I am using TreeGrid with 3 levels of data grouping having subtotals at each level. The grid is working fine. However, there is a little issue. The rows where subaggregates are shown are having too much of height. I tried setting property aggregatesHeight to a smaller value. This applies only to the last aggregates level. Rest of the subtotal rows are having height much more than the set value. Is there any way I can set the height of the subaggregate row value?