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Assign Component ...

Posted on Oct 11, 2005 at 08:43 AM 64 Views

Hi All,

With ASSIGN COMPONENT it's possible to do a 'horizontal' read from a structure. I'm looking for a solution to put back (the changed) value in the 'source' field.

Example :

LOOP AT itab.

DO x TIMES.

ASSIGN COMPONENT sy-index OF STRUCTURE wa_structure TO <f1>.

IF sy-subrc ne 0. continue. ENDIF.

new_value = <f1> + 1.

  • how to get this changed value back in original source field (wa_structure-field_x)

...

ENDDO.

ENDLOOP.

Thanks,

Rob Makelaar

The Netherlands

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4 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Oct 11, 2005 at 08:49 AM
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    hI rOB?

    Why just don't you do

    <fs1> = <fs1> + 1 .

    is that what you ask...

    regards,

    If you find my answer rellevant, please don't forget the reward

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  • author's profile photo Former Member
    Former Member
    Posted on Oct 11, 2005 at 09:44 AM
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    Stephan,

    Here's the problem : I have a structure with 100 values. For 40 of them, i must do a conversion to KG's with a function module. 40 times a call with 'hard-coded' the name of the field is a possibility. But with assign component its much smaller.

    Regards,

    Rob Makelaar.

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    • Former Member
      Oct 11, 2005 at 09:55 AM

      Hi Rob

      Your code is right, if you update your field-symbols, you'll update your field:

      LOOP AT itab.

      DO x TIMES.

      ASSIGN COMPONENT sy-index OF STRUCTURE wa_structure

      TO <f1>.

      IF sy-subrc ne 0. continue. ENDIF.

      • For example conversion from kg to g

      <f1> = <f1> * 1000.

      ENDDO.

      ENDLOOP.

      Max

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  • author's profile photo Former Member
    Former Member
    Posted on Oct 11, 2005 at 10:05 AM
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    Hi,

    See my code for the real problem :

    LOOP AT tab.

    MOVE-CORRESPONDING tab TO wa_convert.

    DO 13 TIMES.

    ASSIGN COMPONENT sy-index OF STRUCTURE wa_convert TO <f1>.

    IF sy-subrc NE 0.

    EXIT.

    ELSE.

    <b>value_in = <f1>.</b> CLEAR value_out.

    CALL FUNCTION 'MD_CONVERT_MATERIAL_UNIT'

    EXPORTING

    i_matnr = tab-matnr

    i_in_me = tab-meins

    i_out_me = 'KG'

    i_menge = value_in

    IMPORTING

    e_menge = <b>value_out</b>

    EXCEPTIONS

    error_in_application = 1

    error = 2

    OTHERS = 3.

    IF sy-subrc <> 0.

    ENDIF.

    I can't do a call of a FM with a field-symbol, so i must transfer it to a 'help' variable. At this point i'm loosing track of the source field. Any suggestions ?

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    • Former Member
      Oct 11, 2005 at 10:10 AM

      DATA: VALUE_IN LIKE EKPO-MENGE,

      VALUE_OUT LIKE EKPO-MENGE.

      LOOP AT TAB.

      MOVE-CORRESPONDING TAB TO WA_CONVERT.

      DO 13 TIMES.

      ASSIGN COMPONENT SY-INDEX OF STRUCTURE WA_CONVERT TO <F1>.

      IF SY-SUBRC NE 0.

      EXIT.

      ELSE.

      VALUE_IN = <F1>. CLEAR VALUE_OUT.

      CALL FUNCTION 'MD_CONVERT_MATERIAL_UNIT'

      EXPORTING

      I_MATNR = TAB-MATNR

      I_IN_ME = TAB-MEINS

      I_OUT_ME = 'KG'

      I_MENGE = VALUE_IN

      IMPORTING

      E_MENGE = VALUE_OUT

      EXCEPTIONS

      ERROR_IN_APPLICATION = 1

      ERROR = 2

      OTHERS = 3.

      IF SY-SUBRC <> 0.

      ENDIF.

      MOVE VALUE_OUT TO <F1>.

      ENDIF.

      ENDDO.

      ENDLOOP.

      If you're sure the field (assigned to field-symbol) is always like EKPO-MENGE, you can try to do this:

      FIELD-SYMBOLS: <FS_MENGE> LIKE EKPO-MENGE.

      LOOP AT TAB.

      MOVE-CORRESPONDING TAB TO WA_CONVERT.

      DO 13 TIMES.

      ASSIGN COMPONENT SY-INDEX OF STRUCTURE WA_CONVERT TO <FS_MENGE>.

      IF SY-SUBRC NE 0.

      EXIT.

      ELSE.

      CALL FUNCTION 'MD_CONVERT_MATERIAL_UNIT'

      EXPORTING

      I_MATNR = TAB-MATNR

      I_IN_ME = TAB-MEINS

      I_OUT_ME = 'KG'

      I_MENGE = <FS_MENGE>

      IMPORTING

      E_MENGE = <FS_MENGE>

      EXCEPTIONS

      ERROR_IN_APPLICATION = 1

      ERROR = 2

      OTHERS = 3.

      IF SY-SUBRC <> 0.

      ENDIF.

      ENDIF.

      ENDDO.

      ENDLOOP.

      Max

      Message was edited by: max bianchi

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  • author's profile photo Former Member
    Former Member
    Posted on Oct 11, 2005 at 10:49 AM
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    How simple can it be !

    Thank you, Max and Svetlin. I'll devide the points between the two of you.

    Once again thank you.

    Rob Makelaar.

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