topic Changing Field name Dynamically in Application Development and Automation Discussions

Changing Field name Dynamically

Former Member — Tue, 27 Oct 2009 14:39:00 GMT

Hi Experts,

I need to change the Internal table field name dynamically.

Lets say the structure looks like the below,

NAME | ABSNT01 | ABSNT02 | ABSNT03 | ABSNT04

Now, I need to populate this ABSNT* fields based upon some index.

ABSNT+sy-tabix = 'A'

I tried using do varying loop but am not able to acheive the result.

Re: Changing Field name Dynamically

Former Member — Tue, 27 Oct 2009 14:44:26 GMT

U need to use the field-symbols:

FIELD-SYMBOLS: <FS> TYPE ANY.
DATA: FIELD_NAME(30) TYPE C.
DATA: V_INDEX(2) TYPE N.

FIELD_NAME = 'ABSNT'.

DO.
  MOVE SY-INDEX TO V_INDEX.
  FIELD_NAME(5) = 'ABSNT'.
  FIELD_NAME+5(2) = V_INDEX.
  ASSIGN COMPONENT FIELD_NAME OF STRUCTURE ITAB TO <FS>.
  IF SY-SUBRC = 0.
    <FS> = ....
  ELSE. 
    EXIT.
  ENDIF.
ENDDO.

mAX

Re: Changing Field name Dynamically

Subhankar — Tue, 27 Oct 2009 14:54:27 GMT

Hi ,

You can use the statement assign component . Dynamically it will populate the fields.

Re: Changing Field name Dynamically

awin_prabhu — Tue, 27 Oct 2009 15:00:54 GMT

Hi Benu,

See below logic.

DATA:fcat_wa TYPE lvc_s_fcat,

fcat_itab TYPE lvc_t_fcat,

poi_itab TYPE REF TO data,

cha(4) TYPE c.

FIELD-SYMBOLS: <itab> TYPE STANDARD TABLE.

DO 5 TIMES.

cha = sy-index.

CONCATENATE 'ABSNT' cha INTO cha.

CONDENSE cha NO-GAPS.

fcat_wa-fieldname = cha.

fcat_wa-datatype = 'STRG'.

APPEND fcat_wa TO fcat_itab.

ENDDO.

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING

it_fieldcatalog = fcat_itab

IMPORTING

ep_table = poi_itab

EXCEPTIONS

generate_subpool_dir_full = 1

OTHERS = 2.

ASSIGN poi_itab->* TO <itab>. " <itab> contains dynamic fields

Might help u.

Thanks,

Edited by: Sap Fan on Oct 27, 2009 4:02 PM

Re: Changing Field name Dynamically

Former Member — Tue, 27 Oct 2009 15:01:24 GMT

Hi Benu,

You can use Dynamic Internal table. the way to create it is given in the following link:

http://www.saptechies.com/how-to-declare-an-internal-table-dynamically-2/

Regards,

Sana.