How to parse xmlDocument with XPath

[John Barring]

Hi All,

I am new to XPath stuff. I want parse XMLDocument with XPath and find
out subset of information. If you look at following xml, for i.e how
can i retrieve subset information such as
'EnrollmentState','SCGProductCollection' or 'EnrollmentEntities'. I
have no idea how to parse following XML

<SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<a1:EnrollmentState id="ref-1"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3D09fbcba969895295">
<currentEnrollmentState
id="ref-3">OrderComplete</currentEnrollmentState>
<sessionId id="ref-4">3lxquwanl1mitt453lzayx45</sessionId>
<productsAvailable href="#ref-5"/>
<databaseId>1460</databaseId>
<referrerId>0</referrerId>
<termsAndConditions id="ref-6">
</termsAndConditions>
<enrollmentException xsi:null="1"/>
<enrollmentEntity href="#ref-7"/>
</a1:EnrollmentState>
<a1:SCGProductCollection id="ref-5"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3D09fbcba969895295">
<productList href="#ref-8"/>
</a1:SCGProductCollection>
<a1:EnrollmentEntities id="ref-7"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3D09fbcba969895295">
<lastOperationReason id="ref-10">Unknown Enrollment
Reason</lastOperationReason>
<lastOperationStatus id="ref-11">SUCCESS</lastOperationStatus>
<isCallingAsNewService>false</isCallingAsNewService>
<customer href="#ref-12"/>
<campaign xsi:null="1"/>
<appVersion href="#ref-6"/>
<applicationUser xsi:null="1"/>
</a1:EnrollmentEntities>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

[name]

"Blue States" Overload.

"Your" Baseball ticket is valid, IF it
contains all the below in BLUE.

You are an XML Dreamer of the PAST.

==============

Go parse with Xpath using people's data.

without soap or ms in it.

An find out, guy.

I am new to XPath stuff. I want parse XMLDocument with XPath and find
out subset of information. If you look at following xml, for i.e how
can i retrieve subset information such as
'EnrollmentState','SCGProductCollection' or 'EnrollmentEntities'. I
have no idea how to parse following XML

<SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<a1:EnrollmentState id="ref-1"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/
ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3
D09fbcba969895295"> <currentEnrollmentState
id="ref-3">OrderComplete</currentEnrollmentState>
<sessionId id="ref-4">3lxquwanl1mitt453lzayx45</sessionId>
<productsAvailable href="#ref-5"/>
<databaseId>1460</databaseId>
<referrerId>0</referrerId>
<termsAndConditions id="ref-6">
</termsAndConditions>
<enrollmentException xsi:null="1"/>
<enrollmentEntity href="#ref-7"/>
</a1:EnrollmentState>
<a1:SCGProductCollection id="ref-5"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/
ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3
D09fbcba969895295"> <productList href="#ref-8"/>
</a1:SCGProductCollection>
<a1:EnrollmentEntities id="ref-7"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/
ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3
D09fbcba969895295"> <lastOperationReason id="ref-10">Unknown Enrollment
Reason</lastOperationReason>
<lastOperationStatus id="ref-11">SUCCESS</lastOperationStatus>
<isCallingAsNewService>false</isCallingAsNewService>
<customer href="#ref-12"/>
<campaign xsi:null="1"/>
<appVersion href="#ref-6"/>
<applicationUser xsi:null="1"/>
</a1:EnrollmentEntities>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

[Martin Honnen]

John Barring wrote:

I am new to XPath stuff. I want parse XMLDocument with XPath and find
out subset of information. If you look at following xml, for i.e how
can i retrieve subset information such as
'EnrollmentState','SCGProductCollection' or 'EnrollmentEntities'. I
have no idea how to parse following XML

<SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<a1:EnrollmentState id="ref-1"
xmlns:a1="http://schemas.microsoft.com/clr/nsassem/ABSU.SCG.BusinessObjects/ABSU.SCG%2C%20Version%3D1.1.0.0%2C%20Culture%3Dneu tral%2C%20PublicKeyToken%3D09fbcba969895295">
<currentEnrollmentState
id="ref-3">OrderComplete</currentEnrollmentState>

You need to use an XPath expression like
/SOAP-ENV:Envelope/SOAP-ENV:Body/a1:EnrollmentState
where you need to make sure that the prefixes used (e.g. a1) are bound
to the correct namespace URIs (e.g.
http://schemas.microsoft.com/clr/nsa...fbcba969895295)

If you are using System.Xml.XmlDocument and other nodes then you have
the methods SelectSingleNode and SelectNodes to select nodes with XPath
expressions
<http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemXmlXmlNodeClassSelectNodesTopic2.asp>

--

Martin Honnen
http://JavaScript.FAQTs.com/