lvc_t_nkey - please help

[Former Member]

Friends,

I need help in assigning an integer value to type - lvc_t_nkey variable.

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REPORT ZTEST111.

data: x type lvc_t_nkey,

y(12). " y can be either integer or numeric

x = y.

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Error I get: the type X can't be converted to type y.

Thanks in advance

[uwe_schieferstein]

Hello Kartik

The type LVC_T_NKEY is a <b>table type</b>, thus your coding (x=y.) would mean:

Set <variable> = <table type>.

The line type of LVC_T_NKEY is LVC_S_NKEY. The same is true for almost all other LVC types, e.g.:

- fieldcatalog: LVC_<b>T</b>_FACT -> line type LVC_<b>S</b>_FCAT

LVC_T_ => table type
LVC_S_ => line type

You could write:

DATA:
  gt_x  TYPE lvc_t_nkey,
  gs_y  TYPE lcv_s_nkey.   " or: LIKE LINE OF lvc_t_nkey

  APPEND gs_y TO gt_x.

Regards

Uwe

[Former Member]

Uwe,

i have a need where after reading a internal table for a particular key e.g order number. the return from read is SY-TABIX.

I would like to use this value and expand the tree for the given node.

that is the reason i was trying to assign sy-tabix value in to lvc-t_nkey.

can I assign SY-TABIX to line type variable and append it to table type later ?

I appreciate your help.

Rgds,

Kartik

[uwe_schieferstein]

Hello Karthik

Use the following trick to map the tree nodes to the entries in you internal table:

TYPES: BEGIN OF ty_s_outtab.
  INCLUDE TYPE sflight      AS sflight.
TYPES: nkey   TYPE lvc_s_nkey.  " holds the key of the tree node
TYPES: END OF ty_s_outtab.
TYPES: ty_t_outtab   TYPE STANDARD TABLE OF ty_s_outtab
                                WITH DEFAULT KEY.

DATA:
  gt_outtab    TYPE ty_t_outtab.

The following coding has been taken from sample report <b>BCALV_TREE_DEMO</b> (routine <b>CREATE_HIERARCHY</b>) and slightly adjusted:

DATA:
  ls_outtab    TYPE ty_s_outtab.

  LOOP AT gt_outtab INTO ls_outtab.
    ld_idx = syst-tabix.

    ON CHANGE OF ls_outtab-sflight-carrid.
      PERFORM add_carrid_line USING    ls_outtab-sflight
                                       ''
                              CHANGING l_carrid_key.

      ls_outtab-nkey = l_carrid_key.
      MODIFY gt_outtab FROM ls_outtab INDEX ld_idx
        TRANSPORTING nkey.  " store the node key with the itab entry
    ENDON.


    ON CHANGE OF ls_outtab-sflight-connid.
      PERFORM add_connid_line USING    ls_outtab-sflight
                                       l_carrid_key
                              CHANGING l_connid_key.
"      Also here: store the node key with the itab entry
    ENDON.

    PERFORM add_complete_line USING  ls_outtab-sflight
                                     l_connid_key
                            CHANGING l_last_key.
"      Also here: store the node key with the itab entry
  ENDLOOP.

Please note that there is no need to add field NKEY (of gt_outtab) to the fieldcatalog.

Regards

Uwe

[Former Member]

Thank you...

[Former Member]

Hi Kartik,

Havent tried this , but check if explicit type casting is supported.

Regards,

Sunmit.