//[Authorize (Roles ="Employee")]
        public ActionResult AllCustomers()
        {
            //AppRole roleName = RoleManager.FindByName(role);

            var allusers = db.Users.ToList();
            var users = allusers.Where(x => x.Roles.Select(role => role.RoleId).Contains("f32fa611-547f-4761-bfa3-9682f677e04c")).ToList();
            var userVM = users.Select(user => new UserViewModel { Username = user.UserName, Roles = string.Join(",", user.Roles.Select(role => role.RoleId)) }).ToList();

            var customers = allusers.Where(x => x.Roles.Select(role => role.RoleId).Contains("04d2547f-4935-4842-add6-a0a1229eae16")).ToList();
            var customersVM = customers.Select(user => new UserViewModel { Username = user.UserName, Roles = string.Join(",", user.Roles.Select(role => role.RoleId)) }).ToList();
            var model = new GroupedUserViewModel { Customers = userVM, Managers = customersVM };

            //var managers = allusers.Where(x => x.Roles.Select(role => role.Name).Contains("Manager")).ToList();
            //var managersVM = managers.Select(user => new UserViewModel { Username = user.FullName, Roles = string.Join(",", user.Roles.Select(role => role.Name)) }).ToList();
            //var model = new GroupedUserViewModel { Customers = userVM, Managers = managersVM };

            return View(model);
        }
        //[Authorize (Roles ="Manager")]
        public ActionResult AllEmployees()
        {
            //AppRole roleName = RoleManager.FindByName(role);

            var allusers = db.Users.ToList();
            var users = allusers.Where(x => x.Roles.Select(role => role.RoleId).Contains("f32fa611-547f-4761-bfa3-9682f677e04c")).ToList();
            var userVM = users.Select(user => new UserViewModel { Username = user.UserName, Roles = string.Join(",", user.Roles.Select(role => role.RoleId)) }).ToList();

            var managers = allusers.Where(x => x.Roles.Select(role => role.RoleId).Contains("99c46225-ddc3-46c9-8f04-223224399e61")).ToList();
            var managersVM = managers.Select(user => new UserViewModel { Username = user.UserName, Roles = string.Join(",", user.Roles.Select(role => role.RoleId)) }).ToList();
            var model = new GroupedUserViewModel { Customers = userVM, Managers = managersVM };

            return View(model);
        }