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_4eedc4a52eaa4d7ca0e78b380a27493b.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>
@using Dynamicweb.Ecommerce.ProductCatalog
@using Dynamicweb.Core.Encoders
@using System.Globalization
@* for custom link to dealers from json file *@
@using FlexMedia.Plastmo.Integration.Frontend.Models
@functions {
	string? DoubleToString(double? value)
	{
		if (value.HasValue)
		{
			return value.Value.ToString(CultureInfo.InvariantCulture);
		}
		return null;
	}
}
@{
	ProductViewModel product = null;
	if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
	{
		product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
	}
	else if (!string.IsNullOrEmpty(Pageview.Page.Item["DummyProduct"]?.ToString()) && Pageview.IsVisualEditorMode)
	{
		var pageViewModel = Dynamicweb.Frontend.ContentViewModelFactory.CreatePageInfoViewModel(Pageview.Page);
		ProductListViewModel productList = pageViewModel.Item.GetValue("DummyProduct") != null ? pageViewModel.Item.GetValue("DummyProduct") as ProductListViewModel : new ProductListViewModel();
		if (productList?.Products is object)
		{
			product = productList.Products[0];
		}
	} else if (Pageview.IsVisualEditorMode) {
		product = new ProductViewModel();
		product.Id = "1";
		product.VariantId = "394041";
		product.PurchaseMinimumQuantity = 1;
		product.PurchaseQuantityStep = 1;
		product.StockLevel = 10;
		product.DefaultUnitId = "1";
		product.ProductType = Dynamicweb.Ecommerce.Products.ProductType.Stock;
		product.NeverOutOfstock = false;
		product.Discontinued = false;
		product.Price = new PriceViewModel() {
			Price = 99,
			PriceFormatted = "99 " + Pageview.Area.EcomCurrencyId,
			PriceWithoutVat = 99,
			PriceWithoutVatFormatted = "99 " + Pageview.Area.EcomCurrencyId,
			PriceWithVat = 99,
			PriceWithVatFormatted = "99 " + Pageview.Area.EcomCurrencyId
		};
	}
	string anonymousUsersLimitations = Pageview.AreaSettings.GetRawValueString("AnonymousUsers", "");
	bool anonymousUser = Pageview.User == null;
	bool hideAddToCart = anonymousUsersLimitations.Contains("cart") && anonymousUser;
	hideAddToCart = Pageview.IsVisualEditorMode ? false : hideAddToCart;
@* for custom link to dealers from json file *@
	bool hasDealer = false;
	bool singleDealer = false;
	List<string> DealersIDs = new();
	if(!Pageview.IsVisualEditorMode){
		string fieldName = "Dealers";
		var fieldOptions = Dynamicweb.Ecommerce.Services.FieldOptions.GetOptionsByFieldId(fieldName);
		bool fieldExist = product.ProductFields.TryGetValue(fieldName, out FieldValueViewModel field);
		if (fieldExist && field?.Value != null){
			List<FieldOptionValueViewModel> options = field?.Value as List<FieldOptionValueViewModel>;
			DealersIDs = options.Select(o => o.Value).ToList();
		}
	}
	var DealerList = FlexMedia.Plastmo.Integration.Frontend.DealersHelper.GetDealers(DealersIDs,true);
//	FlexMedia.Plastmo.Integration.Frontend.GetDealer(string dealerId, bool cached = true)	
	int cntLinks = 0;
	string firstDealerWithLink = "";
	foreach (var dealer in DealerList){
		if(!string.IsNullOrEmpty(dealer.DealerAddtoCartLink) || !string.IsNullOrEmpty(dealer.DealerProductLink)){
			cntLinks++;
			firstDealerWithLink = dealer.DealerID;
		}
	}
	if(DealerList.Count()>=1 && (cntLinks>=1)){hasDealer=true;}
	if(DealerList.Count()==1 || (cntLinks==1)){singleDealer=true;}
		//	foreach (var dealer in DealerList){}
}
@if (product is object && !hideAddToCart)
{
	string horizontalAlign = Model.Item.GetRawValueString("HorizontalAlignment", "");
	horizontalAlign = horizontalAlign == "center" ? "justify-content-center" : horizontalAlign;
	horizontalAlign = horizontalAlign == "end" ? "justify-content-end" : horizontalAlign;
	horizontalAlign = horizontalAlign == "full" ? "" : horizontalAlign;
