We are trying to implement pagination (with virtual scrolling instead of actual pages) for every group of Grid widget. So, we have Grid with serverPaging, serverGrouping and virtual scrolling. As far as I understand, Kendo Grid doesn't support paging if it's grouped. So, the idea is to return from server empty grouped results (with empty items for every group), collapse all groups by default and then after user opens a group - send separate request and populate just this particular group.
Could you please help us with implementation showing an example of something similar or tell any better way to reach the goal?
Just to make it clear - currently our grouped (aggregated) data can have millions of rows in every group.