I've seen this too, lots and for Lists as well as TileLists. It looks like the TileList doesn't know what size it is...
However, if you put a Canvas around your TileList, the Canvas will know the right size and give you scroll bars as needed... cheers, ethan > > I'm encountering a problem with some TileLists that should be have > scroll bars but do not, or when they do, they don't allow scrolling > the full length of the window. The structure of my MXML is (for > illustration only! not actual code): > > <VerticalDividedBox> > <Panel> > <TileList> > <TileList /> > </TileList> > <Panel> > <Panel> > <TileList> > <TileList /> > </TileList> > <Panel> > </VerticalDividedBox> > > The verticalScrollPolicy for all items is set to Auto. This seemed > to be working normally with test data, but when I increased the > amount of data (tiles in the outermost TileList) I noticed that > even though the contents of the TileList were longer than the > height of the list, there was no scroll bar. If I shrink down the > screen or move the vertical divider up or down to shrink the list's > scroll rectangle, the scrollbar DOES eventually show up, however it > won't let me scroll the full length of the list. > > For instance, I have 6 rows in the TileList, but only 4 show in the > space available. This would be fine, if there was a scroll bar, but > there is not. If I shrink the list so that only two items show, I > do have a scroll bar, but it only lets me scroll to the third item, > and not to the 6th. > > And I'm not sure if this is related, but when I stretch the window > size back to the full size, the last tile that was cut off when the > list was small shows up twice. > > Even setting the verticalScrollPolicy to ON for all components did > not actually give a scroll option when it should have. It just > showed the scrollbar placeholder. > > Some things I've tried: > - fiddling with the lockedRowCount, not using it at all, set to 1, > set to 10 (no change) > - setting the verticalScrollPolicy to auto on all (that's how it > is now) > - setting the verticalScrollPolicy to ON on all (no change except > the scroll placeholder showed, still not scrollable when it needs > to be) > - setting the verticalScrollPolicy to OFF on all except the > outermost Panel (no change except that the scroll bars didn't show > up even when the window was small) > - setting the row count higher (no change) > > It's very odd! Here is a sample of the tileList code (please note, > for it to run you would need to move the itemRenderer to a separate > component): > > <!-- begin code --> > > <mx:VDividedBox id="outerVerticalDividedBox" > verticalScrollPolicy="auto"> > > <mx:Panel id="outerPanel" > title="outer panel" > layout="vertical" > verticalAlign="top" > verticalScrollPolicy="auto" > horizontalScrollPolicy="off" > height="60%" > width="100%"> > > <mx:TileList id="outerTileList" > itemRenderer="innerTileList" > verticalScrollPolicy="auto" > horizontalScrollPolicy="off" > columnCount="1" > rowCount="10" > lockedRowCount="1" > direction="vertical" > allowMultipleSelection="false" > dragEnabled="false" > dragMoveEnabled="false" > dropEnabled="false" > width="100%" height="100%" rowHeight="75"> > > <mx:TileList itemRenderer="myCanvas" > id="innerTileList" > verticalScrollPolicy="auto" > horizontalScrollPolicy="off" > columnCount="2" > rowCount="10" > lockedRowCount="1" > rowHeight="22" > columnWidth="160" > direction="horizontal" > allowMultipleSelection="false"/> > > </mx:TileList> > </mx:Panel> > </mx:VDividedBox> > > <!-- end code --> > > Has anyone ever seen this before? > > Thanks > Rachel > > >
