Error executing template "Designs/Swift-v2/Paragraph/Swift-v2_ProductAddToCart.cshtml"
System.NullReferenceException: Object reference not set to an instance of an object.
   at CompiledRazorTemplates.Dynamic.RazorEngine_e6e3c08e78e1410ba9ffa9f927c2e69c.<>c__DisplayClass0_0.<ExecuteAsync>b__0(String key)
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at CompiledRazorTemplates.Dynamic.RazorEngine_e6e3c08e78e1410ba9ffa9f927c2e69c.ExecuteAsync()
   at RazorEngine.Templating.TemplateBase.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineCore.RunTemplate(ICompiledTemplate template, TextWriter writer, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineService.Run(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.DynamicWrapperService.Run(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.Run(IRazorEngineService service, String name, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass23_0.<Run>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at RazorEngine.Templating.RazorEngineServiceExtensions.Run(IRazorEngineService service, String name, Type modelType, Object model, DynamicViewBag viewBag)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.ParagraphViewModel>
  2     @using Dynamicweb.Ecommerce.ProductCatalog
  3     @using Dynamicweb.Core.Encoders
  4     @using System.Globalization
  5     
  6     @functions {
  7     	string? DoubleToString(double? value)
  8     	{
  9     		if (value.HasValue)
 10     		{
 11     			return value.Value.ToString(CultureInfo.InvariantCulture);
 12     		}
 13     		return null;
 14     	}
 15     }
 16     
 17     @{
 18     	bool isProductDetailPage = Dynamicweb.Context.Current.Request.QueryString.AllKeys?.Contains("ProductId") ?? false;
 19     	ProductViewModel product = null;
 20     	if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
 21     	{
 22     		product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
 23     	}
 24     	else if (!string.IsNullOrEmpty(Pageview.Page.Item["DummyProduct"]?.ToString()) && Pageview.IsVisualEditorMode)
 25     	{
 26     		var pageViewModel = Dynamicweb.Frontend.ContentViewModelFactory.CreatePageInfoViewModel(Pageview.Page);
 27     		ProductListViewModel productList = pageViewModel.Item.GetValue("DummyProduct") != null ? pageViewModel.Item.GetValue("DummyProduct") as ProductListViewModel : new ProductListViewModel();
 28     
 29     		if (productList?.Products is object)
 30     		{
 31     			product = productList.Products[0];
 32     		}
 33     	}
 34     	else if (Pageview.IsVisualEditorMode)
 35     	{
 36     		product = new ProductViewModel();
 37     		product.Id = "1";
 38     		product.VariantId = "394041";
 39     		product.PurchaseMinimumQuantity = 1;
 40     		product.PurchaseQuantityStep = 1;
 41     		product.StockLevel = 10;
 42     		product.DefaultUnitId = "1";
 43     		product.ProductType = Dynamicweb.Ecommerce.Products.ProductType.Stock;
 44     		product.NeverOutOfstock = false;
 45     		product.Discontinued = false;
 46     		product.Price = new PriceViewModel()
 47     		{
 48     			Price = 99,
 49     			PriceFormatted = "99 " + Pageview.Area.EcomCurrencyId,
 50     			PriceWithoutVat = 99,
 51     			PriceWithoutVatFormatted = "99 " + Pageview.Area.EcomCurrencyId,
 52     			PriceWithVat = 99,
 53     			PriceWithVatFormatted = "99 " + Pageview.Area.EcomCurrencyId
 54     		};
 55     	}
 56     
 57     	string anonymousUsersLimitations = Pageview.AreaSettings.GetRawValueString("AnonymousUsers", "");
 58     	bool anonymousUser = Pageview.User == null;
 59     
 60     	bool hideAddToCart = anonymousUsersLimitations.Contains("cart") && anonymousUser;
 61     	hideAddToCart = Pageview.IsVisualEditorMode ? false : hideAddToCart;
 62     
 63     	bool hasEcoLabel = true;
 64     	string[] ecoLabelKeys = {
 65     	"EcoLabelShoppingWithCare1",
 66     	"EcoLabelShoppingWithCare2",
 67     	"EcoLabelShoppingWithCare3",
 68     	"EcoLabelShoppingWithCare4",
 69     	"EcoLabelShoppingWithCare5"
 70     };
 71     	if (!Pageview.IsVisualEditorMode)
 72     	{
 73     		hasEcoLabel = ecoLabelKeys.Any(key =>
 74     		product.ProductFields.TryGetValue(key, out var field) &&
 75     		field?.Value?.ToString() == "1"
 76     	);
 77     	}
 78     }
 79     @if (product is object && hideAddToCart)
 80     {