	bool favoritesSelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowAddToFavorites")) ? Model.Item.GetBoolean("ShowAddToFavorites") : false;
	bool quantitySelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowQuantitySelector")) ? Model.Item.GetBoolean("ShowQuantitySelector") : false;
	bool unitsSelector = !string.IsNullOrEmpty(Model.Item.GetString("ShowUnitsSelector")) ? Model.Item.GetBoolean("ShowUnitsSelector") : false;
	bool hideInventory = !string.IsNullOrEmpty(Model.Item.GetString("HideInventory")) ? Model.Item.GetBoolean("HideInventory") : false;
	bool hideStockState = !string.IsNullOrEmpty(Model.Item.GetString("HideStockState")) ? Model.Item.GetBoolean("HideStockState") : false;
	string iconPath = "/Files/Images/Icons/";
	string url = "/Default.aspx?ID=" + (GetPageIdByNavigationTag("CartService"));
	if (!url.Contains("LayoutTemplate"))
	{
		url += url.Contains("?") ? "&LayoutTemplate=Swift-v2_MiniCart.cshtml" : "?LayoutTemplate=Swift-v2_MiniCart.cshtml";
	}
	string whenVariantsExist = Model.Item.GetRawValueString("WhenVariantsExist", "hide");
	string flexFill = Model.Item.GetRawValueString("HorizontalAlignment", "") == "full" ? "flex-fill" : "";
	string fullWidth = Model.Item.GetRawValueString("HorizontalAlignment", "") == "full" ? "w-100" : "";
	string addToCartIcon = Model.Item.GetRawValueString("Icon", iconPath + "cart-shopping.svg");
	string addToCartLabel = !addToCartIcon.Contains("_none") ? $"<span class=\"icon-2\">{ReadFile(addToCartIcon)}</span>" : "";
	addToCartLabel += !addToCartIcon.Contains("_none") && !Model.Item.GetBoolean("HideButtonText") ? " " : "";
	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>" : "";
	bool userHasPendingQuote = Dynamicweb.Ecommerce.Common.Context.Cart != null && Dynamicweb.Ecommerce.Common.Context.Cart.IsQuote;
// Dealer Direct Link
// if no dealer then no link
// if only 1 dealer then "add to cart"
// if not Plastmo the "show at dealer"
// if multible then [open list] and "add to cart" for each
// if multible then [open list] and "show at dealer" for each
<small title="Dealers" style="display:none;">
	hideAddToCart:@hideAddToCart<br>
	product.StockLevel:@product.StockLevel<br>
	DealerList.Count():@DealerList.Count()<br>
	DealerList.FirstOrDefault():@DealerList.FirstOrDefault()<br>
	cntLinks:@cntLinks<br>
	firstDealerWithLink:@firstDealerWithLink<br>	
	hasDealer:@hasDealer<br>
	singleDealer:@singleDealer<br>
	DealersIDs:@DealersIDs<br>
</small>
// foreach (var dealer in DealerList){<small style="display:none;">@dealer.DealerIsPlastmo @dealer.DealerCountry @dealer.DealerDomain</small>}
<small style="display:none;" title="hidden under construction">
@{
	// if multible list
	if(!Pageview.IsVisualEditorMode && hasDealer && !singleDealer){
		<div class="dealerlist">
			<div class="title btn btn-outline-primary" title="kun test, men klik" onclick="this.parentNode.getElementsByClassName('list')[0].classList.toggle('show');">Køb hos en forhandler</div>
			<div class="list">
				@foreach (var dealer in DealerList){
					bool hasAddTocartLink = !string.IsNullOrEmpty(dealer.DealerAddtoCartLink) ? true : false;					
					bool hasProdLink = !string.IsNullOrEmpty(dealer.DealerProductLink) ? true : false;					
					<div did="@dealer.DealerID" dn="@dealer.DealerName" dc="@dealer.DealerCountry" dip="@dealer.DealerIsPlastmo">
						@if(hasAddTocartLink){
							string AddTocartLink = dealer.DealerAddtoCartLink.Replace("[ProductID]",product.Id).Replace("[VariantId]",product.VariantId);
							<a href="@AddTocartLink" class="btn btn-primary" title="kun test">Køb hos @dealer.DealerName</a>
						}
						@if(hasProdLink){
							string prodLink = dealer.DealerProductLink.Replace("[ProductID]",product.Id).Replace("[VariantId]",product.VariantId);
