public ActionResult Edit(int id, FormCollection collection)
 {
     try
     {
         // TODO: Add update logic here
         _trainRepository.Edit(id, collection["TrainSymbol"], Convert.ToInt32(collection["Speed"]), collection["Description"]);
         return(RedirectToAction("DisplayTrains"));
     }
     catch
     {
         return(View("Error"));
     }
 }