Control flush error in gui_download

Question

Hi All,
I get a control flush error while trying to use the FM GUI_DOWNLOAD
in my BSP Application.
Can anyone suggest the possible cause and solution?

Answer 1

Dear Raja,
I used the code given in one of the posts:
ITAB contains my data so..
LOOP AT ITAB INTO WA.
CONCATENATE L_STRING WA-PARTNER
WA-ADR_KIND
WA-ADDRNUMBER
CL_ABAP_CHAR_UTILITIES=>CR_LF
INTO L_STRING SEPARATED BY SPACE.
ENDLOOP.
APP_TYPE = 'APPLICATION/MSEXCEL'.
call function 'SCMS_STRING_TO_XSTRING'
exporting
text = l_string
MIMETYPE = APP_TYPE
IMPORTING
BUFFER = l_xstring
EXCEPTIONS
FAILED = 1
OTHERS = 2
response->set_header_field( name = 'content-type'
value = APP_TYPE ).
some Browsers have caching problems when loading Excel format
response->delete_header_field( name =
if_http_header_fields=>cache_control ).
response->delete_header_field( name =
if_http_header_fields=>expires ).
response->delete_header_field( name =
if_http_header_fields=>pragma ).
start Excel viewer either in the Browser or as a separate window
response->set_header_field(
name = 'content-disposition'
value = 'attachment;
filename=webforms.xls' ).
finally display Excel format in Browser
l_len = xstrlen( l_xstring ).
response->set_data( data = l_xstring
length = l_len ).
navigation->response_complete( ).
But I'm getting runtime errors in the line
response->set_header_field( name = 'content-type'
value = APP_TYPE ).
Do you have any idea about how to correct it?
Or, could you please suggest a simpler method?