I have a Filter Widget in a Widget Controller (and a List Widget). First, I open the Filter Widget dialog and apply the filter (reducing the number of items in the list, as expected). Then when I close the Filter Widget dialog, the filter is un-applied (all items are again visible in the list). I noticed this in ExB DevEd v. 1.1. I started up ExB DevEd 1.0 and this behavior does not exist there. Was this an intentional change?
The behavior also exists in the online version. Below is a link to an ExB app that demonstrates it: