Hi Sameer,
We will hardly be able to group rows from different segments. The
"group by" feature is specific to the C1FlexGrid control, while it has
no native support in C1DataObjects. It looks like Virtual Mode is not
compatible with grouping the rows in C1FlexGrid. Use Static Mode
and server-side filtering when you're working with very large tables
and need to group data using C1FlexGrid.
Regards,
-Andrey