Clearing Page Parameters After Use

Question

Whenever a parameter is sent to a page, either from a portlet event or otherwise, the parameter remains active accross multiple requests to the same page. This causes a problem in my particular scenario.
Consider a root page that has 2 tabs. Tab 1 has a portlet that raises an event and populates a parameter that is passed to the same page for use by another portlet in Tab 2. This works fine the first time the event is raised. However, multiple accesses to Tab 2 by means other than the event need to use a default value. But this only works if the event parameter does not exist.
Is there a way to set up my scenario so that the event parameter is cleared after its use?

Answer 1

Hello,
In your onchange event of the select list you can put some code like: onchange="javascript:$x('P1_POSTAL_CODE').value = '';$x('P1_ADDRESS').value = '';"
Instead of the inline javascript you can also create a function in javascript and just call the function in the onchange event.
I'm not sure anymore if it also works in 3.1.1 but in the latest version of APEX you can use $v('P1_POSTAL_CODE') = ''
Hope that helps.
Regards,
Dimitri
http://dgielis.blogspot.com/
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