Adobe Flex control missing vertical scroll bar

Question

I have a canvas containing a datagrid. I set horz and vert scroll to 'off' for the canvas, and set both to 'auto' for the DG. This works until I have a larger number of columns in the DG (>=16), then the vert scroll bar doesn't appear. Anyone seen this and, better yet, have an answer?

TIA, Perflexed

Answer 1

Found a simple solution, if not an answer. The outer container was specified with fixed height and width, and the inner DG was set to 100% height and width. Setting the DG height and width to fixed values a bit smaller than the outer container did the trick. Still, it seems "100%" should work.