public ActionResult Create(Gear gear)
        {
            if (ModelState.IsValid)
            {
                db.Gears.Add(gear);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(gear);
        }
 public ActionResult Edit(Gear gear)
 {
     if (ModelState.IsValid)
     {
         db.Entry(gear).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(gear);
 }