Umbraco Contour GotoPageOnSubmit

public class ArrangementPaymentHandler : Umbraco.Forms.Core.WorkflowType
    {
        public override System.Collections.Generic.List<Exception> ValidateSettings()
        {
            var exceptions = new List<Exception>();
            return exceptions;
        }

        public ArrangementPaymentHandler()
        {
            this.Name = "Arrangement payment workflow";
            this.Id = new Guid("20584169-2351-4569-8c4c-cf76ddf97dda");
            this.Description = "Arrangement payment workflow til events";
        }

        public override WorkflowExecutionStatus Execute(Record record, RecordEventArgs e)
        {

            RecordService service = new RecordService(record);
            var lang = library.GetCurrentDomains(Node.GetCurrent().Id)[0].Language.CultureAlias;

            #region todo
            //RecordStorage rs = new RecordStorage();
            //var isthere = from r in rs.GetAllRecords(e.Form.Id)
            //              where
            //                  r.GetRecordField("email").ValuesAsString().ToLower().Equals(
            //                      record.GetRecordField("email").ValuesAsString().ToLower())
            //              &&
            //              r.UmbracoPageId.Equals(
            //                     record.UmbracoPageId)
            //                     && r.State == FormState.Approved
            //              select r;

            //rs.Dispose();

            //if (isthere.Any())
            //{
            //    var dobbleSubmissonPageId = int.Parse(ConfigurationManager.AppSettings["EventDobbleSubmissonPageID"]);
            //    //BUG: LK Recordfield do not get updated when record is not approved ?
            //    record.GetRecordField("Paid").Values.Clear();
            //    record.GetRecordField("Paid").Values.Add("Dobble submisson");
            //    e.Form.GoToPageOnSubmit = dobbleSubmissonPageId;
            //    return WorkflowExecutionStatus.Cancelled;
            //}
            #endregion

            Node currentnode = umbraco.NodeFactory.Node.GetCurrent();
            Document umpage = new Document(currentnode.Id);

            // Sent to payment if theres a amount
            if (!string.IsNullOrEmpty(umpage.getProperty("eventPrice").Value.ToString()) && umpage.getProperty("eventPrice").Value.ToString() != "0")
            {
                //dibspaymentsite pageid
                var paymentPageId = string.Empty;

                if (lang == "da-DK")
                    paymentPageId = ConfigurationManager.AppSettings["danishDibsPaymentPageId"].ToString();
                else
                    paymentPageId = ConfigurationManager.AppSettings["englishDibsPaymentPageId"].ToString();

                e.Form.GoToPageOnSubmit = int.Parse(paymentPageId);
            }
            else
            {
                // Move from sumbitted to approved
                record.GetRecordField("Paid").Values.Clear();
                record.GetRecordField("Paid").Values.Add("Gratis");

                service.Approve();
            }

            service.Dispose();
            return WorkflowExecutionStatus.Completed;
        }
    }