Need help with list definition with content types

Question

I have a custom content type based on document content type, and I added some columns to this content type.

I referenced this content type from list definition like this:

<ContentTypes>
      <ContentTypeRef ID="0x010100E78B02337C812A4692E59BF81668901202">
      </ContentTypeRef>
    </ContentTypes>

Now when I create a list instance from this list definition, and click: new, I can't see my content type in the dropdown, I can only see New Document, I have to go to list settings and enable content types on the list, then I will see my content type in the dropdown, now if I upload any document to the library, it will not show me any columns for my content types, it will not show me the dropdown to choose my content type.

If I add this content type to other library, it will work fine, when uploading a document to the library I can choose from the properties the custom columns.

What's wrong with my process?

Answer 1

1. You need enable contenttype in your list def (use EnableContentTypes attribute of the List element)
2. You need copy the field def XML section to your list def, just ref the contenttype will NOT working.

i have googled a link for you: http://blogs.msdn.com/b/mcsnoiwb/archive/2008/12/01/creating-list-definitions-with-content-types.aspx