blocks|key|1678163|text|尝试将名称空间属性添加到根元素：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1678164|++++++++XmlDocument+doc+=+new+XmlDocument();

++++++++XmlElement+root+=+doc.CreateElement("JOBS",+"http://www.example.com");
++++++++root.SetAttribute("xmlns:JOB",+"http://www.example.com");+

++++++++doc.AppendChild(root);

++++++++XmlElement+job+=+doc.CreateElement("JOB",+"http://www.example.com");
++++++++root.AppendChild(job);

++++++++XmlElement+docInputs+=+doc.CreateElement("JOB",+"DOCINPUTS",+"http://www.example.com");
++++++++job.AppendChild(docInputs);

++++++++XmlElement+docInput+=+doc.CreateElement("JOB",+"DOCINPUT",+"http://www.example.com");
++++++++docInputs.AppendChild(docInput);

++++++++XmlElement+docOutput+=+doc.CreateElement("JOB",+"DOCOUTPUT",+"http://www.example.com");
++++++++root.AppendChild(docOutput);++++|code-block|syntax|javascript|1678165|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 to add the namespace attribute to the root element:

<pre><code> XmlDocument doc = new XmlDocument();

 XmlElement root = doc.CreateElement("JOBS", "http://www.example.com");
 root.SetAttribute("xmlns:JOB", "http://www.example.com"); 

 doc.AppendChild(root);

 XmlElement job = doc.CreateElement("JOB", "http://www.example.com");
 root.AppendChild(job);

 XmlElement docInputs = doc.CreateElement("JOB", "DOCINPUTS", "http://www.example.com");
 job.AppendChild(docInputs);

 XmlElement docInput = doc.CreateElement("JOB", "DOCINPUT", "http://www.example.com");
 docInputs.AppendChild(docInput);

 XmlElement docOutput = doc.CreateElement("JOB", "DOCOUTPUT", "http://www.example.com");
 root.AppendChild(docOutput); 
</code></pre>

blocks|key|1678240|text|可以在元素上显式创建命名空间前缀属性。然后，当您添加使用相同名称空间和相同前缀创建的后代元素时，XmlDocument将计算出它不需要向元素添加名称空间声明。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1678241|运行此示例以查看其工作原理：|1678242|++++using+System;
++++using+System.Xml;

++++static+void+Main(string[]+args)
++++{
++++++++XmlDocument+d+=+new+XmlDocument();
++++++++XmlElement+e+=+d.CreateElement("elm");

++++++++d.AppendChild(e);

++++++++d.DocumentElement.SetAttribute("xmlns:a",+"my_namespace");

++++++++e+=+d.CreateElement("a",+"bar",+"my_namespace");
++++++++d.DocumentElement.AppendChild(e);
++++++++e+=+d.CreateElement("a",+"baz",+"other_namespace");
++++++++d.DocumentElement.AppendChild(e);
++++++++e+=+d.CreateElement("b",+"bar",+"my_namespace");
++++++++d.DocumentElement.AppendChild(e);

++++++++d.Save(Console.Out);

++++++++Console.ReadLine();
++++}|code-block|syntax|javascript|1678243|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can explicitly create namespace prefix attributes on an element. Then when you add descendant elements that are created with both the same namespace and the same prefix, the XmlDocument will work out that it doesn't need to add a namespace declaration to the element. 

Run this example to see how this works:

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

 static void Main(string[] args)
 {
 XmlDocument d = new XmlDocument();
 XmlElement e = d.CreateElement("elm");

 d.AppendChild(e);

 d.DocumentElement.SetAttribute("xmlns:a", "my_namespace");

 e = d.CreateElement("a", "bar", "my_namespace");
 d.DocumentElement.AppendChild(e);
 e = d.CreateElement("a", "baz", "other_namespace");
 d.DocumentElement.AppendChild(e);
 e = d.CreateElement("b", "bar", "my_namespace");
 d.DocumentElement.AppendChild(e);

 d.Save(Console.Out);

 Console.ReadLine();
 }
</code></pre>

blocks|key|1678296|text|下面将生成您在上面请求的所需输出：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1678297|XmlDocument+doc+=+new+XmlDocument();

XmlElement+root+=+doc.CreateElement("JOBS");
root.SetAttribute("xmlns:JOBS",+"http://www.example.com");
root.SetAttribute("xmlns:JOB",+"http://www.example.com");
doc.AppendChild(root);

XmlElement+job+=+doc.CreateElement("JOB");

XmlElement+docInputs++++=+doc.CreateElement("JOB",+"DOCINPUTS",+"http://www.example.com");
XmlElement+docInput+++++=+doc.CreateElement("JOB",+"DOCINPUT",+"http://www.example.com");
docInputs.AppendChild(docInput);
job.AppendChild(docInputs);

