how to create a line number on table/grid - oracle adf jdeveloper

this will give a line number on af:table 
it's easy. follow this steps :

just right click on the table
add a column anywhere you need them 

on table properties, set varStatus dengan vs

on the label column properties, set value to #{vs.index+1}

thanks to Mohammad Jabr on http://mjabr.wordpress.com/2011/06/03/display-row-number-in-aftable/