Program not working ib background

Question

Moderator message: background/foreground/GUI problems = FAQ, please search before posting.
Hi All,
I have a program which is not working in background.It actuly takes the file and using GUI_upload i upload it into ITAb and then modify the database table based on this. But when i process this in foreground it working and updating the table.But when i scedule in background the job is getting over in 1-2 sec and not updating the table.
Please help me. below is the code for your refrence:
data:begin of i_tab occurs 0,
      Bp1 like DATAbase table,
      Bp2 like  database table,
     trf1 type string,
     trf2 type string,
     status type string,
  end of i_tab.
data: BP_ver type STANDARD TABLE OF DATAbase table      with header line ,
      w_ver type  ZVERS_BUT050_CUR .
DATA: it_tab type filetable,
    gd_subrc TYPE i,
    file_name TYPE string,
    path TYPE string.
DATA : lw_file TYPE file_table.
DATA: LIN TYPE I.
*Input File
SELECTION-SCREEN begin of block blk with frame title text-100.
SELECTION-SCREEN SKIP 2.
parameters : p_file like rlgrap-filename .
SELECTION-SCREEN end of block blk.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
  CLEAR:  file_name.
  CALL METHOD cl_gui_frontend_services=>file_open_dialog
    EXPORTING
      window_title     = 'Select only Text File'
      default_filename = '*.txt'
      multiselection   = ' '
    CHANGING
      file_table       = it_tab
      rc               = gd_subrc.
  READ TABLE  it_tab INTO lw_file INDEX 1.
  file_name = lw_file.
  p_file = file_name.
START-OF-SELECTION.
*Upload the file
  CALL FUNCTION 'GUI_UPLOAD'
    EXPORTING
      FILENAME                      = FILE_NAME
     FILETYPE                      = 'ASC'
   HAS_FIELD_SEPARATOR           = 'X'
  HEADER_LENGTH                 = 0
  READ_BY_LINE                  = 'X'
  DAT_MODE                      = ' '
  CODEPAGE                      = ' '
    TABLES
      DATA_TAB                    = i_tab
EXCEPTIONS
   FILE_OPEN_ERROR               = 1
   FILE_READ_ERROR               = 2
   NO_BATCH                      = 3
   GUI_REFUSE_FILETRANSFER       = 4
   INVALID_TYPE                  = 5
   NO_AUTHORITY                  = 6
   UNKNOWN_ERROR                 = 7
   BAD_DATA_FORMAT               = 8
   HEADER_NOT_ALLOWED            = 9
   SEPARATOR_NOT_ALLOWED         = 10
   HEADER_TOO_LONG               = 11
   UNKNOWN_DP_ERROR              = 12
   ACCESS_DENIED                 = 13
   DP_OUT_OF_MEMORY              = 14
   DISK_FULL                     = 15
   DP_TIMEOUT                    = 16
   OTHERS                        = 17
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
  loop at i_tab.
    if i_tab-status = 'Yes'.
      i_tab-status = 'V'.
    else.
      i_tab-status = 'I'.
    endif.
    modify i_tab.
  endloop.
  if i_tab is not INITIAL.
    select * from DATAbase table into CORRESPONDING FIELDS OF TABLE  BP_ver FOR ALL ENTRIES IN i_tab
      where PARTNER1 = i_tab-Bp1 and PARTNER2 = i_tab-bp2  .
  endif.
*Update the table
  loop at BP_ver .
    clear i_tab.
    read TABLE i_tab  with key bp1 = BP_ver-PARTNER1 bp2 = BP_ver-PARTNER2  .
   if i_tab-bp1 = w_ver-PARTNER1 and i_tab-bp2 = w_ver-PARTNER2.
    BP_ver-PARTNER1 = i_tab-bp1 .
    BP_ver-PARTNER2 = i_tab-bp2 .
    BP_ver-Z_CURRENTLY_VALI = i_tab-status .
    modify BP_ver TRANSPORTING Z_CURRENTLY_VALI .
   endif.
  endloop.
  update DATAbase table from table bp_ver[] .
  if sy-SUBRC eq 0.
    commit work.
    message 'Table DATAbase table Updated Sucsussfully' type 'S'.
  else.
    message 'Table Not Updated !!! Check the file data or input' type 'S'.
  endif.
Edited by: Thomas Zloch on Nov 12, 2010 11:03 AM

Answer 1

Hi,
     Look at the coding in FM GUI_UPLOAD ... This does not work in background ....
Batch mode is not supported
  IF sy-batch = 'X'.
    MESSAGE ID 'FES' TYPE 'E' NUMBER '002' RAISING NO_BATCH.
  ENDIF.
Regards,
Srini.