Can I add a record client-side to a grid after fetching data from the server

[wallytax]

I want to add a record client-side after a fetch from the server has been performed. Is this possible? Thus the grids needs to show an extra record that is not fetched from the server. In SmartClient 12.0p.

[Isomorphic]

Yes. There are a lot of ways to do this, but the best approach depends on whether you need to be able to use data paging and whether/how the extra record is reconciled with respect to the server's data model that lacks that record.

DataSource.updateCaches() lets you add records - see also ResultSet.updatePartialCache.

You can also add extra data via DataSource.transformResponse().

[wallytax]

I'm using data paging and only for the first page, it should add a virtual record. Maybe it's better to add it via the server.

[Isomorphic]

It can be, otherwise you may need to reconcile server and client record numbering in a way that can become rather complex with sorting and filtering.