Populating Field Catalog using Global Classes.

[Former Member]

Hi, I'm new to ABAP. I want to display an alv report using oops abap. While populating field catalog I'm defining work area type lvc_s_fcat and an internal table type lvc_t_fcat and doing the field catalog population as follows:

i_fieldcatalog type lvc_s_fcat

t_fieldcatalog type lvc_t_fcat

clear i_fieldcat

i_fieldcatalog-colpos = 1.

i_fieldcatalog-fieldname = 'MATNR'.

i_fieldcatalog-tabname = 'IT_FINAL'.........

...........

append i_fieldcatalog to t_fieldcatalog.

............

.............

in similar manner i'm populating the field catalog internal table and finally calling set_table_for_first_display method and passing structure and internal table to it and I'm getting the alv.

Instead of this manner is there any other manner by which I can populate field catalog i.e., is there any global class which I can use by which when I call that class and pass my internal table to its parameter and my field catalog internal table will be automatically populated ??? Please respond.....

[aferngas]

Hi Vidhya,

Your should fill the following fields:

• FIELDNAME with fieldname of your internal table
• REF_TABLE with DDIC table name
• REF_FIELD with DDIC field name of table referenced in REF_TABLE

Also you can use the function 'LVC_FIELDCATALOG_MERGE' or use SALV model.

Best regards,

Alex

[hendrik_brandes]

Hello,

have you tried the SALV-Framework? There, you do not have to deal directly with the field-catalog.

Look at the classes CL_SALV_TABLE.

Example:

DATA:
  lt_sflight    TYPE TABLE OF sflight.
DATA:
  lr_columns  TYPE REF TO cl_salv_columns_list,
  lr_funcs       TYPE REF TO cl_salv_functions_list,
  lr_salv         TYPE REF TO cl_salv_table.
SELECT * FROM sflight INTO TABLE lt_sflight.
cl_salv_table=>factory(
IMPORTING r_salv_table   = lr_salv
CHANGING  t_table        = lt_sflight
).
lr_funcs = lr_salv->get_functions( ).
*lr_funcs->set_default( ).
lr_funcs->set_all( ).
lr_columns = lr_salv->GET_COLUMNS( ).
* Modify columns.

lr_salv->display( ).

Kind regards,

Hendrik