parametric quantity view _ProductBoxList 3.80

Hi, I am editing the _Productboxlist view, I would like to add a text box field to the view to make the value of the quantity parameter (fixed to 1 in the standard).

 Because the parameter prepares it first
// prepare "Add to cart" AJAX link

do you think I should go to make this parametric?

{@
    // prepare "Add to cart" AJAX link
    string addtocartlink = "";
    var shoppingCartTypeId = (int) ShoppingCartType.ShoppingCart;

    var quantity = 1; // make parametric (input text box)
   
    if (Model.ProductPrice.ForceRedirectionAfterAddingToCart)
    {
        addtocartlink = Url.RouteUrl ("AddProductToCart-Catalog", new {productId = Model.Id, shoppingCartTypeId = shoppingCartTypeId, quantity = quantity, forceredirection = Model.ProductPrice.ForceRedirectionAfterAddingToCart});
    }
    else
    {
        addtocartlink = Url.RouteUrl ("AddProductToCart-Catalog", new {productId = Model.Id, shoppingCartTypeId = shoppingCartTypeId, quantity = quantity,});
    }
}




  <input type="button" value="@(Model.ProductPrice.AvailableForPreOrder ? T("ShoppingCart.PreOrder") : T("ShoppingCart.AddToCart"))" class="button-2 product-box-add-to-cart-button" onclick="AjaxCart.addproducttocart_catalog('@addtocartlink');return false;" />

Try with the following js function  and call it from button click

function callAjaxLink(productId,addtocartlink) {
        var defaultLink =addtocartlink;
        var l = defaultLink.length;
        var slice = defaultLink.slice(0, (l - 1));
        var q = $('#itemquantity_' + productId).val(); // get quantiy value
        if (q == "")
            q = "1";
        var newLink = slice.concat(q);
       AjaxCart.addproducttocart_catalog(newLink);
    }

fantastic, it works perfectly

if I wanted the quantity to be decimal?
how does the script become?
I modified the variable

 public ActionResult AddProductToCart_Catalog (int productId, int shoppingCartTypeId,
            decimal quantity, bool forceredirection = false)

and modified the Provider wheels in

routes.MapLocalizedRoute ( "AddProductToCart-Catalog"
"Addproducttocart / catalog / {productId} / {shoppingCartTypeId} / {quantity}",
new {controller = "ShoppingCart", action = "AddProductToCart_Catalog"},
new {productId = @ "\ d +", shoppingCartTypeId = @ "\ d +"},
new [] {"Nop.Web.Controllers"});

removing the restriction of the quantity = @"\d+" only integers


when I insert 1.5 or 1.5 the public.ajaxcart.js


 

addproducttocart_catalog: function (urladd) {
        if (this.loadWaiting! = false) {
            return;
        }
        this.setLoadWaiting (true);

        $ .Ajax ({
            cache: false,
            url: urladd,
            type: 'post',
            success: this.success_process,
            complete: this.resetLoadWaiting,
            error: this.ajaxFailure
        });
    },

returns an error message

    ajaxFailure: function () {
        alert ('Failed to add the product.');
    }

What should you do? insert a restriction in the route provider so that it accepts not only the integer values?

thank you so much