public ActionResult Edit(Employee employee)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    db.Entry(employee).State = System.Data.Entity.EntityState.Modified;
                    db.SaveChanges(); // update
                    return RedirectToAction("Index");

                }
            }
            catch
            {
                throw new Exception("We can't save the modified data.");

            }
            return View(employee);
        }
        public ActionResult Create(Employee employee)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    db.Employees.Add(employee);
                    db.SaveChanges();// insert into
                    return RedirectToAction("Index");

                }

            }
            catch
            {
                throw new Exception("We can't create data.");

            }

            return RedirectToAction("Index");
        }