How to use ALV for Hierarchical Lists

Can anyone tell me how to use ALV for hierarchical lists using the function code REUSE_ALV_HIERSEQ_LIST_DISPLAY?

Swarna

Hello, there are some nice examples in SAP which use this function module, so you might want to check them out ( where used etc. )

In essence, this is a call in one of my ABAPs

  CALL FUNCTION 'REUSE_ALV_HIERSEQ_LIST_DISPLAY'
  EXPORTING
    i_interface_check              = 'I'
    i_callback_program             = gv_repid
*      i_callback_pf_status_set       = 'STATUS_DATA'
    i_callback_user_command        = 'COMMAND_DATA'
*      is_layout                      = gs_layout
    it_fieldcat                    = gt_fieldcat
   i_default                      = ' '
    i_save                         = 'A'
    i_tabname_header               = v_headers_itable
    i_tabname_item                 = v_items_itable
    i_structure_name_header        = v_headers_table
    i_structure_name_item          = v_items_table
    is_keyinfo                     = gs_keyinfo
    i_bypassing_buffer             = 'X'
  TABLES
    t_outtab_header                = i_headers
*      t_outtab_item                  = i_result
    t_outtab_item                  = i_report
  EXCEPTIONS
    program_error                  = 1
    OTHERS                         = 2.

The field cat creation worked like this :
FORM fieldcat.

DATA: ls_fieldcat TYPE slis_fieldcat_alv.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
     EXPORTING
          i_internal_tabname = v_items_itable
          i_structure_name   = v_items_table
     CHANGING
          ct_fieldcat        = gt_fieldcat.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
     EXPORTING
          i_internal_tabname = v_headers_itable
          i_structure_name   = v_headers_table
     CHANGING
          ct_fieldcat        = gt_fieldcat.

ENDFORM.


and of course you need to tell the thing what is key and item

gs_keyinfo-header01 = 'PA'.
gs_keyinfo-item01  = 'PA'.
gs_keyinfo-item02 = 'SAPDOC'.
PERFORM fieldcat. 

I hope this helps you and not confuse you,
Cheers.