UI Virtualization vs Grouping

Hi,

The current (Feb CTP) implementation of ListBox does not use UI
Virtualization as soon as its Items collection is grouped. This can be a
showstopper for a lot of usage scenarios for the ListBox... Can we
expect a solution to this from Microsoft for v1 of WPF? Or is there a
documented workaround somewhere?

The only reference I could find for this problem is this post from
December 2005 [1]...

Thanks!

Pascal

[1]
http://groups.google.com/group/micro...f6d6b85d6322d9

Actually, as soon as I add a GroupStyle to the ListBox (even if the
Items collection is not grouped), the ListBox uses a regular StackPanel
instead of a VirtualizingStackPanel to layout its ListBoxItems.

For the record, I filed a bug for this:

http://lab.msdn.microsoft.com/produc...8-bc10ecea4666


Pascal

Pascal Bourque wrote:
> Hi,
>
> The current (Feb CTP) implementation of ListBox does not use UI
> Virtualization as soon as its Items collection is grouped. This can be a
> showstopper for a lot of usage scenarios for the ListBox... Can we
> expect a solution to this from Microsoft for v1 of WPF? Or is there a
> documented workaround somewhere?
>
> The only reference I could find for this problem is this post from
> December 2005 [1]...
>
> Thanks!
>
> Pascal
>
> [1]
> http://groups.google.com/group/micro...f6d6b85d6322d9
>