Event receiver on Content Type not triggered on WikiPageLibrary

Question

I created a new content type for a wiki page library. I added this content type to library by code (the interface did not allow this). Next, I added an event receiver to this content type (on ItemAdded and ItemAdding). My problem is that no event is trrigered. If I add this events directly to the wiki page library all works fine. Is there a limitation/bug/trick ?

I looked at the content type attached to the library with SharePoint Manager and in his schema the part for event receiver is missing...I know that there should be something like:

<XmlDocuments>
    <XmlDocument NamespaceURI="http://schemas.microsoft.com/sharepoint/events">
      <spe:Receivers xmlns:spe="http://schemas.microsoft.com/sharepoint/events">
        <Receiver>
          <Name>
          </Name>
          <Type>1</Type>
          <SequenceNumber>10000</SequenceNumber>
          <Assembly>RssFeedWP, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f6722cbeba696def</Assembly>
          <Class>RssFeedWP.ItemEventReceiver</Class>
          <Data>
          </Data>
          <Filter>
          </Filter>
        </Receiver>
        <Receiver>
          <Name>
          </Name>
          <Type>10001</Type>
          <SequenceNumber>10000</SequenceNumber>
          <Assembly>RssFeedWP, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f6722cbeba696def</Assembly>
          <Class>RssFeedWP.ItemEventReceiver</Class>
          <Data>
          </Data>
          <Filter>
          </Filter>
        </Receiver>
      </spe:Receivers>
    </XmlDocument>

If I look with SPM to the content type added to site I see this part into schema.

Here is my code:

   public override void FeatureActivated(SPFeatureReceiverProperties properties)
    {
        using (SPWeb web = (SPWeb)properties.Feature.Parent)
        {
            // create RssWiki content type
            SPContentType rssFeedContentType = new SPContentType(web.AvailableContentTypes["Wiki Page"], 
                                                web.ContentTypes, "RssFeed Wiki Page");

            // add rssfeed url field to the new content type
            AddFieldToContentType(web, rssFeedContentType, "RssFeed Url", SPFieldType.Note);                
            // add use xslt check box field to the new content type
            AddFieldToContentType(web, rssFeedContentType, "Use Xslt", SPFieldType.Boolean);                
            // add xslt url field to the new content type
            AddFieldToContentType(web, rssFeedContentType, "Xslt Url", SPFieldType.Note);

            web.ContentTypes.Add(rssFeedContentType);
            rssFeedContentType.Update();
            web.Update();

            AddContentTypeToList(web, rssFeedContentType);
            AddEventReceiversToCT(rssFeedContentType);
            //AddEventReceiverToList(web);
        }
    }

   private void AddFieldToContentType(SPWeb web, SPContentType ct, string fieldName, SPFieldType fieldType)
    {            
        SPField rssUrlField = null;
        try
        {
            rssUrlField = web.Fields.GetField(fieldName);
        }
        catch (Exception ex)
        {
            if (rssUrlField == null)
            {
                web.Fields.Add(fieldName, fieldType, false);
            }
        }
        SPFieldLink rssUrlFieldLink = new SPFieldLink(web.Fields[fieldName]);
        ct.FieldLinks.Add(rssUrlFieldLink);
    }

   private static void AddContentTypeToList(SPWeb web, SPContentType ct)
    {
        SPList wikiList = web.Lists[listName];
        wikiList.ContentTypesEnabled = true;
        wikiList.ContentTypes.Add(ct);
        wikiList.Update();
    }

   private static void AddEventReceiversToCT(SPContentType ct)
    {
        //add event receivers                
        string assemblyName = System.Reflection.Assembly.GetExecutingAssembly().FullName;
        string ctReceiverName = "RssFeedWP.ItemEventReceiver";

        ct.EventReceivers.Add(SPEventReceiverType.ItemAdding, assemblyName, ctReceiverName);
        ct.EventReceivers.Add(SPEventReceiverType.ItemAdded, assemblyName, ctReceiverName);
        ct.Update();
    }

Thx !

Flo Flo · Accepted Answer · 2010-03-17T15:00:55

I'm not sure, but could you try to add the event receiver to the content type before you add the content type to the list.

I think the event receiver has to be added before because when adding a content type to a list the content type is not added directly to the list, rather a copy of it is added to the list. So when you add your content type to the list, there is no event receiver yet.

Event receiver on Content Type not triggered on WikiPageLibrary

1 Answers