SERIAL number in ALV

Question

Hi experts,
iam doing alv report. iam having sl.no. filed in the internal table.
for output depending on different options, it is not showing the sl.no. in proper order.
for each input or requirement it is taking the same sl.no. series and the output is correct we r getting but sl.no order is not correct.
ex:option 1.
output:
sl.no.
1
2
3......
ex:option 2. (according to option this values only we require but, the serial number should be 1,2,3, in this order)
output:
sl.no.
12
21
32
33....
right answers can be rewarded......................
Message was edited by:
        dasr r

Answer 1

actually..........
if i go for normal reporting......
if i do not give procurement type e or f............it will fetch all the records belong to
e and f. sl.no coming is 1,2,....................100...............correct iam getting.
if i give procurement type e or f............it will fetch some records which belongs to e or f     that records only it will fetch but the sl.no. sequence is notlike 1,2,3,..........100. it is giving 1,3,5,6, ...........50.