FM GUI_DOWNLOAD

Question

Hi
I am using FM 'GUI_DOWNLOAD' to download the data in Excel format. Now i am able to download the data in proper format bur unable to download the header of the columns. Can anyone have solution to this??

Answer 1

Yes, it is possible to download column headers with GUI_DOWNLOAD. To do this,
you must provide the parameter FIELDNAMES with a corresponding table:
This table must be a single-line table.
The following is a corresponding "showcase" source code:
REPORT reportname.
"    Declaration of Line Type: SPFLI                                  *
TYPES: BEGIN OF line_type,
         field1 LIKE spfli-carrid,
         field2 LIKE spfli-connid,
         field3 LIKE spfli-cityfrom,
       END OF line_type.
"    Declaration of Table Type                                        *
TYPES tab_type TYPE STANDARD TABLE OF line_type.
"    Declaration of internal Table                                    *
DATA: itab  TYPE tab_type.
"    Declaration of workarea                                          *
DATA: wa   TYPE line_type.
"    Declaration of Fieldnames                                        *
DATA: BEGIN OF colnames OCCURS 0,
        col(10) TYPE c,
      END OF colnames.
"    One Colname per line                                             *
colnames-col = 'Column1'. APPEND colnames.
colnames-col = 'Column2'. APPEND colnames.
colnames-col = 'Column3'. APPEND colnames.
START-OF-SELECTION.
   "    Get the data and fill the workarea                             *
   SELECT carrid connid cityfrom
     FROM spfli
     INTO (wa-field1, wa-field2, wa-field3).
     APPEND wa TO itab.
   ENDSELECT.
   IF sy-subrc <> 0.
     MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
     WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
   ENDIF.
   "    Now download the itab with fieldnames:                         *
   "    By using dat_mode and fieldseparator                           *
   CALL FUNCTION 'GUI_DOWNLOAD'
     EXPORTING
       filename              = 'C:\TEMP\test.txt'
       filetype              = 'ASC'
       dat_mode              = 'X'
       write_field_separator = 'X'
     TABLES
       data_tab              = itab
       fieldnames            = colnames
     EXCEPTIONS
       OTHERS                = 1.
   if sy-subrc <> 0.
     message i398(00) with 'Error: ' sy-subrc 'during gui_download!'.
   endif.