public ActionResult Edit(Department dept)
        {
            if (!ModelState.IsValid) return View(dept);

            dbCtx.Entry(dept).State = EntityState.Modified;
            dbCtx.SaveChanges();
            return RedirectToAction("Index");
        }
 public ActionResult Create(Department dept)
 {
     if (!ModelState.IsValid) return View(dept);
     var ExiastDept = dbCtx.Departments.Where(d => d.DeptName == dept.DeptName).Count();
     if (ExiastDept == 0)
     {
         dbCtx.Departments.Add(dept);
         dbCtx.SaveChanges();
         return RedirectToAction("Index");
     }
     else
     {
         ViewBag.SomeError = "Department Is Already Added";
         ViewBag.SucMsg = false;
         return View();
     }
 }