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Former Member
Jun 07, 2011 at 10:44 AM

Drop-down values based on previous enter value for another drop-down

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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