Error executing template "Designs/Swift/Paragraph/Swift_ProductStaticVariants.cshtml"
System.NullReferenceException: Object reference not set to an instance of an object.
   at CompiledRazorTemplates.Dynamic.RazorEngine_b5b090abbaf248b78f984810c4fcab0f.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.Ecommerce.Variants
  4     @using Dynamicweb.Frontend
  5     @using System.IO
  6     
  7     @{
  8     	ProductViewModel product = null;
  9     	if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
 10     	{
 11     		product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
 12     	}
 13     	else if (Pageview.Page.Item["DummyProduct"] != null && Pageview.IsVisualEditorMode)
 14     	{
 15     		var pageViewModel = Dynamicweb.Frontend.ContentViewModelFactory.CreatePageInfoViewModel(Pageview.Page);
 16     		ProductListViewModel productList = pageViewModel.Item.GetValue("DummyProduct") != null ? pageViewModel.Item.GetValue("DummyProduct") as ProductListViewModel : new ProductListViewModel();
 17     
 18     		if (productList?.Products is object)
 19     		{
 20     			product = productList.Products[0];
 21     		}
 22     	}
 23     }
 24     
 25     @if (product is object)
 26     {
 27     	string horizontalAlign = Model.Item.GetRawValueString("HorizontalAlignment", "");
 28     	horizontalAlign = horizontalAlign == "center" ? "align-items-center text-center" : horizontalAlign;
 29     	horizontalAlign = horizontalAlign == "end" ? "align-items-end text-end" : horizontalAlign;
 30     
 31     	bool hideGroupHeaders = Model.Item.GetBoolean("HideGroupHeaders");
 32     	string variantsLayout = Model.Item.GetRawValueString("Layout", "images");
 33     
 34     	bool isLazyLoadingForProductInfoEnabled = Dynamicweb.Core.Converter.ToBoolean(Dynamicweb.Context.Current.Items["IsLazyLoadingForProductInfoEnabled"]);
 35     
 36     	string anonymousUsersLimitations = Pageview.AreaSettings.GetRawValueString("AnonymousUsers", "");
 37     	bool anonymousUser = Pageview.User == null;
 38     	bool hidePrice = anonymousUsersLimitations.Contains("price") && anonymousUser || Pageview.AreaSettings.GetBoolean("ErpDownHidePrices") && !Dynamicweb.Core.Converter.ToBoolean(Dynamicweb.Context.Current.Items["IsWebServiceConnectionAvailable"]);
 39     
 40     	var selectedGroups = Model.Item.GetList("Groups")?.GetRawValue().OfType<string>();
 41     	int showMaxVariants = Model.Item.GetInt32("MaxVariantsToRender") != 0 ? Model.Item.GetInt32("MaxVariantsToRender") : 1;
 42     
 43     	if (product.VariantGroups().Count != 0)
 44     	{
 45     		<div class="d-flex flex-column @horizontalAlign item_@Model.Item.SystemName.ToLower()">
 46     			@foreach (var variantGroup in product.VariantGroups())
 47     			{
 48     				int variantsCount = 0;
 49     				string groupId = variantGroup.Id;
 50     				var displayType = variantGroup.DisplayType;
 51     
 52     				<div>
 53     					@foreach (var selectedGroupId in selectedGroups)
 54     					{
 55     						if (!hideGroupHeaders && groupId == selectedGroupId)
 56     						{
 57     							<h3 class="h6 m-0">@variantGroup.Name</h3>
 58     						}
 59     					}
 60     					<div class="d-flex gap-2 mb-2">
 61     						@foreach (var variant in variantGroup.Options)
 62     						{
 63     							foreach (var selectedGroupId in selectedGroups)
 64     							{
 65     								if (groupId == selectedGroupId)
 66     								{
 67     									var optionsCount = variantGroup.Options.Count();
 68     
 69     									if (variantsCount < showMaxVariants)
 70     									{
 71     										<article title="@product.Name @variant.Name @variant.Id" class="d-flex" style="z-index: 1">
 72     											@{
 73     												string defaultProductImage = Dynamicweb.Context.Current.Server.UrlEncode(product.DefaultImage.Value);
 74     												string variantImage = Dynamicweb.Context.Current.Server.UrlEncode(variant.Image.Value);
 75     												string defaultPrice = !hidePrice ? product.Price.PriceFormatted : "0";
 76     												string variantPrice = !hidePrice ? product.Price.PriceFormatted : "0";
 77     												displayType = displayType == VariantGroupDisplayType.NothingSelected && !string.IsNullOrEmpty(variant.Color) ? VariantGroupDisplayType.VariantColor : displayType;
 78     												displayType = displayType == VariantGroupDisplayType.NothingSelected && string.IsNullOrEmpty(variant.OptionImage.Value) && string.IsNullOrEmpty(variant.Color) ? VariantGroupDisplayType.VariantName : displayType;
 79     												displayType = displayType == VariantGroupDisplayType.NothingSelected && !string.IsNullOrEmpty(variant.OptionImage.Value) ? VariantGroupDisplayType.VariantOptionImage : displayType;
 80     
 81     
 82     												if (variantsLayout == "images")
 83     												{
 84     													switch (displayType)
 85     													{
 86     														case VariantGroupDisplayType.VariantImage:
 87     															if (isLazyLoadingForProductInfoEnabled)
 88     															{
 89     																<figure class="w-100 d-block m-0" data-price-formatted="" 
 90     																		onmouseover="swift.StaticVariants.SwitchProduct(event, '@product.Id', this.getAttribute('data-price-formatted'), '@variantImage'); event.stopPropagation();" 
 91     																		onmouseout="swift.StaticVariants.SwitchProduct(event, '@product.Id', this.getAttribute('data-price-formatted'), '@defaultProductImage')"
 92     																		style="z-index: 1">
 93     																	<div class="d-flex align-items-center justify-content-center">
 94     																		<img src="/admin/public/GetImage.ashx?image=@variantImage&width=75&height=75&crop=5&FillCanvas=true&format=webp" height="75" width="75" class="p-1 text-small w-100 h-100" loading="lazy" decoding="async" alt="@product.Name, @variant.Name" style="z-index: 1">
 95     																	</div>
 96     																</figure>
 97     															}
 98     															else
 99     															{
100     																<figure class="w-100 d-block m-0" 