							<a href="@prodLink" class="btn btn-outline-primary" title="kun test">se hos @dealer.DealerName</a>
						}
					</div>
				}
			</div>	
		</div>
		<style>
			.dealerlist{
				position:relative;
				z-index:1;
				display:block;
				cursor:pointer;
			}
			.dealerlist .list{
				display:none;
			}
			.dealerlist .list.show{
				display:block;
			}
		</style>
	}
	// if only one dealer
	if(!Pageview.IsVisualEditorMode && hasDealer && singleDealer){
//		var dealer = DealerList.First(item => item.DealerID == firstDealerWithLink).dealer;
		var dealer = DealerList.FirstOrDefault();
		<div class="dealersingle" did="@dealer.DealerID" dn="@dealer.DealerName" dc="@dealer.DealerCountry" dip="@dealer.DealerIsPlastmo">
			<span class="btn btn-primary" title="kun test">Køb nu hos @dealer.DealerName</span>
			<span class="btn btn-outline-primary" title="kun test">se hos @dealer.DealerName</span>
		</div>
		<style>
			.dealersingle{
				position:relative;
				z-index:1;
				display:block;
				cursor:pointer;
			}
		</style>
	}
}
</small>
	if (product.VariantInfo?.VariantInfo == null || whenVariantsExist == "disable")
	{
		string unitId = !string.IsNullOrEmpty(Dynamicweb.Context.Current.Request.Form.Get("UnitId")) ? Dynamicweb.Context.Current.Request.Form.Get("UnitId") : product.DefaultUnitId;
		if (string.IsNullOrEmpty(unitId) && product?.UnitOptions != null)
		{
			if (product.UnitOptions?.FirstOrDefault<UnitOptionViewModel>() != null)
			{
				unitId = product.UnitOptions.FirstOrDefault<UnitOptionViewModel>().Id;
			}
		}
		double? stepQty = product.PurchaseQuantityStep > 0 ? product.PurchaseQuantityStep : 1;
		double? minQty = product.PurchaseMinimumQuantity > 0 ? product.PurchaseMinimumQuantity : 1;
		double? valueQty = minQty > stepQty ? minQty : stepQty;
		string? disableAddToCart = null;
		double? maxQty = null;
		if (Dynamicweb.Context.Current.Items.Contains("ProductQuantity"))
		{
			valueQty = Convert.ToDouble(Dynamicweb.Context.Current.Items["ProductQuantity"].ToString());
		}
		if (product.ProductType == Dynamicweb.Ecommerce.Products.ProductType.Stock && !product.NeverOutOfstock)
		{
			disableAddToCart = product.StockLevel <= 0 ? "disabled" : disableAddToCart;
			maxQty = product.StockLevel;
		}
		disableAddToCart = whenVariantsExist == "disable" && product.VariantInfo?.VariantInfo != null && string.IsNullOrEmpty(product.VariantId) ? "disabled" : disableAddToCart;
		disableAddToCart = product.Discontinued ? "disabled" : disableAddToCart;
		if (unitsSelector && product.UnitOptions?.Count > 0)
		{
			<form method="post" action="/Default.aspx?ID=@(Pageview.Page.ID)&ProductId=@product.Id" id="UnitSelectorForm_@(product.Id)_@(product.VariantId?.Replace(".", "_"))_@Model.ID">
				<input type="hidden" name="redirect" value="false">
				<input type="hidden" name="VariantID" value="@product.VariantId">
				<input type="hidden" name="UnitID" class="js-unit-id" value="@unitId">
			</form>
		}
		<div class="d-flex @fullWidth js-input-group item_@Model.Item.SystemName.ToLower()">
			<div class="d-flex @fullWidth @horizontalAlign flex-wrap flex-lg-nowrap gap-2">
				<form method="post" action="@url" class="@fullWidth" style="z-index: 1">
					<input type="hidden" name="redirect" value="false">
					<input type="hidden" name="ProductId" value="@product.Id">
					<input type="hidden" name="ProductName" value="@HtmlEncoder.HtmlEncode(product.Name)">
					<input type="hidden" name="ProductVariantName" value="@product.VariantName">
					<input type="hidden" name="ProductCurrency" value="@Dynamicweb.Ecommerce.Common.Context.Currency.Code">
					<input type="hidden" name="ProductPrice" value="@product.Price.ToStringInvariant()">
