I will like to request your help to debug my Jquery which seems not to pick-up my new count for the quantity.
I am in my application and I added a product, I changed the quantity of the item from 1 to 3. I clicked the refresh button. I was expecting the total will be changed (total X 3) instead of (total X 1)
I think the problem is coming from the cartCount variable. this variable doesn't seems to get the new count of the @html.TextBoxFor field from the view.
I got an error with the javascript RefreshQuantity :
In Chrome Pf12, in the header tab
I can see
header tab
id:320
cartCount:0
The id 320 is the corresponding id in the Panier table.
Preview tab
{Message: Error occured or invalid input...,CartTotal:-1, ItemCount:-1, DeleteId:210}
CartCount: -1
CartTotal: -1
DeleteId: 320
ItemCount: -1
Message: "Error occurred or invalid input..."
Response Tab
{"Message":"Error occurred or invalid
input...","CartTotal":-1,"CartCount":-1,"ItemCount":-1,"DeleteId":320}
Index.cshtml
@model Tp1WebStore3.ViewModels.ShoppingCartViewModel
@{
ViewBag.Title = "Shopping Cart";
}
@using (Html.BeginForm())
{
<h3>
<em>Visualisation </em> du panier:
@if (TempData["err_message"] != null)
{
@TempData["err_message"]
}
</h3>
<script src="/Scripts/jquery-1.8.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('.RemoveLink').click(function () {
$.ajax({
url: '@Url.Action("RemoveFromCart","Panier")',
data: { id: $(this).data('id') },
type: 'POST',
cache: false,
success: function (result) {
$('#row-' + result.DeleteId).remove();
$('#row-' + result.DeleteId).fadeOut('slow');
$('#cart-status').text('Cart (' + result.CartCount + ')');
$('#update-message').text(result.Message);
$('#cart-total').text(result.CartTotal);
$.get('@Url.Action("CartSummary", "Panier")');
$('#content').html(result);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("Status: " + textStatus); alert("Error: " + errorThrown);
}
});
return false;
});
});
$(function () {
$(".RefreshQuantity").click(function () {
// Get the id from the link
var recordToUpdate = $(this).attr("data-id");
var countToUpdate = 0;
if ($("#" + $(this).attr("id")).val() !== '') {
countToUpdate = $("#" + $(this).attr("id")).val();
}
if (recordToUpdate != '') {
// Perform the ajax post
$.post("/Panier/UpdateCartCount", { "id": recordToUpdate, "cartCount":
countToUpdate },
function (data) {
// Successful requests get here
// Update the page elements
if (data.ItemCount == 0) {
$('#row-' + data. DeleteId).fadeOut('slow');
}
$('#update-message').text(htmlDecode(data.Message));
$('#cart-total').text(data.CartTotal);
$('#cart-status').text('Cart (' + data.CartCount + ')');
//Only process the callback data when no server error occurs
if (data.ItemCount != -1) {
$('#cart-total').text(data.CartTotal);
$('#cart-status').text('Cart (' + data.CartCount + ')');
}
}
);
}
});
});
$(function () {
if (typeof String.prototype.trim !== 'function') {
String.prototype.trim = function () {
return this.replace(/^\s+|\s+$/g, '');
}
}
});
function clearUpdateMessage() {
// Reset update-message area
$('#update-message').text('');
}
function htmlDecode(value) {
if (value) {
return $('<div />').html(value).text();
}
else {
return '';
}
}
</script>
<div>
@for (int i = 0; i < Model.CartItems.Count; i++)
{
<p>
@Html.ValidationMessageFor(model => model.CartItems[i].Quantite)
</p>
}
</div>
<div id="update-message">
</div>
<div id="content">
@if (Model.CartTotal != 0)
{
<p class="button">
@Html.ActionLink("Paiement >>", "AddressAndPayment", "Checkout")
</p>
<p class="NouvelAjout">
@Html.ActionLink("Ajouter un autre article >>", "Magasin", "Home")
</p>
}
<table>
<tr>
<th>
Produit
</th>
<th>
Prix (unitaire)
</th>
<th>
Quantite
</th>
<th></th>
</tr>
@{int ix = 0;}
@foreach (var item in Model.CartItems)
{
<tr id="row-@item.ProduitId">
<td>
@Html.ActionLink(item.Produit.Description, "Details", "Produit", new { id =
item.ProduitId }, null)
</td>
<td>
@item.Produit.Prix
</td>
<td>
@Html.TextBoxFor(model => model.CartItems[ix].Quantite,
new {style = "width:30px; text-align:right;",
onkeyup = "clearUpdateMessage();",
onchange = "clearUpdateMessage();"
})
</td>
<td>
<a href="#" class="RefreshQuantity" data-id="@item.PanierId"
id="CartItems_@(ix)__Count">Refresh quantity</a> | />a
</td>
<td>
<a href="#" class="RemoveLink" data-id="@item.PanierId"> Enlever du panier
>> </a>
</td>
</tr>
ix++;
}
<tr>
<td>
Total
</td>
<td></td>
<td></td>
<td id="cart-total">
@Model.CartTotal
</td>
</tr>
</table>
</div>
}
Do we have anyway to debug the javascript from Visual Studio? I saw a post which is stating it was a problem with Visual studio ref.: Visual Studio 2013 can't debug javascript in cshtml
ShoppingCart.cs
public int UpdateCartCount(int id, int cartCount)
{
// Get the cart
var cartItem = db.Paniers.Single(
cart => cart.CartId == ShoppingCartId
&& cart.PanierId == id);
int itemCount = 0;
if (cartItem != null)
{
if (cartCount > 0) <=== cartCount is always 0 it should contains the new value
added from the view.
{
cartItem.Quantite = cartCount;
itemCount = cartItem.Quantite;
}
else
{
db.Paniers.Remove(cartItem);
}
// Save changes
db.SaveChanges();
}
return itemCount;
}
I need to know how to extract the new value added by the user in the screen from the view field
@Html.TextBoxFor(model => model.CartItems[ix].Quantite,
new {style = "width:30px; text-align:right;",
onkeyup = "clearUpdateMessage();",
onchange = "clearUpdateMessage();"
})
