Error executing template "Designs/Swift/Paragraph/Custom__ShipDate.cshtml"
System.NullReferenceException: Object reference not set to an instance of an object.
   at CompiledRazorTemplates.Dynamic.RazorEngine_a8721d993abe488388f2fcb5a895ad5c.Execute() in F:\Domains\Sites\uat-ic.mydwsite.com\Files\Templates\Designs\Swift\Paragraph\Custom__ShipDate.cshtml:line 32
   at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.<RunCompile>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @*
  2     Ian notes 8/12/2025: pulled in the manual expected date using the line "DateTime? ManualDate =...", the added the integration expected date using "DateTime? ExpectedDate =...",
  3     then created DisplayDateValue so it would only show 1 of the dates and edited the bool section so it would look at displaydatevalue.
  4     
  5     Also, can use template in the future when trying to pull a custom field into a template, use the manual date as example.
  6     *@
  7     
  8     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.ParagraphViewModel>
  9     @using System
 10     @using System.Linq
 11     @using Dynamicweb.Ecommerce.ProductCatalog
 12     
 13     @{
 14         ProductViewModel product = null;
 15         if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
 16         {
 17             product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
 18         }
 19         else if (Pageview.Page.Item["DummyProduct"] != null && Pageview.IsVisualEditorMode)
 20         {
 21             var pageViewModel = Dynamicweb.Frontend.ContentViewModelFactory.CreatePageInfoViewModel(Pageview.Page);
 22             ProductListViewModel productList = pageViewModel.Item.GetValue("DummyProduct") != null ? pageViewModel.Item.GetValue("DummyProduct") as ProductListViewModel : new ProductListViewModel();
 23     
 24             if (productList?.Products is object)
 25             {
 26                 product = productList.Products[0];
 27             }
 28         }
 29     
 30         bool isErpConnectionDown = !Dynamicweb.Core.Converter.ToBoolean(Dynamicweb.Context.Current.Items["IsWebServiceConnectionAvailable"]);
 31         bool hideStock = Pageview.AreaSettings.GetBoolean("ErpDownHideStock") && isErpConnectionDown;
 32     	DateTime? ManualDate = product.ProductFields.ContainsKey("ManualProductExpectedDelivery") && DateTime.TryParse(product.ProductFields["ManualProductExpectedDelivery"]?.ToString(), out var dt) ? dt : (DateTime?)null;
 33         DateTime? ExpectedDate = product.ExpectedDelivery;
 34     	DateTime? DisplayDateValue = ExpectedDate ?? ManualDate;
 35         bool hasDisplayDate = DisplayDateValue != null && DisplayDateValue > DateTime.Now;
 36     }
 37     
 38     
 39     @if ((product is object && !hideStock) && (hasDisplayDate))
 40     {
 41         string horizontalAlign = Model.Item.GetRawValueString("HorizontalAlignment", "");
 42         horizontalAlign = horizontalAlign == "center" ? "text-center" : horizontalAlign;
 43         horizontalAlign = horizontalAlign == "end" ? "text-end" : horizontalAlign;    
 44         string DisplayDate = DisplayDateValue?.ToShortDateString() ?? "";
 45     
 46     	string liveInfoClass = "";
 47         string productInfoFeed = "";
 48         bool isLazyLoadingForProductInfoEnabled = Dna.Ecommerce.LiveIntegration.TemplatesHelper.IsLazyLoadingForProductInfoEnabled;
 49         
 50         if (isLazyLoadingForProductInfoEnabled)
 51         {
 52             if (Dynamicweb.Context.Current.Items.Contains("ProductInfoFeed"))
 53             {
 54                 productInfoFeed = Dynamicweb.Context.Current.Items["ProductInfoFeed"]?.ToString();
 55                 if (!string.IsNullOrEmpty(productInfoFeed))
 56                 {
 57                     productInfoFeed = $"data-product-info-feed=\"{productInfoFeed}\"";
 58                 }
 59             }
 60             liveInfoClass = "js-live-info";
 61             
 62             <div class="js-stock-state @horizontalAlign item_@Model.Item.SystemName.ToLower() @liveInfoClass" data-product-id="@product.Id" data-variant-id="@product.VariantId" @productInfoFeed>
 63                 <div class="js-stock-state spinner-border">
 64                     <p class="d-none" data-show-if="LiveProductInfo.product.StockLevel <= 0">
 65                         <span class="js-text-stock d-none"></span>
 66                         <span>@Translate("Expected Ship Date"): </span>
 67                         <span>@DisplayDate</span>
 68                     </p>
 69                 </div>
 70             </div>
 71         }
 72         else
 73         {
 74             string firstUnitId = product?.UnitOptions?.FirstOrDefault() != null ? product.UnitOptions.FirstOrDefault().Id : "";
 75             string defaultUnitId = !string.IsNullOrEmpty(product.DefaultUnitId) ? product.DefaultUnitId : firstUnitId;
 76             string unitId = !string.IsNullOrEmpty(Dynamicweb.Context.Current.Request.Form.Get("UnitId")) ? Dynamicweb.Context.Current.Request.Form.Get("UnitId") : defaultUnitId;
 77             
 78             var reserveMode = Dynamicweb.Ecommerce.Frontend.Cart.ProductReserve.Mode;
 79             double? reservedAmount = 0;
 80             if (reserveMode == Dynamicweb.Ecommerce.Frontend.Cart.ProductReserveMode.AddToCart)
 81             {
 82                 reservedAmount = Dynamicweb.Ecommerce.Frontend.Cart.ProductReserve.GetReservedAmount(product.Id, product.VariantId, 0, unitId);
 83             }
 84             double? currentStockLevel = product.StockLevel - reservedAmount;
 85             
 86             <div class="js-stock-state @horizontalAlign item_@Model.Item.SystemName.ToLower()">
 87                 @if (currentStockLevel <= 0)
 88                 {
 89                     <p>
 90                         <span>@Translate("Expected Ship Date"): </span>
 91                         <span>@DisplayDate</span>
 92                     </p>
 93                 }
 94             </div>
 95         }
 96     } else if (Pageview.IsVisualEditorMode)
 97     {
 98         <div class="alert alert-info">@Translate("Expected Ship Date will be rendered here")</div>
 99     }