public static void Add(string name)
        {
            using(UsersEntities context = new UsersEntities())
            {
                Role role = new Role()
                {
                    Name = name
                };

                context.Roles.Add(role);
                context.SaveChanges();
            }
        }
 public ActionResult Edit(Role model)
 {
     RoleManager.Edit(model.ID, model.Name);
     return RedirectToAction("Index");
 }
 public ActionResult Add(Role role)
 {
     RoleManager.Add(role.Name);
     return RedirectToAction("Index");
 }
 public ActionResult Add()
 {
     Role role = new Role();
     return View(role);
 }