Select options in web dynpro ABAP (search help f4 problem)

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hi...

from the Tutorial of select options i have created select option for two parameters S_CARR_ID and S_CONN_ID but i get f4 help for only S_CARR_ID, but the parameters passed to both for m_handler->add_selection_field are the same.

i also tried to attach my search help by passing one more parameter (I_VALUE_HELP_ID) but it dose not help.

could any one suggest me how to get f4 help.

thank you.

Regards

kailash.

code snap ->

init the select screen

wd_this->m_handler =

wd_this->m_wd_select_options->init_selection_screen( ).

create a range table that consists of this new data element

lt_range_table =

wd_this->m_handler->create_range_table(

i_typename = 'S_CARR_ID' ).

add a new field to the selection

wd_this->m_handler->add_selection_field(

i_id = 'S_CARR_ID'

it_result = lt_range_table

i_read_only = read_only

).

create a range table that consists of this new data element

lt_range_table =

wd_this->m_handler->create_range_table(

i_typename = 'S_CONN_ID' ).

add a new field to the selection

wd_this->m_handler->add_selection_field(

i_id = 'S_CONN_ID'

it_result = lt_range_table

i_read_only = read_only ).