Setting VirtualQueryableCollectionView VirtualItemCount clears collection

[Konstantin]

Hi, I use VirtualQueryableCollectionViewwith following code (copied from here http://www.telerik.com/help/silverlight/using-data-virtualization.html):
view.ItemsLoading += (s, e) =>
{
context.Load<Order_Detail>(query.Skip(e.StartIndex).Take(e.ItemCount)).Completed += (sender, args) =>
{
var lo = (LoadOperation)sender;
if (lo.TotalEntityCount != -1 && lo.TotalEntityCount != view.VirtualItemCount)
{
view.VirtualItemCount = lo.TotalEntityCount;
}
view.Load(e.StartIndex, lo.Entities);
};
};

If TotalEntityCount was changed (new items were added on Server), VirtualItemCount is setted to new value. But setter of VirtualItemCount  clears internal collection and fills it by null values. As a result view will contains empty placaholders for old records.

[Vlad]

Hi,

 Indeed this is by design - every time you change the VirtualItemCount you will be forced to re-download the data.

Regards,
Vlad
the Telerik team

[ss]

I dont like this behaviour. Dou you know some way how can I keep old items? 

[Charlie]

I dont like that design either.  Is there a workaround to this design?  Can QueryableDomainServiceCollectionView and VirtualQueryableCollectionView be used interchangeable?

Thanks,

Charlie J.

[Christina]

Has this changed in the last two years? Or is there still no way to not re-download data when changing VirtualItemCount?