Which 'Values' need to Export in START-OF-SELECTION for Hotspot

Question

I develop a small Test Report for Hotspot, and it's working fine.
Actually, Here - Error is at START-OF-SELECTION.
I tried many combinations for passing the Parameters but It's Not Working.
Which 'Values' I need to Export ?
START-OF-SELECTION.
  CREATE OBJECT lr_details.
  lr_details->data_gathering( ).
  IF gi_final IS NOT INITIAL.
    lr_details->display_alv( ).
    lr_details->on_double_click( EXPORTING row = ? column = '?' ). " ?
    lr_details->on_link_click( EXPORTING row = ? column = '?' ).     " ?
  ELSE.
    MESSAGE 'No Data for the Selection Critaria' TYPE 'S' DISPLAY LIKE 'E'.
  ENDIF.
Here row & column are obligatory fileds - I need to pass the Values
(I am already passing the Values with Form get_aufnr_info.)
I try with Hard Coding row = 1 & column = 'AUFNR'
    lr_details->on_double_click( EXPORTING row = 1 column = 'AUFNR' ).
    lr_details->on_link_click( EXPORTING row = 1 column = 'AUFNR' ).
One may find it Silly, But in this Case - Hotspot is not working & when I go for 'BACK' it's showing IW33 (req. Tcode).
The Complete code for HOTSPOT is as follow.
METHODS:  data_gathering,
              display_alv,
              on_double_click FOR EVENT double_click OF cl_salv_events_table IMPORTING row column,
              on_link_click FOR EVENT link_click OF cl_salv_events_table IMPORTING row column.
METHOD on_double_click.
    PERFORM get_aufnr_info USING row column.
  ENDMETHOD.                   
  METHOD on_link_click.
    PERFORM get_aufnr_info USING row column.
  ENDMETHOD.
FORM get_aufnr_info  USING row TYPE salv_de_row
                        column TYPE salv_de_column.
  IF column = 'AUFNR'.
    CLEAR: gwa_final.
    READ TABLE gi_final INTO gwa_final INDEX row.
    IF sy-subrc EQ 0.
      SET PARAMETER ID 'ANR' FIELD gwa_final-aufnr.
      CALL TRANSACTION 'IW33' AND SKIP FIRST SCREEN.
    ENDIF.
  ENDIF.
ENDFORM.      

Answer 1

Thanks Clemens & Lakshmi,
But Here I am not taking a FieldCat and
cl_gui_custom_container, "Detail container
cl_gui_alv_grid        , "Detail ALV instance
I am taking display as -->code
DATA:  lr_table     TYPE REF TO cl_salv_table,
           lr_layout    TYPE REF TO cl_salv_layout,
           lr_functions TYPE REF TO cl_salv_functions_list,
           lr_columns   TYPE REF TO cl_salv_columns_table,
           lr_column1   TYPE REF TO cl_salv_column_table,
           lr_column    TYPE REF TO cl_salv_column,
           lr_events    TYPE REF TO cl_salv_events_table .
    DATA  : gr_events TYPE REF TO get_details.
    DATA: ls_layout TYPE salv_s_layout_key.
    ls_layout-report = sy-repid.
      TRY.
        CALL METHOD cl_salv_table=>factory           " call factory method of alv
*        EXPORTING
          IMPORTING
            r_salv_table   = lr_table
          CHANGING
            t_table        = gi_final.
      CATCH cx_salv_not_found .
    ENDTRY.
    lr_functions = lr_table->get_functions( ).    " activate the alv funcationality
    lr_layout  = lr_table->get_layout( ).
    lr_table->display( ).
      TRY.
        CALL METHOD pr_columns->get_column
          EXPORTING
            columnname = 'AUFNR'
          RECEIVING
            value      = lr_column.
      CATCH cx_salv_not_found.
    ENDTRY.
    lr_column->set_long_text( text-006 ).
I already developed Reports With FIELDCAT(set_table_for_first_display) with double_click
And also created a small Test Report where I am taking double_click in CLASS DEF.
Both are working.
But when I am using double_click in Reports with  START-OF-SELECTION it's not working. -
If I need not Use double_click in START-OF-SELECTION, THEN HOW I SHOULD CALL IT ??