Just to repay the quick reply to my email, you should know that a very quck
test case failed to replicate the bug without the rest of my framework
involved. I have also noticed a few more things about this bug. First, it
only happens if I have a sorted field (I don't do any custom sorting, and it
happens at least with String sorting, which is the most common field anyone
sorts on in this application) and it mostly happens when the text I am
sorting on has changed somewhere (unfortunately, that's common enough that I
can't be sure that's part of the true cause). I don't have lines selected at
the time. I created a function to try and find the bug (in a DataGrid
subclass):
public function set veriticalScrollPosition(n: Number): void {
Application.application.logError("Setting scroll position to
" + n);
super.verticalScrollPosition = n;
}
Note that this failed to ever run, even when I saw the bug happen. Are there
any other functions that could trap when this bug is rearing its head? I
like having the source to most/all of the framework for when something like
this happens, but there sure is a lot of code to try and understand.
Daniel
On 4/5/07, Alex Harui <[EMAIL PROTECTED]> wrote:
I don't remember any bugs like that. Can you build a small test case
that uses regular DataGrid?
------------------------------
*From:* [email protected] [mailto:[EMAIL PROTECTED] *On
Behalf Of *Daniel Grace
*Sent:* Thursday, April 05, 2007 12:40 PM
*To:* [email protected]
*Subject:* [flexcoders] DataGrid Jumping
I am using a DataGrid that is mostly stock (overrode drawRowBackground
and set dataProvider. This particular datagrid has a lot of
information in it that changes every second. That's all fine.
If there is a vertical scroll bar (common) and I am scrolled to the
top, with no rows selected, it will periodically jump down to what
appears to be roughly the halfway point. This seems to happen when
something changes (and happened a lot less frequently before I put the
timers in). There is a chance that I have messed something up, but I
doubt it. I know that it happened before I overrode set dataProvider.
My real question is -- is this addressed in the hotfix? I don't see
specific mentioning of it on
http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=kb401224 ,
though there are fixes in the datagrid. After seeing a few problem
reports here I'm not overly eager to install the hotfix if it is not
going to fix a problem that I am having (also, the page referenced
suggests this strategy).
Or, does anyone know what might be causing my scroll position to jump,
without overriding any functions that would logically cause such a
behavior?
Daniel
