5 Answers, 1 is accepted
If you refer to my blog post this actually is attached behavior - not built-in feature.
Kind regards,Vlad
the Telerik team

You need to register the namespace similar to the example project. I've attached latest version of this demo with server-side scrolling of almost 2 mil records.
All the best,Vlad
the Telerik team

Thanks you for the clarification and the code. This works well. Just a couple of things. Although the code builds and runs fine my designer displays this error related to the Scrolling class:
System.NullReferenceException
Object reference not set to an instance of an object.
at Telerik.Windows.Controls.GridView.Scrolling.CustomScrolling.SizeChanged(Object sender, SizeChangedEventArgs e) in C:\Documents and Settings\jamunger\my documents\visual studio 2010\Projects\RadControlsGridDemo\RadControlsGridDemo\CustomScrolling.cs:line 76 at System.Windows.FrameworkElement.OnSizeChanged(Object sender, SizeChangedEventArgs e) at MS.Internal.JoltHelper.RaiseEvent(IntPtr target, UInt32 eventId, IntPtr coreEventArgs, UInt32 eventArgsTypeIndex)
Any thoughts on what might be causing this?
Also, I would like to allow the user to scroll one record at a time by clicking the up or down arrow on the scrollbar without waiting. Do you think that it would be possible to tweak this code to handle that?
This is looking really close to the solution that we are looking for.
Thanks,
Jason
Please use this code to fix the design-time error:
Unfortunately I'm not sure if MoveToPage() method of the DomainDataSource will do the work in your case - page record be record.
Vlad
the Telerik team