					<input type="hidden" name="ProductDiscount" value="@product.Discount.ToStringInvariant()">
					<input type="hidden" name="ProductReferer" value="component_ProductAddToCart">
					<input type="hidden" name="cartcmd" value="add">
					<input type="submit" class="d-none" onclick="event.preventDefault(); swift.Cart.Update(event)"> @* Fix for enterKey should not redirect to minicart page *@
					@if (!string.IsNullOrEmpty(product.VariantId))
					{
						<input type="hidden" name="VariantId" value="@product.VariantId">
					}
					<template class="js-step-quantity-warning">
						<div class="modal-header">
							<h1 class="modal-title fs-5">@Translate("The quantity is not valid")</h1>
							<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
						</div>
						<div class="modal-body">
							@Translate("Please select a quantity that is dividable by") @stepQty
						</div>
					</template>
					<template class="js-min-quantity-warning">
						<div class="modal-header">
							<h1 class="modal-title fs-5">@Translate("The product could not be added to the cart")</h1>
							<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
						</div>
						<div class="modal-body">
							@Translate("The quantity is not valid. You must buy at least") @product.PurchaseMinimumQuantity
						</div>
					</template>
					<template class="js-value-missing-warning">
						<div class="modal-header">
							<h1 class="modal-title fs-5">@Translate("No amount specified")</h1>
							<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
						</div>
						<div class="modal-body">
							@Translate("Specify an amount to add to the cart")
						</div>
					</template>
					@if (userHasPendingQuote)
					{
						<input type="hidden" name="PendingQuote" value="true">
						<template class="js-pending-quote-notice">
							<div class="modal-header">
								<h1 class="modal-title fs-5">@Translate("Pending Quote")</h1>
								<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="@Translate("Close")"></button>
							</div>
							<div class="modal-body">
								@Translate("You need to complete your current quote or empty the cart before adding this product to cart.")
							</div>
						</template>
					}
					@if (quantitySelector || (!anonymousUser && product.VariantInfo?.VariantInfo != null) || (!anonymousUser && favoritesSelector))
					{
						<input type="hidden" id="Unit_@(product.Id)_@product.VariantId?.Replace(".", "_")" name="UnitID" value="@unitId" />
					}
					<div class="d-flex flex-wrap gap-2">
						@if (!quantitySelector)
						{
							<input id="Quantity_@(product.Id)_@product.VariantId?.Replace(".", "_")" class="swift_quantity_field" name="Quantity" value="@valueQty" type="hidden" @disableAddToCart>
						}
						@if (unitsSelector && product.UnitOptions?.Count > 0)
						{
							string selectedUnitName = !string.IsNullOrEmpty(unitId) && product?.UnitOptions != null ? unitId : product.UnitOptions.FirstOrDefault<UnitOptionViewModel>().Name;
							foreach (var unitOption in product.UnitOptions)
							{
								if (unitOption.Id == unitId)
								{
									selectedUnitName = unitOption.Name;
								}
							}
							<button class="btn btn-secondary @flexFill dropdown-toggle" data-dw-button="secondary" type="button" data-bs-toggle="dropdown" aria-expanded="false">
								@selectedUnitName
							</button>
							<ul class="dropdown-menu swift_unit-field">
								@foreach (var unitOption in product.UnitOptions)
								{
									var selectedUnit = unitOption.Id == unitId ? "selected" : "";
									<li>
										<button type="button" class="btn dropdown-item" data-value="@unitOption.Id" onclick="document.querySelector('#UnitSelectorForm_@(product.Id)_@(product.VariantId.Replace(".", "_"))_@Model.ID').querySelector('.js-unit-id').value = this.getAttribute('data-value');
