UserGuid"]), DateTime.Now.AddYears(1)))
                    {
                        throw new Exception(Language.GetString("ErrorRecord"));
                    }
                }
                else if (Helper.GetBool(dicParams[OnlinePaymentParams.IsExtendedNumber]))
                {
                    Common.PrivateNumber privateNumber = Facade.PrivateNumber.LoadNumber(Helper.GetGuid(fishInfo.Rows[0]["ReferenceGuid"]));
                    Facade.Fish.UpdateDescription(Helper.GetGuid(fishInfo.Rows[0]["FishGuid"]), string.Format("{0}-{1}", Language.GetString("ExtendedNumber"), privateNumber.Number), FishStatus.Confirmed);
                    if (!Facade.PrivateNumber.UpdateExpireDate(privateNumber.NumberGuid, DateTime.Now.AddYears(1)))
                    {
                        throw new Exception(Language.GetString("ErrorRecord"));
                    }
                }
                else if (Helper.GetInt(dicParams[OnlinePaymentParams.SalePackageId]) != 0)
                {
                    Facade.Fish.UpdateDescription(Helper.GetGuid(fishInfo.Rows[0]["FishGuid"]), Language.GetString("BuyPanel"), FishStatus.Confirmed);
                    DataTable dtRole = Facade.Role.GetPackage(Helper.GetInt(dicParams[OnlinePaymentParams.SalePackageId]));
                    Facade.User.UpdateUserRole(Helper.GetGuid(fishInfo.Rows[0]["UserGuid"]), Helper.GetGuid(dtRole.Rows[0]["Guid"]));
                }
                else
                {
                    Facade.Fish.ConfirmOnlineFish(Helper.GetGuid(fishInfo.Rows[0]["UserGuid"]),
                                                  Helper.GetLong(fishInfo.Rows[0]["SmsCount"]),
                                                  TypeCreditChanges.OnlinePayment,
                                                  string.Format(Language.GetString("OnlinePaymentTransaction"), dicParams[OnlinePaymentParams.SaleReferenceId]),
                                                  Helper.GetGuid(fishInfo.Rows[0]["FishGuid"]),
                                                  Helper.GetLong(dicParams[OnlinePaymentParams.SaleReferenceId]));
                }

                lblAmount.Text      = fishInfo.Rows[0]["Amount"].ToString();
                lblBillNumber.Text  = dicParams[OnlinePaymentParams.SaleReferenceId];
                lblDatePayment.Text = DateManager.GetSolarDate(DateTime.Now);

                pnlFailedPayment.Visible     = false;
                pnlSuccessfulPayment.Visible = true;
            }
            catch (Exception ex)
            {
                Log  log         = new Log();
                Guid refenceGuid = fishInfo.Rows.Count > 0 ? Helper.GetGuid(fishInfo.Rows[0]["FishGuid"]) : Guid.Empty;

                log.Type          = (int)LogType.Error;
                log.ReferenceGuid = refenceGuid;
                log.Source        = "RegisterFish";
                log.Name          = "OnlinePayment";
                log.Text          = ex.Message;
                log.CreateDate    = DateTime.Now;
                log.IPAddress     = Request.UserHostAddress;
                log.Browser       = Request.Browser.Browser;
                SQLHelper.InsertLogInfo(log);

                if (refenceGuid != Guid.Empty)
                {
                    Facade.Fish.UpdateDescription(refenceGuid, ex.Message, FishStatus.Rejected);
                }

                pnlSuccessfulPayment.Visible = false;
                pnlFailedPayment.Visible     = true;

                Label1.Text += "//" + ex.Message.ToString();
            }
        }