When I double-click on the ALV, how to get the index id?

Hi.

When I double click one record on the ALV grid, the parameter 'rs_selfield-tabindex' doesn't return the index in my output table.

It seems that rs_selfield-tabindex returns the rowno as displayed and not the corresponding rowno of my output table. Resulting in wrong values after the grid is sorted.

How can I determine the row in my table from the selected cell in the grid?