ALV issue

[Former Member]

Hello,

I want to display an output in ALV format. I have called the following method.

CALL METHOD ref_grid->set_table_for_first_display( 
    EXPORTING 
      i_structure_name = 'ZAIL_PA0001STRU'                     *" 'USR_STRUC'*     
   CHANGING 
      IT_FIELDCATALOG = it_fcat 
      it_outtab        = t_usr_table ). 

If I use structure ZAIL_PA0001STRU that is defined in the data dictionary, it displays everything in the table including the title.

However, if I use structure USR_STRUC that is defined locally, it doesn't display the title of the table even though I have filled

the data into the IT_FIELDCATALOG.

Could you tell me why and how I can fix this problem? I would like to use the local structure rather than the global one.

Thanks,

AS.

[Former Member]

You can not use local structure, You can either use structure or fieldcatalog and If you want to use fieldcatalog comment structure assignment it is not necessary.

CALL METHOD ref_grid->set_table_for_first_display(

EXPORTING

• i_structure_name = 'ZAIL_PA0001STRU' " 'USR_STRUC'

CHANGING

IT_FIELDCATALOG = it_fcat

it_outtab = t_usr_table ).

CALL METHOD ref_grid->set_table_for_first_display(

EXPORTING

i_structure_name = 'ZAIL_PA0001STRU' " 'USR_STRUC'

CHANGING

• IT_FIELDCATALOG = it_fcat

it_outtab = t_usr_table ).

Edited by: Gungor Ozcelebi on Jun 30, 2009 5:41 PM

Edited by: Gungor Ozcelebi on Jun 30, 2009 5:46 PM

[former_member194416]

You can not use local structure, You can either use structure or fieldcatalog and If you want to use fieldcatalog comment structure assignment it is not necessary.

CALL METHOD ref_grid->set_table_for_first_display(

EXPORTING

• i_structure_name = 'ZAIL_PA0001STRU' " 'USR_STRUC'

CHANGING

IT_FIELDCATALOG = it_fcat

it_outtab = t_usr_table ).

CALL METHOD ref_grid->set_table_for_first_display(

EXPORTING

i_structure_name = 'ZAIL_PA0001STRU' " 'USR_STRUC'

CHANGING

• IT_FIELDCATALOG = it_fcat

it_outtab = t_usr_table ).

Edited by: Gungor Ozcelebi on Jun 30, 2009 5:41 PM

Edited by: Gungor Ozcelebi on Jun 30, 2009 5:46 PM

[Former Member]

Hi Anna

Gungor Ozcelebi is right.

Here u can indicate a dictionary structure only, if you don't want to define a structure in dictionary, u need to transfer the definition of local structure by IT_FIELDCATALOG parameters.

The problem could be there isn't a fast way to fill the catalog table for a local structure.

There's the fm REUSE_ALV_FIELDCATALOG_MERGE but it works for ALV by fm so not for OOP, this fm can fill the catalog table reading the definition of a structure in a program, so a tip can be to use this fm and then to transfer the data from IT_CATALOG (defined as type SLIS_T_FIELDCAT_ALV) to IT_FIELDCATALOG (defined as LVC_T_FCAT).

The main fields have the same name so you can use MOVE-CORRESPONDING statament

LOOP AT IT_CATALOG.
   MOVE-CORRESPONDING IT_CATALOG TO IT_FIELDCATALOG.
   APPEND IT_FIELDCATALOG.
ENDLOOP.

Another solution can be to transfer the dictionary field as reference to IT_FIELDCATALOG, that works if the field of local strcture is defined as dictionary field.

TYPES: BEGIN OF MY_STRUCT.
               BUKRS TYPE BKPF-BUKRS,
               VBELN TYPE VBAP-VBELN,
            END   OF MY_STRUCT.

DATA: MY_TAB TYPE TABLE OF MY_STRUCT.
DATA: IT_FIELDCATALOG TYPE LVC_T_FCAT,
            WT_FIELDCATALOG TYPE LVC_S_FCAT.


WT_FIELDCATALOG-FIELDNAME = 'BUKRS'.
WT_FIELDCATALOG-TABNAME   = 'MY_TAB'.
WT_FIELDCATALOG-REF_FIELD  = 'BUKRS'.
WT_FIELDCATALOG-REF_TABLE = 'BKPF'.
APPEND WT_FIELDCATALOG TO IT_FIELDCATALOG.

WT_FIELDCATALOG-FIELDNAME = 'VBELN'.
WT_FIELDCATALOG-TABNAME   = 'MY_TAB'.
WT_FIELDCATALOG-REF_FIELD  = 'VBELN'.
WT_FIELDCATALOG-REF_TABLE = 'VBAP'.
APPEND WT_FIELDCATALOG TO IT_FIELDCATALOG.

Max

[Former Member]

Thanks to Gungor and Max.

My question has been resolved.