How to make check box cloumn as editable and get the index of the row selected in the event

Hi ALl,

Can any one pls let me know how to make a column editable in a table view..

I have a check box in my last column and i need to set check box for few records and on selection, i need to do an activity.

Can any one pls help me with the below issues.

1. How to make check box column as editable

2. how to get the index of the rows selected in the Event ( say on clicking on the button after selection )

for the 2nd issue i used cl_thtmlb_util=>Get_event_info and tried to get the index .. but not wokring..

Kindly help !