AJAX function does not pass output to another function

Question

I have this function in AJAX:

function SalvarHorario() {


    //NomeHorario
    var nome = $("#Nome").val();

    var token = $('input[name="__RequestVerificationToken"]').val();
    var tokenadr = $('form[action="/Horario/Create"] input[name="__RequestVerificationToken"]').val();
    var headers = {};
    var headersadr = {};
    headers['__RequestVerificationToken'] = token;
    headersadr['__RequestVerificationToken'] = tokenadr;

    //Gravar
    var url = "/Horario/Create";

    $.ajax({
        url: url
        , type: 'POST'
        , headers: headersadr
        , data: { Id: 0, Nome: nome, __RequestVerificationToken: token }
        , success: function (data) {
            if (data.Resultado > 0) {
            ListarItens(data.Resultado);
            //    alert(data.Resultado);
            }
        }
    });
}

The result is correct, is getting the right ID, but it does not pass to the function Listaritens, I have done so in other projects, and worked well, he understands that it is not higher than 0, and in the console, the result gets the last ID inserted correctly, how can I proceed? I’ve tried many ways, and no one passes the correct ID.

This is the list of items:

function ListarItens(idHorario) {

    var url = "/HorariosItens/ListarItens";

    $.ajax({
        url: url
        , type: "GET"
        , data: { id: idHorario }
        , datatype: "html"
        , success: function (data) {
            var divItens = $("#divItens");
            divItens.empty();
            divItens.show();
            divItens.html(data);
            $("#idItem").val("0");
        }
    });

}

Where I need that function:

 public ActionResult ListarItens(int id)
        {
            var lista = _context.HorariosItens.Where(m => m.Horarios.Id == id);
            ViewBag.HorarioId = id;
            ViewBag.ItemId = 0;
            return PartialView(lista);
        }

I believe the problem lies in the date. Result, because it is not passing, if I put an Alert, it returns me Undefined, but is included successfully, so much so that it passes from Success: Function (date).

Create time:

 if (ModelState.IsValid)
            {
                _context.Horarios.Add(h);
                _context.SaveChanges();
            }

            return new JsonResult(new { Resultado = h.Id });

Answer 1

The problem occurred because by default the returns from json no. NET Core are in Camel Casing, and the first letter is lowercase.

One way to break this is in Startup.cs "inform" that you want the json be as written in variable. The code for this would be:

services.AddMvc()
    .AddJsonOptions(options =>
    {
        options.SerializerSettings.ContractResolver = new DefaultContractResolver();
    }); 

Another solution, as commented, is to wait for the returns to be in Camel Casing, that is to say, Return will come return

_{You can see more about Camel Casing at that link}