blocks|key|1253258|text|我希望你能从这个帖子中获得一些有用的信息--+XElement+default+namespace+on+attributes+provides+unexpected+behaviour|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1253259|编辑：|1253260|另一个常见问题解答-+http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/c0648840-e389-49be-a3d2-4d5db17b8ddd|1253261|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/1231396/xelement-default-namespace-on-attributes-provides-unexpected-behaviour|1|http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/c0648840-e389-49be-a3d2-4d5db17b8ddd^0|N|1Y|0|0|0|B|2T|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

I hope you will get some useful information from this thread - <a href="https://stackoverflow.com/questions/1231396/xelement-default-namespace-on-attributes-provides-unexpected-behaviour">XElement default namespace on attributes provides unexpected behaviour</a>

EDIT:

Another FAQ at - <a href="http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/c0648840-e389-49be-a3d2-4d5db17b8ddd" rel="nofollow noreferrer">http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/c0648840-e389-49be-a3d2-4d5db17b8ddd</a>

blocks|key|1468101|text|下面是一个创建所需输出的小示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1468102|using+System;
using+System.Xml.Linq;

class+Program
{
++++static+void+Main()
++++{
++++++++XNamespace+ci+=+"http://somewhere.com";
++++++++XNamespace+ca+=+"http://somewhereelse.com";

++++++++XElement+element+=+new+XElement("root",
++++++++++++new+XAttribute(XNamespace.Xmlns+%2B+"ci",+ci),
++++++++++++new+XAttribute(XNamespace.Xmlns+%2B+"ca",+ca),
++++++++++++++++new+XElement(ci+%2B+"field1",+"test"),
++++++++++++++++new+XElement(ca+%2B+"field2",+"another+test"));
++++}
}|code-block|syntax|javascript|1468103|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is a small example that creates the output you want:

<pre><code>using System;
using System.Xml.Linq;

class Program
{
 static void Main()
 {
 XNamespace ci = "http://somewhere.com";
 XNamespace ca = "http://somewhereelse.com";

 XElement element = new XElement("root",
 new XAttribute(XNamespace.Xmlns + "ci", ci),
 new XAttribute(XNamespace.Xmlns + "ca", ca),
 new XElement(ci + "field1", "test"),
 new XElement(ca + "field2", "another test"));
 }
}
</code></pre>

blocks|key|1468133|text|XNamespace+ci+=+"http://somewhere.com";
XNamespace+ca+=+"http://somewhereelse.com";
XElement+root+=+new+XElement(aw+%2B+"root",
++++new+XAttribute(XNamespace.Xmlns+%2B+"ci",+"http://somewhere.com"),
++++new+XAttribute(XNamespace.Xmlns+%2B+"ca",+"http://somewhereelse.com"),
++++new+XElement(ci+%2B+"field1",+"test"),
++++new+XElement(ca+%2B+"field2",+"another+test")
);
Console.WriteLine(root);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1468134|这应该会输出|unstyled|1468135|<root+xmlns:ci="http://somewhere.com"+xmlns:ca="http://somewhereelse.com">
++++<ci:field1>test</ci:field1>
++++<ca:field2>another+test</ca:field2>
</root>|1468136|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>XNamespace ci = "http://somewhere.com";
XNamespace ca = "http://somewhereelse.com";
XElement root = new XElement(aw + "root",
 new XAttribute(XNamespace.Xmlns + "ci", "http://somewhere.com"),
 new XAttribute(XNamespace.Xmlns + "ca", "http://somewhereelse.com"),
 new XElement(ci + "field1", "test"),
 new XElement(ca + "field2", "another test")
);
Console.WriteLine(root);
</code></pre>

This should output

<pre><code>&lt;root xmlns:ci="http://somewhere.com" xmlns:ca="http://somewhereelse.com"&gt;
 &lt;ci:field1&gt;test&lt;/ci:field1&gt;
 &lt;ca:field2&gt;another test&lt;/ca:field2&gt;
&lt;/root&gt;
</code></pre>

blocks|key|1253408|text|对于XmlDocument，情况类似：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1253409|XmlAttribute+attribute1+=+sessionXml.CreateAttribute("s",+"Attribute1",+namespaceURI);
XmlAttribute+attribute2+=+sessionXml.CreateAttribute("s",+"Attribute2",+namespaceURI);
XmlAttribute+attribute3+=+sessionXml.CreateAttribute("s",+"Attribute3",+namespaceURI);
XmlAttribute+attribute4+=+sessionXml.CreateAttribute("s",+"Attribute4",+namespaceURI);|code-block|syntax|javascript|1253410|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For XmlDocument it's similar:

<pre><code>XmlAttribute attribute1 = sessionXml.CreateAttribute("s", "Attribute1", namespaceURI);
XmlAttribute attribute2 = sessionXml.CreateAttribute("s", "Attribute2", namespaceURI);
XmlAttribute attribute3 = sessionXml.CreateAttribute("s", "Attribute3", namespaceURI);
XmlAttribute attribute4 = sessionXml.CreateAttribute("s", "Attribute4", namespaceURI);
</code></pre>

blocks|key|1468192|text|尝试以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1468193|string+prefix+=+element.GetPrefixOfNamespace(element.Name.NamespaceName);
string+name+=+String.Format(prefix+==+null+?+"{1}"+:+"{0}:{1}",+prefix,+element.Name.LocalName);`|code-block|syntax|javascript|1468194|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this code:

<pre><code>string prefix = element.GetPrefixOfNamespace(element.Name.NamespaceName);
string name = String.Format(prefix == null ? "{1}" : "{0}:{1}", prefix, element.Name.LocalName);`
</code></pre>

This may be a beginner xml question, but how can I generate an xml document that looks like the following?

<pre><code>&lt;root xmlns:ci="http://somewhere.com" xmlns:ca="http://somewhereelse.com"&gt;
 &lt;ci:field1&gt;test&lt;/ci:field1&gt;
 &lt;ca:field2&gt;another test&lt;/ca:field2&gt;
&lt;/root&gt;
</code></pre>

If I can get this to be written, I can get the rest of my problem to work.

Ideally, I'd like to use LINQ to XML (XElement, XNamespace, etc.) with c#, but if this can be accomplished easier/better with XmlDocuments and XmlElements, I'd go with that.

Thanks!!!

How can I write xml with a namespace and prefix with XElement?

这可能是一个初学xml的问题，但是如何生成如下所示的xml文档呢？<root xmlns:ci="http://somewhere.com" xmlns:ca="http://somewhereelse.com"> <ci:field1>test</ci:field1> <ca:field2>another...

问如何编写带有名称空间和带有XElement前缀的xml？
EN

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问如何编写带有名称空间和带有XElement前缀的xml？
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