																				document.querySelector('#Unit_@(product.Id)_@product.VariantId?.Replace(".", "_")').value = this.getAttribute('data-value');
																				swift.PageUpdater.Update(document.querySelector('#UnitSelectorForm_@(product.Id)_@(product.VariantId?.Replace(".", "_"))_@Model.ID'))">
											<span>@unitOption.Name</span>
											<span>
												@if (unitOption.StockLevel > 0 || unitOption.NeverOutOfStock)
												{
													if (!Model.Item.GetBoolean("HideInventory") && !unitOption.NeverOutOfStock)
													{
														<span class="small text-success">@unitOption.StockLevel @Translate("In stock")</span>
													}
													else
													{
														<span class="small text-success">@Translate("In stock")</span>
													}
												}
												else
												{
													<span class="small text-danger">@Translate("Out of Stock")</span>
												}
											</span>
										</button>
									</li>
								}
							</ul>
						}
						@if (quantitySelector)
						{
							@RenderPartial("Components/QuantitySelector.cshtml", product)
						}
						<button type="button" onclick="swift.Cart.Update(event)" 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)_@Pageview.CurrentParagraph.ID">
							@if (!Model.Item.GetBoolean("HideButtonText"))
							{
								<span class="text-nowrap d-flex align-items-center justify-content-center gap-2">
									@addToCartLabel
								</span>
							}
							else
							{
								@addToCartLabel
							}
						</button>
					</div>
				</form>
				@if (!anonymousUser && favoritesSelector)
				{
					@RenderPartial("Components/ToggleFavorite.cshtml", product)
				}
			</div>
		</div>
	}
	else if (whenVariantsExist == "modal")
	{
		string ButtonShape = Model.Item.GetRawValueString("VariantButtonShape", "square");
		string buttonAspectRatio = Model.Item.GetRawValueString("VariantImageAspectRatio", "56%");
		string buttonText = Translate("Select");
		string variantId = !string.IsNullOrWhiteSpace(product.VariantId) ? product.VariantId : product.DefaultVariantId;
		string variantSelectorServicePageId = !string.IsNullOrEmpty(Model.Item.GetString("VariantSelectorServicePageId")) ? Model.Item.GetLink("VariantSelectorServicePageId").PageId.ToString() : "";
		variantSelectorServicePageId = variantSelectorServicePageId != "" ? variantSelectorServicePageId : GetPageIdByNavigationTag("VariantSelectorService").ToString();
		<div class="d-flex @horizontalAlign w-100 item_@Model.Item.SystemName.ToLower()">
			@if (!anonymousUser && favoritesSelector)
			{
				@RenderPartial("Components/ToggleFavorite.cshtml", product)
			}
			<form action="/Default.aspx?ID=@variantSelectorServicePageId" data-response-target-element="DynamicModalContent" data-preloader="inline" style="z-index: 1" class="@fullWidth">
				<input type="hidden" name="ProductID" value="@product.Id">
				<input type="hidden" name="VariantID" value="@variantId">
				<input type="hidden" name="QuantitySelector" value="@quantitySelector.ToString()">
				<input type="hidden" name="HideInventory" value="@hideInventory.ToString()">
				<input type="hidden" name="HideStockState" value="@hideStockState.ToString()">
				<input type="hidden" name="ButtonLayout" value="@ButtonShape">
				<input type="hidden" name="ButtonAspectRatio" value="@buttonAspectRatio">
				<input type="hidden" name="VariantSelectorServicePage" value="@variantSelectorServicePageId">
				<input type="hidden" name="ViewType" value="ModalContent">
				<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)_@Pageview.CurrentParagraph.ID">@buttonText</button>
			</form>
		</div>
	}
}