c# Namespace prefix question

[Markus Bauer]

Hello,

I have a problem with the namespace prefix.
I need to add nodes to a xml file that is not created by me.
It has a namespace with the prefix "NFD".

So an already existing node looks like that:

<NFD:Sonstiger_Hinweis>
<NFD:Erfassungsdatum>20070102</NFD:Erfassungsdatum>
<NFD:Hinweis>Patient leidet an Klaustrophobie</NFD:Hinweis>
</NFD:Sonstiger_Hinweis>

If I try to add a node by myself with the following c# Code excerpt:

XmlNode newHinweis =
myVSDXMLDoc.CreateNode(XmlNodeType.Element,"Sonsti ger_Hinweis", "NFD");

XmlNode newSub1 = myVSDXMLDoc.CreateNode(XmlNodeType.Element,
"Erfassungsdatum", "NFD");
newSub1.InnerText = DateTime.Now.ToString("yyyyMMdd");
newHinweis.AppendChild(newSub1);

XmlNode newSub2 = myVSDXMLDoc.CreateNode(XmlNodeType.Element, "Hinweis",
"NFD);
newSub2.InnerText = "MeinHinweis";
newHinweis.AppendChild(newSub2);

myNodes[0].AppendChild(newHinweis);
I get the following:

<Sonstiger_Hinweis xmlns="NFD">
<Erfassungsdatum>20070809</Erfassungsdatum>
<Hinweis>MeinHinweis</Hinweis>
</Sonstiger_Hinweis>

As you can see, the NFD is not used as a prefix :(
If I try it by leaving the Namespace param empty and placing it in the
node name like this:

XmlNode newHinweis =
myVSDXMLDoc.CreateNode(XmlNodeType.Element,"NFD:So nstiger_Hinweis", "");

It will look like this:

<Sonstiger_Hinweis>
<Erfassungsdatum>20070809</Erfassungsdatum>
<Hinweis>MeinHinweis</Hinweis>
</Sonstiger_Hinweis>

The NFD Prefix is missing then.

So I tried to find a solution using Google, but my limited english
speaking capabilities did not bring me too far :(

Any help is appreciated

Markus Bauer

[Martin Honnen]

Markus Bauer wrote:

I have a problem with the namespace prefix.
I need to add nodes to a xml file that is not created by me.
It has a namespace with the prefix "NFD".

So an already existing node looks like that:

<NFD:Sonstiger_Hinweis>
<NFD:Erfassungsdatum>20070102</NFD:Erfassungsdatum>
<NFD:Hinweis>Patient leidet an Klaustrophobie</NFD:Hinweis>
</NFD:Sonstiger_Hinweis>

If I try to add a node by myself with the following c# Code excerpt:

XmlNode newHinweis =
myVSDXMLDoc.CreateNode(XmlNodeType.Element,"Sonsti ger_Hinweis", "NFD");

We need to know the namespace URI the prefix NFD is bound to. Then use
that namespace URI whenever you want to create an element in the namespace
XmlElement newHinweis = myVSDXMLDoc.CreateElement(
"NFD",
"Sonstiger_Hinweis",
"namespaceURIBoundToPrefix
);
Use the same approach (of passing in the namespace URI) when you create
the other elements in that namespace.

--

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

[Markus Bauer]

Martin Honnen schrieb:

Markus Bauer wrote:

>I have a problem with the namespace prefix.
I need to add nodes to a xml file that is not created by me.
It has a namespace with the prefix "NFD".

So an already existing node looks like that:

<NFD:Sonstiger_Hinweis>
<NFD:Erfassungsdatum>20070102</NFD:Erfassungsdatum>
<NFD:Hinweis>Patient leidet an Klaustrophobie</NFD:Hinweis>
</NFD:Sonstiger_Hinweis>

If I try to add a node by myself with the following c# Code excerpt:

XmlNode newHinweis =
myVSDXMLDoc.CreateNode(XmlNodeType.Element,"Sonst iger_Hinweis", "NFD");

We need to know the namespace URI the prefix NFD is bound to. Then use
that namespace URI whenever you want to create an element in the namespace
XmlElement newHinweis = myVSDXMLDoc.CreateElement(
"NFD",
"Sonstiger_Hinweis",
"namespaceURIBoundToPrefix
);
Use the same approach (of passing in the namespace URI) when you create
the other elements in that namespace.

Martin, thank you for the quick response

In the top of the xml file, the URI looks like this:
.... xmlns:NFD="http://ws.gematik.de/schema/fa/nfds/v1/NotfalldatenXML"

So I changed the code this way:

XmlElement newHinweis = myVSDXMLDoc.CreateElement(
"NFD",
"Sonstiger_Hinweis",
"http://ws.gematik.de/schema/fa/nfds/v1/NotfalldatenXML");
XmlElement newSub1 = myVSDXMLDoc.CreateElement(
"NFD",
"Erfassungsdatum",
"http://ws.gematik.de/schema/fa/nfds/v1/NotfalldatenXML");
newSub1.InnerText = DateTime.Now.ToString("yyyyMMdd");
newHinweis.AppendChild(newSub1);
XmlElement newSub2 = myVSDXMLDoc.CreateElement(
"NFD",
"Hinweis", "http://ws.gematik.de/schema/fa/nfds/v1/NotfalldatenXML");
newSub2.InnerText = "MeinHinweis";
newHinweis.AppendChild(newSub2);
myNodes[0].AppendChild(newHinweis);

The result still looks this way:

<Sonstiger_Hinweis xmlns="NFD">
<Erfassungsdatum>20070809</Erfassungsdatum>
<Hinweis>MeinHinweis</Hinweis>
</Sonstiger_Hinweis>

[Markus Bauer]

Markus Bauer schrieb:

I will do some more testing tomorrow, right now my head feels like
exploding from all those xml problems.
Thank you very much for your support I will come back when I found more
information.

Waiting till today was the best I could do.
I found a bug in my code so that the xml file was not written to disk.
So i was working with an old file and I could never see the changes.

Stoopid me :(

Now it works like a charm!

Thanks again Martin for the good support. Brilliant!

Markus