Make single option as read only in Radio group

Hi
How to make a option readonly with respect to condition in radio group in oracle apex 4.0. Example
option1
option2
option3
option4
I want to make the option4 read only based on the condition.So Where the codition needs to be added.
Regards
Balaji
Edited by: 904493 on Feb 7, 2012 1:19 AM

Just thinking aloud (can't test it right now myself): I'm not sure whether you can disable (or set read only) a radio button. However, if you don't need one of these options, perhaps you should modify List of Values query which returns these options. Furthermore, it means that list shouldn't be static but dynamic (SELECT statement).
So how do we restrict SELECT's result set? By using a WHERE clause.
Now, you know the conditions that have to be met in order to (or not to) display certain options. Suppose that there's a page item (named P1_CONDITION) which - if set to 4 (as "option*4*) - won't allow option4 to be displayed.
List of values' query might look like
{code}select option_name, option_id
from options
where option_id <> nvl(:P1_CONDITION, -1) --> -1 is a non-existent option
{code}

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Make single option as read only in Radio group

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