restict f4 based on another search help

Hello,

I have created two search helps and want to restrict values in one of the search help based on the other. For example : Depending on search1 the result of search2 is to be modified in the selection screen.

I have not created any context nodesand have only created the selection screen parameters by:

wd_this->m_helper->add_selection_field(

i_id = `ZROLE`

i_within_block = `BL01`

it_result = lr_field

I_VALUE_HELP_TYPE = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_SEARCHHELP

I_VALUE_HELP_ID = 'ZROLE').

So this way the selection screen is defined and the f4 works fine but now i am not sure how to retrieve the hit value of the first search help and pass it to second search help as an importing parameter. Please help.

Thanks,

Venkat