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When I insert a row into a grouped CExtReportGridCtrl, that group expands after I call UpdateSortOrder.

1. How can I keep the node from expanding?
2. How can I detect if the node is already expanded?
3. If I expand the node and have not called the sort update, does the expanding code go ahead and update the sort order?

The CExtReportGridWnd class is derived from CExtTreeGridWnd which implements a tree grid. So you can use CExtTreeGridWnd::Item***() methods based on HTREEITEM row handles for browsing the tree row. In the case of report grid control, the row’s HTREEITEM handle is a pointer to a report grid item (CExtReportGridItem*). The leaf rows without child items are the report grid items you registered in the report grid. All other non-leaf tree rows are built by the report grid dynamically. This allows you to detect the exact location of each row in the report grid window. Unfortunately you cannot insert a new item without without rebuilding the sort/group order completely. This feature is in our to-do list and we will implement this soon.

Thanks for the response that does explain some other questions I have.

My real concern is that when I insert an item int a collapsed group, it expands. I cannot have my application acting in this way.

I’m sure I can come up with a work around if this is the intended behavior.

Actually what you want to achieve is not supported at the moment. We plan to add this soon.