public ActionResult Delete(int?id)
        {
            engineer eng = db.engineers.Find(id);

            if (eng == null)
            {
                return(HttpNotFound());
            }
            return(View(eng));
        }
        public ActionResult Delete(int id)
        {
            try
            {
                engineer eng = db.engineers.Find(id);
                db.engineers.Remove(eng);
                db.SaveChanges();

                return(RedirectToAction("Index"));
            }
            catch
            {
                return(View());
            }
        }
        public ActionResult Create([Bind(Exclude = "e_id")] engineer engineerToCreate)
        {
            try
            {
                if (!ModelState.IsValid)
                {
                    return(View());
                }

                db.engineers.Add(engineerToCreate);
                db.SaveChanges();
                return(RedirectToAction("Index"));
            }
            catch
            {
                return(View());
            }
        }
        public ActionResult Edit(engineer toEdit)
        {
            try
            {
                var originalEng = (from eng in db.engineers where eng.e_id == toEdit.e_id select eng).First();

                if (!ModelState.IsValid)
                {
                    return(View(originalEng));
                }

                db.Entry(originalEng).CurrentValues.SetValues(toEdit);
                db.SaveChanges();

                return(RedirectToAction("Index"));
            }
            catch
            {
                return(View());
            }
        }