TYPES: BEGIN OF ty_table,
         position TYPE i,
         text     TYPE char3,
       END OF ty_table,
       ty_table_t TYPE STANDARD TABLE OF ty_table WITH KEY position.

DATA: go_alv       TYPE REF TO cl_salv_table,
      go_columns   TYPE REF TO cl_salv_columns,
      go_column    TYPE REF TO cl_salv_column,
      go_events    TYPE REF TO cl_salv_events,
      go_functions TYPE REF TO cl_salv_functions,
      gv_string    TYPE string.

DATA(gt_data) = VALUE ty_table_t(
  ( position = 1   text = 'ABC'  )
  ( position = 2   text = 'XYZ' )
  ( position = 3   text = 'QWE' ) ).


CLASS lcl_report DEFINITION.
  PUBLIC SECTION.
    METHODS:
      on_after_salv_function  FOR EVENT after_salv_function  OF cl_salv_events IMPORTING e_salv_function.

ENDCLASS.

CLASS lcl_report IMPLEMENTATION.
  METHOD on_after_salv_function.
    LOOP AT gt_data INTO DATA(wa).
      wa-position = sy-tabix.
      MODIFY gt_data FROM wa.
    ENDLOOP.
  ENDMETHOD.
ENDCLASS.

DATA:
  lo_report TYPE REF TO lcl_report.

START-OF-SELECTION.
  TRY.
      cl_salv_table=>factory(
         IMPORTING
           r_salv_table = go_alv
         CHANGING
           t_table = gt_data ).
    CATCH cx_salv_msg .
      MESSAGE 'Ошибка при создании ALV' TYPE 'E'.
  ENDTRY.

  CREATE OBJECT lo_report.

  go_columns = go_alv->get_columns( ).

  TRY.
      go_column = go_columns->get_column( 'TEXT' ).
      " настраиваем текст
      go_column->set_long_text( 'Text' ).
      go_column->set_medium_text( 'Text' ).
      go_column->set_short_text( 'Text' ).
    CATCH cx_salv_not_found.
  ENDTRY.

  TRY.
      go_column = go_columns->get_column( 'POSITION' ).
      " настраиваем текст
      go_column->set_long_text( 'Position' ).
      go_column->set_medium_text( 'Position' ).
      go_column->set_short_text( 'Position' ).
    CATCH cx_salv_not_found.
  ENDTRY.

  go_events = go_alv->get_event( ).
  SET HANDLER lo_report->on_after_salv_function FOR go_events.

  go_functions = go_alv->get_functions( ).
  go_functions->set_all( abap_true ).

  go_alv->display( ).