filtering icontent

Jonathan Roberts 372 posts 1005 karma points

Feb 03, 2015 @ 18:18

Filtering IContent

Hi,

I had a search working on my umbraco site where I was getting a load of events and filtering them but now it is throwing a weird error: The alias datatypes have not changed. Any ideas?

Exception Details: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.


Line 39:     Umbraco.Core.Services.IContentService cs = ApplicationContext.Current.Services.ContentService;
Line 40:     IEnumerable itemList = Enumerable.Empty();
Line 41:     itemList = cs.GetChildren(EventsParent).OrderByDescending(x => x.GetValue("simpleEventDateFrom"));
Line 42:     String[] catlist = itemList.Select(I => Convert.ToString(I.GetValue("simpleEventCategory"))).ToArray();
Line 43:

Source File: d:\inetpub\wwwroot\roundsquare-uat\httpdocs\Views\SimpleEvents.cshtml Line: 41

Stack Trace:


[KeyNotFoundException: The given key was not present in the dictionary.]
   System.Collections.Generic.Dictionary`2.get_Item(TKey key) +14332239
   System.Collections.ObjectModel.KeyedCollection`2.get_Item(TKey key) +70
   Umbraco.Core.Models.ContentBase.GetValue(String propertyTypeAlias) +32
   ASP._Page_Views_SimpleEvents_cshtml.b__14(IContent x) in d:\inetpub\wwwroot\roundsquare-uat\httpdocs\Views\SimpleEvents.cshtml:41
   System.Linq.EnumerableSorter`2.ComputeKeys(TElement[] elements, Int32 count) +148
   System.Linq.EnumerableSorter`1.Sort(TElement[] elements, Int32 count) +38
   System.Linq.d__0.MoveNext() +338
   System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +165
   System.Linq.Buffer`1..ctor(IEnumerable`1 source) +488
   System.Linq.Enumerable.ToArray(IEnumerable`1 source) +103
   ASP._Page_Views_SimpleEvents_cshtml.Execute() in d:\inetpub\wwwroot\roundsquare-uat\httpdocs\Views\SimpleEvents.cshtml:42
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +280
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +125
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +181
   Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) +140
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +380
   System.Web.Mvc.<>c__DisplayClass1a.b__17() +33
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +613
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +613
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +263
   System.Web.Mvc.Async.<>c__DisplayClass25.b__22(IAsyncResult asyncResult) +240
   System.Web.Mvc.<>c__DisplayClass1d.b__18(IAsyncResult asyncResult) +28
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +15
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +15
   System.Web.Mvc.<>c__DisplayClass8.b__3(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +15
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +606
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +288

This is my code: where simpleEventDateFrom is my alias datatype

var EventsParent = 1460;

Umbraco.Core.Services.IContentService cs = ApplicationContext.Current.Services.ContentService;
IEnumerable itemList = Enumerable.Empty();
itemList = cs.GetChildren(EventsParent).OrderByDescending(x => x.GetValue("simpleEventDateFrom"));

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Zac 222 posts 574 karma points

Apr 21, 2015 @ 13:39

Seeing this same issue all of a sudden out of the blue with Umbraco 7.2.4

private void PublishedHandler_Published(IPublishingStrategy sender, PublishEventArgs<IContent> args)
{
    var contentService = new ContentService();
    foreach (var node in args.PublishedEntities)
    {
         var someProperty = node.GetValue<string>("someAlias");
    }
}

Gives me an error:

Message "The given key was not present in the dictionary."
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at System.Collections.ObjectModel.KeyedCollection`2.get_Item(TKey key)
   at Umbraco.Core.Models.ContentBase.GetValue[TPassType](String propertyTypeAlias)

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Alex Skrypnyk 5908 posts 22603 karma points MVP 4x admin c-trib

Apr 21, 2015 @ 17:14

Hi Zac,

Did you try to use GetPropertyValue method?

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Zac 222 posts 574 karma points

Apr 22, 2015 @ 01:50

Hi Alex,

It was a silly question, and I realised as soon as I posted it.

I just expected it not to throw an exception, is all (like IPublishedContent). It was fine as soon as I checked if the content node had that property.

Cheers, Zac

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Filtering IContent