Changing Column header text ol ALV: Object ref cl_salv_table

Question

Hi Friends,
my code:
TRY.
          CALL METHOD cl_salv_table=>factory(
            EXPORTING
              r_container    = gv_custom_container
              container_name = 'CUSTOM_300'
            IMPORTING
              r_salv_table   = gr_table
            CHANGING
              t_table        = gt_itab_email ).
        CATCH cx_salv_msg.                              "#EC NO_HANDLER
        CLEANUP.
      ENDTRY.
activate ALV generic Functions
      DATA: lr_functions TYPE REF TO cl_salv_functions_list.
      TRY.
          lr_functions  = gr_table->get_functions( ).
          lr_functions->set_default( abap_true ).
          gr_columns = gr_table->get_columns( ).
         PERFORM change_columns_text USING gr_columns.
          gr_columns->set_exception_column( value = 'LIGHTS' ).
        CATCH cx_salv_data_error.
        CLEANUP.
      ENDTRY.
      CALL METHOD gr_table->display.
Problem:
Can someone give me tips on how to change the Column text of the return table gr_table in my code.
I would like to change the text before CALL METHOD gr_table->display.
Thanks
Blacky

Answer 1

You need to get the perticular column object from the COLUMNS object
Like:
  data: lr_columns type ref to cl_salv_columns_table,
        lr_column  type ref to cl_salv_column_table.
  lr_columns = gr_table->get_columns( ).
  try.
      lr_column ?= lr_columns->get_column( 'FIELD1' ).
      lr_column->set_short_text( 'Custom Text' ).
      lr_column->set_medium_text( 'Custom Text' ).
      lr_column->set_long_text( 'Custom Text' ).
    catch cx_salv_not_found.                            "#EC NO_HANDLER
  endtry.
Check report: SALV_DEMO_TABLE_COLUMNS
Regards,
Naimesh Patel