Multi tool use

Entity Framework : send list between methods in the same controller not working

I want to send a list to this method (inside the same controller)

[HttpGet]
public ActionResult listaExpedientesPOrCriterio(List<Expediente> expedientes)
{

ExpedienteListPorCriterio vm = new ExpedienteListPorCriterio(expedientes);
//List<Expediente> expedientes = db.Expediente.ToList();
//SelectList Tramitees = new SelectList(expedientes, "Codigo", "FechaCreacion");
return View(vm);
}


Im using this inside the other method, to send the list

return RedirectToAction("listaExpedientesPOrCriterio", "expedientes");


but I receive only null. Any idea whats going on?

1 Answer
1

You have [HttpGet] action attribute. How you intend to send to it List<T> at all? Instead, you have to use [HttpPost] and pass data in request's body, but at this case you won't can to RedirectToAction. But you can pass your expedientes list from one action to another via TempData also preserving [HttpGet]:

[HttpGet]

List<T>

[HttpPost]

RedirectToAction

expedientes

TempData

[HttpGet]

[HttpGet]
public ActionResult AnotherActionName()
{
//some code...
TempData["expedientes"] = expedientes;
return RedirectToAction("listaExpedientesPOrCriterio"/*, "expedientes"*/);
}

[HttpGet]
public ActionResult listaExpedientesPOrCriterio(/*List<Expediente> expedientes*/)
{
var expedientes = (List<Expediente>)TempData["expedientes"];
var vm = new ExpedienteListPorCriterio(expedientes);
return View(vm);
}


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