Blocking Searchhelp and Create New Searchhelp ABAP Interview Questions

How to block a pre-existing search help and create new search help which contains the old ones data and the new one which entered now.

Look at this statement .

parameters :p_pernr like pa0001-pernr MATCHCODE OBJECT new_search.

If you define like this previous search help is gone.

You have to create new search help into the dictionary .

or else .

parameters :p_pernr like pa0001-pernr

define like this
use this event

AT Selection-screen on p_pernr.

under this event call this function module and pass required data .

F4IF_FIELD_VALUE_REQUEST
* F4 help also returning the value to be displayed in internal table

F4IF_INT_TABLE_VALUE_REQUEST