Thursday, November 26, 2015

Control Break - ON CHANGE OF



ON CHANGE OF triggers when there is any change of the first occurrence of mentioned fields’ value. It means it actually works like AT NEW statement. If there is any change of the value of the mentioned field then ON CHANGE OF will trigger. At the time of triggering all of other fields contain their respective data. Hence it doesn’t go for *** value at the time of triggering. ON CHANGE OF can be used outside the loop also.

REPORT  zctrlbrk_on_change NO STANDARD PAGE HEADING.

TYPES: BEGIN OF ty_tab,
        werks TYPE mard-werks,
        matnr TYPE mard-matnr,
        lgort TYPE mard-lgort,
       END OF ty_tab.

DATA: wtab TYPE ty_tab,
      itab TYPE TABLE OF ty_tab.

START-OF-SELECTION.

  SELECT matnr werks lgort
    UP TO 25 ROWS FROM mard
    INTO CORRESPONDING FIELDS OF TABLE itab.

  IF sy-subrc = 0.
    SORT itab BY werks.
    WRITE: / 'Material', 20 'Plant', 27 'Storage Location'.
    ULINE.

    LOOP AT itab INTO wtab.
      WRITE: / wtab-matnr, 20 wtab-werks, 27 wtab-lgort.

      ON CHANGE OF wtab-werks.
        WRITE: '=== On Change Of triggers at plant - ', wtab-werks.
      ENDON.
    ENDLOOP.
  ENDIF.

Now at debugging level we can see as follows. At first loop iteration system will definitely triggers the ON CHANGE OF statement because the plant data is new. All other fields contain their respective data at the time of triggering.


Similarly when there is any change of plant then system triggers it again. In this case it is at SY-TABIX = 3.


In this way whenever there is any change of data then it works. The final output is as follows.

4 comments:

Shalini said...


Hi, This is shalini from Chennai learned SAP Training in Chennai from mr.karthick. The training really was good and i got selected in leading mnc company as SAP Consultant.

You can contact 8122241286 for Best SAP Training in Chennai or reach www.thecreatingexperts.com

Anonymous said...

SAP Success Factors Real Time Hands on Training in Chennai...

Don't always Depend on Training Institute Alone and so please aware of Best Trainers too..

http://thecreatingexperts.com/sap-successfactors-training-in-chennai/

If You need a Best Trainer over SAP Success Factors Means??? Please ready for an DEMO From the Trainer MR.Karthick
CONTACT:8122241286

Both Classroom/Online Training is Available!!!!!!

Anonymous said...

Informative Blog...For a long time I was craving for a career growth in programming and then I came to know that THE CREATING EXPERTS is the one who provide training with hands on training and real time scenarios

http://thecreatingexperts.com/sap-abap-training-in-chennai/

contact 8122241286

Anonymous said...

Can we use on change of' in OOABAP concept by anyway because it is not allowing to use.Throwing error.Please suggest.