Hi Chris, I had the same dilema. Unfortunately, I got a response that it's currently not supported for this release. I dont feel that this feature would be released soon. But still we have to wait for the roadmap. http://xceed.com/CS/forums/thread/14165.aspx Hth  

Would the new Xceed DataGrid for WPF 3.0 support Data Virtualization? We mostly work with heirarchical data and we populate data upon expansion of a node item. Is this possible?