Xml file parse event base

Question

hello all,
i am learning xml file with sap help sample. I have a FM, that change xml-file into if_ixml_parser, but when i wrote the xml " <person status="retired">Walt Whitman</person>" and debug it.
event_sub was 312, <b>event was always initial</b>.
data: event     type ref to if_ixml_event,
        event_sub type i.
let the parser know which events I am interested in
event_sub = if_ixml_event=>co_event_element_pre2 +
            if_ixml_event=>co_event_element_post.
parser->set_event_subscription( events = event_sub ).
do.
  event = parser->parse_event( ).
  if event is initial.
    exit. ' either end reached or error (check below)
  endif.
  data: str type string.
  case event->get_type( ).
    when if_ixml_event~co_event_element_pre2.
      str = event->get_name( ).
      write: '<' str '>'.
    when if_ixml_event~co_event_text_post.
      str = event->get_value( ).
      write: str.
  endcase.
enddo.
Thanks for Request.
<a href="http://help.sap.com/saphelp_nwmobile71/helpdata/de/47/b5413acdb62f70e10000000a114084/frameset.htm">sap library - Parsing an XML document event-based</a>
Best regards
Shuo

Answer 1

Hi,
     reference link:
http://help.sap.com/saphelp_nw04/helpdata/en/fd/9d7348389211d596a200a0c94260a5/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/bb/576670dca511d4990b00508b6b8b11/content.htm
Please see the PDF document which tells you how to develop with KM API's
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/aef1a890-0201-0010-6faf-8fa094808653
Regards