 81     	string link = product.GetProductLink(GetPageIdByNavigationTag("Shop"), false);
 82     	string ReplacementProduct = !string.IsNullOrEmpty(product.ReplacementProduct?.ProductId) ? product.ReplacementProduct.GetProduct()?.GetProductLink(GetPageIdByNavigationTag("Shop"), false) ?? "" : ""; link = !string.IsNullOrEmpty(ReplacementProduct) ? ReplacementProduct : link;
 83     	@if (!isProductDetailPage)
 84     	{
 85     		<div class="d-flex align-items-center p-0">
 86     			@if (hasEcoLabel)
 87     			{
 88     				<img class="eco-label mx-3" src="/Files/Images/EcoLabel/EcoLabel.png" alt="EcoLable" />
 89     			}
 90     			<a href="@link" class="btn btn-secondary" data-dw-button="secondary" style="white-space: nowrap" title="@Translate("Se mere")" id="AddToCartButton@(product.Id)[email protected]">
 91     				<span class="text-nowrap d-flex align-items-center justify-content-center gap-2">
 92     					@Translate("Se mere")
 93     				</span>
 94     			</a>
 95     		</div>
 96     	}
 97     }
 98     @if (product is object && !hideAddToCart)
 99     {
100     	string horizontalAlign = Model.Item.GetRawValueString("HorizontalAlignment", "");
101     	horizontalAlign = horizontalAlign == "center" ? "justify-content-center" : horizontalAlign;
102     	horizontalAlign = horizontalAlign == "end" ? "justify-content-end" : horizontalAlign;
103     	horizontalAlign = horizontalAlign == "full" ? "" : horizontalAlign;
104     
105     	bool favoritesSelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowAddToFavorites")) ? Model.Item.GetBoolean("ShowAddToFavorites") : false;
106     	bool quantitySelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowQuantitySelector")) ? Model.Item.GetBoolean("ShowQuantitySelector") : false;
107     	bool unitsSelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowUnitsSelector")) ? Model.Item.GetBoolean("ShowUnitsSelector") : false;
108     	bool hideInventory = !string.IsNullOrEmpty(Model.Item.GetString("HideInventory")) ? Model.Item.GetBoolean("HideInventory") : false;
109     	bool hideStockState = !string.IsNullOrEmpty(Model.Item.GetString("HideStockState")) ? Model.Item.GetBoolean("HideStockState") : false;
110     
111     	string iconPath = "/Files/Images/Icons/";
112     	string url = "/Default.aspx?ID=" + (GetPageIdByNavigationTag("CartService"));
113     	if (!url.Contains("LayoutTemplate"))
114     	{
115     		url += url.Contains("?") ? "&LayoutTemplate=Swift-v2_MiniCart.cshtml" : "?LayoutTemplate=Swift-v2_MiniCart.cshtml";
116     	}
117     
118     	string whenVariantsExist = Model.Item.GetRawValueString("WhenVariantsExist", "hide");
119     	string flexFill = Model.Item.GetRawValueString("HorizontalAlignment", "") == "full" ? "flex-fill" : "";
120     	string fullWidth = Model.Item.GetRawValueString("HorizontalAlignment", "") == "full" ? "w-100" : "";
121     	string addToCartIcon = Model.Item.GetRawValueString("Icon", iconPath + "cart-shopping.svg");
122     	string addToCartLabel = !addToCartIcon.Contains("_none") ? $"<span class=\"icon-2\">{ReadFile(addToCartIcon)}</span>" : "";
123     	addToCartLabel += !addToCartIcon.Contains("_none") && !Model.Item.GetBoolean("HideButtonText") ? " " : "";
124     	addToCartLabel += !Model.Item.GetBoolean("HideButtonText") ? $"<span class=\"d-none d-md-inline\">{Translate("Add to cart")}</span><span class=\"d-inline d-md-none\">{Translate("Add")}</span>" : "";
125     	bool userHasPendingQuote = Dynamicweb.Ecommerce.Common.Context.Cart != null && Dynamicweb.Ecommerce.Common.Context.Cart.IsQuote;
126     
127     	bool hasReplacementProduct = !string.IsNullOrEmpty(product.ReplacementProduct?.ProductId);
128     	string replacementProductLink = "";
129     	if (hasReplacementProduct)
130     	{
131     		replacementProductLink = product.ReplacementProduct.GetProduct().GetProductLink(GetPageIdByNavigationTag("Shop"), false);
132     	}
133     
134     	if (product.VariantInfo?.VariantInfo == null || whenVariantsExist == "disable")
135     	{
136     		string unitId = !string.IsNullOrEmpty(Dynamicweb.Context.Current.Request.Form.Get("UnitId")) ? Dynamicweb.Context.Current.Request.Form.Get("UnitId") : product.DefaultUnitId;
137     		if (string.IsNullOrEmpty(unitId) && product?.UnitOptions != null)
138     		{
139     			if (product.UnitOptions?.FirstOrDefault<UnitOptionViewModel>() != null)
