You're probably looking for $doc.updateObjectFromRequest('myspace.myclass')

See 
http://nexus.xwiki.org/nexus/service/local/repositories/releases/archive/org/xwiki/platform/xwiki-platform-oldcore/6.2.4/xwiki-platform-oldcore-6.2.4-javadoc.jar/!/com/xpn/xwiki/api/Document.html#updateObjectFromRequest%28java.lang.String%29

Hope this helps,
Marius


On Tue, Nov 11, 2014 at 8:18 PM, Jason Clemons <[email protected]> wrote:
>
> Hello all,
>
> I have a list on a page which defaults to a value defined in the objects of 
> the page.  What I want to do is access the value of the list after the page 
> is refreshed from velocity code on the same page.  My users would open the 
> page and see the lists with their default values, then select some values 
> from the list and press a button causing a post-back.  After the post-back 
> happens, I need to essentially "reflect" the selection that the user made 
> from velocity code.
>
> So far if I use the following code:
>
> #set($obj = $doc.getObject("myspace.myclass",0))
> $doc.display("myprop","view",$obj)
>
> But, I get the default value after the page posts back, even though the 
> selected value persists.
>
> Any help is greatly appreciated.
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