Filling the Grid's bottom area with empty rows

Hi, is there a way to fill the grid's bottom area with empty rows? If not, how do I get the bounds of the last visible row? ( so that I might be able to add additonal rows if the bounds of the last visible row isn't covering up the bottom part of the gird) Thanks in advance

Attached is a sample that does several things to try to get the grid to fill up its client area. The first is to add enough rows so that the entire clientarea is covered (even if it requires a partial row to show). The second try shrinks the client area to be exactly the size required by the grid. The third does a combonation of the first two. It fills up the clientarea, but does not use a partila row. Instead it shrinks it slightly to get an exact fit. The fourth technique gives you a bottomless grid. If you scroll to the end, it adds a row so there will always be another row.