Question Re: F4 ON VALUE-REQUEST (second screen) in Technology Q&A

F4 ON VALUE-REQUEST (second screen)

former_member2492 — Sat, 08 Jun 2019 15:31:45 GMT

My sceen 200 is called from a button in screen 100.

At PROCESS AFTER INPUT.(screen 200)PROCESS ON VALUE-REQUEST.
FIELD LT_TABLE-LGORT
MODULE f4help.

Code:

SELECT SINGLE LGORT
 FROM MARD
 WHERE MATNR EQ @LT_TABLE-MATNR
 AND WERKS EQ @LT_TABLE-werks
 INTO @IT_FINAL.


 CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
 EXPORTING
 RETFIELD = 'LGORT'
 VALUE_ORG = 'S'
 TABLES
 VALUE_TAB = IT_FINAL
 RETURN_TAB = IT_RETURN.


 WRITE IT_RETURN-FIELDVAL TO LT_TABLE-LGORT.
 REFRESH IT_FINAL.

But it is not opening.

If I simply call the perform ,it will open automatically...

How can I fix this?

Thank You in advance

Re: F4 ON VALUE-REQUEST (second screen)

Sandra_Rossi — Sat, 08 Jun 2019 17:02:11 GMT

In debug, what happens?

Re: F4 ON VALUE-REQUEST (second screen)

rameez_khan — Sat, 08 Jun 2019 23:13:58 GMT

You are doing select single and data must be going into work area and not internal table.

Can you please paste the complete code ?

Re: F4 ON VALUE-REQUEST (second screen)

DoanManhQuynh — Sun, 09 Jun 2019 15:17:16 GMT

your naming convention quite confused, are you trying to set F4 help in table control? and what is the point of select single...

Re: F4 ON VALUE-REQUEST (second screen)

former_member2492 — Sun, 09 Jun 2019 18:47:34 GMT

rameez.khan I think it is the complete code,the only thing missing is the data declaration,which I have taken from this link .Please let me know what else you need!

quynh.doanmanh I am trying to populate the f4 help with the results from my select.Basically I dont want to show all the Storage Locations but only those who are selected.If I put that as a Perform it will open populated automatically.After adding it inside a Module at PAI it does not show at all,how can I fix this?

sandra.rossi the table is filled,only when I call it inside the module at PAI it does not show,if I put it somewhere else it opens automatically,I am trying to avoid this.Can you help me?

Re: F4 ON VALUE-REQUEST (second screen)

DoanManhQuynh — Mon, 10 Jun 2019 00:32:54 GMT

its difference when you call F4 help for a selection screen field, dynpro field or dynpro table control...from your code, I can see you call method for LT_TABLE-LGORT, which is syntax of a work area then I think you trying to set search help for field in table control. in that case, you can follow this wiki:

https://wiki.scn.sap.com/wiki/display/ABAP/Filtering+F4+Help+values+in+Table+control%2C+based+on+other+field+value

if you trying to set for normal field in dynpro (which i found it quite strange with your variable name), you can check demo program: DEMO_DYNPRO_F4_HELP_MODULE

Re: F4 ON VALUE-REQUEST (second screen)

RaymondGiuseppi — Mon, 10 Jun 2019 07:33:26 GMT

Is the field name in the dynpro definition actually 'LT_TABLE-LGORT' and, if yes, is this field defined in some TABLE CONTROL?

In case of TABLE CONTROL you must use the field STEPL to communicate the record index with related FM, get it from FM DYNP_GET_STEPL.
You are also required to get values of plant and material currently on screen before selecting data, the PAI is not yet executed so Abap variables are not updated, use FM DYNP_VALUES_READ (also with STEPL if TABLE CONTROL)
Either give the actual field name on dynpro to the F4 FM or update it explicitly from returned value with FM DYNP_VALUES_UPDATE (also with STEPL...)

Re: F4 ON VALUE-REQUEST (second screen)

Sandra_Rossi — Mon, 10 Jun 2019 08:08:37 GMT

"Debug" means setting a breakpoint and checking variable contents at each step, you could then understand what's going on, or at least give us some good information. You should avoid using heading lines, they have been OBSOLETE for a long time now, because they are prone to errors. I tried your code, and it works fine for me as follows (using screen field SCARR-CARRID instead of LT_TABLE-LGORT):

DATA scarr TYPE scarr.
CALL SCREEN 200.
*PROCESS ON VALUE-REQUEST.
*FIELD SCARR-CARRID MODULE f4help.
MODULE f4help INPUT.
  SELECT *
   FROM scarr
   INTO TABLE @DATA(it_final).
  DATA it_return TYPE TABLE OF ddshretval.
  CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
    EXPORTING
      retfield   = 'CARRID'
      value_org  = 'S'
    TABLES
      value_tab  = it_final
      return_tab = it_return.
  scarr-carrid = VALUE #( it_return[ 1 ]-fieldval OPTIONAL ).
ENDMODULE.

Re: F4 ON VALUE-REQUEST (second screen)

former_member2492 — Mon, 10 Jun 2019 08:16:31 GMT

CALL FUNCTION 'DYNP_GET_STEPL'
 IMPORTING
 POVSTEPL = LD_POVSTEPL .

Fixed everything,thanks

Re: F4 ON VALUE-REQUEST (second screen)

former_member2492 — Mon, 10 Jun 2019 09:02:27 GMT

Sandra I only needed to define STEPL in the FM. thank you too

Re: F4 ON VALUE-REQUEST (second screen)

Sandra_Rossi — Mon, 10 Jun 2019 10:01:22 GMT

So, you meant the window did open but your problem was different (getting the right line of the table control). Be careful to ask the right question, next time.

Re: F4 ON VALUE-REQUEST (second screen)

former_member2492 — Mon, 10 Jun 2019 11:34:37 GMT

sandra.rossi your comment is appropriate...again.It is not my problem that you do not read the question, as it seems the below user did help me solve the problem without asking 100 question.I have described the problem in detail above....and why should I be careful asking question? wft are you threatening me with down votes?