HOW TO  SET A DEAFULT  VALUE  FOR A FIELD?

hi friends
  i have doubt..how to  set a default  value for a field..say  like in  local printer field i always want  lp01 to  be displayed defaultly..when i  click  F1  in that  field i  get the parameter id ..i  know there is something  dealt with that  parameter id..how can i  set that  default value ..in the case of the default  printer value i made in  own data settings as lp01 but  how to  do it  normally  for other  field which has parameter id ??????
thanks and regards
prince

Hi Prince,
u can set the default value in abap as given below
SELECTION-SCREEN: BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
SELECTION-SCREEN SKIP 1.
PARAMETERS : S_BUKRS TYPE BSID-BUKRS OBLIGATORY DEFAULT '1000'.
PARAMETERS : S_BELNR TYPE BELNR_D OBLIGATORY DEFAULT '1600000070'.
PARAMETERS : S_GJAHR TYPE GJAHR OBLIGATORY DEFAULT '2008'.
PARAMETERS : ASON TYPE BUDAT OBLIGATORY DEFAULT SY-DATUM.
PARAMETERS : S_KUNNR TYPE KUNNR MODIF ID GP1.
PARAMETERS : S_LIFNR TYPE LIFNR MODIF ID GP2.
SELECTION-SCREEN SKIP 1.
SELECTION-SCREEN : END OF BLOCK B1.
or
u can give the default value in INITIALIZATION also.
vlue = '1000'.

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AM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

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    "myname1", "attribname1"
    "myname2", "attribname2"
    "myname3", "attribname3"
    "myname4", ""
    #my_data.ctl
    load data
    into table my_data
    fields terminated by "," optionally enclosed by '"'
    TRAILING NULLCOLS           
    my_name char(30),
    vc_attributeName "decode(:vc_attributeName,null, 'none', :vc_attributeName)"
    {code}
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    {code}
    Control File:   my_data.ctl
    Data File:      mydata.dat
      Bad File:     mydata.bad
      Discard File:  none specified
    (Allow all discards)
    Number to load: ALL
    Number to skip: 0
    Errors allowed: 50
    Bind array:     64 rows, maximum of 256000 bytes
    Continuation:    none specified
    Path used:      Conventional
    Table MY_DATA, loaded from every logical record.
    Insert option in effect for this table: INSERT
    TRAILING NULLCOLS option in effect
       Column Name                  Position   Len  Term Encl Datatype
    MY_NAME                             FIRST    30   ,  O(") CHARACTER           
    VC_ATTRIBUTENAME                     NEXT     *   ,  O(") CHARACTER           
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      0 Rows not loaded due to data errors.
      0 Rows not loaded because all WHEN clauses were failed.
      0 Rows not loaded because all fields were null.
    Space allocated for bind array:                  18560 bytes(64 rows)
    Read   buffer bytes: 1048576
    Total logical records skipped:          0
    Total logical records read:             4
    Total logical records rejected:         0
    Total logical records discarded:        0
    Run began on Mon Feb 09 18:17:35 2009
    Run ended on Mon Feb 09 18:17:36 2009
    Elapsed time was:     00:00:00.98
    CPU time was:         00:00:00.10
    {code}
    Hope this helps clearing your dobuts
    Regards                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

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