Issue with UltraGrid Child rows while updating column.

519

Ashish posted over 13 years ago

Hi ,

I am using a parent child relation in ultragrid.Data shows fine when I expand the child rows and when i update one of the columns it works fine, . But when I expand 2-3 child rows and update a particular column of a child row ....same value if visible in almost all the expanded rows. I am calling CellDataRequested once i update the column ...and after that it shows same value for that column in all expanded child rows in the column. i have checked the table , view......such data is not there.....

Does anybody faced similar issue???

Any help will be greatly appriciated.

Thanks,

ashish.

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Offline Mike Saltzman posted over 13 years ago

Hi Ashish,

My guess is there's something wrong with your implementation of CellDataRequested. The grid is probably asking for data for each row and your code may be handing back the data for a single row to all of them.

Of course, that's just a wild guess, there's really not enough information here to be sure.

If you can post a small sample project demonstrating this issue, I'd be happy to take a look at it and try to figure out what's wrong.
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Ashish posted over 13 years ago in reply to Mike Saltzman

Hi Mike ,

Thanks for your quick response on this. I have figured out the issue , was fecthing wrong data in CellDataRequested .

But i still have a question. Lets say we have 3 parent rows expanded (A,B and C with their child rows A1,B1 and C1) and now we did some update on A1. So ideally when we call FireInitialise row operation on A .....corresponsing opeartion should be fired on A and A1 only.......

But I have obsever this operation takes place on all the expanded child rows like B1 and C1.

I am using following line of code for firing CellDataRequested event.

 _historyGrid.Selected.Rows.Cast<UltraGridRow>()
                            .Select(r => r.Index)
                            .ToList()
                            .ForEach
                            (
                                index =>
                                {
                                    _HistoryBindingSource.Rows[index].ResetCachedValues();
                                    _historyGrid.Rows[index].Refresh(RefreshRow.FireInitializeRow);                                      
                                }
                            );

Let me know your thoughts on this as I have poor understanding of CellDataRequested event .

Thanks,
Ashish.