hi sandeep check this code:
CALL FUNCTION 'REUSE_ALV_HIERSEQ_LIST_DISPLAY'
EXPORTING
i_interface_check = ' '
i_callback_program = alv_repid
i_callback_pf_status_set = 'SET_STATUS'
i_callback_user_command = 'USER_COMMAND'
is_layout = alv_layout
it_fieldcat = fc[]
i_default = 'X' "<<<<<<<look at it...u need to do this
i_save = 'A'
is_variant = alv_variant
i_tabname_header = 'HEADER'
i_tabname_item = 'LIST'
is_keyinfo = alv_keyinfo
is_print = alv_print
TABLES
t_outtab_header = header
t_outtab_item = list.