140     			{
141     				unitId = product.UnitOptions.FirstOrDefault<UnitOptionViewModel>().Id;
142     			}
143     		}
144     
145     		double? stepQty = product.PurchaseQuantityStep > 0 ? product.PurchaseQuantityStep : 1;
146     		double? minQty = product.PurchaseMinimumQuantity > 0 ? product.PurchaseMinimumQuantity : 1;
147     		double? valueQty = minQty > stepQty ? minQty : stepQty;
148     		string? disableAddToCart = null;
149     		double? maxQty = null;
150     
151     		if (Dynamicweb.Context.Current.Items.Contains("ProductQuantity"))
152     		{
153     			valueQty = Convert.ToDouble(Dynamicweb.Context.Current.Items["ProductQuantity"].ToString());
154     		}
155     
156     		if (product.ProductType == Dynamicweb.Ecommerce.Products.ProductType.Stock && !product.NeverOutOfstock)
157     		{
158     			disableAddToCart = product.StockLevel <= 0 ? "" : disableAddToCart;
159     			maxQty = int.MaxValue; // Default to max int value product.StockLevel
160     		}
161     
162     		disableAddToCart = whenVariantsExist == "disable" && product.VariantInfo?.VariantInfo != null && string.IsNullOrEmpty(product.VariantId) ? "disabled" : disableAddToCart;
163     		disableAddToCart = product.Discontinued ? "disabled" : disableAddToCart;
164     
165     		if (unitsSelector && product.UnitOptions?.Count > 0)
166     		{
167     			<form method="post" action="/Default.aspx?ID=@(Pageview.Page.ID)&[email protected]" id="UnitSelectorForm_@(product.Id)_@(product.VariantId?.Replace(".", "_"))[email protected]">
168     				<input type="hidden" name="redirect" value="false">
169     				<input type="hidden" name="VariantID" value="@product.VariantId">
170     				<input type="hidden" name="UnitID" class="js-unit-id" value="@unitId">
171     			</form>
172     		}
173     
174     		if (hasReplacementProduct && !string.IsNullOrEmpty(replacementProductLink))
175     		{
176     			<div class="d-flex @fullWidth js-input-group [email protected]()">
177     				<div class="d-flex @fullWidth @horizontalAlign flex-wrap flex-lg-nowrap gap-2">
178     					<a href="@replacementProductLink"
179     						   class="btn btn-secondary btn-sm p-3 small btn-nordenta-blue @flexFill"
180     						   data-dw-button="secondary"
181     						   style="white-space: nowrap"
182     						   title="@Translate("The product is discontinued, see alternative")"
183     						   id="ReplacementProductButton@(product.Id)[email protected]">
184     						<span class="text-nowrap d-flex align-items-center justify-content-center gap-2">
185     							@Translate("The product is discontinued, see alternative")
186     						</span>
187     					</a>
188     				</div>
189     			</div>
190     		}
191     		else
192     		{
193     			<div class="d-flex @fullWidth js-input-group [email protected]()">
194     				<div class="d-flex @fullWidth @horizontalAlign flex-wrap flex-lg-nowrap gap-2">
195     					<form method="post" action="@url" class="@fullWidth" style="z-index: 1">
196     						<input type="hidden" name="redirect" value="false">
197     						<input type="hidden" name="ProductId" value="@product.Id">
198     						<input type="hidden" name="ProductName" value="@HtmlEncoder.HtmlEncode(product.Name)">
199     						<input type="hidden" name="ProductVariantName" value="@product.VariantName">
200     						<input type="hidden" name="ProductCurrency" value="@Dynamicweb.Ecommerce.Common.Context.Currency.Code">
201     						<input type="hidden" name="ProductPrice" value="@product.Price.ToStringInvariant()">
202     						<input type="hidden" name="ProductDiscount" value="@product.Discount.ToStringInvariant()">
203     						<input type="hidden" name="ProductReferer" value="component_ProductAddToCart">
204     						<input type="hidden" name="cartcmd" value="add">
205     						<input type="submit" class="d-none" onclick="event.preventDefault(); swift.Cart.Update(event)"> @* Fix for enterKey should not redirect to minicart page *@
206     
207     						@if (!string.IsNullOrEmpty(product.VariantId))
208     						{
209     							<input type="hidden" name="VariantId" value="@product.VariantId">
210     						}
211     
212     						<template class="js-step-quantity-warning">
213     							<div class="modal-header">
