API for Flex 2.0 "Switching Basemaps" small fix

Question

In reference to the "Switching Basemaps" sample in the API for Flex 2.0 Since the buttons for changing basemaps are done using an , instead of a the user can reclick the selected button causing the basemap to disappear. Essentially, no basemap is selected. I tried a variety of fixes to this, but it seems to be more effort than its worth (not to mention I'm not much of a programmer). Maybe there's an easy solution, but I would recommend switching back to the ToggleButtonBar. I'm definitely curious to see how to fix this and still use the buttonbar.

MattWilliams · Answer

Sweet. Thanks for the solution.

DasaPaddock · Answer

You can set: requireSelection="true" e.g. Streets U.S. Topo Imagery Reference: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/components/supportClasses/ListBase.html#requireSelection