CL_BSP_UTILITY DOWNLOAD with delta handling

Question

Hi Experts,
I use the method cl_bsp_utility=>download in the do_handle_event of a subcontroller.
For the main controller delta handling is swiched on. (In this download method the navigation->complete is executed)
After the do_handle_event of the subcontroller the method CL_BSP_CTRL_ADAPTER->do_request is executed. In this method some javascript coding will be append to my response data:
parent.bspDH_newDelta("864D5C4A1F20A60FE1000000AC13AA25");
parent.bspDH_newDeltaLoaded();
It cones from the following statement:
Tail part of delta handling
IF delta_handling IS NOT INITIAL.
   mdelta_handler->PAGE_END(  ).
ENDIF.
The outcome is that it's not possible to open my downloaded files. Only txt files can be opened but with the javasript code in it...
Any ideas? or is it in general not possible to use the download function together with delta handling?
Thanks, Markus
Edited by: Markus Doell on Jul 14, 2009 1:42 PM

Answer 1

Hi,
Try the below code in place of the cl_bsp_utility=>download.
DATA:  L_APP_TYPE  TYPE STRING,
         L_FILENAME  TYPE STRING,
         L_XSTRING   TYPE XSTRING,    "needed for HTTP response
         L_XLEN       TYPE I.
* Setting Content Type
  MOVE 'application/msexcel' TO L_APP_TYPE.
  MOVE 'attachment; filename=webforms.xls' TO L_FILENAME.
  CLEAR L_XSTRING.
  L_XSTRING = V_XSTRING. " Here you can directly pass your XSTRING
* Fill HTTP request
  RESPONSE->SET_HEADER_FIELD( NAME  = 'content-type'
                              VALUE = L_APP_TYPE ).
  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 ).
  RESPONSE->SET_HEADER_FIELD(
                       NAME  = 'content-disposition'
                       VALUE = L_FILENAME ).
* finally display XLS format in Browser
  L_XLEN = XSTRLEN( L_XSTRING ).
  RESPONSE->SET_DATA( DATA   = L_XSTRING
                      LENGTH = L_XLEN ).
  NAVIGATION->RESPONSE_COMPLETE( ).
I have used it one of my program and it worked.
Thanks,
Sreekanth