Update underlying data, refresh datarow display and expand details row

Looooooka

Trying to update the underlying data using signalr.
This works great.
After updating the data I call
dataRow.invalidate().draw();
which redraws the table and it looks perfect.
The problem is doing so closes the details row of the row in question.
Is there any way to preserve the state of the open rows, update the underlying data and have them redraw with current open/closed state?

Or at least...how does one manually trigger the details of a specific row to redraw themselves. I could then manually show opened ones after calling invalidate and draw