LINQ element is null

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Benn H.J. Molund - 07 Mar 2008 14:56 GMT

hi,

my xml file is:

<?xml version="1.0" encoding="ISO-8859-1"?>
<Message xmlns="http://www.kith.no/xmlstds/henvisning/2005-07-08"
xmlns:xsd="http://www.w3.org/2001/XMLSchema.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.kith.no/xmlstds/henvisning/2005-07-08
Henvisning-v1.0.xsd">
    <Type V="H"/>
    <MsgVersion>v1.0 2005-07-08</MsgVersion>
    <MIGversion>v1.0 2005-07-08</MIGversion>
    <GenDate V="2005-07-06T11:30:47"/>
    <MsgId>Referansenummer123456</MsgId>
    <ServReq>
        
        <ServType V="N"/>
        <IssueDate V="2002-09-14"/>
        <MsgDescr V="1" DN="Utredning"/>
        <Id>FY020725A</Id>
        <Patient>
            
            <Sex V="1"/>
            <DateOfBirth V="1940-09-16"/>
            <Name>Syk, Petter</Name>
            <OffId>16094034523</OffId>
            <TypeOffId V="FNR"/>
            
            
            <InfItem>
                <Observation>
...
..

my C# code is:

XElement hen = XElement.Load(@"Henv-eks1-v1.0.xml");
XElement test = hen.Element("Patient");
Console.WriteLine(test.value);

says that test is null, what i'm i doing wrong??

Signature

Projectleader / .NET system devloper

Reply to this Message

Martin Honnen - 07 Mar 2008 15:16 GMT

> hi,
>
[quoted text clipped - 39 lines]
>
> says that test is null, what i'm i doing wrong??

Well first of all all elements are in the default namespace
http://www.kith.no/xmlstds/henvisning/2005-07-08 so you need
XNamespace hv = "http://www.kith.no/xmlstds/henvisning/2005-07-08";
and then you need to qualify names e.g.
hv + "Patient"
that you use in your code.
Additionally the Patient element is not a child of the root element but
rather of the ServReq element so you might try e.g.
hen.Element(hv + "ServReq").Element(hv + "Patient")

Signature

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

Reply to this Message

Benn H.J. Molund - 10 Mar 2008 10:16 GMT

Thx, helpet me alot:-)

Is ther a way that i can get onlye the xml tree without using the namspace?

Once again thanks for help:-)

Signature

Projectleader / .NET system devloper

> > hi,
> >
[quoted text clipped - 49 lines]
> rather of the ServReq element so you might try e.g.
> hen.Element(hv + "ServReq").Element(hv + "Patient")

Reply to this Message

Martin Honnen - 10 Mar 2008 13:00 GMT

> Is ther a way that i can get onlye the xml tree without using the namspace?

I am not sure I understand what you want to achieve. Can you explain
"which xml tree" you are looking for?

Signature

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

Reply to this Message

Benn H.J. Molund - 10 Mar 2008 13:18 GMT

Sorry, I ment all data(Elements and atributes) in the Patient part of the xml.
I asume you must ref to each element with the namespace atribute?

Signature

Projectleader / .NET system devloper

> > Is ther a way that i can get onlye the xml tree without using the namspace?
>
> I am not sure I understand what you want to achieve. Can you explain
> "which xml tree" you are looking for?

Reply to this Message

Martin Honnen - 10 Mar 2008 13:31 GMT

> Sorry, I ment all data(Elements and atributes) in the Patient part of the xml.
> I asume you must ref to each element with the namespace atribute?

Using the XNamespace is straight forward and simple.
Ignoring namespaces is possible but not very helpful in my view. If you
really want to do that:

XElement message = XElement.Load(@"..\..\XMLFile1.xml");
XElement patient = message.Elements().Where(el =>
el.Name.LocalName == "ServReq").Elements().Where(el => el.Name.LocalName
== "Patient").First();
if (patient != null)
{
Console.WriteLine(patient);
}
else
{
Console.WriteLine("Not found.");
}

Signature

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

Reply to this Message

Benn H.J. Molund - 10 Mar 2008 14:02 GMT

aha, this was the mind opner for me :-) thx

Signature

Projectleader / .NET system devloper

> > Sorry, I ment all data(Elements and atributes) in the Patient part of the xml.
> > I asume you must ref to each element with the namespace atribute?
[quoted text clipped - 15 lines]
> Console.WriteLine("Not found.");
> }

Reply to this Message

LINQ element is null

Free Magazines