101     																		onmouseover="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@defaultPrice', '@variantImage')" 
102     																		onmouseout="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@variantPrice', '@defaultProductImage')" 
103     																		style="z-index: 1">
104     																	<div class="d-flex align-items-center justify-content-center">
105     																		<img src="/admin/public/GetImage.ashx?image=@variantImage&width=75&height=75&crop=5&FillCanvas=true&format=webp" height="75" width="75" class="p-1 text-small w-100 h-100" loading="lazy" decoding="async" alt="@product.Name, @variant.Name">
106     																	</div>
107     																</figure>
108     															}
109     															break;
110     														case VariantGroupDisplayType.VariantColor:
111     															if (!string.IsNullOrEmpty(variant.Color))
112     															{
113     																<span class="colorbox border" style="background-color: @variant.Color"></span>
114     															}
115     															else if (!string.IsNullOrEmpty(variant.OptionImage.Value) && string.IsNullOrEmpty(variant.Color))
116     															{
117     																<img src="/Admin/Public/GetImage.ashx?image=@(variant.OptionImage.Value)&width=40&format=webp" class="border" style="width: 42px; height: 42px;">
118     															}
119     															else
120     															{
121     																<div class="d-flex align-items-center justify-content-center">
122     																	@variant.Name
123     																</div>
124     															}
125     															break;
126     														case VariantGroupDisplayType.VariantName:
127     															<div class="d-flex align-items-center justify-content-center">
128     																@variant.Name
129     															</div>
130     															break;
131     														case VariantGroupDisplayType.VariantOptionImage:
132     															if (!string.IsNullOrEmpty(variant.OptionImage.Value))
133     															{
134     																<img src="/Admin/Public/GetImage.ashx?image=@(variant.OptionImage.Value)&width=42&format=webp" style="width: 42px; height: 42px;">
135     															}
136     															else
137     															{
138     																<span class="colorbox border" style="background-color:@variant.Color;"></span>
139     															}
140     															break;
141     														case VariantGroupDisplayType.NothingSelected:
142     															<span class="colorbox border" style="background-color: @variant.Color"></span>
143     															break;
144     														default:
145     															<div class="d-flex align-items-center justify-content-center">
146     																@variant.Name
147     															</div>
148     															break;
149     													}
150     
151     												}
152     												else if (variantsLayout == "swatches")
153     												{
154     													if (!string.IsNullOrEmpty(variant.Color))
155     													{
156     														<span class="colorbox colorbox-sm rounded-circle border me-1" style="background-color: @variant.Color" 
157     															onmouseover="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@defaultPrice', '@variantImage')" 
158     															onmouseout="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@variantPrice', '@defaultProductImage')">
159     														</span>
160     													}
161     													else if (!string.IsNullOrEmpty(variant.OptionImage.Value) && string.IsNullOrEmpty(variant.Color))
162     													{
163     														<span class="ratio ratio-1x1 colorbox-sm rounded-circle border me-1 overflow-hidden"
164     															onmouseover="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@defaultPrice', '@variantImage')" 
165     															onmouseout="swift.StaticVariants.SwitchProduct(event, '@product.Id', '@variantPrice', '@defaultProductImage')">
166     															<img src="/Admin/Public/GetImage.ashx?image=@(variant.OptionImage.Value)&width=42&format=webp">
167     														</span>
168     													}
169     													else
170     													{
171     														<div class="d-flex align-items-center justify-content-center">
172     															@variant.Name
173     														</div>
174     													}
175     												}
176     
177     												<div class="visually-hidden">
178     													<h4>@Translate("Variant Name")</h4>
179     													<p>@product.Name, @variant.Name</p>
180     													@if (!hidePrice)
181     													{
182     														<h4>@Translate("Variant Price")</h4>
183     														if (isLazyLoadingForProductInfoEnabled)
184     														{
185     															<p><span class="text-price js-text-price"></span></p>
186     														}
187     														else
188     														{
189     															<p><span class="text-price">@product.Price.PriceFormatted</span></p>
190     														}
191     													}
192     												</div>
193     											}
194     										</article>
195     
196     										variantsCount++;
197     
198     										if (variantsCount == showMaxVariants && optionsCount != showMaxVariants)
199     										{
200     											int left = optionsCount - showMaxVariants;
201     											<div class="variant-option ms-1 d-flex justify-content-center align-items-center">
202     												<span>+@left</span>
203     											</div>
204     										}
205     									}
206     
207     								}
208     							}
209     						}
210     
211     						@if (variantsCount == 0 && Pageview.IsVisualEditorMode)
212     						{
213     							<div class="alert alert-dark m-0">@Translate("No variants available")</div>
214     						}
215     					</div>
216     				</div>
217     			}
218     		</div>
219     	}
220     }
221     else if (Pageview.IsVisualEditorMode)
222     {
223     	<div class="alert alert-dark m-0">@Translate("No products available")</div>
224     }
225