Android :: Filtering Dialog Items In OnPrepareDialog()

My application has a ListView displaying some items that are associated with different documents:

CODE:..........

The ListView implements an OnItemLongClickListener and displays the available document types as follows:

CODE:...............

I would like to modify onPrepareDialog to filter the dialog to display only the document types relevant for the long clicked item (like a context menu except that some long clicks will perform a different task: expand or collapse the hierarchy displayed in the custom ListView). For example, if an item is long clicked that is associated with only document types A and B, I would like the dialog to avoid displaying document types C and D as dialog items? However, looking at R.java, it is not clear to me what the id of an individual item in the select_doc_dialog_items array would be.

How to use onPrepareDialog() to filter displayed dialog items?