LOOP AT SCREEN REQUIRED SELECT-OPTION

[brkcnplt]

Hi Experts ,
In my case I need to make s_proc is required if s_objid is not inital ,

Here is my code which I tried.

SELECT-OPTIONS: s_objid FOR crmd_orderadm_h-object_id,
                s_proc FOR crmd_orderadm_h-process_type NO INTERVALS MODIF ID md1.
SELECTION-SCREEN: END OF BLOCK blok1.

AT SELECTION-SCREEN OUTPUT.

  LOOP AT SCREEN.
    IF s_proc-low IS NOT INITIAL.
      IF screen-group1 = 'MD1'.
        screen-required = '1'.
        MODIFY SCREEN.
      ENDIF.
    ENDIF.
  ENDLOOP.

What I'm missing ?
Kind Regards.

[former_member1716]

brkcnplt,

You can achieve the same requirement using AT SELECTION SCREEN event as given below:

AT SELECTION SCREEN.
IF s_objid is not initial and s_proc is initial.
*** Write your error message here asking the user to populate s_proc when S_objid is entered.
ENDIF.

Regards!

[brkcnplt]

thank you , this solved my problem.

I wonder what if I wanted to do the same thing at selection-screen output. Is there any way to do that there ?
Thank you again

[Sandra_Rossi]

brkcnplt You can do whatever you want in the output block. But why would you want to validate the input not during input validation?

[former_member1716]

brkcnplt,To understand that you first need to understand the difference between the two events, knowing the difference can give you a better understanding.Regards!