I have a datagrid which sometimes received updates realtime. No problem, all the data I update also updates in the datagrid.
However, I also have expandable rows where there is another datagrid with some other information.
When I expand a row, then some information comes in and I update the data inside the expandable row. The row collapses and then I cannot expand it again, the arrow is still pointing downwards.
Not sure how the DataGrid is update however you might need to call Reload() or StateHasChanged().
@RagnarSmari I am having a similar issue. I have master-detail data grids. When I insert a new row to details and save it, I manage to keep on the same page but the parent row is collapsed. Have you solved your issue?