The workaround for ComboBox bug https://bugs.adobe.com/jira/browse/SDK-25705
suggested by Ben Atkins worked for me. In fact, since I didn't have the resize issues, I reduced it to the following. I sent a separate nastygram (sorry) about regressions in the 3.x branch. public class ComboBoxPatched extends ComboBox { public function ComboBoxPatched() { super(); } //This addresses the problem where the list base wasn't reflecting changes to the data provider override public function set dataProvider(value:Object):void { super.dataProvider = value; if (dropdown) { dropdown.dataProvider = value; } } } On Thu, Jul 29, 2010 at 4:25 PM, Richard Rodseth <rrods...@gmail.com> wrote: > Yes, that was my plan, but I've since discovered that I misspoke and my > item renderer has a PopUpButton rather than a ComboBox (sorry!) > > Looking into other possible mistakes in my binding. > > On Thu, Jul 29, 2010 at 3:31 PM, Amy <amyblankens...@bellsouth.net> wrote: > >> >> >> >> >> --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>, Richard >> Rodseth <rrods...@...> wrote: >> > >> > Hmm. I did a diff on the 3.x and 3.5 versions of ComboBase and ComboBox, >> and >> > didn't see anything that seemed relevant - just some stuff about >> tweening. >> >> Richard, have you considered subclassing and just fixing it yourself >> (assuming the part you need to fix isn't private, of course). >> >> -Amy >> >> >> > >