Changing Node Values

Mike McCarthy

I have the following XML..

<?xml version="1.0" encoding="UTF-8"?>

<EMS>

<Scene>

<Number_of_Patients>1212</Number_of_Patients>

<MCI code_description_type="description">

<Code>Stri</Code>

</MCI>

<Location_Type code_description_type="description">

<Code>Stri</Code>

</Location_Type>

<Service_Type code_description_type="description">

<Code>Stri</Code>

</Service_Type>

</Scene>

</EMS>
using the following Xpath expression ...
//*[@code_description_type='description']//Code

How can I iterate through using C# and change "Stri" to "ABC" ?

Nov 11 '05 #1

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Oleg Tkachenko

Mike McCarthy wrote:

How can I iterate through using C# and change "Stri" to "ABC" ?

XmlDocument doc = new XmlDocument();
//Load XML
doc.LoadXml(xml);
XmlNodeList list =
doc.SelectNodes("//*[@code_description_type='description']//Code[.='Stri']");
foreach (XmlNode node in list)
node.FirstChild.Value = "ABC";

--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #2

Mike McCarthy

When I run this I get an exception "Data at the root level is invalid".
Any suggestions?
"Oleg Tkachenko" <oleg@NO_SPAM_PLEASEtkachenko.com> wrote in message
news:eq**************@TK2MSFTNGP11.phx.gbl...

Mike McCarthy wrote:
How can I iterate through using C# and change "Stri" to "ABC" ?
XmlDocument doc = new XmlDocument();
//Load XML
doc.LoadXml(xml);
XmlNodeList list =

doc.SelectNodes("//*[@code_description_type='description']//Code[.='Stri']")
; foreach (XmlNode node in list)
node.FirstChild.Value = "ABC";

--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #3

Oleg Tkachenko

Mike McCarthy wrote:

When I run this I get an exception "Data at the root level is invalid".
Any suggestions?

Most likely you are trying to load XML by URL using LoadXML method. My
mistake, I just tested it loading your XML as string. Use ordinar Load
method instead.
--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #4

Mike McCarthy

Thanks the code runs.

I noticed though that my file has not been changed.

Should I be using XmlWriter ?

"Oleg Tkachenko" <oleg@NO_SPAM_PLEASEtkachenko.com> wrote in message
news:OH**************@TK2MSFTNGP10.phx.gbl...

Mike McCarthy wrote:
When I run this I get an exception "Data at the root level is invalid".
Any suggestions?

Most likely you are trying to load XML by URL using LoadXML method. My
mistake, I just tested it loading your XML as string. Use ordinar Load
method instead.
--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #5

Oleg Tkachenko

Mike McCarthy wrote:

I noticed though that my file has not been changed.

Sure, you have to save modified document using Save method, e.g.
doc.Save("foo.xml");
--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #6

Mike McCarthy

Thank you very much.

"Oleg Tkachenko" <oleg@NO_SPAM_PLEASEtkachenko.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

Mike McCarthy wrote:
I noticed though that my file has not been changed.

Sure, you have to save modified document using Save method, e.g.
doc.Save("foo.xml");
--
Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

Nov 11 '05 #7

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