ALV Error

[Former Member]

Hi guys,

I'm new to ABAP and trying now to create a simple ALV report, but I'm getting exception in the second ALV call function statement. This code is downloaded from the web with some modifications, so I thought it will work, but something is not ok. Can you please give me an advice?

Thank you, AR

the code:

REPORT ZTEST.

type-pools: slis.

types: begin of person,

name(20) type c,

surname(40) type c,

end of person.

data lt_person type table of person.

data ls_person type person.

data int_fcat type SLIS_T_FIELDCAT_ALV.

ls_person-name = 'xx'.

ls_person-surname = 'yy'.

append ls_person to lt_person.

ls_person-name = 'tt'.

ls_person-surname = 'ww'.

append ls_person to lt_person.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'

EXPORTING

I_PROGRAM_NAME = sy-repid

I_INTERNAL_TABNAME = 'lt_person'

CHANGING

CT_FIELDCAT = int_fcat

EXCEPTIONS

INCONSISTENT_INTERFACE = 1

PROGRAM_ERROR = 2

OTHERS = 3.

if sy-subrc <> 0.

write: 'S:', sy-subrc.

endif.

CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'

EXPORTING

I_CALLBACK_PROGRAM = sy-repid

IT_FIELDCAT = int_fcat

I_SAVE = 'A'

TABLES

T_OUTTAB = lt_person

EXCEPTIONS

PROGRAM_ERROR = 1

OTHERS = 2.

if sy-subrc <> 0.

write: 'D:', sy-subrc.

endif.

[Former Member]

Hi

What kind of error do you get?

Please add additional exceptions to the function modules so that you could have more precise information on the error.

Rgds

Mat

[Former Member]

hi,

its having problem in REUSE_ALV_FIELDCATALOG_MERGE

try like this

TYPE-POOLS: slis.

TYPES: BEGIN OF person,
name(20) TYPE c,
surname(40) TYPE c,
END OF person.

DATA lt_person TYPE TABLE OF person.
DATA ls_person TYPE person.
DATA int_fcat TYPE slis_t_fieldcat_alv WITH HEADER LINE.

ls_person-name = 'xx'.
ls_person-surname = 'yy'.
APPEND ls_person TO lt_person.

ls_person-name = 'tt'.
ls_person-surname = 'ww'.
APPEND ls_person TO lt_person.

*CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
*  EXPORTING
*    i_program_name         = sy-repid
*    i_internal_tabname     = 'PERSON'
*  CHANGING
*    ct_fieldcat            = int_fcat
*  EXCEPTIONS
*    inconsistent_interface = 1
*    program_error          = 2
*    OTHERS                 = 3.

*IF sy-subrc = 0.
*  WRITE: 'S:', sy-subrc.
*ENDIF.

int_fcat-tabname = 'LT_PERSON'.
int_fcat-fieldname = 'NAME'.
int_fcat-seltext_m = 'Name'.
APPEND int_fcat.

int_fcat-tabname = 'LT_PERSON'.
int_fcat-fieldname = 'SURNAME'.
int_fcat-seltext_m = 'Surname'.
APPEND int_fcat.

CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
  EXPORTING
    i_callback_program = sy-repid
    it_fieldcat        = int_fcat[]
    i_save             = 'A'
  TABLES
    t_outtab           = lt_person
  EXCEPTIONS
    program_error      = 1
    OTHERS             = 2.

*IF sy-subrc = 0.
*  WRITE: 'D:', sy-subrc.
*ENDIF.

reward if usefull..

[Former Member]

Dhwani,

thanx, just one question: why is this working w/o using the REUSE_ALV_FIELDCATALOG_MERGE FM? I've read, that it is mnecessary to build the catalogue. So when to use this FM?

Thank you, AR

[Former Member]

hi,

ya its compulsary to build fieldcata log but its not necessary to use FM REUSE_ALV_FIELDCATALOG_MERGE for building field catalog..

i have never use this function module to create fieldcat...

here is the code for simple ALV

Hope this will be helpfull to u.

*&---------------------------------------------------------------------*
*& Report  ZALV_DS
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT  zalv_ds LINE-SIZE 35.

