Create_dynamic_table does not work when fieldcatalog table contains LVC_S_S

Question

I'm getting short-dump when creating dynamic internal table via CALL METHOD cl_alv_table_create=>create_dynamic_table. The fieldcatalog contains a component named LVC_S_STYL which populates fine when after call function LVC_FIELDCATALOG_MERGE but when this is passed to cl_alv_table_create=>create_dynamic_table it short dumps!
Is it possible to pass the style catalog in this case, how? Below is my code.
Structure of 'ZZ_ALV_FCAT' is WERKS type werks_d, DATE type datum, CELLTAB type LVC_S_STYL.
   CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
     EXPORTING
       i_structure_name             = 'ZZ_ALV_FCAT'
      CHANGING
        ct_fieldcat                  = lt_fieldcat.
    CALL METHOD cl_alv_table_create=>create_dynamic_table
      EXPORTING
        it_fieldcatalog           = lt_fieldcat
        i_length_in_byte          = ''
      IMPORTING
        ep_table                  = dy_table
      EXCEPTIONS
        generate_subpool_dir_full = 1
        OTHERS                    = 2.
    IF sy-subrc EQ 0.
      ASSIGN dy_table->* TO <dyn_table>.
    ELSE.
      MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
                 WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
    ENDIF.
<b>I'll be generously giving away points for any help!</b>
Any idea anyone? I was thinking may be convert the HEX data to CHAR before creating the dynamic table then again convert the CHAR data back to HEX before I call SET_TABLE_FOR_FIRST_DISPLAY? In that case, how to convert Hex of a structure to CHAR and vice versa?
Message was edited by:
        Sougata Chatterjee

Answer 1

Hi
I worote this code in my system (4.6C) and I got any dump:
DATA: CT_FIELDCAT TYPE  LVC_T_FCAT.
DATA: DY_TABLE TYPE REF TO DATA.
FIELD-SYMBOLS: <TABLE> TYPE TABLE.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
  EXPORTING
*   I_BUFFER_ACTIVE              =
    I_STRUCTURE_NAME             = 'ZLVC_S_STYL'
*   I_CLIENT_NEVER_DISPLAY       = 'X'
*   I_BYPASSING_BUFFER           =
  CHANGING
    CT_FIELDCAT                  = CT_FIELDCAT
EXCEPTIONS
   INCONSISTENT_INTERFACE       = 1
   PROGRAM_ERROR                = 2
   OTHERS                       = 3
IF SY-SUBRC <> 0.
  MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
          WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD CL_ALV_TABLE_CREATE=>CREATE_DYNAMIC_TABLE
      EXPORTING
        IT_FIELDCATALOG           = CT_FIELDCAT
*       I_LENGTH_IN_BYTE          = ''
      IMPORTING
        EP_TABLE                  = DY_TABLE
      EXCEPTIONS
        GENERATE_SUBPOOL_DIR_FULL = 1
        OTHERS                    = 2.
IF SY-SUBRC = 0.
  ASSIGN DY_TABLE->* TO <TABLE>.
  IF SY-SUBRC = 0.
  ENDIF.
ENDIF.
I've included the structure LVC_S_STYL in my structure ZLVC_S_STYL and then add some fields.
But if I insert a field CELL like LVC_S_STYL, instead of to include it directly, I get the dump.
So I believe it depends on how you've defined the structure in dictionary, because in the second case it seems the METHOD can't create the subroutine to create the dynamic table.
It seems if it uses a complex structure where a field is a structure, the METHOD can't write a right defintion of an internal table based on the dictionary structure.
In my system I saw the method try to create a subroutine where the interna table is defined in this way:
DATA: STYLE TYPE ZLVC_S_STYL-STYLE. 
instead of
DATA: STYLE TYPE ZLVC_S_STYL-CELL-STYLE. 
Max