Scrollbar events

Hi,

I am using grid.On clicking the vertical scrollbar in the grid,i need to alert the first visible row in the grid.

When scrolling, the first visible row will be changing which is unselected row.

I need to capture that unselected row.

Is there any way to do it.

currently i captured the scrollbar event, but unable to capture the first visible row datas.

Kindly help me in fixing this issue.

Thanks in advance,
BalaSathya.S