Closes #470 The off-canvas cart does not show the tier price (instead of the unit price) when the quantity changes

Author: Michael-Herzog

src/Presentation/SmartStore.Web/Controllers/ShoppingCartController.cs

@@ -2289,6 +2289,7 @@ public ActionResult UpdateCartItem(int sciItemId, int newQuantity, bool isCartPa
 
             var cartHtml = string.Empty;
             var totalsHtml = string.Empty;
+            var newItemPrice = string.Empty;
 
             if (isCartPage)
             {
@@ -2306,6 +2307,9 @@ public ActionResult UpdateCartItem(int sciItemId, int newQuantity, bool isCartPa
                     PrepareShoppingCartModel(model, cart);
                     cartHtml = this.RenderPartialViewToString("CartItems", model);
                     totalsHtml = this.InvokeAction("OrderTotals", routeValues: new RouteValueDictionary(new { isEditable = true })).ToString();
+
+                    var sci = model.Items.Where(x => x.Id == sciItemId).FirstOrDefault();
+                    newItemPrice = sci.UnitPrice;
                 }
             }
 
@@ -2316,7 +2320,8 @@ public ActionResult UpdateCartItem(int sciItemId, int newQuantity, bool isCartPa
                 message = warnings,
                 cartHtml,
                 totalsHtml,
-                displayCheckoutButtons = true
+                displayCheckoutButtons = true,
+                newItemPrice
             });
         }
 

src/Presentation/SmartStore.Web/Scripts/public.offcanvas-cart.js

@@ -203,6 +203,9 @@ $(function () {
                     var type = el.data("type");
                     ShopBar.loadSummary(type, true);
                     el.closest('.tab-pane').find('.sub-total').html(data.SubTotal);
+                    if (data.newItemPrice != "") {
+                        el.closest(".offcanvas-cart-item").find(".unit-price").html(data.newItemPrice);
+                    }
                 }
                 else {
                     $(data.message).each(function (index, value) {