Dynamic Programming - RTTC - Appending lines

[GrahamRobbo]

I give up! Maybe someone else can help me with this Dynamic Programming problem.

I am using RTTC to create an itab. Now I want to append lines and for some reason can't seem to crack the syntax I need.

My latest attempt looks like this...

            FIELD-SYMBOLS: <table> TYPE ANY TABLE,
                           <row> TYPE ANY.

            lo_sdescr      = cl_abap_structdescr=>create( lt_components ).
            lo_tdescr      = cl_abap_tabledescr=>create( lo_sdescr ).
            CREATE DATA lr_alloc->alloc_table TYPE HANDLE lo_tdescr.
            CREATE DATA lr_struct TYPE HANDLE lo_rdescr.

            ASSIGN lr_alloc->alloc_table->* TO <table>.

            APPEND INITIAL LINE TO <table> ASSIGNING <row>.

The syntax check I get on the APPEND statement is "You cannot use explicit or implicit index operations on tables with type "ANY TABLE".

All the doco and examples I can find use a simple "SELECT * ... INTO CORRESPONDING FIELDS OF TABLE <table>" syntax which it not what I need to do.

Any help it appreciated.

Thanks

Graham Robbo

[uwe_schieferstein]

Hello Graham

The solution is quite simple (at least to overcome your syntax error):

FIELD-SYMBOLS:
  <gt_itab>     TYPE STANDARD TABLE,  " use STANDARD instead of ANY
  <gs_struc>    TYPE ANY.

*&---------------------------------------------------------------------*
*& Report  Z_RTTI_CREATE_COMPLEX_ITAB
*&
*&---------------------------------------------------------------------*
*& NOTE: revised version of ZUS_SDN_RTTI_CREATE_STRUCTURES
*&---------------------------------------------------------------------*
*& Thread: Dynamic Programming - RTTC - Appending lines
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="980407"></a>
*&---------------------------------------------------------------------*

REPORT  z_rtti_create_complex_itab.


TYPE-POOLS: abap.


DATA:
  celltab          TYPE lvc_t_styl.  " becomes field of complex itab

DATA:
  gd_tabnam        TYPE string,
  gd_tabfield      TYPE string,
  go_table         TYPE REF TO cl_salv_table,
  go_sdescr        TYPE REF TO cl_abap_structdescr,
  go_sdescr_new    TYPE REF TO cl_abap_structdescr,
  go_tdescr        TYPE REF TO cl_abap_tabledescr,
  gdo_data         TYPE REF TO data,
  gdo_handle       TYPE REF TO data,
  gs_component     TYPE abap_compdescr,
  gs_comp          TYPE abap_componentdescr,
  gt_components    TYPE abap_component_tab.


FIELD-SYMBOLS:
  <gt_itab>     TYPE STANDARD TABLE,
  <gs_struc>    TYPE ANY.


PARAMETER:
  p_tabnam      TYPE tabname  DEFAULT 'KNB1'.

START-OF-SELECTION.

  " Describe structure
  go_sdescr ?= cl_abap_structdescr=>describe_by_name( p_tabnam ).
  gd_tabnam     = go_sdescr->get_relative_name( ).


  " Simulate dynamic addition of columns
  LOOP AT go_sdescr->components INTO gs_component.

    "   Build fieldname
    CONCATENATE gd_tabnam gs_component-name INTO gd_tabfield
                                            SEPARATED BY '-'.

    CLEAR: gs_comp.
    gs_comp-type ?= cl_abap_datadescr=>describe_by_name( gd_tabfield ).
    gs_comp-name  = gs_component-name.
    APPEND gs_comp TO gt_components.
  ENDLOOP.

  "   Create instances of dynamic structure and dynamic internal table
  go_sdescr_new  = cl_abap_structdescr=>create( gt_components ).
  go_tdescr      = cl_abap_tabledescr=>create( go_sdescr_new ).
  "   Create data refence followed by table creation
  CREATE DATA gdo_handle TYPE HANDLE go_sdescr_new.
  ASSIGN gdo_handle->* TO <gs_struc>.
*
  CREATE DATA gdo_handle TYPE HANDLE go_tdescr.  " !!!
  ASSIGN gdo_handle->* TO <gt_itab>.

  APPEND INITIAL LINE TO <gt_itab> ASSIGNING <gs_struc>.


  TRY.
      CALL METHOD cl_salv_table=>factory
        IMPORTING
          r_salv_table = go_table
        CHANGING
          t_table      = <gt_itab>.
      go_table->display( ).
    CATCH cx_salv_msg .
  ENDTRY.

END-OF-SELECTION.

Regards

Uwe

[GrahamRobbo]

Thanks Uwe.

Silly me - I assumed ANY TABLE would include STANDARD tables. I have obviously been looking at this for too long.

Cheers

Graham Robbo

[uwe_schieferstein]

Hello Graham

You would have got away with:

FIELD-SYMBOLS: <table> TYPE TABLE,  " ANY TABLE,
                           <row> TYPE ANY.

Regards

Uwe