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.