214     								<h1 class="modal-title fs-5">@Translate("The quantity is not valid")</h1>
215     								<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
216     							</div>
217     							<div class="modal-body">
218     								@Translate("Please select a quantity that is dividable by") @stepQty
219     							</div>
220     						</template>
221     
222     						<template class="js-min-quantity-warning">
223     							<div class="modal-header">
224     								<h1 class="modal-title fs-5">@Translate("The product could not be added to the cart")</h1>
225     								<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
226     							</div>
227     							<div class="modal-body">
228     								@Translate("The quantity is not valid. You must buy at least") @product.PurchaseMinimumQuantity
229     							</div>
230     						</template>
231     
232     						<template class="js-value-missing-warning">
233     							<div class="modal-header">
234     								<h1 class="modal-title fs-5">@Translate("No amount specified")</h1>
235     								<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
236     							</div>
237     							<div class="modal-body">
238     								@Translate("Specify an amount to add to the cart")
239     							</div>
240     						</template>
241     
242     						@if (userHasPendingQuote)
243     						{
244     							<input type="hidden" name="PendingQuote" value="true">
245     
246     							<template class="js-pending-quote-notice">
247     								<div class="modal-header">
248     									<h1 class="modal-title fs-5">@Translate("Pending Quote")</h1>
249     									<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="@Translate("Close")"></button>
250     								</div>
251     								<div class="modal-body">
252     									@Translate("You need to complete your current quote or empty the cart before adding this product to cart.")
253     								</div>
254     							</template>
255     						}
256     
257     						@if (quantitySelector || (!anonymousUser && product.VariantInfo?.VariantInfo != null) || (!anonymousUser && favoritesSelector))
258     						{
259     							<input type="hidden" id="Unit_@(product.Id)[email protected]?.Replace(".", "_")" name="UnitID" value="@unitId" />
260     						}
261     
262     						<div class="d-flex flex-wrap gap-2">
263     							@if (!quantitySelector)
264     							{
265     								<input id="Quantity_@(product.Id)[email protected]?.Replace(".", "_")" class="swift_quantity_field" name="Quantity" value="@valueQty" type="hidden" @disableAddToCart>
266     							}
267     
268     							@if (unitsSelector && product.UnitOptions?.Count > 0)
269     							{
270     								string selectedUnitName = !string.IsNullOrEmpty(unitId) && product?.UnitOptions != null ? unitId : product.UnitOptions.FirstOrDefault<UnitOptionViewModel>().Name;
271     
272     								foreach (var unitOption in product.UnitOptions)
273     								{
274     									if (unitOption.Id == unitId)
275     									{
276     										selectedUnitName = unitOption.Name;
277     									}
278     								}
279     
280     								<button class="btn btn-secondary @flexFill dropdown-toggle" data-dw-button="secondary" type="button" data-bs-toggle="dropdown" aria-expanded="false">
281     									@selectedUnitName
282     								</button>
283     
284     								<ul class="dropdown-menu swift_unit-field">
285     									@foreach (var unitOption in product.UnitOptions)
286     									{
287     										var selectedUnit = unitOption.Id == unitId ? "selected" : "";
288     
289     										<li>
290     											<button type="button" class="btn dropdown-item" data-value="@unitOption.Id" onclick="document.querySelector('#UnitSelectorForm_@(product.Id)_@(product.VariantId.Replace(".", "_"))[email protected]').querySelector('.js-unit-id').value = this.getAttribute('data-value');
291     												document.querySelector('#Unit_@(product.Id)[email protected]?.Replace(".", "_")').value = this.getAttribute('data-value');
292     												swift.PageUpdater.Update(document.querySelector('#UnitSelectorForm_@(product.Id)_@(product.VariantId?.Replace(".", "_"))[email protected]'))">
293     												<span>@unitOption.Name</span>
294     												<span>
295     													@if (unitOption.StockLevel > 0 || unitOption.NeverOutOfStock)
