public ActionResult Edit([Bind(Include = "ID,Name")] Manufacturer manufacturer)
{
if (db.Manufacturers.Any(x => x.Name == manufacturer.Name))
{
ModelState.AddModelError("Name", "There is already a manufacturer with that name.");
}
if (ModelState.IsValid)
{
db.Entry(manufacturer).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(manufacturer);
}