select only 2 type in selection screen

[#1]

i have a parameter called zzzzz

i want that the user can chosse only '99' and '88'

how i do it?

thanks.

[Former Member]

GIVE AN OPTION TO SELECT FROM THE 2 VALUES USING THE FUNCTION MODULE "'F4IF_INT_TABLE_VALUE_REQUEST" AND DO THE VALIDATION TO CHECK IF IT ONE OF THOSE VALUES OR NOT ,THIS WAY THE USER WILL HAVE TO SELECT FROM THE 2 VALUES ONLY .BELOW IS THE CODE.

initialization.

PARAMETERS : zzzz(20).

data : tab type standard table of zstr1 with header line,

rettab type standard table of DDSHRETVAL with header line.

tab-name = '98'.

append tab.

tab-name ='99'.

append tab.

*DATA : TAB(20) type c occurs 0 with header line.

*at selection-screen output.

at selection-screen on value-request for zzzz.

CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'

EXPORTING

RETFIELD = 'NAME'

VALUE_ORG = 'S'

CALLBACK_PROGRAM = sy-cprog

TABLES

VALUE_TAB = tab

RETURN_TAB = rettab.

IF SY-SUBRC <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

zzzz = rettab-fieldval .

at selection-screen on ZZZZ.

if rettab-fieldval <> 98 AND rettab-fieldval <> 99.

message e001(zmessage1).

else.

zzzz = rettab-fieldval .

endif.<i></i><i></i><i></i>