public ActionResult info()
 {
     HistoryViewModel model = new HistoryViewModel();
     //model.HistoryList = db.getAllHistoryRecords(portId, start, end);
     return View(model);
 }
 public ActionResult Index()
 {
     HistoryViewModel model = new HistoryViewModel();
     //model.HistoryList = db.getAllHistoryRecords();
     return View(model);
 }