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]> wrote: > > > > > > > > > > Good. Try scrollToIndex() > > > > ________________________________ > > > From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On > Behalf Of Richard Rodseth > Sent: Wednesday, September 19, 2007 5:04 PM > > To: flexcoders@yahoogroups.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]> wrote: > > > We use UID for selection mgmt, but there still might be issues in setting > > selectedItem, selectedIndex, so no guarantees > > > > > > > > ________________________________ > > > > > > From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On > > Behalf Of Richard Rodseth > > Sent: Wednesday, September 19, 2007 3:28 PM > > > > To: flexcoders@yahoogroups.com > > Subject: Re: [flexcoders] Setting selectedIndex > > > > > > > > > > > > > > > > Excellent. I see this is explained here: > > > > > http://livedocs.adobe.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhelp.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]> wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > The list relies on uids, If your proxy has the same uid for an index > that > > > might help > > > > > > > > > > > > ________________________________ > > > > > > > > > From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On > > > Behalf Of Richard Rodseth > > > Sent: Wednesday, September 19, 2007 3:11 PM > > > To: flexcoders@yahoogroups.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]> 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: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] > On > > > > Behalf Of Richard Rodseth > > > > Sent: Wednesday, September 19, 2007 1:29 PM > > > > To: flexcoders@yahoogroups.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. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
