>First, setting value of child table cursor name to the RecordSource of the grid on page 2 solved the problem.
>
>To answer your question on parameters. I have two CA objects, one for parent and another for child table And I chose to refill the records of the child CA instead of parameter for the following reason(s): ... (I don't remember <g>). And so far I don't quite see the difference, speed or otherwise - for this particular case - of refilling the cursor vs. refresh.

Are you embedding parameter into SelectCmd or you use parameter in both cases? If the latter, then CursorRefresh is better - you don't need to re-build the grid every time and also I believe there is some extra processing involved internally in CA (e.g. CursorFill is supposed to be more expensive).