Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 2:  	<a href="#" class="visible-xs go-back"><svg><use xlink:href="#arrow"></use></svg>@Localize.GetLabel("AU_INDIETRO")</a>
Line 3:  	<ul>
Line 4:  		@foreach (ListingProdotti listing in ListingProdotti.All())
Line 5:  		{
Line 6:  		    <li><a href="@listing.Url" title="@listing.Title">@listing.Name<svg><use xlink:href="#arrow"></use></svg></a></li>

Source File: F:\inetpub\wwwroot\Sito_Calligaris\template\sub\MenuProdottiLevel02.cshtml    Line: 4

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Websolute.BOM.FrontEnd.Core.URLHelper.GetLink(Int32 co_id) +12
   ListingProdotti..ctor(DataRow r) +713
   <>c__DisplayClass66_0.<All>b__0(DataRow r) +133
   System.Threading.Tasks.<>c__DisplayClass42_0`2.<PartitionerForEachWorker>b__1() +1639
   System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask) +32
   System.Threading.Tasks.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object ) +272

[AggregateException: One or more errors occurred.]
   System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) +4840936
   System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) +14610989
   System.Threading.Tasks.Parallel.PartitionerForEachWorker(Partitioner`1 source, ParallelOptions parallelOptions, Action`1 simpleBody, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally) +1614
   System.Threading.Tasks.Parallel.ForEachWorker(IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally) +525
   System.Threading.Tasks.Parallel.ForEach(IEnumerable`1 source, Action`1 body) +158
   ListingProdotti.All() +672
   ASP._Page_template_sub_MenuProdottiLevel02_cshtml.Execute() in F:\inetpub\wwwroot\Sito_Calligaris\template\sub\MenuProdottiLevel02.cshtml:4
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.WebPages.WebPage.ExecutePageHierarchy(IEnumerable`1 executors) +99
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +182
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +122
   System.Web.WebPages.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer) +309
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +108
   ASP._Page_template__Layout_cshtml.Execute() in F:\inetpub\wwwroot\Sito_Calligaris\template\_Layout.cshtml:212
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.WebPages.WebPage.ExecutePageHierarchy(IEnumerable`1 executors) +99
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +182
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +122
   System.Web.WebPages.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer) +309
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +108
   System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +89
   System.Web.WebPages.WebPageBase.PopContext() +310
   System.Web.WebPages.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer) +309
   Websolute.BOM.FrontEnd.Core.WebPageBase.Write(HelperResult result) +187
   ASP._Page_ViewDoc_cshtml.Execute() in F:\inetpub\wwwroot\Sito_Calligaris\ViewDoc.cshtml:57
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.WebPages.WebPage.ExecutePageHierarchy(IEnumerable`1 executors) +99
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +182
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +107
   System.Web.WebPages.WebPageHttpHandler.ProcessRequestInternal(HttpContextBase httpContext) +142


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4087.0