Sorry, I should have explained that “XPath” is a reserved word in XLANG 
(i.e.
inside the Orchestration).   It is a short cut to get access to XML Document
s
and Messages inside the Orchestration.

So, the exact code that works outside the Orchestration should not look the
same inside the Orchestration.

You can find some more information on using XPath inside the Orchestration
by searching the help guide for: “Using XPaths in Message Assignment”.  
The
same code can be used to do XPath querries inside an Expression Shape as wel
l.

Let me know if you have additional questions.

Stephen W. Thomas
http://www.geekswithblogs.com/sthomas


"John Smith" wrote:

> Thanks for your reaction, but this was not really helpful, I'm sorry!
>
> In your example you create an empty xmldocument. After that, you introduce
> the variable xpath, of which I don't know the type. Is it a XPathNavigator
?
> Or a XPathNodeList?
>
> Shouldn't I first create a XPathDocument?
>
> Why does it work when I read the same file from the file system, and not i
f
> I get the document through an Orchestration Expression. I noticed that the
> document sent by biztalk has a lot of formatting with it, but that doesn't
> seem to be the problem. I saved the xml document produced by biztalk to th
e
> file system, and I had no problem processing the file.
>
> This is the complete function call:
>
> public void ProcesMsg(XLANGMessage msg)
>
> {
>
> XmlDocument aXmlDoc;
>
> XmlNodeList aSalesOrders;
>
> string aTo, aSubject, aBody, aAttachment;
>
>
> aXmlDoc = (XmlDocument) msg[0].RetrieveAs(typeof(XmlDocument));
>
>
> aSalesOrders = aXmlDoc.DocumentElement.ChildNodes;
>
> for (int i=0;i<aSalesOrders.Count;i++)
>
> {
>
> aTo = aSalesOrders[i].SelectSingleNode("ShipTo/Name").InnerText;
>
> if (aTo.Length >0)
>
> {
>
> aBody = TransformXML(aSalesOrders[i],"mappingBody.xsl");
>
> aSubject = "Uw Order";
>
> aAttachment = TransformXML(aSalesOrders[i],"mappingAttachment.xsl");
>
> System.Diagnostics.EventLog.WriteEntry("Confirmation Mail",aBody);
>
>  SendSMTPMail(aTo,aSubject,aBody,aAttachm
ent);
>
> }
>
> }
>
> }
>
>
> Best regards,
> Bas Dirkse (b_dirkse@hotmail.com)
>
>
>

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