Vista - Grouping in a GridView inside ListView

My application requires a gridview that can display the results in
groups, so I followed the example found at
http://blogs.msdn.com/atc_avalon_tea...15/551721.aspx,
using the June CTP of .NET 3.0. This works great when the number of
rows is small, say less than 200. But when the row count grows, the
grid is horendously slow when sizing the columns, and refreshing the
data.

If I comment out the code that defines the GroupStyle for the grid
view, there is no problem with the column resizing. I think it has
something to do with the VirtualizingStackPanel that the listview uses
to host its children, and the fact that each group is now the child.
If anybody knows how to get the grouping feature to perform as well as
a gird without grouping, that would be great.

abe545@gmail.com wrote:
> My application requires a gridview that can display the results in
> groups, so I followed the example found at
> http://blogs.msdn.com/atc_avalon_tea...15/551721.aspx,
> using the June CTP of .NET 3.0. This works great when the number of
> rows is small, say less than 200. But when the row count grows, the
> grid is horendously slow when sizing the columns, and refreshing the
> data.

Hi,

The same problem here.

Here is a discussion on MS forum:
http://forums.microsoft.com/MSDN/Sho...85245&SiteID=1

paul