RE: [flexcoders] Re: cellRenderer question

[Matt Chotin]

setValue is called whenever you mouse over the item as well because it will give you the opportunity to change the renderer’s appearance based on the selection/highlight state.  So if setting the value is an expensive operation for your renderer it is a good idea to check whether the value has actually changed before doing any manipulation.   Matt   From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of sanjayd Sent: Monday, June 27, 2005 11:51 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: cellRenderer question   In my experience, setValue() is called even if you just move the mouse over the cell...am I missing something ? --- In flexcoders@yahoogroups.com, Manish Jethani <[EMAIL PROTECTED]> wrote: > On 6/27/05, sanjayd <[EMAIL PROTECTED]> wrote: > > > I wanted to color a cell in a grid, if the value (in the cell) meets > > certain conditions (for example, if the value is negative). So, I > > added couple of lines of code in the setValue() method of the > > cellRenderer. This works. However, the problem is that, the setValue() > > method gets called very frequently.. > > setValue() is called every time you scroll because the DataGrid reuses > the rows and just updates them with new data every time.  If rowCount > is 7 (default) and you have 100 rows, the DataGrid always maintains > just 7 row objects and keeps reusing them (nice, no?). > > That's your only option, AFAIK. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com -- 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  Visit your group "flexcoders" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.