I think you find the y of a list and set verticalscrollpos to min of it or maxvertscrollpos
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Richard Rodseth Sent: Tuesday, September 25, 2007 6:57 AM To: [email protected] Subject: Re: [flexcoders] Setting selectedIndex Yes, the latter. As I mentioned the lists have rowCount set so that they don't have scrollbars (by design). But I still need the selection to scroll into view (within the contain-of-lists) when the arrow keys are used or I set the selection programmatically. On 9/24/07, Alex Harui <[EMAIL PROTECTED] <mailto:aharui%40adobe.com> > wrote: > > > > > > > > Not sure what nested has to do with it. Given that you can reference one of > the repeated lists, you can call scrollToIndex on it. > > Or is your issue how to scroll the container full of repeated lists? > > ________________________________ > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of Richard Rodseth > Sent: Sunday, September 23, 2007 10:32 PM > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: Re: [flexcoders] Setting selectedIndex > > > > > > I finally got around to trying scrollToIndex(). No dice. > > Recall that my list is repeated, and the instances have no scrollbars > because their rowcount gets set to the number of items. I'm looking > for a scrollSelectionIntoView recipe that works even if the list is > nested. > > Thanks. > > On 9/19/07, Alex Harui <[EMAIL PROTECTED] <mailto:aharui%40adobe.com> > wrote: > > > > > > > > > > > > > > > > > > > > Good. Try scrollToIndex() > > > > > > > > ________________________________ > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > > Behalf Of Richard Rodseth > > Sent: Wednesday, September 19, 2007 5:04 PM > > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > Subject: Re: [flexcoders] Setting selectedIndex > > > > > > > > > > > > > > > > It did the trick, and designating uniqueness of my proxies by > > implementing IUID makes perfect sense. I half expected something like > > this to happen, but I did the proxy list early on, and had not had any > > other issues with it. > > > > Now I just need to figure out how to scroll the selection into view. > > > > Thanks again. > > > > On 9/19/07, Alex Harui <[EMAIL PROTECTED] <mailto:aharui%40adobe.com> > wrote: > > > > > We use UID for selection mgmt, but there still might be issues in > setting > > > selectedItem, selectedIndex, so no guarantees > > > > > > > > > > > > ________________________________ > > > > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > > > Behalf Of Richard Rodseth > > > Sent: Wednesday, September 19, 2007 3:28 PM > > > > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > > Subject: Re: [flexcoders] Setting selectedIndex > > > > > > > > > > > > > > > > > > > > > > > > Excellent. I see this is explained here: > > > > > > > > > http://livedocs.adobe.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhel p.htm?context=LiveDocs_Book_Parts&file=about_dataproviders_057_02.html <http://livedocs.adobe.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhe lp.htm?context=LiveDocs_Book_Parts&file=about_dataproviders_057_02.html> > > > > > > I'll look into implementing IUID. Many thanks. > > > > > > On 9/19/07, Alex Harui <[EMAIL PROTECTED] <mailto:aharui%40adobe.com> > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > The list relies on uids, If your proxy has the same uid for an index > > that > > > > might help > > > > > > > > > > > > > > > > ________________________________ > > > > > > > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] > On > > > > Behalf Of Richard Rodseth > > > > Sent: Wednesday, September 19, 2007 3:11 PM > > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > > > Subject: Re: [flexcoders] Setting selectedIndex > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks Alex. I narrowed it down to my ProxyList, which returns a new > > > > (small) object each time getItemAt is called. I figured these would > > > > get garbage collected (and that getItemAt would only get called for > > > > visible items), but if the List component is hanging onto them and > > > > using them, that's not going to work. Is that the case? Or does List > > > > rely on IList methods (willTrigger perhaps?) that I may not have > > > > implemented correctly. > > > > > > > > I'd hate to give up my proxy list, unless there is a better way to > > > > handle large data sets. > > > > > > > > On 9/19/07, Alex Harui <[EMAIL PROTECTED] <mailto:aharui%40adobe.com> > wrote: > > > > > > > > > Should just work, but you can try calling invalidateList() (not > > > > > invalidateDisplayList()). > > > > > > > > > > > > > > > > > > > > I'd try it on a List outside of a Repeater. If that makes a > > difference, > > > > > check the recycling options on Repeater. > > > > > > > > > > > > > > > > > > > > ________________________________ > > > > > > > > > > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] > > On > > > > > Behalf Of Richard Rodseth > > > > > Sent: Wednesday, September 19, 2007 1:29 PM > > > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > > > > Subject: [flexcoders] Setting selectedIndex > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I am able to clear the selection of a list programmatically, by > > > setting: > > > > > > > > > > myList.selectedIndex = -1 > > > > > > > > > > but setting the selection to a specific index is not working. The > > > > > previous highlighting goes away, and based on watching the list in > > the > > > > > debugger, the property does seem to change, but the new selection is > > > > > not highlighted. Do I need to invalidate something in addition to > > just > > > > > setting the property? > > > > > > > > > > In case it matters > > > > > - the list is inside a component which is repeated in a Repeater. > > > > > - there is an item renderer > > > > > - the data provider is a custom IList implementation. > > > > > > > > > > But all other use cases (user click, up-down arrows, clearing > > > > > selection programmatically) work perfectly. > > > > > > > > > > Thanks. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
