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Error executing template "Designs/Swift/Paragraph/Finixa_ProductFieldDisplayGroupsAccordion.cshtml"
System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at CompiledRazorTemplates.Dynamic.RazorEngine_7e0f733c31084a129a37c0258ce9e1ba.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 System.Linq
  4     
  5     @functions {
  6     
  7         class ContentSetting
  8         {
  9             public FieldGroupViewModel FieldDisplayGroup { get; set; }
 10             public string LayoutPath { get; set; }
 11     
 12             public ContentSetting(FieldGroupViewModel fieldDisplayGroup, string layoutPath)
 13             {
 14                 FieldDisplayGroup = fieldDisplayGroup;
 15                 LayoutPath = GetLayoutPathFormatted(layoutPath);
 16             }
 17         }
 18     
 19         ProductViewModel GetProduct()
 20         {
 21             ProductViewModel product = null;
 22     
 23             if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
 24             {
 25                 product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
 26             }
 27     
 28             return product;
 29         }
 30     
 31         List<ContentSetting> GetContentSettings(ProductViewModel product)
 32         {
 33             var displayGroups = GetDisplayGroups(product);
 34             string defaultLayout = Model.Item.GetRawValueString("Layout", "list");
 35             var contentSettings = displayGroups.Select(displayGroup => new ContentSetting(displayGroup, defaultLayout)).ToList();
 36             bool layoutsCustomized = Model.Item.GetBoolean("CustomizeLayouts");
 37     
 38             return layoutsCustomized ? GetContentSettingsCustomizedLayoutSelection(contentSettings) : contentSettings;
 39         }
 40     
 41         List<FieldGroupViewModel> GetDisplayGroups(ProductViewModel product)
 42         {
 43             bool hideFieldsWithZeroValue = Model.Item.GetBoolean("HideFieldsWithZeroValue");
 44             var selectedDisplayGroupSystemName = Model.Item.GetList("FieldDisplayGroups")?.GetRawValue().OfType<string>();
 45             var displayGroups = product.GetProductDisplayGroupFieldsByGroupSystemNames(selectedDisplayGroupSystemName, hideFieldsWithZeroValue);
 46     
 47             return displayGroups.ToList();
 48         }
 49     
 50         List<ContentSetting> GetContentSettingsCustomizedLayoutSelection(List<ContentSetting> contentSettings)
 51         {
 52             var selections = Model.Item.GetItems("FieldDisplayGroupLayoutSelector");
 53     
 54             foreach (var contentSetting in contentSettings)
 55             {
 56                 foreach (var selection in selections)
 57                 {
 58                     string displayGroupSystemName = string.Empty;
 59                     string layoutPath = string.Empty;
 60     
 61                     foreach (var field in selection.Fields)
 62                     {
 63                         displayGroupSystemName = field.SystemName == "FieldDisplayGroups" ? field.GetRawValueString() : displayGroupSystemName;
 64                         layoutPath = field.SystemName == "Layout" ? field.GetRawValueString() : layoutPath;
 65                     }
 66     
 67                     if (displayGroupSystemName == contentSetting.FieldDisplayGroup.SystemName)
 68                     {
 69                         contentSetting.LayoutPath = GetLayoutPathFormatted(layoutPath);
 70                     }
 71                 }
 72             }
 73     
 74             return contentSettings;
 75         }
 76     
 77         public static string GetLayoutPathFormatted(string layout)
 78         {
 79             string layoutPathInCapitalCase = layout[0].ToString().ToUpper() + layout.Substring(1);
 80             return $"Components/Specifications/{layoutPathInCapitalCase}.cshtml";
 81         }
 82     
 83     }
 84     
 85     @{
 86         var product = GetProduct();
 87     
 88         if (product is object)
 89         {
 90             var accordionContentSettings = GetContentSettings(product);
 91     
 92             string title = Model.Item.GetString("Title");
 93             bool hideLabels = Model.Item.GetBoolean("HideFieldLabels");
 94             bool hideTitle = Model.Item.GetBoolean("HideTitle");
 95             string titleFontSize = Model.Item.GetRawValueString("TitleFontSize", "display-4");
 96             var templateParams = new Dictionary<string, object>
 97             {
 98                 {"Size", "compact" },
 99                 { "HideGroupHeaders", true },
100                 { "HideTitle", true }
101             };
102     
103             string theme = !string.IsNullOrWhiteSpace(Model.Item.GetRawValueString("Theme")) ? " theme " + Model.Item.GetRawValueString("Theme").Replace(" ", "").Trim().ToLower() : "";
104             string gapCss = "gap-2";
105             string contentPadding = Model.Item.GetRawValueString("ContentPadding", "");
106             contentPadding = contentPadding == "none" ? string.Empty : contentPadding;
107             contentPadding = contentPadding == "small" ? " p-2 p-md-3" : contentPadding;
108             contentPadding = contentPadding == "large" ? " p-4 p-md-5" : contentPadding;
109     
110             <div class="h-100@(theme)@(contentPadding) item_@Model.Item.SystemName.ToLower()">
111                 <div class="grid @(gapCss)">
112                     @if (!hideTitle && accordionContentSettings.Any())
113                     {
114                         <h2 class="g-col-12 @titleFontSize">Frequent Asked Questions</h2>
115                     }
116                     <div class="g-col-12">
117                         <div class="accordion accordion-flush w-100" id="Specifications_@Model.ID">
118                             @foreach (var contentSetting in accordionContentSettings)
119                             {
120                                 foreach (var field in contentSetting.FieldDisplayGroup.Fields.Select((value, index) => new { value, index }))
121                                 {
122                                     if (field.index % 2 == 0)
123                                     {
124                                         var id = Guid.NewGuid().ToString();
125                                         string groupHeadingId = $"SpecificationHeading_{Model.ID}_{id}";
126                                         string groupItemId = $"SpecificationItem_{Model.ID}_{id}";
127     
128                                         <div class="accordion-item">
129                                             <h2 class="accordion-header" id="@groupHeadingId">
130                                                 <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#@groupItemId" aria-expanded="false" aria-controls="@groupItemId">
131                                                     @field.value.Value
132                                                 </button>
133                                             </h2>
134     
135                                             <div id="@groupItemId" class="accordion-collapse collapse" aria-labelledby="@groupHeadingId" data-bs-parent="#Specifications_@Model.ID">
136                                                 <div class="accordion-body">
137                                                     <span>@contentSetting.FieldDisplayGroup.Fields[field.index + 1].Value</span>
138                                                 </div>
139                                             </div>
140                                         </div>
141                                     }
142                                 }
143                             }
144                         </div>
145                     </div>
146                 </div>
147             </div>
148         }
149         else
150         {
151             <div class="alert alert-warning m-0">@Translate("Product Specification will be shown here if any")</div>
152         }
153     }
154