how can increase or decrease the no.of internal table fields dynamically.

how can increase or decrease the no.of internal table fields dynamically.

Hi all,

i have 30 fields are there in the Internal table. i want to display them in the alv report.

now my problem is, based on the condition i want to display only 10 fields or only 20 fields or only 30 fields and vise versa of the in internal table in the alv report.

how can increase or decrease the no.of internal table fields dynamically.

can any body explain me briefly with examples...

Thanks,

Mythily Guptha