OOPS ALV SEARCH HELP

Hi Expert.

Please help me, Due to some Functional requirement we have created OOP ALV here we

required some specific vendor Entry so We create Search help using of  ' F4IF_INT_TABLE_VALUE_REQUEST'

function.  Now my Search help some time do Miss behavior. 

Problem : When  I select vendor from search help vendor is updated in my ALV Row but SEARCH HELP

                         AUTOMATIC AGAIN RE-OPEN.

Please provide solution urgent.

Thanks & Regard.

Pradip Patel.