DDLB In WD-ABA for Antony :-)
so from your post it seems to me that you tried to create the dropdown from the context. This is basically not possibble. You need to use the element: Enumerated Drop-Down list or the Enumerated Drop-Down list (no-select) form the Webdynpro native tab. /* Layout */ Than you have to make the assignment manually.
If this does not help you, can you please describe step by step what you are doing?