Dynamic Search Help in WDA Table

Question

Hello Expert,
I would like to assign the standard search help for Webdynpro abap table in item level,
I know using the below code we can assign the search help for particular input field ,
DATA lo_nd_info TYPE REF TO if_wd_context_node_info.
           lo_nd_info = lo_nd_eqt_partner->get_node_info( ).
           CALL METHOD lo_nd_info->set_attribute_value_help
             EXPORTING
               name            = 'PARTNER' " Your attribute Name
               value_help_mode = '121' " Valid value help mode
               value_help      = 'DEBI'. " Search help name.
But my scenario is i have one table which is having threee columns,
Partner type   partner   name,
so based on the partner type i would like to call the standard search help ,
if the line item 1 is having partner type 'KU' then i need to assign DEBI search help
if the line item 2 is having Partner type 'LI' or 'AG' then i need to assign KRED search help ,
If the line item 3 is having Partner type 'AP' then i need to assign VKNK search help
so please help me to achieve the same.
Thanks,
Sankar

Answer 1

One method to achieve this functionality would be  :
1. Find out the maintenance screen and function group of the table maintenance generator say 2000 and ZFGRP.
2. Go to SE80 and open ZFGRP screen number 2000.
3. For Field number 1 , it is assumed that there is already a standard search help for it.
4. For field 2 - create a module in Process on Value Request Event in PAI of the maintenance screen ( Similar to any module pool program)
5. Use FM DYNP_VALUES_READ to read the value of field 1 on the screen ( Because this is before enter is pressed and field 1 on the module pool porogram would not be populated with value )
6.  While creating internal table for this FM, filter out all the values that are not required based on value obtained above.
call the FM F4IF_INT_TABLE_VALUE_REQUEST( In Process on Value request event of field 2 in PAI)