I have an AdvancedDataGrid which has a few rows, and lots of empty space. When I click on the empty space, I want all the rows to be deselected. How do I detect that I've clicked in an empty space?
I tried using grid.getObjectsUnderPoint() in the "click" event, but the results aren't very useful. I guess I could depend on the fact that there are always more than three objects when I click on a real row, and exactly three when I click on empty space, but that seems like a bad thing to depend on. Who knows what future versions of Flex will add to the list? There must be a better way! Thanks.

