CALL FUNCTION IN NEW TASK -> REFRESH screen.

[sjk1977]

Hello Guys,

following situation:

• a screen (5000) with a custom control.
• custom container (cl_gui_custom_container) is bound to the custom control
• within the custom container is a html viewer  (cl_gui_html_viewer)
• a function module is started 'IN NEW TASK' and checks database changes. If there is a change in database, the module ends and calls a form routine.
• in this form routine i try to jump to the PAI with 'SET USER-COMMAND 'CHG' '

Problem -> the jump to the PAI is not working (ends in nirvana). One exception: i press on screen before data changes occurs. Then the programms calls the PAI.

Any idea why or how to solve the problem.

THX for your answers.

Some Code:

Screen 5000:

PROCESS BEFORE OUTPUT.
  MODULE STATUS_5000.
  MODULE init_control_processing_5000.

PROCESS AFTER INPUT.
  MODULE USER_COMMAND_5000.

MODULE init_control_processing_5000.

MODULE init_control_processing_5000 OUTPUT.

  IF go_cont_head IS NOT BOUND.
    "Kopfbereich
    CREATE OBJECT go_cont_head
      EXPORTING
        container_name = 'CONT_HEAD'
      EXCEPTIONS
        OTHERS         = 1.

    CREATE OBJECT go_html_head
      EXPORTING
        parent = go_cont_head.
    IF sy-subrc <> 0.

    ENDIF.

    CALL FUNCTION 'WDY_CONSTRUCT_URL'
      EXPORTING
        application         = 'ZMM_ZK_HEAD'
      IMPORTING
        out_url             = l_url
      EXCEPTIONS
        invalid_application = 1.

    g_url = l_url.

    go_html_head->show_url( g_url ).

   CALL FUNCTION 'STARTE_TASK'
      EXCEPTIONS
        communication_failure = 1
        system_failure        = 2.
   ENDIF.

  ENDIF.

ENDMODULE. 

Function module 'STARTE_TASK'

FUNCTION starte_task .
*"----------------------------------------------------------------------
*"*"Lokale Schnittstelle:
*"  EXCEPTIONS
*"      SYSTEM_FAILURE
*"      COMMUNICATION_FAILURE
*"----------------------------------------------------------------------
CALL FUNCTION 'ZMM_ZK_HOLE_SCANNER_DATEN'
     STARTING NEW TASK g_scanner
     DESTINATION IN GROUP 'parallel_generators'
     PERFORMING refresh ON END OF TASK
     EXPORTING
       scannername = g_scanner.
ENDFUNCTION.

MODULE USER_COMMAND_5000.

DATA: l_url_200 TYPE char200,
         ls_data TYPE zmm_zk_scan.

   CASE sy-ucomm.
     WHEN 'EXIT'.
       LEAVE PROGRAM.
     WHEN 'BACK'.
       LEAVE TO SCREEN 1000.
     WHEN 'CANC'.
       LEAVE TO SCREEN 1000.
     WHEN 'CHG'.
       READ TABLE gt_data INTO ls_data INDEX 1.

       CONCATENATE g_url
                   '&mat='
                   ls_data-mat
              INTO l_url_200.
       go_html_head->show_url( l_url_200 ).
       CALL METHOD go_html_head->do_refresh
         EXCEPTIONS
           cntl_error = 1.

       CALL FUNCTION 'STARTE_TASK'.

       CLEAR sy-ucomm.

     ENDCASE.
ENDMODULE.   

Form REFRESH

FORM refresh USING p_task TYPE clike.

  SET USER-COMMAND 'CHG'.

ENDFORM.                    "refresh

[Kiran_Valluru]

Hi,

Why don't you write the logic of PAI for change in FORM refresh.?. Also you can use events ( OO ABAP ) to achieve this.

Hope this helps u.,

Thanks & Regards,

Kiran.

[sjk1977]

Reason: same problem. It doesn´t work.

[Former Member]

Hi,

Have you already tried the cl_gui_timer class?

[kesavadas_thekkillath]

Try using statement suppress dialog http://help.sap.com/abapdocu_70/en/ABAPSUPPRESS.htm -

After the PBO processing, the system triggers the event PAI in such as way, as if a user had pressed Enter