Add list.invalidateSize(), but only do it when you know something has been added or removed. You might be better off listening to the dataProvider's collectionChange event.
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Seth Caldwell Sent: Monday, November 05, 2007 11:06 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] problem with list component No binding warnings, also updateComplete="list.verticalScrollPolicy=(list.dataProvider.length>list .rowCount)?'on':'auto';" produces the same effect - if you change the data once to have more elements than can be displayed, the scrollbar is over the content. If you change it a second time, then the scrollbar resizes appropriately. Seth From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui Sent: Thursday, November 01, 2007 10:50 PM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] problem with list component Did you get any binding warnings in the console? I'm not clear it knows how to wire up to that. You might just need to run the equivalent in a updateComplete event. ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Seth Caldwell Sent: Thursday, November 01, 2007 4:17 PM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] problem with list component verticalScrollPolicy="{(thelist.dataProvider.length>thelist.rowCount)?'o n':'auto'}" works, sort of. When the list data changes, I think the displaylist is invalidated, redrawn, and then this binding action happens and verticalScrollPolicy is set to 'on' ... but then the display list isn't invalidated again, so you don't see the width appropriately change until the next time the list data changes. Kind of odd. Alex - I'd assume that in the setter for verticalScrollPolicy the display list needs to be invalidated again. This may be a bug, not sure. Seth From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Seth Caldwell Sent: Thursday, November 01, 2007 3:00 PM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] problem with list component Oh, cool. I think I'll set verticalScrollPolicy to {dataProvider.length()>rowCount?"on":"auto"}, so I don't have those blank scrollbars present when they're not needed ;p (haven't tested this yet, but hopefully it works) Btw, in googling to find out what lockedRowCount and rowCount were, I found your page ;) http://blogs.adobe.com/aharui/2007/07/the_future_of_list_classes_tre.htm l Thanks for taking time to answer my simple question, Seth From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui Sent: Thursday, November 01, 2007 1:56 PM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] problem with list component If verticalScrollPolicy="auto" (default), the scrollbars are not factored into the width so its appearance does not shift your UI. If verticalScrollPolicy="on", the scrollbars are factored into the width ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Seth Caldwell Sent: Thursday, November 01, 2007 11:46 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] problem with list component If you don't specify a width on a list, it then resizes itself to fit the content - the list items. However, if you then add items to this list causing it to require a scrollbar, the scrollbar does not increase the total width as expected, but instead is placed over (and thus hiding) the content the list previously was sized to. =( Anyone ran into this and found a workaround? Seth
