Error executing template "/Designs/Swift-v2/Grid/Page/RowTemplates/Swift-v2_Row.cshtml"
System.InvalidOperationException: Nullable object must have a value.
   at System.Nullable`1.get_Value()
   at CompiledRazorTemplates.Dynamic.RazorEngine_5d09f0072f82423db7c5fcdc6738cd6a.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.GridRowViewModel>
  2     @using Dynamicweb.Frontend
  3     
  4     @{
  5     	string gridEnabled = string.Empty;
  6     	bool enableVisibleGrid = (bool)Model?.Item?.GetBoolean("enable_visible_grid");
  7     	int columnGap = Model?.GapX ?? 3;
  8     
  9     	if (enableVisibleGrid)
 10     	{
 11     		gridEnabled = "visible-grid";
 12     	}
 13     	
 14     	if (enableVisibleGrid && columnGap != 0)
 15     	{
 16     		gridEnabled = "visible-grid visible-grid-spacing";
 17     	}
 18     }
 19     
 20     	                        
 21     
 22     <section data-swift-gridrow 
 23     	style="@Model?.BackgroundImage?.ToBackgroundStyle(new () { Width=1680 }, true)" 
 24     	data-dw-colorscheme="@Model?.ColorScheme?.Id" 
 25     	data-dw-itemtype="@Model?.Item?.SystemName.ToLower()" 
 26     	data-dw-row-space-top="@(Model?.TopSpacing ?? 6)" 
 27     	data-dw-row-space-bottom="@(Model?.BottomSpacing ?? 6)" 
 28     	data-dw-row-gap-column="@(Model?.GapX ?? 3)"
 29     	data-dw-row-gap-row="@(Model?.GapX ?? 3)"
 30     	data-dw-row-vertical-align="@(Model?.VerticalAlignment)"
 31     	class="@gridEnabled">
 32     
 33     	<div data-swift-container class="grid" data-dw-container-width="@(Model?.ContainerWidth ?? 3)">
 34     		@foreach (var column in Model.Columns)
 35     		{
 36     			<div data-swift-gridcolumn class="g-col-@column.ColumnWidthMobile g-col-lg-@column.ColumnWidth order-@column.ColumnNumberMobile order-lg-@column.ColumnNumber" data-dw-itemtype="@column.Paragraph?.Item?.SystemName.ToLower()" id="@column.Paragraph?.ID" data-dw-colorscheme="@column.Paragraph?.ColorScheme?.Id">
 37     				@column.Output()
 38     			</div>
 39     		}
 40     	</div>
 41     </section>
 42