public ActionResult GetProvinciasByPaisId(string paisId)
{
if (String.IsNullOrEmpty(paisId))
{
throw new ArgumentNullException("paisId");
}
int id = 0;
bool isValid = Int32.TryParse(paisId, out id);
var provincias = _repository.GetAllProvinciasByPaisId(id);
var result = (from s in provincias
select new
{
id = s.Id,
name = s.nombre
}).ToList();
return(Json(result, JsonRequestBehavior.AllowGet));
}