public void UploadEmployees(List <Employee> employees)
        {
            var context = new MvcReviewContext();

            context.Employees.AddRange(employees);
            context.SaveChanges();
        }
        public async Task <Employee> Add(Employee e)
        {
            var context = new MvcReviewContext();

            context.Employees.Add(e);
            context.SaveChanges();
            await Task.Delay(5000);

            return(e);
        }