Does this also work for a grid grouping control?
>Normally, just calling ResetVolatileData does not trigger any QueryCellInfo calls. Here is a sample that puts a different value and color into a cell everytime QueryCellInfo is called. There is also a button event that adds 10 rows to the grid and then calls ResetVolatileData so the grid knows about the new rows. During the button click, there is not QueryCellInfo activity.
http://www.syncfusion.com/support/user/uploads/GC_Virtual_42a7eb8b.zip