I have an incoming message from a web service of type xml.xmldocument.
I receive the message alright, then I have an assignment shape with the
following.

msgOrderDocument = msgIbisOrderResponse.GetOrderByTrackingNumberResult;


msgOrderDocument type is a schema.
I do this because I have to use the incoming message in a map, and there is
no way of using xml.xmldocument in a map.

How can I get the xmldocument and use it in a map?

The error I get is...

Object reference not set to an instance of an object.

Exception type: NullReferenceException
Source: ClientInterface
Target Site: Microsoft.XLANGs.Core.StopConditions
segment1(Microsoft.XLANGs.Core.StopConditions)


Thanks

Mangi.

[ Post a follow-up to this message ]

Are you creating a new instance of your schema before this step?
If not, you need to do something like this first:

// Create a new Xml Document
xDoc = new System.Xml.XmlDocument();

// Load a blank schema into your Document
// This line might not be needed, I think I have got it to work without it
xDoc.LoadXml(“<root>…blank schema here”);

// Set that Xml document to your message
msgOrderDocument = xDoc;

// Your line of code here

The help guide talks about a few different ways to create an new instance of
a schema.

On a side note, I think it is possible to map a message that is an
XmlDocument to another message that is XmlDocument.  Both the inbound and
outbound have to be defined as messages so I do not think it would solve thi
s
problem.  To do this mapping, just look in the help guide for “Assigning t
o
Transforms Dynamically”.  The code looks something like this:

Inside an Expressions Shape (not Message Assignment even though you use a
Construct)

construct outXmlMessage
{
transform (outMmlMessage) = Project.Mapname(inXmlMessage);
}

This can be risky though, I have seen my messages just pass right through
without being mapped and gives no error.  I think it was because the message
types didn’t match what the maps were expecting… i.e. user error.

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


"Mangi" wrote:

> I have an incoming message from a web service of type xml.xmldocument.
> I receive the message alright, then I have an assignment shape with the
> following.
>
> msgOrderDocument = msgIbisOrderResponse.GetOrderByTrackingNumberResult;
>
>
> msgOrderDocument type is a schema.
> I do this because I have to use the incoming message in a map, and there i
s
> no way of using xml.xmldocument in a map.
>
> How can I get the xmldocument and use it in a map?
>
> The error I get is...
>
> Object reference not set to an instance of an object.
>
> Exception type: NullReferenceException
> Source: ClientInterface
> Target Site: Microsoft.XLANGs.Core.StopConditions
> segment1(Microsoft.XLANGs.Core.StopConditions)
>
>
> Thanks
>
> Mangi.
>
>

[ Post a follow-up to this message ]

Thanks for that,
Actually the error occurs when i try to use the message in a map.
after creating the message in the assign shape, i wrote it to file and it
writes out ok as a valid xml document.

This is even more puzzling, if i can write out the message to file using a
send shape, why can't i use the message in a map? The map is the very next
step after the send shape.


"Stephen W. Thomas" wrote:
[vbcol=seagreen]
> Are you creating a new instance of your schema before this step?
> If not, you need to do something like this first:
>
> // Create a new Xml Document
> xDoc = new System.Xml.XmlDocument();
>
> // Load a blank schema into your Document
> // This line might not be needed, I think I have got it to work without it
> xDoc.LoadXml(“<root>…blank schema here”);
>
> // Set that Xml document to your message
> msgOrderDocument = xDoc;
>
> // Your line of code here
>
> The help guide talks about a few different ways to create an new instance 
of
> a schema.
>
> On a side note, I think it is possible to map a message that is an
> XmlDocument to another message that is XmlDocument.  Both the inbound and
> outbound have to be defined as messages so I do not think it would solve t
his
> problem.  To do this mapping, just look in the help guide for “Assigning
 to
> Transforms Dynamically”.  The code looks something like this:
>
> Inside an Expressions Shape (not Message Assignment even though you use a
> Construct)
>
> construct outXmlMessage
> {
>        transform (outMmlMessage) = Project.Mapname(inXmlMessage);
> }
>
> This can be risky though, I have seen my messages just pass right through
> without being mapped and gives no error.  I think it was because the messa
ge
> types didn’t match what the maps were expecting… i.e. user error.
>
> Stephen W. Thomas
> http://www.geekswithblogs.net/sthomas
>
>
> "Mangi" wrote:
> 

[ Post a follow-up to this message ]

Thanks for that,
Actually the error occurs when i try to use the message in a map.
after creating the message in the assign shape, i wrote it to file and it
writes out ok as a valid xml document.

This is even more puzzling, if i can write out the message to file using a
send shape, why can't i use the message in a map? The map is the very next
step after the send shape.


"Stephen W. Thomas" wrote:
[vbcol=seagreen]
> Are you creating a new instance of your schema before this step?
> If not, you need to do something like this first:
>
> // Create a new Xml Document
> xDoc = new System.Xml.XmlDocument();
>
> // Load a blank schema into your Document
> // This line might not be needed, I think I have got it to work without it
> xDoc.LoadXml(“<root>…blank schema here”);
>
> // Set that Xml document to your message
> msgOrderDocument = xDoc;
>
> // Your line of code here
>
> The help guide talks about a few different ways to create an new instance 
of
> a schema.
>
> On a side note, I think it is possible to map a message that is an
> XmlDocument to another message that is XmlDocument.  Both the inbound and
> outbound have to be defined as messages so I do not think it would solve t
his
> problem.  To do this mapping, just look in the help guide for “Assigning
 to
> Transforms Dynamically”.  The code looks something like this:
>
> Inside an Expressions Shape (not Message Assignment even though you use a
> Construct)
>
> construct outXmlMessage
> {
>        transform (outMmlMessage) = Project.Mapname(inXmlMessage);
> }
>
> This can be risky though, I have seen my messages just pass right through
> without being mapped and gives no error.  I think it was because the messa
ge
> types didn’t match what the maps were expecting… i.e. user error.
>
> Stephen W. Thomas
> http://www.geekswithblogs.net/sthomas
>
>
> "Mangi" wrote:
> 

[ Post a follow-up to this message ]

Interesting.  I got an error kind of like that that other day when I was
trying to pass back two XML Documents for a VB method.  The data wrote out
find but wouldn’t send.  I found it was failing on the Send Shape as well.

I solved it by making the whole call including the send in an Atomic Scope
shape, even though it did not need to be.

A quick test would be to set the Orchestration as Atomic and see what happen
s.

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


"Mangi" wrote:
[vbcol=seagreen]
> Thanks for that,
> Actually the error occurs when i try to use the message in a map.
> after creating the message in the assign shape, i wrote it to file and it
> writes out ok as a valid xml document.
>
> This is even more puzzling, if i can write out the message to file using a
> send shape, why can't i use the message in a map? The map is the very next
> step after the send shape.
>
>
> "Stephen W. Thomas" wrote:
> 

[ Post a follow-up to this message ]

100% correct.
I put it into an atomic scope and it works like a charm.

Thank you.

Mangi.

"Stephen W. Thomas" wrote:
[vbcol=seagreen]
> Interesting.  I got an error kind of like that that other day when I was
> trying to pass back two XML Documents for a VB method.  The data wrote out
> find but wouldn’t send.  I found it was failing on the Send Shape as wel
l.
>
> I solved it by making the whole call including the send in an Atomic Scope
> shape, even though it did not need to be.
>
> A quick test would be to set the Orchestration as Atomic and see what happ
ens.
>
> Stephen W. Thomas
> http://www.geekswithblogs.net/sthomas
>
>
> "Mangi" wrote:
> 

[ Post a follow-up to this message ]