smartform prob

i am doing a smartform using 'select-options'. i am passing the select-option as a table to my smartform.

i am getting the function module name of sform in get_sfname.

call function get_sfname.

tables

t_vbeln = s_vbeln.

-

*i am using structure 'selopt'.*

in smartform ---> form interface: tables:

t_vbeln like selopt.

*----

but i am getting a short dump. doing error analysis it shows dat thers sumthn wrong in passing the select-options as tables.

pls help.