have a page with editable interactive grid. we have a table to populate PopUp LOV with limited rows (approx 20) but want to select 1 value only 1 time. client showed me a page in Codeigniter ( php framework) that the drop down list open for 2nd entry but the selected one in 1st entry is disabled. this is to avoid duplicate entries. can i disable previously selected or exclude for 2nd entry and so on... ? or any better idea?
note: IG is based on apex collections.