Query regarding FM: K_Hierarchy_Display(used in CK13 trsnction)

Hi All,
My reqiurement is to display the BOM details for multiple materials.
For that I am using the function module 'K_HIERARCHY_DISPLAY'.
I am passing the table(I_MAT) having the data to be displayed , the program name and the fieldcat table, which are the mandatory parameters.(Please refer the FM below).
The output which I get is just the hierarchical structure without any header/itemdata(Its only the lines).
Anyone knows which other parameters should be passed and if yes how?
Know any other FM for displaying muliple materials with their muliple levels.
CALL FUNCTION 'K_HIERARCHY_DISPLAY'
    EXPORTING
      i_tabname                          = 'I_MAT'
      i_callback_prg                     = sy-repid
i_ucomm_form                      = ' '
i_top_of_page_form               = ' '
i_display_form                      = ' '
i_node_insert_form               = ' '
i_node_move_form                = ' '
i_status_form                       = ' '
i_f1_help_form                      = ' '
i_start_column                      = 5
i_start_row                           = 0
i_end_column                       = 75
i_end_row                            = 20
   i_tabulator                             = 0
   i_length_opti                          = 'X'
i_compressed                       = ' '
   i_header                                = 'X'
I_TITLE                                =
T_FIELDCAT_VIEWS            =
T_FIELDCAT_VIEWS2          =
I_VARIANT                           =
    TABLES
      i_table                                = i_mat
      i_field_cat                           = t_fieldcat[]
T_EXPAND                           =
T_VIEW_NAMES                  =
T_VIEW_TABULATORS         =
T_FIELDGROUPS                 =
EXCEPTIONS
TOO_MANY_VIEWS              = 1
KEY_TOO_LONG                   = 2
NO_LEVEL_DEFINED            = 3
WRONG_TREE_STRUCTURE               = 4
WRONG_NUMBER_OF_ALTERNATIVES       = 5
OTHERS                             = 6
Thanks in advance,
Neethu Mohan

Hi neethu,
Instead of using the FM, U can use the class CL_STRUCTURE_EXPLOSION_TREE. It directly displays the BOM tree.
Get the KEKO key.
SELECT BZOBJ KALNR KALKA KADKY TVERS BWVAR KKZMA
UP TO 1 ROWS
FROM   KEKO
INTO   L_KEKOKEY
WHERE KADKY   = U_KADKY
AND    MATNR   = U_MATNR
AND    WERKS   = U_WERKS
AND    ALDAT   = U_ALDAT
AND    KLVAR   = U_KLVAR
AND    TVERS   = U_TVERS
AND    FEH_STA = U_FESTA.
ENDSELECT.
IF SY-SUBRC NE 0.
    MESSAGE S244(25).
    LEAVE LIST-PROCESSING.
ENDIF.
Create the BOM Tree - ( WITH CONTAINER )
CREATE OBJECT C_TREE
    EXPORTING
       IS_KEKOKEY       = L_KEKOKEY
       IX_EXPLODE_RAW   = SPACE
       IX_EXPLODE_BPO   = TRUE
       IX_EXPLODE_KF    = TRUE
       I_VIEW           = U_SICHT       (type CK_SICHT)
       I_PARENT         = U_CNTNR   ( Container where u want to display the tree)
       I_NO_TOOLBAR     = SPACE
       I_NO_HTML_HEADER = TRUE
       I_OBJW           = L_OBJ_CUR
       I_ONLY_M         = TRUE
       I_ALLOW_REP_CALLS = TRUE
    EXCEPTIONS
      KEKO_NOT_FOUND = 1
      others         = 2.
IF SY-SUBRC NE 0.
    MESSAGE I809(K/).
    LEAVE PROGRAM.
ENDIF.

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However in any case you have a much bigger problem here. You're autoboxing your local 'int' variable to a possibly brand-new Integer object every call, so there may be no synchronization at all.
You need:
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Gulshan wrote:
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Query regarding FM: K_Hierarchy_Display(used in CK13 trsnction)

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