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Adding namespace prefix to Root node


I want to add a namespace prefix to the root node of an object I am
serializing to XML.

I have been reading though this article:

I get namespace prefixes in the document, but not on the root node.
Specifically, the serializer does not work as described in the last

(from http://msdn2.microsoft.com/en-gb/lib...attribute.aspx)

" For example, in the following XML document, only the prefix pair
"cal" is captured, but not the "x" prefix. To get that data, add a
member with the XmlNamespaceDec larationsAttrib ute to the class that
represents the root element."

If you look through the sample, they already use the
XmlNamespaceDec larationsAttrib ute and there is no way to associate the
instance of the XmlNamespaceDec larationsAttrib ute with the root node.

Is this a bug or a feature?

Thanks -Scott

Feb 28 '07 #1
2 21537
Ok..figured it out...you have to load the resulting document into an
XmlDocument type, then use the DocumentElement .Prefix property to set
the prefix of the root node...works perfectly. It's unfortunate to
have to do that since that is a common scenario.

Feb 28 '07 #2
sc******@gmail. com wrote:
I want to add a namespace prefix to the root node of an object I am
serializing to XML.
Here is an example doing that:

XmlSerializerNa mespaces namespaces = new XmlSerializerNa mespaces();
namespaces.Add( "prefix", "http://example.com/2007/ns1");
XmlSerializer serializer = new XmlSerializer(t ypeof(Example)) ;

Example example = new Example();
example.Name = "Kibo";
example.Power = 42;
serializer.Seri alize(Console.O ut, example, namespaces);
Console.WriteLi ne();

[XmlRoot(Namespa ce = "http://example.com/2007/ns1")]
public class Example {
public Example () {}
public string Name;
public int Power;
The output is:

<prefix:Examp le xmlns:prefix="h ttp://example.com/2007/ns1">
<prefix:Name>Ki bo</prefix:Name>
<prefix:Power>4 2</prefix:Power>
Is that what you want to achieve? Or do you want the namespace only on
the root element? Then you need to use e.g.

[XmlRoot(Namespa ce = "http://example.com/2007/ns1")]
public class Example {
public Example () {}
[XmlElement(Name space = "")]
public string Name;
[XmlElement(Name space = "")]
public int Power;

Martin Honnen --- MVP XML
Mar 1 '07 #3

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