Contains data in the current viewport. Also contains the offset to this data, so that the actual row number may be
determined. Do not assume that the first row in rows is the first visible row, because extra rows may be provided
for easier scrolling without going to the server.
Contains data in the current viewport. Also contains the offset to this data, so that the actual row number may be determined. Do not assume that the first row in
rowsis the first visible row, because extra rows may be provided for easier scrolling without going to the server.