Hi John,

You could try adding some debuc code, just to double check that you are
getting the XPath stuff right.

Try:
System.Daignostics.Debug.WriteLine (aSalesOrders[i].OuterXml);
in the loop, then run the orchestration with VisualStudi attached to the
BizTalk service. This should give you some insite as to what's going on in
the orchestration.

Regards,

Alan


"John Smith" wrote:

> Hi,
>
> I have a serious problem using xpath queries after receiving a xml documen
t
> with a .Net class. I use an Expression shape to initialize my class and us
e
> a method to send the received message to this class.
>
> Everything works fine until i want to use a XPath query to select some
> nodes. I get a null reference to a node, though I know it exists. If I use
> the same code, but then loading the xml document from the file system I ha
ve
> no problems!
>
> Does anybody has an idea?
>
> This is a part of my code:
>
> 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;
>
>
>
> Thanks,
> Bas Dirkse (b_dirkse@hotmail.com)
>
>
>
>

[ Post a follow-up to this message ]