How calc bin size of tab???

Question

I have a data type xstring with binary code and I have to download a file to local in binary mode.
I use:
  DATA: BEGIN OF li_tab OCCURS 0,
         line TYPE xstring,
        END OF li_tab.
          data: tab_bin type xstring.    "Binary data
  DATA: ld_bin_filesize TYPE i.
  MOVE tab_bin TO li_tab-line.
  APPEND li_tab.
En primer lugar si recupera el directorio de local
donde se almacenará el fichero
        p_filename = 'C:windows     emp ile.pdf'.
  CALL FUNCTION 'GUI_DOWNLOAD'
    EXPORTING
   bin_filesize                    = ld_bin_filesize
      filename                        = p_filename
   filetype                        = 'BIN'
IMPORTING
  FILELENGTH                      =
    TABLES
      data_tab                        = li_tab.
But the file not open in my computer because are corrupted.
Can We help me??
thanks

Answer 1

This example will help you.
Binary download table
DATA: BEGIN OF line_bin,
         data(1024) TYPE X,
      END OF line_bin.
DATA: data_tab_bin LIKE STANDARD TABLE OF line_bin.
  CALL FUNCTION 'GUI_DOWNLOAD'
    EXPORTING
      FILENAME                         = fullpath
       FILETYPE                         = 'BIN'
    IMPORTING
      FILELENGTH                       = length
    TABLES
      DATA_TAB                         = data_tab_bin
   EXCEPTIONS
     FILE_WRITE_ERROR                = 1
     NO_BATCH                         = 2
     GUI_REFUSE_FILETRANSFER         = 3
     INVALID_TYPE                     = 4
     NO_AUTHORITY                     = 5
     UNKNOWN_ERROR                   = 6
     HEADER_NOT_ALLOWED              = 7
     SEPARATOR_NOT_ALLOWED           = 8
     FILESIZE_NOT_ALLOWED            = 9
     HEADER_TOO_LONG                 = 10
     DP_ERROR_CREATE                 = 11
     DP_ERROR_SEND                   = 12
     DP_ERROR_WRITE                  = 13
     UNKNOWN_DP_ERROR                = 14
     ACCESS_DENIED                   = 15
     DP_OUT_OF_MEMORY                = 16
     DISK_FULL                        = 17
     DP_TIMEOUT                       = 18
     FILE_NOT_FOUND                  = 19
     DATAPROVIDER_EXCEPTION          = 20
     CONTROL_FLUSH_ERROR             = 21
     OTHERS                           = 22.