Forcing Pick Box Use (ZP 32 & ZP SQL)

I recently had a customer ask if there is a way to force users to fill in fields using the Pick Box feature. One way to do this is to disable the field for direct editing by making the field read only. You can do this for selected fields in the screen scripts. The example below makes the Existing Use field read only so the only way it can be filled in is by using the Pick Box option. The script uses "Base" for the Module, "Property" for the Screen, and "Screen" for the Action.

propscreen.zp_pageframe1.page1.txtExist_use.readonly = .T.

You can add as many fields to the same script as needed.