I'm having trouble when handling the Post request for my controller:
[HttpGet]
public ActionResult Crear()
{
CarreraRepository carreraRepository = new CarreraRepository();
var carreras = carreraRepository.FindAll().OrderBy(x => x.Nombre);
var carrerasList = new SelectList(carreras, "ID", "Nombre");
ViewData["Carreras"] = carrerasList;
Materia materia = new Materia();
return View(materia);
}
[HttpPost]
public ActionResult Crear(Materia materia, FormCollection values)
{
if (ModelState.IsValid)
{
repo.Add(materia);
repo.Save();
return RedirectToAction("Index");
}
return View(materia);
}
When the HttpGet action runs, the form to create renders fine. The values are set correctly on the DropDownList and everything is peachy; when I try to submit the form (run the HttpPost action) I receive the error.
Can anyone help me out?
Is it because the HttpPost doesn't have a ViewData declared? Thanks for the help.
Since you are Posting on the same View, when you post to Creat
the ViewData["Carreras"]
is not created. You have to load the data of your carreras again in your Post.
[HttpPost]
public ActionResult Crear(Materia materia, FormCollection values)
{
CarreraRepository carreraRepository = new CarreraRepository();
var carreras = carreraRepository.FindAll().OrderBy(x => x.Nombre);
var carrerasList = new SelectList(carreras, "ID", "Nombre");
ViewData["Carreras"] = carrerasList;
if (ModelState.IsValid)
{
repo.Add(materia);
repo.Save();
return RedirectToAction("Index");
}
return View(materia);
}