//@Shutong
public ActionResult PurchaseOrderList()
{
ViewData["Incomplete"] = _purchaseOrderDAO.FindIncompletePO();
ViewData["Pending"] = _purchaseOrderDAO.FindPendingPO();
ViewData["Rejected"] = _purchaseOrderDAO.FindRejectedPO();
ViewData["Approved"] = _purchaseOrderDAO.FindApprovedPO();
ViewData["Delivered"] = _purchaseOrderDAO.FindDeliveredPO();
ViewData["Cancelled"] = _purchaseOrderDAO.FindCancelledPO();
ViewData["LowStock"] = _itemDAO.FindLowStockItems();
return(View());
}