public ActionResult delete(Target target)
        {
            db.Targets.Attach(target);
            db.Targets.Remove(target);
            db.SaveChanges();

            return View("Target");
        }
 public ActionResult update(Target target)
 {
     db.Entry(target).State = EntityState.Modified;
     db.SaveChanges();
     return View("Target");
 }
 public ActionResult add(Target target)
 {
     db.Targets.Add(target);
     db.SaveChanges();
     return View("Target");
 }