Using return Json() method on client in success function(data) undefined. How to fix?

Question

JavaScript

Project on asp.net core, web api 2.
Method:

There are approximately 600 products in the database. Linq selection pulls out goods, checked it in the debugger.

[HttpPost("ConfectionsJsonResult")]
        public JsonResult ConfectionsJsonResult()
        {
            IEnumerable<Products> confections = DbNorthWind.Products.Where(p => p.CategoryId == 3);

            return Json(confections);
        }

Customer. Result (in comments):

Property in Json object is correct ( ProductName as column name in database ).

$.getJSON({
        type: 'POST',
        dataType: 'json',
        contentType: 'application/JSON',
        url: '/api/Product/ConfectionsJsonResult',
        success: function (data) {

            var results = $("#ConfectionsList");

            alert(data); //[object Object],[object Object],[object Object],[object Object],[object Object],...
            alert(data[0].ProductName); //undefined

-------------------------------------------------- -------------------------------------------------- -------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
------ -------------------------------------------------- -------------------------------------------------- -------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is how the working code looks , but I was asked to remove "var JsonConfections = JsonConvert.SerializeObject(confections);" as it is a system load.

[HttpPost("ConfectionsJsonResult")]
        public JsonResult ConfectionsJsonResult()
        {

            var confections = DbNorthWind.Products.Where(p => p.CategoryId == 3);

            var JsonConfections = JsonConvert.SerializeObject(confections);

            return Json(JsonConfections );
        }

On the client, jQuery.parseJSON(data) in the success function still works.

Answer 1

Make a request to your api in the browser line or via postman. If a normal json arrives, then the matter is in the ajax request, in its settings, if not, then the object is not serialized in json.