Am I missing any syntax ?

Question

Hi,
I am new to Dialog Prog, can you please let me know what is the prob in the below code.I have to call a Subscreen 5000 up on one condition.
*&      Module  STATUS_4000  OUTPUT
*       text
MODULE status_4000 OUTPUT.
  SET PF-STATUS 'PF4000'.
  CALL SUBSCREEN: 'REF1' INCLUDING 'ZPROG'  '5000'.
*  SET TITLEBAR 'xxx'.
ENDMODULE.                 " STATUS_4000  OUTPUT
*&      Module  USER_COMMAND_4000  INPUT
*       text
MODULE user_command_4000 INPUT.
CASE SY-UCOMM.
WHEN 'GETP'.
CALL SUBSCREEN '5000'.
Here Ref1 is my sub screen name in screen 4000 ( in tab strip). It is throwing me this error .
"," OR "ID... FIELD..." EXPECTED AFTER SUBSCREEN 

Answer 1

Hi,
First of all, you always use statement CALL SUBSCREEN in flow logic not in module definition.
Use:-
At screen logic:-
PROCESS BEFORE OUTPUT.
   CALL SUBSCREEN REF1 INCLUDING V_PROG V_DYNNR.
PROCESS AFTER INPUT.
   MODULE INIT_SUBSCREEN.
   CALL SUBSCREEN REF1.
In PAI,
MODULE INIT_SUBSCREEN.
  IF <condition>. "if condition is true then call sub-screen
    V_PROG = sy-repid.
    V_DYNNR = '5000'.
  ENDIF.
ENDMODULE.
Hope this solves your problem.
Thanks & Regards,
Tarun