//Check All Items being returned
 public ActionResult CheckInItems(CheckInItemConfirmModel vm)
 {
     if (Session["isAdmin"] == null)
         return RedirectToAction("Index", new { controller = "Home", action = "Index" });
     if (vm == null || Session["LoggedUserId"]==null)
         return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
     string userName = (string)Session["LoggedUserID"];
     for(int i=0; i< vm.ItemsToReturn.Count; i++)
     {
         var item = db.Items.Find(vm.ItemsToReturn[i].ItemId);
         if (item == null)
             return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
         if (item.CheckedInById != null)
             return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
         item.CheckedInById = userName;
         db.Entry(item).State = EntityState.Modified;
         db.SaveChanges();
     }
     //TempData["CheckInViewModel"] = vm;
     //return RedirectToAction("InventoryReturnReminder");
     return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
 }
        public ActionResult QuantitySubmit(CheckInQuantitySelectViewModel vm)
        {
            if (Session["isAdmin"] == null)
                return RedirectToAction("Index", new { controller = "Home", action = "Index" });
            if (vm == null)
                return RedirectToAction("Index");
            var school = db.Schools.Find(vm.SelectedSchoolId);
            if (school == null)
                return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });

            IList<Items> itemsToReturn = new List<Items>();
            IList<string> itemDisplayString = new List<string>();
            IList<string> itemDisplayLabels = new List<string>();

            var rentedItems = getRentedItems(vm.SelectedSchoolId);
            int index = 0;
            foreach(int quantity in vm.ItemQuantityFields)
            {
                if(quantity > 0)
                {
                    var potentialItems = rentedItems.Where(item => item.ItemTypeId == vm.SelectedItemTypesModel[index].ItemTypeId).ToList();
                    if (potentialItems.Count == 0) {
                        return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
                    }
                    if(quantity <= potentialItems.Count)
                    {
                        itemDisplayString.Add(quantity + " x " + potentialItems[0].ItemType.ItemName);
                        if (potentialItems[0].ItemType.HasLabel)
                            itemDisplayLabels.Add(potentialItems[0].Label.LabelName);
                        else
                            itemDisplayLabels.Add("(No Label)");
                        for (int i=0; i<quantity; i++)
                        {
                            var item = db.Items.Find(potentialItems[i].ItemId);
                            if (item == null)
                                return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
                            itemsToReturn.Add(item);
                        }
                    }
                    else
                    {
                        TempData["error"] = "Entered quantity is greater than number of items checked out";
                        return RedirectToAction("Index", new { Controller = "CheckOut", Action = "Index" });
                    }
                }
                index++;
            }
            CheckInItemConfirmModel confirmVm = new CheckInItemConfirmModel
            {
                ItemDisplayString = itemDisplayString,
                ItemDisplayLabels = itemDisplayLabels,
                ItemsToReturn = itemsToReturn,
                SelectedSchoolId = vm.SelectedSchoolId
            };
            TempData["CheckInItemConfirmModel"] = confirmVm;
            return RedirectToAction("Confirm");
        }