Enable field according to values on multiple listbox dropdow

[alliance8791]

Hi all.

I have this:
1) Multiple select listbox with dropdown (Named "Category")
2) Multiple select listbox with dropdown (Named "Service")

I would like that, on ADD and EDIT page, according to some values in the Multiple select listbox with dropdown (Named "Category"), the Multiple select listbox (Named "Service") would be enabled.

Thanks in advance.
Refards.

[mobhar]

How about using Dynamic Selection List? Have you already tried it? Please read about that topic from PHPMaker Help menu for more info.