Delete content type during feature dectivation

Question

I want to delete content type programmatically on feature deactivation. I've wrote the code to perform deletion:

 SPSecurity.RunWithElevatedPrivileges(delegate()
     {
        using (SPWeb webSite =(SPWeb)properties.Feature.Parent)
        {
            webSite.AllowUnsafeUpdates = true;
            // Get the obsolete content type.
            SPContentType obsolete = webSite.ContentTypes["Examples8888 - CT1"];

            // We have a content type.
            if (obsolete != null)
            {
                IList<SPContentTypeUsage> usages = SPContentTypeUsage.GetUsages(obsolete);

                // It is in use.
                if (usages.Count <= 0)
                {
                    obsolete.Delete();
                    // Delete it.
                    Console.WriteLine("Deleting content type {0}...", obsolete.Name);
                    webSite.ContentTypes.Delete(obsolete.Id);
                }
            }


        }
     });

But it gives me error :

The content type is part of an application feature.

This content type is not being used anywhere still I am not able to delete it.

Is there any way to deal with this error?

Thanks, Priya

Is this content type part of same feature in which you trying to delete it? Maybe this content type's was removed before? — Yevgeniy.Chernobrivets, Nov 14 '13 at 17:17

score 0 · Answer 1 · answered Nov 14 '13 at 17:30

Make sure that all references are deleted and removed from all recycle bins as well.

For example, if a list references a content type is deleted it will be moved to the recycle bin and sharePoint still sees a reference. Delete from all recycle bins (end-user and site collection) and try again.

Delete content type during feature dectivation

1 Answers1