System.FormatException: Input string was not in a correct format.
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Linq.Enumerable.<>c__DisplayClass7_0`3.<CombineSelectors>b__0(TSource x)
at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Enumerable.<CastIterator>d__97`1.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at ASP._Page_Views_MacroPartials_Accordion_cshtml.Execute() in C:\inetpub\wwwroot\DOA_Umbraco\Views\MacroPartials\Accordion.cshtml:line 17
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult)
at Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content)
at Umbraco.Web.Macros.MacroRenderer.<>c__DisplayClass17_0.<ExecuteMacroOfType>b__0()
at Umbraco.Web.Macros.MacroRenderer.ExecuteProfileMacroWithErrorWrapper(MacroModel macro, String msgIn, Func`1 getMacroContent, Func`1 msgErr)
at Umbraco.Web.Macros.MacroRenderer.ExecuteMacroWithErrorWrapper(MacroModel macro, String msgIn, String msgOut, Func`1 getMacroContent, Func`1 msgErr)
at Umbraco.Web.Macros.MacroRenderer.ExecuteMacroOfType(MacroModel model, IPublishedContent content)
at Umbraco.Web.Macros.MacroRenderer.Render(MacroModel macro, IPublishedContent content, IDictionary pageElements)
at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(IPublishedContent content, String alias, IDictionary`2 parameters)
at Umbraco.Web.UmbracoComponentRenderer.RenderMacro(Int32 contentId, String alias, IDictionary`2 parameters)
at ASP._Page_Views_Partials_grid_editors_Macro_cshtml.Execute() in C:\inetpub\wwwroot\DOA_Umbraco\Views\Partials\grid\editors\Macro.cshtml:line 15
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in C:\inetpub\wwwroot\DOA_Umbraco\Views\Partials\grid\editors\Base.cshtml:line 20
