public IActionResult Agregar(Contacts input)
        {
            if (ModelState.IsValid)
            {
                _db.Entry(input).State = Microsoft.EntityFrameworkCore.EntityState.Added;
                _db.SaveChanges();

                return(RedirectToAction("Index"));
            }
            return(View(input));
        }
        public IActionResult Agregar(Contactos input)
        {
            if (ModelState.IsValid)
            {
                _db.Contactos.Add(input);
                _db.SaveChanges();

                return(RedirectToAction("Index"));
            }
            return(View(input));
        }