Trouble accessing the property of a class in Ajax - ajax

Question

In index.cshtml I am using Ajax. In click event of .removelink to get changes from action controller as follows:
$(".RemoveLink").click(function () {
// Get the id from the link
var recordToDelete = $(this).attr("data-id");
if (recordToDelete != '' || recordToDelete != null) {
// Perform the ajax post
$.ajax({
//contentType: 'application/json',
//dataType: 'text',
type: 'post',
dataType: 'JSON',
url: '/ShoppingCart/RemoveFromCart/',
data: { id: recordToDelete },
success: function (data) {
if (data.ItemCount == 0) {
$('#row-' + data.DeleteId).fadeOut('slow');
}
else {
$('#item-count-' + data.DeleteId).text(data.ItemCount);
}
$('#cart-total').text(data.CartTotal);
$('#update-message').text(data.Message);
$('#cart-status').text('Cart (' + data.CartCount + ')');
}
});
}
});
And in controller:
//AJAX: /ShoppingCart/RemoveFromCart/5
[HttpPost]
public IActionResult RemoveFromCart(int id)
{
//Remove the item from the cart
var cart = ShoppingCart.GetCart(this.HttpContext);
// Get the name of the album to display confirmation
//string albumName = _context.Carts
//.Single(item => item.RecordId == id).Album.Title;
Cart cartt = ShoppingCart.getCartForGetalbumName(id);
// Remove from cart
int itemCount = cart.RemoveFromCart(id);
// Display the confirmation message
var results = new ShoppingCartRemoveViewModel
{
Message = HtmlEncoder.Default.Encode(cartt.Album.Title) +
" has been removed from your shopping cart.",
CartTotal = cart.GetTotal(),
//CartCount = cart.GetCount(),
ItemCount = itemCount,
DeleteId = id
};
return Json(results);
}
However, it does not work. Additionally, the text of the tags does not change and fadeOut() does not work.
When I send a unit field (eg, a string or an integer) Jason reads it well.
However, when I send a class containing some properties (like the example above), its value in the data parameter is problematic.

Answer 1

Please modify your property to lowercase , try to use :
success: function (data)
{
if (data.itemCount == 0) {
$('#row-' + data.deleteId).fadeOut('slow');
}
else {
$('#item-count-' + data.deleteId).text(data.itemCount);
}
$('#cart-total').text(data.cartTotal);
$('#update-message').text(data.message);
$('#cart-status').text('Cart (' + data.cartCount + ')');
}

Answer 2

i add The following code to convert data to json in RemoveFromCart controller action:
var resulTtoJson = Newtonsoft.Json.JsonConvert.SerializeObject(results);
and return json type :
[HttpPost]
public IActionResult RemoveFromCart(int id)
{
//Remove the item from the cart
var cart = ShoppingCart.GetCart(this.HttpContext);
// Get the name of the album to display confirmation
//string albumName = _context.Carts
//.Single(item => item.RecordId == id).Album.Title;
Cart cartt = ShoppingCart.getCartForGetalbumName(id);
// Remove from cart
int itemCount = cart.RemoveFromCart(id);
// Display the confirmation message
var results = new ShoppingCartRemoveViewModel
{
Message ="محصول"+ cartt.Album.Title +
"از سبد خریدتان حذف گردید.",
CartTotal = cart.GetTotal(),
//CartCount = cart.GetCount(),
ItemCount = itemCount,
DeleteId = id
};
var resulTtoJson = Newtonsoft.Json.JsonConvert.SerializeObject(results);
return Json(resulTtoJson);
also add the following code in view to convert data to javascript type:
var data =JSON.parse(dataa);
and use it:
$(".RemoveLink").click(function () {
// Get the id from the link
var recordToDelete = $(this).attr("data-id");
// alert(recordToDelete);
if (recordToDelete != '' || recordToDelete != null) {
// Perform the ajax post
$.post("/ShoppingCart/RemoveFromCart/", { id: recordToDelete},
function (dataa) {
// Successful requests get here
// Update the page elements
var data =JSON.parse(dataa);
if (data.ItemCount == 0) {
$('#row-' + data.DeleteId).fadeOut('slow');
} else {
$('#item-count-' + data.DeleteId).text(data.ItemCount);
}
$('#cart-total').text(data.CartTotal);
$('#update-message').text(data.Message);
$('#cart-status').text('Cart (' + data.CartCount + ')');
}
});
}
});