firstRow( ) example
The firstRow( ) method can be used to preserve, and later return to, the top displayed row in the grid. Use a rowset's goto( ) method to position a rowset to a previously bookmarked row.
// After a user scrolls through a grid and clicks to change view displayed in
// form...
f.saveFirst = f.g.firstrow()
f.current = q.rowset.bookmark()
// To restore grid to same display as before
q.rowset.goto(f.savefirst) // positions grid to previously saved firstrow
q.rowset.goto(f.current) // if the previously saved current row was visible
// before it will be visible now, so grid moves
// current row highlight to already visible row
// displaying data from f.current row.