Hi,
I would like to add a behaviour to my grid, so that all child rows are fully visible when the user expands a row.
So when expanding a row, and the child rows exceed the available space below the root row, it should scroll down far enough for all (or at least as many as possible) child rows to be visible.
Also, I would prefer a solution without DataPresenterCommands.RecordBelow etc. because selection changes are expensive (each selection change loads certain data in my grid) and selection changes may not be possible at all if the user is currently editing a row.
Can you provide me with any hints on such an implementation?
Hello,
Thank you for your post. I have been looking intot he functionality that you are trying to achieve and I can suggest using the BringRecordIntoView method of the XamDataGrid and its RecordExopaned event. In the event handler for the event you can call the BringRecordIntoView method and pass the first child record of the record that is expanded as parameter for the method. This way the XamDataGrid will scroll the first child record of the currently expanded record at top and this will result in showing as much child records as possible. I have created a sample application for you, that demonstrates how you can implement this approach.
If you need any further assistance please do not hesitate to ask.
Sincerely,
Krasimir
Developer Support Engineer
Infragistics
www.infragistics.com/support
Thanks, but not quite yet what I need.
1. The parent row still needs to be visible. I achieved that by adding another line of code below yours:
xamdataGrid1.BringRecordIntoView((e.Record as DataRecord).ChildRecords[0]);xamdataGrid1.BringRecordIntoView((e.Record as DataRecord));
2. Scrolling must not be done if all child records are actually visible. I tried comparing to GetRecordsInView(true), but this method does not seem to list child records, so I cannot check if all child rows are in the list of visible rows.
3. It should not scroll to the top, but only as far as necessary to avoid confusion.
Can you help me with these issues?