At the moment not sure - my test data only has the same 4 items in, but I think it's going to vary.
On Thu, Jan 22, 2009 at 6:34 PM, Tracy Spratt <[email protected]> wrote: > How many items? This might be easier with Repeater. > > > > Tracy Spratt > Lariat Services > > Flex development bandwidth available > ------------------------------ > > *From:* [email protected] [mailto:[email protected]] *On > Behalf Of *nwebb > *Sent:* Thursday, January 22, 2009 7:14 AM > *To:* flexcoders > *Subject:* [flexcoders] itemRenderer data question (recycling) > > > > Hi, > > I have 2 List components on a page. > The one on the left displays the names of some "bundles" - e.g. "*Bundle > 1*" > The one on the right displays the items in the selected bundle, plus a > percentage value - e.g. "*item1 - 10%*" "*item2 - 55%*" "*item3 - > 61%*" > > The items are the same for all bundles, but their percentages may change as > the user selects different bundles. If that happens I want to highlight that > itemRenderer. (eg when the percentage changes, highlight renderer) > > > I looked at a similar example from Alex Harui - he compares a DataGrid's > listData.UID to the previous UID (stored as a property on the renderer). If > they match, he knows he has the same item and changes that value. > > I have implemented IDropInListItemRenderer (so I have access to the UID) > but the renderer-recycling of the List means that even when the UID's match, > the "oldPercent" value I stored doesn't actually match up to item being > displayed - in other words, the renderer which previously displayed "*item1 > - 10%*" may now be displaying "*item3 - 61%*" , so the percentage HAS > changed, but that's because it's displaying a different item! > > Is my only option to send both the new% and old% in via the dataprovider, > or is there another way to get around this issue? > > Cheers > > > > >
