col header select

I am dealing with a very large recordset for my grid (80,000 records). What I would like to do is pass the records back to my page in smaller groups. What my problem is, I would like to do the sorting at the server side before I return the data so I need to turn the sorting off but yet allow the user to click on a header to send an event for me to capture to sort. My question is...what event is sent when a row header is clicked?

Thanks,
Sandy

moving this post to grid section

>I am dealing with a very large recordset for my grid (80,000 records). What I would like to do is pass the records back to my page in smaller groups. What my problem is, I would like to do the sorting at the server side before I return the data so I need to turn the sorting off but yet allow the user to click on a header to send an event for me to capture to sort. My question is...what event is sent when a row header is clicked?

Thanks,
Sandy