Query Bind Parameters on Group with inline overflow style

Question

I'm using Query Bind Parameters on a Group to pass URL parameters to the VO.
The VO has bind parameters :p1 and :p2.
The Query Bind Parameters on the group based on this VO look like this:
p1=#{param.urlp1}, p2=#{param.urlp2}
I hit the jspx page with parameters like so: .../page.jspx?ulrp1=123&ulrp2=456
The page returned includes the rows I expect. Good so far...
However, when I click the show/hide link to disclose details I receive a "No Rows Yet" message.
What am I doing wrong?
Thanks for your help.

Answer 1

Francis,
Yes, with the #{param...} notation you refer to a request parameter. When you do hide/show, a new request is sent to the server without the params, which causes JHeadstart to reexecute the query because the bind parameter values have changed (to null).
The ADFBindingFilter ensures that the "bindings" request attribute is set on each request, that's why #{bindings... expression keeps working.
In general, you should try to avoid use of request parameters when using JSF. It is better to pass around context state using managed beans.
Steven Davelaar,
JHeadstart Team.