TYPE-POOLS:slis.

TABLES:mara,
       makt,
       marc.

DATA:BEGIN OF itab OCCURS 0,
      matnr LIKE mara-matnr,
      maktx LIKE makt-maktx,
      werks LIKE marc-werks,
      mtart LIKE mara-mtart,
      matkl LIKE mara-matkl,
      meins LIKE mara-meins,
      ntgew LIKE mara-ntgew,
      cellcolors TYPE lvc_t_scol,
     END OF itab.

DATA:t_fcat TYPE slis_t_fieldcat_alv,
     t_eve TYPE slis_t_event.

DATA : st_layout TYPE slis_layout_alv.

SELECTION-SCREEN:BEGIN OF BLOCK blk1 WITH FRAME TITLE text-001.
SELECT-OPTIONS:mat FOR mara-matnr.  " no intervals no-extension.
*PARAMETERS:mat LIKE mara-matnr.
SELECTION-SCREEN:END OF BLOCK blk1.

INITIALIZATION.
  PERFORM build_cata USING t_fcat.
  PERFORM build_event.

START-OF-SELECTION.
  PERFORM data_retrieval.
  PERFORM display_data.

*&---------------------------------------------------------------------*
*&      Form  build_cata
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      -->TEMP_FCAT  text
*----------------------------------------------------------------------*
FORM build_cata USING temp_fcat TYPE slis_t_fieldcat_alv.

  sy-tvar0 = sy-uname.
  WRITE sy-datum TO sy-tvar1.

  DATA:wa_fcat TYPE slis_fieldcat_alv.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'MATNR'.
    wa_fcat-ref_tabname = 'MARA'.
  wa_fcat-ref_fieldname = 'MATNR'.
  wa_fcat-col_pos = 1.
  wa_fcat-seltext_m = 'Material'.
  wa_fcat-input = 'X'.
  wa_fcat-edit = 'X'.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'MAKTX'.
  wa_fcat-seltext_m = 'Description'.
  wa_fcat-fix_column = 'x'.
  wa_fcat-key = 'X'.                                        "To color a column
  wa_fcat-edit = ''.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'WERKS'.
  wa_fcat-seltext_m = 'Plant'.
  wa_fcat-key = ' '.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'MTART'.
  wa_fcat-ddic_outputlen = 4.
  wa_fcat-row_pos = 2.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'MATKL'.
  wa_fcat-ref_tabname = 'MARA'.
  wa_fcat-ref_fieldname = 'MATKL'.
  wa_fcat-seltext_m = 'Group'.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'MEINS'.
  wa_fcat-ref_tabname = ' '.
  wa_fcat-ref_fieldname = ' '.
  wa_fcat-row_pos = 2.
  wa_fcat-seltext_m = 'Measurement Unit'.
  APPEND wa_fcat TO temp_fcat.

  wa_fcat-tabname = 'ITAB'.
  wa_fcat-fieldname = 'NTGEW'.
  wa_fcat-seltext_m = 'Net Value'.
  wa_fcat-row_pos = 2.
  wa_fcat-no_out = ' '.
  APPEND wa_fcat TO temp_fcat.


ENDFORM.                    "build_cata


*&---------------------------------------------------------------------*
*&      Form  data_retrieval
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
FORM data_retrieval.

  SELECT mara~matnr  mara~mtart mara~matkl mara~meins mara~ntgew
   makt~maktx  marc~werks
  INTO CORRESPONDING FIELDS OF TABLE itab
  FROM mara INNER JOIN makt ON
  mara~matnr = makt~matnr
  INNER JOIN marc ON
  mara~matnr = marc~matnr
  WHERE mara~matnr IN mat.

  SORT itab BY matnr.
  DELETE ADJACENT DUPLICATES FROM itab.
ENDFORM.                    "data_retrieval

*&---------------------------------------------------------------------*
*&      Form  display_data
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
FORM display_data.


  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_callback_program = 'ZALV_DS'
      it_fieldcat        = t_fcat
    TABLES
      t_outtab           = itab
    EXCEPTIONS
      program_error      = 1
      OTHERS             = 2.
  IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


ENDFORM.                    "display_data