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

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