Change the Value of column of the internal table at run time

Question

Hello Experts,
With the below code i am able to determine the value hold
by internal table at run time for a sepcific column but i am not getting the way
of how to update the internal if one of the value is changed,
  lr_desc_table ?= cl_abap_typedescr=>describe_by_data( itab  ).
  lr_desc_struc ?= lr_desc_table->get_table_line_type( ).
loop at itab assigning <fs_data>.
    loop at lr_desc_struc->components ASSIGNING <fs_comp_wa>.
      assign component  <fs_comp_wa>-name of structure <fs_data> to <fs_field>.
      lv_excel_row = <fs_field>.
     CALL FUNCTION 'SCP_REPLACE_STRANGE_CHARS'
        EXPORTING
          INTEXT  = lv_excel_row
        IMPORTING
          OUTTEXT = lv_excel_row.
      assign lv_excel_row to <fs_field>. "this is not changing the value actually hold in internal table
    endloop.
  endloop.

Answer 1

Hi,
Resolved this issue with the code mentioned below.
Code:
loop at lt_export_items assigning <fs_data>.
  ls_data = <fs_data>.
    loop at lr_desc_struc->components ASSIGNING <fs_comp_wa>.
      assign component  <fs_comp_wa>-name of structure <fs_data> to <fs_field>.
      lv_excel_row = <fs_field>.
      CALL FUNCTION 'SCP_REPLACE_STRANGE_CHARS'
        EXPORTING
          INTEXT  = lv_excel_row
        IMPORTING
          OUTTEXT = lv_excel_row.
          concatenate 'ls_data-' <fs_comp_wa>-name into  lv_var.
          assign (lv_var) to <fs_var>.
          <fs_var> = lv_excel_row.
    endloop.
    modify lt_export_items from ls_data .
    clear:ls_data.
  endloop.
Take care,
Sanju