How best to force selection

Suite and Optimus Suite 5
#1

Please can you tell me what is the best way of forcing ONLY available options in combo.

Currently I use 'enableFilterMode(true) which helps but it does not stop some users from entering rubbish data. Is there any way of forcing them to choose from ONLY available options?

Thanks

#2

This issue has been already discussed here:
viewtopic.php?f=4&t=15549