// GET: Registration/Edit/{id}
        public ActionResult View(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            var organisationId     = UserOrganisationId;
            var centreId           = UserCentreId;
            var registration       = _nidanBusinessService.RetrieveRegistration(organisationId, id.Value);
            var paymentModes       = _nidanBusinessService.RetrievePaymentModes(organisationId, e => true);
            var batchTimePrefers   = _nidanBusinessService.RetrieveBatchTimePrefers(organisationId, e => true);
            var courseInstallments = _nidanBusinessService.RetrieveCourseInstallments(organisationId, centreId);
            var candidateFeeData   = _nidanBusinessService.RetrieveCandidateFees(organisationId, e => e.CandidateInstallmentId == registration.CandidateInstallmentId);
            var paidAmount         = candidateFeeData.Items.Where(e => e.FeeTypeId == 1 || e.FeeTypeId == 6).Sum(e => e.PaidAmount);

            if (registration == null)
            {
                return(HttpNotFound());
            }
            var interestedCourseIds = registration.Enquiry.EnquiryCourses.Select(e => e.CourseId).ToList();
            var courses             = _nidanBusinessService.RetrieveCourses(organisationId, p => true).Where(e => interestedCourseIds.Contains(e.CourseId));
            var enquiry             = _nidanBusinessService.RetrieveEnquiry(organisationId, registration.EnquiryId);
            var viewModel           = new RegistrationViewModel()
            {
                PaymentModes       = new SelectList(paymentModes, "PaymentModeId", "Name"),
                Courses            = new SelectList(courses, "CourseId", "Name"),
                BatchTimePrefers   = new SelectList(batchTimePrefers, "BatchTimePreferId", "Name"),
                EnquiryId          = enquiry.EnquiryId,
                Registration       = registration,
                CourseInstallments = new SelectList(courseInstallments, "CourseInstallmentId", "Name"),
                PaidAmount         = paidAmount.Value
            };

            return(View(viewModel));
        }