To create a deep structure for dynamic internal table.

Question

Hello
My ALV has fields which are defined dynamically during execution.
so, i did it in the following way,
Declared Field symbolds, DREF and fieldcatalog as,
FIELD-SYMBOLS: <t_dyntable> TYPE STANDARD TABLE,
              <fs_dyntable>.
DATA:   dref_dyntab    TYPE REF TO data,
        dref_dynwa     TYPE REF TO data.
DATA: ts_fieldcatalog TYPE lvc_t_fcat.
DATA: wa_fieldcatalog TYPE lvc_s_fcat.
Updated Fieldcatalog dynamically as,
*function module to read segment structure
    CALL FUNCTION 'SEGMENT_READ'
      EXPORTING
        segmenttyp           = v_segment_name
      TABLES
        segmentstructure     = ts_seg_structure
      EXCEPTIONS
        no_authority         = 1
        segment_not_existing = 2
        OTHERS               = 3.
    IF sy-subrc <> 0.
      CASE sy-subrc.
        WHEN '1'.
          MESSAGE e024.
          STOP.
        WHEN '2'.
          MESSAGE e025 WITH v_segment_name.
          STOP.
        WHEN OTHERS.
          MESSAGE e023.
      ENDCASE.
    ENDIF.
*FETCH FIELDS FROM STRUCTURE OF SEGMENT AND CREATE FIELDCATALOG FOR
EACH FIELD OF SEGMENT (DYNAMIC FIELD CATALOG)
    LOOP AT ts_seg_structure INTO wa_seg_structure.
      ADD 1 TO v_counter.
      wa_fieldcatalog-fieldname = wa_seg_structure-fieldname.
      wa_fieldcatalog-col_pos   = v_counter.
      wa_fieldcatalog-ref_table = wa_seg_structure-segtyp.
      APPEND wa_fieldcatalog TO ts_fieldcatalog.
      CLEAR wa_fieldcatalog.
    ENDLOOP.
and generated dynamic internal table using fieldcatalog as,
*--Method to get the structure of table using fieldcatalog.
  CALL METHOD cl_alv_table_create=>create_dynamic_table
    EXPORTING
      it_fieldcatalog = ts_fieldcatalog
    IMPORTING
*--Variable of type REF TO DATA.
      ep_table        = dref_dyntab.
  IF sy-subrc <> 0.
    MESSAGE e023.
  ENDIF.
*--Dynamic internal tables required when show segments selected
  IF p_selseg IS NOT INITIAL.
    ASSIGN dref_dyntab->* TO <t_dyntable>.
*--Create dynamic work area and assign to FS
  CREATE DATA dref_dynwa LIKE LINE OF <t_dyntable>.
    ASSIGN dref_dynwa->* TO <fs_dyntable>.
And then i populated this <t_dyntable> which is being passed as data-table to method
CL_GUI_ALV_GRID => SET_TABLE_FOR_FIRST_DISPLAY
for ALV grid Display along with above used filedcatalog ts_fieldcatalog.
Things are fine till here, but now i have the requirement to edit selected rows of the ALV display..
As you might be aware, we need a field
        TS_STYLEROW  TYPE lvc_t_styl, (i.e, a field of type 'h' and we can say as an internal table inside an internal table or else as a deep structure)
in the output internal table <t_dyntable> to meet our requirement.
My issue is about declaring one such field of type 'h' in this dynamically created internal table ''<t_dyntable>".
I tried in the following way by adding one such field to fieldcatalog :
*Field for Styling
  ADD 1 TO v_counter.
  wa_fieldcatalog-fieldname   = 'TS_STYLEROW'.
  wa_fieldcatalog-tabname     = 'TS_STYLE'.
  wa_fieldcatalog-col_pos     = v_counter.
  wa_fieldcatalog-no_out      = 'X'.
  wa_fieldcatalog-inttype     = 'h'.      " I even mentioned this
  APPEND wa_fieldcatalog TO ts_fieldcatalog.
  CLEAR  wa_fieldcatalog.
But this is creating a field of type 'C' in the table <t_dyntable> instead of what i was expecting
Guyz and respected,
Please advice me with the solution or ur ideas....
Note : The overall requirement is create a deep structure for dynamically generated internal table.
Your help is highly appreciated and unforgettable..!!!!!!!

Answer 1

hi,
Dynamic append
Dynamic internal table
Dynamic internal table
dynamic columns in ALV
Variant for dynamic selection
thanks