public ActionResult Edit(int id, string name, DateTime? hireDate)
        {
            var repository = new EmployeeRepository();
            var employee = repository.FindByID(id);

            if (ModelState.IsValid)
            {
                employee.Name = name;
                employee.HireDate = hireDate.Value;
                repository.Save(employee);
                return RedirectToAction("Index");
            }

            if (!hireDate.HasValue)
            {
                ModelState.AddModelError("HireDate", "Could not parse the datetime value");
            }

            return View(employee);
        }
 //
 // GET: /Employee/Edit/5
 public ActionResult Edit(int id)
 {
     var repository = new EmployeeRepository();
     var employee = repository.FindByID(id);
     return View(employee);
 }