Selecting a range of rows in a GridView

Thanks for the reference, but it does not appear that this is what I am looking for. The programming example provided by the reference (and by other references for GridView.Rowcommand that I have found) provides server-side functionality, and it would be best if I could provide the enhanced functionality entirely on the client side. The existing functionality to check each individual row is performed on the client side. When the page is then posted back, the GridView is scanned for checked items and the appropriate server-side processing is performed on each of them. So, my goal is to simply enhance the existing client-side processing that occurs prior to the postback. Thanks again, Steve B