SET PARAMETER & call transaction not working for Z transaction

Dear Experts,

I am using

SET PARAMETER ID 'QLS' FIELD rs_selfield-value.

CALL TRANSACTION 'ZKAPAT_SEED_01'.

for a Z transaction in my ALV prgram to jump on to that Z transaction.. But Whenever I double click on the document number which leads the control to that Z transaction it leads the control to that statement but the number doesn't appear in the field in which i want the document number to appear..

Please Guide me..

Reagards,

Mahesh