I have a 'Region' drop-down field to diaplay a list of values. Based on what the user chooses I then need to do the following:
1). Enable the 'Area' drop-down list
2), Only allow Area vlaues related to the Region chosen previously.
How can I control whether the 'Area' drop-down list is active/inactive. I asume this is controlled withiin one of the controller methods and is triggered on a round-server trip.
I then need to ensure that only Area values related to Region chosen appear. But how should I identify/obtain the Region value previously entered.
Any help would be much appreciated.
Jon