TAdvStringGrid and scrollbar(s)

Good morning,
just to uderstand ...
In TadvStringGrid there are:
ScrollBars setted ad ssBoth
ScrollBarsAlway setted as saBoth

In this case in the form i have the grid with both scrollbars visible even if the grid is empty.
What setting i need to use in order to show, both, scrollbars only if the rows and columns "size" are out to grid client area?
Example, if the client area keep 10 rows, i do not need to shor VScrollBar, if i add one more row the scroll bar must be visible (somethin like this forum editor !).

Thank's for attention.
Bestr regards
Daniele

Set ScrollBars = ssBoth and ScrollBarAlways = saNone

Thank you Bruno ..