public ActionResult EnrollmentsGridViewPartialUpdate([ModelBinder(typeof(DevExpressEditorsBinder))] Models.Enrollments item)
        {
            if (ModelState.IsValid)
            {
                try
                {
                    // Insert here a code to update the item in your model
                    var ret = unitOfWork.EnrollmentsRepo.Find(x => x.Id == item.Id);
                    ret.StudentId         = item.StudentId;
                    ret.AvailableCourseId = item.AvailableCourseId;
                    ret.IsDrop            = item.IsDrop;
                    unitOfWork.Save();
                }
                catch (Exception e)
                {
                    ViewData["EditError"] = e.Message;
                }
            }
            else
            {
                ViewData["EditError"] = "Please, correct all errors.";
            }
            var model = unitOfWork.EnrollmentsRepo.Fetch(includeProperties: "AvailableCourses,UserDetails");

            //if (item.StudentId != null)
            //    model = model.Where(m => m.StudentId == item.StudentId);
            ViewBag.StudentId = item.StudentId;
            return(PartialView("_EnrollmentsGridViewPartial", model.ToList()));
        }
        public ActionResult EnrollmentsGridViewPartialAddNew([ModelBinder(typeof(DevExpressEditorsBinder))] Models.Enrollments item)
        {
            // var model = new object[0];
            if (ModelState.IsValid)
            {
                try
                {
                    foreach (var i in item.AvailableSubjectIds)
                    {
                        var availableSubjectId = i.ToInt();
                        var enrolled           = new EnrolledSubject()
                        {
                            AvailableSubjectId = availableSubjectId
                        };
                        enrolled.Grades.Add(new Grades());
                        item.EnrolledSubject.Add(enrolled);
                    }
                    // Insert here a code to insert the new item in your model
                    item.DateCreated = DateTime.Now;
                    unitOfWork.EnrollmentsRepo.Insert(item);
                    unitOfWork.Save();
                }
                catch (Exception e)
                {
                    ViewData["EditError"] = e.Message;
                }
            }
            else
            {
                ViewData["EditError"] = "Please, correct all errors.";
            }

            var model = unitOfWork.EnrollmentsRepo.Fetch(includeProperties: "AvailableCourses,UserDetails");

            //if (item.StudentId != null)
            //    model = model.Where(m => m.StudentId == item.StudentId);
            ViewBag.StudentId = item.StudentId;
            return(PartialView("_EnrollmentsGridViewPartial", model.ToList()));
        }