I have a problem which my users find extremely annoying with the subtotal feature of C1FlexGrid. I have a fairly large grid that periodically receives updates from the network where each message constitute a row. I have followed the example and samples way of providing this subtotaling feature however as we need if the grid changes (e.g. add date, re-sort, move columns) the subtotal tree will cease to exist and thus must be re-initialized. Thus re-initing the subtotal in the AfterDataRefresh does the job, however, this causes the user's expand/collapse nodes to be lost because a clearing of the subtotal, re-sorting, re-subtotal is unable to persist which nodes were expanded or collapsed. I've even tried to create an invisible columns to hold this information, but it will also go away along with the tree outline.
Do you have any suggestions? Thanks. Running outta time and ideas