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Key cannot be null error on upgrade to the latest MVC wrappers

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ToolTip
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Jason Mobley
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Rank 1
Jason Mobley asked on 02 Dec 2013, 10:42 PM
I just updated my solution to the latest release of Kendo and the MVC wrappers. Everything is working exactly as it did before except the tool tip which is now throwing the following error. Does anyone know why this has started and what the solution is? Included first is my code, and then the error thrown.

<div id="quick-menu">
    <ul>
        <li id="qm-progress">
            <a href="#">@this.GetTermProvider().GetValue("PROGRESS_LEGEND")</a>
        </li>
        <li id="qm-status">
            <a href="#">@this.GetTermProvider().GetValue("STATUS_LEGEND")</a>
        </li>
        <li id="qm-message">
            <a href="#">@this.GetTermProvider().GetValue("MESSAGES")</a>
        </li>
    </ul>
</div>

<script id="qm-progress-template" type="text/x-kendo-template">
    @Html.Action("QuickMenuProgress", "Shared")
</script>


@(Html.Kendo().Tooltip()
      .For("#qm-progress")
      .Filter("a")        
      .ContentTemplateId("qm-progress-template")
      .Position(TooltipPosition.Top)
      .Deferred()
      .Width(250)
      .Height(100)
)


@(Html.Kendo().Tooltip()
      .For("#qm-status")
      .Filter("a")        
      .ContentTemplateId("qm-status-template")
      .Position(TooltipPosition.Top)
      .Deferred()
      .Width(250)
      .Height(100)
)

<script id="qm-status-template" type="text/x-kendo-template">
    @Html.Action("QuickMenuStatus", "Shared")
</script>

------------------------------

Server Error in '/' Application.Key cannot be null.
Parameter name: keyDescription: 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.ArgumentNullException: Key cannot be null.
Parameter name: key

Source Error: 

Line 19:
Line 20:
Line 21: @(Html.Kendo().Tooltip()
Line 22: .For("#qm-progress")
Line 23: .Filter("a")
Source File: c:\EPM\v6.0\Source\Presentation\Web\Views\Shared\QuickMenu.cshtml    Line: 21 

Stack Trace: 

[ArgumentNullException: Key cannot be null.
Parameter name: key]
System.Collections.Hashtable.ContainsKey(Object key) +149
System.Collections.Hashtable.Contains(Object key) +38
System.Collections.Specialized.OrderedDictionary.set_Item(Object key, Object value) +136
Kendo.Mvc.UI.WidgetBase.AppendScriptToContext(String script) +263
Kendo.Mvc.UI.WidgetBase.WriteDeferredScriptInitialization() +110
Kendo.Mvc.UI.WidgetBase.WriteHtml(HtmlTextWriter writer) +82
Kendo.Mvc.UI.WidgetBase.ToHtmlString() +115
Kendo.Mvc.UI.Fluent.TooltipBuilder.ToHtmlString() +52
System.Web.HttpUtility.HtmlEncode(Object value) +91
System.Web.WebPages.WebPageExecutingBase.WriteTo(TextWriter writer, Object content) +48
System.Web.WebPages.WebPageBase.Write(Object value) +53
ASP._Page_Views_Shared_QuickMenu_cshtml.Execute() in c:\EPM\v6.0\Source\Presentation\Web\Views\Shared\QuickMenu.cshtml:21
System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +271
System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +121
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +191
System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +763
System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +383
System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +432
System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +39
System.Web.Mvc.<>c__DisplayClass1a.<InvokeActionResultWithFilters>b__17() +78
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +388
System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +72
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +303
System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +155
System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +184
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +137
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +66
System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +48
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +68
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +65
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +48
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +66
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
System.Web.Mvc.<>c__DisplayClassa.<EndProcessRequest>b__9() +51
System.Web.Mvc.<>c__DisplayClass4.<Wrap>b__3() +41
System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Func`1 func) +69
System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Action action) +123
System.Web.Mvc.ServerExecuteHttpHandlerAsyncWrapper.EndProcessRequest(IAsyncResult result) +133
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +1743

[HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'.]
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +3544
System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage) +151
System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +122
System.Web.HttpServerUtilityWrapper.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +61
System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter) +985
System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues) +112
System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName) +46
ASP._Page_Views_Shared__RootLayout_cshtml.<Execute>b__d(TextWriter __razor_template_writer) in c:\EPM\v6.0\Source\Presentation\Web\Views\Shared\_RootLayout.cshtml:153
System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +42
Kendo.Mvc.UI.<>c__DisplayClass7.<set_InlineTemplate>b__6(TextWriter writer) +128
Kendo.Mvc.UI.HtmlElement.WriteTo(TextWriter output) +213
Kendo.Mvc.UI.<>c__DisplayClass5.<WriteTo>b__3(IHtmlNode child) +45
Kendo.Mvc.Extensions.EnumerableExtensions.Each(IEnumerable`1 instance, Action`1 action) +194
Kendo.Mvc.UI.HtmlElement.WriteTo(TextWriter output) +333
Kendo.Mvc.UI.Splitter.WriteHtml(HtmlTextWriter writer) +82
Kendo.Mvc.UI.WidgetBase.ToHtmlString() +115
Kendo.Mvc.UI.Fluent.WidgetBuilderBase`2.ToHtmlString() +62
System.Web.HttpUtility.HtmlEncode(Object value) +91
System.Web.WebPages.WebPageExecutingBase.WriteTo(TextWriter writer, Object content) +48
System.Web.WebPages.WebPageBase.Write(Object value) +53
ASP._Page_Views_Shared__RootLayout_cshtml.Execute() in c:\EPM\v6.0\Source\Presentation\Web\Views\Shared\_RootLayout.cshtml:93
System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +271
System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +121
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +191
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer) +52
System.Web.WebPages.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer) +333
System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +42
System.Web.WebPages.WebPageExecutingBase.WriteTo(TextWriter writer, HelperResult content) +44
System.Web.WebPages.WebPageBase.Write(HelperResult result) +52
System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +195
System.Web.WebPages.WebPageBase.PopContext() +342
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +200
System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +763
System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +383
System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +432
System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +39
System.Web.Mvc.<>c__DisplayClass1a.<InvokeActionResultWithFilters>b__17() +78
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +388
System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +72
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +303
System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +155
System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +184
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +137
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +66
System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +48
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +68
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +65
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +48
System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +50
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +152
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +66
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +930
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +188

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.33440

1 Answer, 1 is accepted

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Rosen
Telerik team
answered on 03 Dec 2013, 07:56 AM
Hello Jason,

We were able to identify the cause for the issue you have described and to address it. The fix will be included in the next internal build. As a temporary workaround you may consider removing the Deferred setting. I have also updated your telerik points as a token of gratitude.

Regards,
Rosen
Telerik
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Jason Mobley
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Answers by
Rosen
Telerik team
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