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I have a List of objects that is instantiated when the view is created, when a value in the dropdownlist is selected, use ajax to make a request to verify which of the objects inside that List is the dropdownlist correspondent. The problem is that List is null in the ajax
public class HomeController : Controller
{
List<Lanche> lanches = new List<Lanche>();
...
public IActionResult Index()
{
PopularListaLanches(lanches);
}
[HttpGet("GetIngredientes")]
public JsonResult GetIngredientes(int id)
{
var lanche = lanches.Where(x => (int)x.NomeLanche == id).FirstOrDefault();
return Json(lanche);
}
there is a way to persist this data in the user session?
"there is a way to persist this data in the user session?" Your question already answers the question :-)
– Ricardo Pontual
You can put in the session:
Session["lanches"] = lanches. Another solution, if the list is the same for all users use cache or even turn the list into static:static List<Lanche> lanches = new List<Lanche>();– Ricardo Pontual
Ideally your model would search for the item when needed, using Session is an idea, but it would not be better to search for that value only when it is needed?
– user8545