Databound GridGroupingControl subtables

[Administrator]

I have a GridGroupingControl which I bind to a DataView.
The DataView''s underlying DataTable has several relations
to other tables. When I expand a particular row in the
Top Level table, I correctly see the subtables for the
relations. However, there don''t seem to be any rows in
those subtables (and the Summary line says there are 0
items). How do I get the rows to appear?

(I''m sure I must be missing something, but I have no idea
where to start debugging here; it seems to match the
samples, given that my case is a little different).

Also, I verified that there are indeed related rows in those
tables. In TableControlCurrentCellActivated, I added:
_log.Debug("subrows: " + item.Categories().Length);
and it prints "subrows: 3". However, the Categories subtable
displays zero rows.

Thank you very much,
Dan

[Administrator]

I can see the behavior you described in 2.1.0.9.

If I set

this.gridGroupingControl1.DataSource = new DataView(parentTable, "[parentID] < 3", "", DataViewRowState.CurrentRows);

the child tables come up empty. But if set

this.gridGroupingControl1.DataSource = parentTable.DefaultView;
parentTable.DefaultView.RowFilter = "[parentID] < 3";

the child tables come up populated OK.

Can you use this as a work around until we investigate the non-working use case further? This may have to do with the objects using different bindingcontexts.

[Administrator]

Thank you.

Since it''s not a core feature of what I''m doing and making that change would break the model/view separation in my program, what I''ll do is add a DirectTrac item to follow this. If I''m getting closer to shipping and it''s not resolved, I''ll try the workaround.

Also, is there a way that each of those subtables can be separated expanded/collapsed? E.g., each one has a "+" button next to it and isn''t fuly shown until that button is pressed. Thanks.

[BTW: I''m currently on 2.1.0.61]

[Administrator]

If I understand what you want, try handling the grid.Table.RecordExpanding event, and close all netested tables at that point. Here is a little sample. GGCParentToChilds_9128.zip

[Administrator]

Yes; that''s pretty good. If there''s a way to have the "+"/"-" buttons on the left, it would be cool. In this version, you click the header bars (and I assume I can add an event to re-close them when the user clicks again on the summary).

Thanks,
Dan