Error executing template "Designs/Swift/eCom/ProductCatalog/ProductSearchDropdownResponse.cshtml"
System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source)
   at CompiledRazorTemplates.Dynamic.RazorEngine_ce133c803ba344069ed8f3181eba99d5.Execute() in D:\dynamicweb.net\Solutions\Co3\espritduvin.cloud.dynamicweb-cms.com\Files\Templates\Designs\Swift\eCom\ProductCatalog\ProductSearchDropdownResponse.cshtml:line 120
   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     @inherits ViewModelTemplate<ProductListViewModel>
@using Dynamicweb.Rendering
@using Dynamicweb.Ecommerce.ProductCatalog
@{
	string searchTerm = string.Empty;
	string layout = Dynamicweb.Context.Current.Request["SearchLayout"] != null ? Dynamicweb.Context.Current.Request["SearchLayout"].ToString() : "field";
	string itemPadding = layout == "icon" ? "px-1" : "px-1";
	string iconPath = "/Files/Templates/Designs/Swift/Assets/icons/";
	if (!string.IsNullOrEmpty(Dynamicweb.Context.Current.Request["eq"]))
	{
		searchTerm = Dynamicweb.Context.Current.Request["eq"].Trim();
	}
	Dictionary<string, string> suggestions = new Dictionary<string, string>();
}
@functions{
	string Highlight(string input, string textToHighlight)
	{
		if (string.IsNullOrEmpty(textToHighlight))
		{
			return input;
		}
		input = fixHtmlEncoding(input.ToLower());
		foreach (string term in textToHighlight.Split(new[] { ' ' }, System.StringSplitOptions.RemoveEmptyEntries))
		{
			input = input.Replace(term, "</mark>" + term + "<mark>");
		}
		return "<span class=\"js-suggestion flex-fill text-break\" data-suggestion-value=\"\"><mark>" + input + "</mark></span>";
	}
	string ProductNameHighlight(string input, string textToHighlight)
	{
		if (string.IsNullOrEmpty(textToHighlight))
		{
			return input;
		}
		input = fixHtmlEncoding(input.ToLower());
		foreach (string term in textToHighlight.Split(new[] { ' ' }, System.StringSplitOptions.RemoveEmptyEntries))
		{
			input = input.Replace(term, "<mark>" + term + "</mark>");
		}
		return "<span class=\"js-suggestion flex-fill text-break\" data-suggestion-value=\"\">" + input + "</span>";
	}
	string fixHtmlEncoding(string input)
	{
		if (input.IndexOf("&") > 0)
		{
			if (input.IndexOf(" ", input.IndexOf("&")) > 0)
			{
				input = input.Replace(" ", "; ");
			}
			else
			{
				input += ";";
				input = System.Net.WebUtility.HtmlDecode(input);
			}
		}
		return input;
	}
	string escape(string input)
	{
		return Dynamicweb.Core.Encoders.HtmlEncoder.JavaScriptStringEncode(fixHtmlEncoding(input));
	}
	void AddSuggestion(string suggestion, string group, Dictionary<string, string> suggestions)
	{
		suggestion = suggestion.ToLower();
		if (!suggestions.ContainsKey(suggestion))
		{
			suggestions.Add(suggestion, group);
		}
	}
}
@if (Model.SpellCheckerSuggestions != null && Model.SpellCheckerSuggestions.Any())
{
	List<string> validSuggestions = new List<string>();
	foreach (string suggestion in Model.SpellCheckerSuggestions)
	{
		if (!validSuggestions.Contains(suggestion))
		{
			validSuggestions.Add(suggestion);
		}
	}
	if (validSuggestions.Count == 0)
	{
		foreach (string suggestion in Model.SpellCheckerSuggestions)
		{
			if (!validSuggestions.Contains(suggestion))
			{
				validSuggestions.Add(suggestion);
			}
		}
	}
	if (validSuggestions.Count > 0)
	{
		foreach (string suggestion in validSuggestions.Take(5))
		{
			AddSuggestion(suggestion, "Did you mean", suggestions);
			<li class="dropdown-item d-flex flex-row align-items-center py-2 px-0 text-wrap">
				<span class="dropdown-item-search-icon d-flex align-items-center justify-content-center" aria-hidden="true" onclick="swift.Typeahead.selectSuggestion(this.parentElement);"></span>
				<span class="flex-fill" onclick="swift.Typeahead.selectSuggestion(this.parentElement);">@Highlight(suggestion, searchTerm)</span>
				<span class="dropdown-item-arrow-icon d-flex d-lg-none align-items-center justify-content-center" aria-hidden="true" onclick="swift.Typeahead.setSuggestion(this.parentElement);"></span>
			</li>
		}
	}
}
@if (Model.FacetGroups.Any())
{
	var maxSuggestions = 5;