XmlElement+docOutputs+++=+doc.CreateElement("JOB",+"DOCOUTPUTS",+"http://www.example.com");
XmlElement+docOutput++++=+doc.CreateElement("JOB",+"DOCOUTPUT",+"http://www.example.com");
docOutputs.AppendChild(docOutput);
job.AppendChild(docOutputs);

doc.DocumentElement.AppendChild(job);|code-block|syntax|javascript|1678298|然而，奇怪的是，在您的示例/期望输出中，针对两个不同的前缀使用了相同的XML名称空间。希望这能有所帮助。|1678299|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The following will generate the desired output that you requested above:

<pre><code>XmlDocument doc = new XmlDocument();

XmlElement root = doc.CreateElement("JOBS");
root.SetAttribute("xmlns:JOBS", "http://www.example.com");
root.SetAttribute("xmlns:JOB", "http://www.example.com");
doc.AppendChild(root);

XmlElement job = doc.CreateElement("JOB");

XmlElement docInputs = doc.CreateElement("JOB", "DOCINPUTS", "http://www.example.com");
XmlElement docInput = doc.CreateElement("JOB", "DOCINPUT", "http://www.example.com");
docInputs.AppendChild(docInput);
job.AppendChild(docInputs);

XmlElement docOutputs = doc.CreateElement("JOB", "DOCOUTPUTS", "http://www.example.com");
XmlElement docOutput = doc.CreateElement("JOB", "DOCOUTPUT", "http://www.example.com");
docOutputs.AppendChild(docOutput);
job.AppendChild(docOutputs);

doc.DocumentElement.AppendChild(job);
</code></pre>

However, it seems odd that in your example/desired output that the same XML namespace was used against two different prefixes. Hope this helps.

I need to create an <code>XmlDocument</code> with a root element containing multiple namespaces. Am using C# 2.0 or 3.0

Here is my code:

<pre><code>XmlDocument doc = new XmlDocument();
XmlElement root = doc.CreateElement("JOBS", "http://www.example.com");
doc.AppendChild(root);

XmlElement job = doc.CreateElement("JOB", "http://www.example.com");
root.AppendChild(job); 

XmlElement docInputs = doc.CreateElement("JOB", "DOCINPUTS", "http://www.example.com");
job.AppendChild(docInputs); 

XmlElement docInput = doc.CreateElement("JOB", "DOCINPUT", "http://www.example.com");
docInputs.AppendChild(docInput); 

XmlElement docOutput = doc.CreateElement("JOB", "DOCOUTPUT", "http://www.example.com");
docOutputs.AppendChild(docOutput); 
</code></pre>

The current output:

<pre><code>&lt;JOBS xmlns="http://www.example.com"&gt;
 &lt;JOB&gt;
 &lt;JOB:DOCINPUTS xmlns:JOB="http://www.example.com"&gt;
 &lt;JOB:DOCINPUT /&gt;
 &lt;/JOB:DOCINPUTS&gt;
 &lt;JOB:DOCOUTPUTS xmlns:JOB="http://www.example.com"&gt;
 &lt;JOB:DOCOUTPUT /&gt;
 &lt;/JOB:DOCOUTPUTS&gt;
 &lt;/JOB&gt;
&lt;/JOBS&gt;
</code></pre>

However, my desired output is:

<pre><code>&lt;JOBS xmlns:JOBS="http://www.example.com" xmlns:JOB="http://www.example.com"&gt;
 &lt;JOB&gt;
 &lt;JOB:DOCINPUTS&gt;
 &lt;JOB:DOCINPUT /&gt;
 &lt;/JOB:DOCINPUTS&gt;
 &lt;JOB:DOCOUTPUTS&gt;
 &lt;JOB:DOCOUTPUT /&gt;
 &lt;/JOB:DOCOUTPUTS&gt;
 &lt;/JOB&gt;
&lt;/JOBS&gt;
</code></pre>

My question: how do I create an <code>XmlDocument</code> that contains a root element with multiple namespaces?

How do I add multiple namespaces to the root element with XmlDocument?

我需要使用包含多个名称空间的根元素创建一个XmlDocument。我使用的是C# 2.0或3.0下面是我的代码：XmlDocument doc = new XmlDocument();XmlElement root = doc.CreateElement("JOBS", "http://www.example.com"...

问如何使用XmlDocument将多个名称空间添加到根元素？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何使用XmlDocument将多个名称空间添加到根元素？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何使用XmlDocument将多个名称空间添加到根元素？
EN