I actually tried this (my dataProvider for the grid is an 
XMLListCollection being populated by a jsp. The grid has custom item 
renderers if that's relevant).

anyhow, I have an "update" button which will call the jsp and get 
new results when clicked. I've set it up so the click() method 
correctly captures the scroll position, calls the jsp, and then sets 
the scrollToIndex to the previous value of the scroll position. It 
works great while the "busy cursor" is displayed, but it reverts 
back to scrolled all the way at the top once the actual data comes 
in from the jsp (it takes about 3 seconds to update the grid with 
the new data).

any ideas on where the scroll position is being reset?

--- In flexcoders@yahoogroups.com, "Deepa Subramaniam" 
<[EMAIL PROTECTED]> wrote:
>
> Hi Jordan -
> 
>  
> 
> You can keep track of the verticalScrollPosition property in your
> DataGrid and upon receving UPDATES, re-set the 
verticalScrollPosition to
> the previous value and the DataGrid will jump to the last scroll
> position and show the correct content. 
> 
>  
> 
> -deepa
> 
>  
> 
> ________________________________
> 
> From: flexcoders@yahoogroups.com 
[mailto:[EMAIL PROTECTED] On
> Behalf Of Jordan Snyder
> Sent: Monday, June 26, 2006 7:34 PM
> To: flexcoders@yahoogroups.com
> Subject: [flexcoders] Keeping DataGrid from scrolling to top on 
update
> to dataProvider
> 
>  
> 
> Hello All,
> 
> I am working on an app in which I poll the server quite frequently 
to
> get new information.  The information comes to me in an XML format 
that
> I simply assign as the dataProvider for a DataGrid component. 
> 
> I have to keep in consideration the fact that the user may have 
selected
> a certain row, and may want to delete that row even after an 
update to
> the dataProvider is made, so I keep track of the selectedIndex 
property
> and reselect upon an update.
> 
> But if the user has not selected a row, the DataGrid will 
automatically
> scroll to the top upon an update, even if the user has scrolled to 
the
> bottom of the grid.  
> 
> Is there a way around this?  I found a way to scrollToIndex(), but 
no
> way of getting the currently viewed items.  It may have something 
to do
> with the various renderer properties available on the DataGrid, 
but I
> have a very limited understanding of this, so it's over my head.
> 
> Surely this problem has been run into before, but I can't seem to 
find
> the right combination of search terms to figure out a method of 
solving
> it.
> 
> Does anyone have any ideas or proven methods for the problem?  Any 
help
> would be greatly appreciated.
> 
> Thank you,
> 
> Jordan Snyder
> [EMAIL PROTECTED]
> www.jordansnyder.com
>







------------------------ Yahoo! Groups Sponsor --------------------~--> 
See what's inside the new Yahoo! Groups email.
http://us.click.yahoo.com/2pRQfA/bOaOAA/yQLSAA/nhFolB/TM
--------------------------------------------------------------------~-> 

--
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/

<*> 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/
 



Reply via email to