How to do a select before selection screen dsiplayed?

[Former Member]

Hi, experts.
How to do a select before selection screen is displayed.
I need to get a value and set it as default in one of the selection-screen parametrs ( select- option ) ?

[DominikTylczyn]

Hello @Former Member 

You can use the AT SELECTION-SCREEN OUTPUT event or INITIALIZATION.

Best regards

Dominik Tylczynski

[Former Member]

Can you pls explain how it should work?
cause mine example is not works

INITIALIZATION.
  data last_storndate type ZSTORNDATE.

AT SELECTION-SCREEN OUTPUT.
  perform get_date.
  FORM get_date.
  SELECT MAX( zstorndate ) INTO last_storndate FROM zstorn_logs.
  endform.
SELECTION-SCREEN BEGIN OF BLOCK t1 WITH FRAME TITLE text-001.
  SELECT-OPTIONS :
    so_vbeln for ZSTORN_LOGS-vbeln,
    so_reslo for ZSTORN_LOGS-reslo,
    so_wadat for ZSTORN_LOGS-wadat_ist,
    so_user  for ZSTORN_LOGS-USNAM,
    so_storn for zstorn_logs-ZSTORNDATE DEFAULT last_storndate.
SELECTION-SCREEN END OF BLOCK t1.

[DominikTylczyn]

Try this

DATA last_storndate type ZSTORNDATE.

SELECTION-SCREEN BEGIN OF BLOCK t1 WITH FRAME TITLE text-001.
  SELECT-OPTIONS :
    so_vbeln for ZSTORN_LOGS-vbeln,
    so_reslo for ZSTORN_LOGS-reslo,
    so_wadat for ZSTORN_LOGS-wadat_ist,
    so_user  for ZSTORN_LOGS-USNAM,
    so_storn for zstorn_logs-ZSTORNDATE.
SELECTION-SCREEN END OF BLOCK t1.

INITIALIZATION.
  SELECT MAX( zstorndate ) INTO last_storndate FROM zstorn_logs.
  so_storn[] = VALUE #( ( sign = 'I' option = 'EQ' low = last_storndate ) ).

[Former Member]

doesn't work

[DominikTylczyn]

see my updated answer above

[Former Member]

Thanks, now it works.
As i understand it clears last_storndate.
Should i always fill parametrs and select-options like this?

[DominikTylczyn]

It doesn't actually clear last_storndate. The INITIALIZATION select max zstorndate and puts it into last_storndate. Then it initializes SELECT-OPTIONS so_storn with it. Yes, you should always fill SELECT-OPTIONS like that.