Sorry to be obtuse, but this is still giving me problems... (BTW Many thanks Alex for looking into the image issue, that's very helpful)
So I have a renderer that will have a few textfields, and I want to extend ListItemRenderer. The rows will be of different heights due to different amounts of text in the textfields, and the item renderer should not display a scrollbar of any kind. My questions: 1) Where should I set the ".text" values for my textfields--that is, what actually displays? Do I set it in set data() or in commitProperties()? 2) How much of ListItemRenderer's methods should I override? It looks like I need to do most of them--createChildren() to create my textfields, commitProperties() to set all their values (or do I--see 1), measure() to get the sizes, updateDisplayList() to lay everything out, and get and set data(). Do I need to call super.methodName() on all these? If so, what does extending ListItemRenderer get me that I couldn't get by writing a custom UIComponent? 3) I had been thinking of get and set data() as ways of referring to the object being listed, where _data is an instance of the value object I am listing. Is this right? What is listData? Thanks for not having called me a dumbass so far, at least not out loud, OK DAH On Sep 7, 2007, at 5:47 PM, Alex Harui wrote: > > Yes, you should deal with listData in commitProperties or later. > That's why it is only one level of hairy. > > From: flexcoders@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Tracy Spratt > Sent: Friday, September 07, 2007 3:08 PM > To: flexcoders@yahoogroups.com > Subject: RE: [flexcoders] Re: Unwanted scrollbars on my List > itemRenderer--measure() help? > > > “listData is available when … commitProperties runs” and > commitProperties runs after set data(), yes? So if a renderer needs > to use listData, it should do that work in commitProperties. > Right? That clears up some questions I had about ListItemRenderer. > > That’s 0.2 orders of magnitude less hairy. > > Tracy > > From: flexcoders@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui > Sent: Friday, September 07, 2007 5:52 PM > To: flexcoders@yahoogroups.com > Subject: RE: [flexcoders] Re: Unwanted scrollbars on my List > itemRenderer--measure() help? > > The "rules" are: > > listData is set for you and should never be modified by the renderer. > > listData is available when the dataChange event fires or > commitProperties runs > > explicitWidth should be set so use that to your advantage. > > Is there any way you can know by the url of the image what its > height will be? > > From: flexcoders@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of David Ham > Sent: Friday, September 07, 2007 2:43 PM > To: flexcoders@yahoogroups.com > Subject: [flexcoders] Re: Unwanted scrollbars on my List > itemRenderer--measure() help? > > > It should only be one level of hairy, not three... > > LOL. Sorry, I wax hyperbolic late in the day, when the caffeine has > jacked me up and Flex has dragged me behind its car for a ways. I'll > dig around in measure() and see what I can do. > > Do I need to worry about setting listData when I subclass > ListItemRenderer? I am getting null object reference errors around > it... > > OK > DAH > > > > > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
