BizTalk Pipeline IBaseMessage IPropertyContext -

when message comes biztalk pipeline , ibasemessage instance stands incoming message ? , property , , how understand this?

the 2 parts you'll interested in ibasemessage bodparty.getoriginaldatastream() , context objects. example

stream originaldatastream = pinmsg.bodypart.getoriginaldatastream(); string msgasstring; xdocument msgasxdoc; streamreader sr = new streamreader(originaldatastream) msgasstring = sr.readtoend();  originaldatastream.position = 0; // important reset before passing message on!  msgasxdoc = xdocument.load(originaldatastream); // have in xdoc originaldatastream.position = 0;  xmlreader xr = xmlreader.create(originaldatastream) originaldatastream.position = 0;  string strproperty = (string)pinmsg.context.read("propertyname", "http://propertynamespace");  string anotherproperty = "testing"; pinmsg.context.write("anotherpropertyname", "http://propertynamespace", anotherproperty)  pcontext.resourcetracker.add(xr); pcontext.resourcetracker.add(sr); 

etc.

a couple other notes:

• avoid 'using' constructs, end disposing of underlying stream , causing errors
• add disposable objects context's resource tracker, make sure call dispose() on objects when underlying stream ready disposed of.