	foreach (var facetGroup in Model.FacetGroups)
	{
		foreach (var facetItem in facetGroup.Facets)
		{
			var facetOptionCount = facetItem.OptionCount;
			var optionActiveCount = facetItem.OptionActiveCount;
			var facetOptionResultTotalCount = facetItem.OptionResultTotalCount;
			var queryParameter = facetItem.QueryParameter;
			var template = facetItem.RenderType;
			var maxValue = facetItem.MaximumFacetValue;
			var minValue = facetItem.MinimumFacetValue;
			List<FacetOptionViewModel> validOptions = new List<FacetOptionViewModel>();
			foreach (var facetOption in facetItem.Options.OrderByDescending(option => option.Count))
			{
				if (searchTerm != null && validOptions.Count < maxSuggestions)
				{
					validOptions.Add(facetOption);
				}
			}
			if (validOptions.Count > 0)
			{
				<li class="text-wrap">
					<h6 class="dropdown-header ps-5 pe-3 py-3">@facetItem.Name</h6>
				</li>
				foreach (var facetOption in validOptions)
				{
					AddSuggestion(facetOption.Label, facetItem.Name, suggestions);
					<li class="dropdown-item @itemPadding" onclick="swift.Typeahead.selectSuggestion(this);" data-param="@queryParameter" data-paramvalue="@facetOption.Value">
						@Highlight(facetOption.Label, searchTerm)
						<div class="">@facetOption.Count</div>
					</li>
				}
			}
		}
	}
}
@if (Model.Products.Count() > 0)
{
	var validSuggestions = new List<ProductViewModel>();
	string label = Translate("Products");
	if (Model.Group != null)
	{
		label = Model.Group.Name;
	}
	foreach (var product in Model.Products)
	{
		if (searchTerm != null && product.Name.IndexOf(searchTerm, StringComparison.InvariantCultureIgnoreCase) >= 0 || true)
		{
			AddSuggestion(product.Name, label, suggestions);
			validSuggestions.Add(product);
		}
	}
	if (validSuggestions.Count > 0)
	{
		<li class="text-wrap">
			<h6 class="dropdown-header ps-5 pe-3 py-3">@label</h6>
		</li>
		foreach (var suggestion in validSuggestions)
		{
			var defaultGroupId = suggestion.PrimaryOrDefaultGroup.Id;
			var selectedDetailsPage = Dynamicweb.Ecommerce.Services.ProductGroups.GetGroup(defaultGroupId).Meta.PrimaryPage;
			selectedDetailsPage = !string.IsNullOrEmpty(selectedDetailsPage) ? selectedDetailsPage : null;
			//If selectedDetailsPage is null, the data-selected-details-page parameter will not be rendered to the finished markup
			if (!string.IsNullOrEmpty(Dynamicweb.Context.Current.Request["defaultpdpId"]))
			{
				selectedDetailsPage = $"Default.aspx?ID={Dynamicweb.Context.Current.Request["defaultpdpId"]}";
			}
			string productDetailLink = Dynamicweb.Frontend.SearchEngineFriendlyURLs.GetFriendlyUrl($"{selectedDetailsPage}&GroupID={defaultGroupId}&ProductID={suggestion.Id}");
			<li class="dropdown-item d-flex flex-row flex-lg-row-reverse align-items-center text-wrap px-0 text-wrap" onclick="swift.Typeahead.selectSuggestion(this);" data-param="ProductId" data-selected-details-page="@productDetailLink" data-paramvalue="@suggestion.Id">
				<span aria-hidden="true" class="d-lg-none dropdown-item-search-icon d-flex align-items-center justify-content-center"></span>
				@ProductNameHighlight(suggestion.Name + " - " + suggestion.Number, searchTerm)
				<img class="mx-2" src="/admin/public/getimage.ashx?image=@Dynamicweb.Context.Current.Server.UrlEncode(suggestion.DefaultImage.Value)&width=32&height=32&format=webp&Crop=5&fillcanvas=true" height="32" width="32" alt="@suggestion.Name">
			</li>
		}
	}
}
@if (!string.IsNullOrEmpty(searchTerm))
{
	if (Model.TotalProductsCount > 0)
	{
		<li class="dropdown-item text-center text-decoration-underline text-wrap @itemPadding" onclick="swift.Typeahead.selectSuggestion(this);">
			@Translate("View all") @Model.TotalProductsCount @Translate("products for")<mark> "<span class="js-suggestion">@searchTerm</span>"</mark>
		</li>
	}
	else
	{
		<li class="dropdown-item text-center text-decoration-underline text-wrap @itemPadding" onclick="swift.Typeahead.selectSuggestion(this);" style="cursor: pointer;">
			@Translate("We have no results for")<mark> "<span class="js-suggestion">@searchTerm</span>"</mark>
		</li>
	}
	<li class="py-2"></li>
}