--- In flexcoders@yahoogroups.com, "nathanpdaniel" <ndan...@...> wrote: > > I'm using the HorizontalList (HList) component and I've run into an issue > where when data is updated dynamically some items are not rendered. > I load data via an XML file which sets up in my app several XMLListCollection > variables. Users can select different menu options to determine which > collection is used as the dataProvider for the HList. These collections > range in length from 3 - 50 items. My HList only displays 5 at any given > time (with a horizontal scroll bar). > What will happen occassionally is when I go from a short list (3 items) to a > larger list, items will not render. > The new item at position HList.dataProvider[old list length - 1] (zero based > index) will be missing. Not as though I have invalid data so it renders > wrong but, as though the data is not there at all. It puts spacing in there > to account for it but, it's the equivalent of setting an object's visible > property to false but includeInLayout to true. The other 4 in the first 5 > will render properly. I scroll the list to show more, HList.dataProvider[old > list length + 1] and HList.dataProvider[old list length + 2] will not render. > As I scroll away from the beginning of the list more and more of the 5 items > to display won't render until it throws an error from all 5 not rendering. > However, if I go from a short list, of say 3 items, to a list of 4 items, > then a list of 5 items, the probably is avoided across all collections. It > will occur if I go from a list of length < 5 directly to a list of lenght > > 5. Also of note, if the list length < 10, I can avoid throwing errors, > however, if it gets beyond that, it starts throwing them. > I am setting a filter on the HList.dataProvider saying if (of all products) > the product matches one of the two that need to be ignored, filter them from > the list. So irregardless of which collection is the dataProvider, if > product A or product B is in this list, filter it out. I am also using an > itemRenderer (a custom component to display an image). > Anyone have any ideas, it's been driving me nuts for a while now. Sometimes > it doesn't even happen at all and I've yet to be able to consistantly > reproduce it with anything. I'm sort of at a loss for what to do since, I > don't really know what's causing the issue... ??
It sounds like you have the old "trying to set properties in creationcomplete" issue. Check out Q2 here http://www.magnoliamultimedia.com/flex_examples/Amys_Flex_FAQ.pdf to see if that is it. HTH; Amy