296     													{
297     														if (!Model.Item.GetBoolean("HideInventory") && !unitOption.NeverOutOfStock)
298     														{
299     															<span class="small text-success">@unitOption.StockLevel @Translate("In stock")</span>
300     														}
301     														else
302     														{
303     															<span class="small text-success">@Translate("In stock")</span>
304     														}
305     													}
306     													else
307     													{
308     														<span class="small text-danger">@Translate("Out of Stock")</span>
309     													}
310     												</span>
311     											</button>
312     										</li>
313     									}
314     								</ul>
315     							}
316     							@if (quantitySelector)
317     							{
318     								@RenderPartial("Components/QuantitySelector.cshtml", product)
319     							}
320     							<button type="button" onclick="swift.Cart.Update(event)" data-stock="@product.StockLevel" class="btn btn-primary @flexFill js-add-to-cart-button" data-dw-button="primary" style="white-space: nowrap" @disableAddToCart title="@Translate("Add to cart")" id="AddToCartButton@(product.Id)[email protected]">
321     								@if (!Model.Item.GetBoolean("HideButtonText"))
322     								{
323     									<span class="text-nowrap d-flex align-items-center justify-content-center gap-2">
324     										@addToCartLabel
325     									</span>
326     								}
327     								else
328     								{
329     									@addToCartLabel
330     								}
331     							</button>
332     						</div>
333     					</form>
334     					@RenderPartial("Components/OutOfStockModal.cshtml", product)
335     
336     					@if (!anonymousUser && favoritesSelector)
337     					{
338     						@RenderPartial("Components/ToggleFavorite.cshtml", product)
339     					}
340     				</div>
341     			</div>
342     		}
343     	}
344     	else if (whenVariantsExist == "modal")
345     	{
346     		string ButtonShape = Model.Item.GetRawValueString("VariantButtonShape", "square");
347     		string buttonAspectRatio = Model.Item.GetRawValueString("VariantImageAspectRatio", "56%");
348     
349     		string buttonText = Translate("Select");
350     		string variantId = !string.IsNullOrWhiteSpace(product.VariantId) ? product.VariantId : product.DefaultVariantId;
351     
352     		string variantSelectorServicePageId = !string.IsNullOrEmpty(Model.Item.GetString("VariantSelectorServicePageId")) ? Model.Item.GetLink("VariantSelectorServicePageId").PageId.ToString() : "";
353     		variantSelectorServicePageId = variantSelectorServicePageId != "" ? variantSelectorServicePageId : GetPageIdByNavigationTag("VariantSelectorService").ToString();
354     
355     		<div class="d-flex @horizontalAlign w-100 [email protected]()">
356     			@if (!anonymousUser && favoritesSelector)
357     			{
358     				@RenderPartial("Components/ToggleFavorite.cshtml", product)
359     			}
360     			<form action="/Default.aspx?ID=@variantSelectorServicePageId" data-response-target-element="DynamicModalContent" data-preloader="inline" style="z-index: 1" class="@fullWidth">
361     				<input type="hidden" name="ProductID" value="@product.Id">
362     				<input type="hidden" name="VariantID" value="@variantId">
363     				<input type="hidden" name="QuantitySelector" value="@quantitySelector.ToString()">
364     				<input type="hidden" name="HideInventory" value="@hideInventory.ToString()">
365     				<input type="hidden" name="HideStockState" value="@hideStockState.ToString()">
366     				<input type="hidden" name="ButtonLayout" value="@ButtonShape">
367     				<input type="hidden" name="ButtonAspectRatio" value="@buttonAspectRatio">
368     				<input type="hidden" name="VariantSelectorServicePage" value="@variantSelectorServicePageId">
369     				<input type="hidden" name="ViewType" value="ModalContent">
370     
371     				<button type="button" onclick="swift.PageUpdater.Update(event)" class="btn btn-primary @fullWidth" data-dw-button="primary" title="@Translate("Select")" data-bs-toggle="modal" data-bs-target="#DynamicModal" id="OpenVariantSelectorModal@(product.Id)[email protected]">@buttonText</button>
372     			</form>
373     		</div>
374     	}
375     }
376