public ActionResult Summary()
 {
     //each viewbag is for one section.
     //the sections are 1)items recommended for purchase, pending POs, ordered POs, approved POs
     ViewBag.OutstandingStationeryList = _stationeryRepo.GetOutstandingStationeryByAllSupplier();
     ViewBag.PendingApprovalPOList     = _poRepo.GetPOByStatus(Pending);
     ViewBag.OrderedPOList             = _poRepo.GetPOByStatus(Ordered);
     ViewBag.ApprovedPOList            = _poRepo.GetPOByStatus(Approved);
     return(View());
 }