blocks|key|749080|text|例如，如果您的XML看起来像<Foo>Bar</Foo>，那么"Bar“实际上被认为是一个单独的节点:一个XmlText节点(从XmlNode继承而来)。XmlText节点Value属性将是"Bar“。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|749081|"Foo“被认为是一个XmlElement+(也是XmlNode的子类)。XmlNode.Value根据节点的类型返回不同的内容。参见this+table，它显示Value总是为Element节点返回null。|749082|Foo节点的InnerText返回"Bar“，因为它连接了它的子节点的值(在本例中，只有一个XmlText节点)。|749083|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value%2528v=VS.110%2529.aspx^0|E|E|1H|7|1S|7|25|7|2E|5|0|B|A|P|7|11|D|29|5|2H|7|2S|4|1V|A|0|0|6|9|1A|7|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|H|3|I|5|6|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

If, for example, your XML looks like <code>&lt;Foo&gt;Bar&lt;/Foo&gt;</code> then "Bar" is actually considered a separate node: an <code>XmlText</code> node (sub-classed from <code>XmlNode</code>). The <code>Value</code> property of that <code>XmlText</code> node would be "Bar".

"Foo" is considered to be an <code>XmlElement</code> (also sub-classed from <code>XmlNode</code>). <code>XmlNode.Value</code> returns different things based on the type of node it is. See <a href="http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value%28v=VS.110%29.aspx" rel="noreferrer">this table</a> which shows that <code>Value</code> always returns <code>null</code> for <code>Element</code> nodes. 

The <code>InnerText</code> of the Foo node returns "Bar" because it concatenates the values of its children (in this case, only the one <code>XmlText</code> node).

blocks|key|532643|text|XML规范对术语和什么构成什么类型的XML对象非常挑剔。如前所述，element没有值。这是特定于attribute+(可能还有其他几种节点类型)的，因为attribute有一种element没有的语法，即name='value'。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|532644|如果您认为这很令人困惑，请查看子节点和后代之间的区别，或者根节点和文档元素之间的区别！|532645|entityMap^0|X|7|1D|9|25|9|2H|7|2V|C|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

The XML specification is very picky about terminology and what constitutes what type of XML object. As mentioned, <code>element</code> doesn't have a value. This is specific to <code>attribute</code> (and probably a couple of other node types) because <code>attribute</code> has a syntax that <code>element</code> does not, i.e. <code>name='value'</code>. 

If you think that's confusing, check out the difference between child and descendant, or the Root Node and the Document Element!

blocks|key|532696|text|我也遇到过类似的情况。我所做的是，选择当前节点的第一个子节点，检查它是否为XMLtext，然后显示它的值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|532697|XmlNodeList+xNList+=+xDOC.SelectNodes("//"+%2B+XMLElementname);

foreach+(XmlNode+xNode+in+xNList)
{
++++if+(xNode.ChildNodes.Count+==+1+&&+
++++++++xNode.FirstChild.GetType().ToString()+==+"System.Xml.XmlText")
++++{
++++++++XMLElements.Add(xNode.FirstChild.Value);
++++}
++++else
++++{
++++++++XMLElements.Add("This+is+not+a+Leaf+node");
++++}
}|code-block|syntax|javascript|532698|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|$]]

I had a similar situation. What I did is, I picked the first child of the current node and checked if it is XMLtext, then displayed its value.

<pre><code>XmlNodeList xNList = xDOC.SelectNodes("//" + XMLElementname);

foreach (XmlNode xNode in xNList)
{
 if (xNode.ChildNodes.Count == 1 &amp;&amp; 
 xNode.FirstChild.GetType().ToString() == "System.Xml.XmlText")
 {
 XMLElements.Add(xNode.FirstChild.Value);
 }
 else
 {
 XMLElements.Add("This is not a Leaf node");
 }
}
</code></pre>

blocks|key|532718|text|由于InnerXml元素是叶节点，因此url+(也称为url)属性包含元素值。对于元素节点，value属性将为null，如msdn文档https://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value(v=VS.110).aspx中所示。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|532719|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value(v=VS.110).aspx)^0|1V|28|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

As url element is the leaf node, the InnerText(also InnerXml) property contains the element value. For element nodes, the value property will be null as shown in msdn documentation <a href="https://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value(v=VS.110).aspx" rel="nofollow noreferrer">https://msdn.microsoft.com/en-us/library/system.xml.xmlnode.value(v=VS.110).aspx</a>.

I'm creating a ping application for school with an XML full of URLs.
I lost an hour because of <code>XmlNode.Value</code> was resulting in a null. 

Then I changed it into <code>InnerText</code> and it worked fine. 

Now I was wonder what's the difference because MSDN says that .Value returns the value of the node and <code>InnerText</code> returns the concatenated values of the node and all its child nodes.

Can someone explain this for me please?

<pre><code>&lt;sites&gt;
&lt;site&gt;
 &lt;url&gt;www.test.be&lt;/url&gt;
 &lt;email&gt;test@test.be&lt;/email&gt;
&lt;/site&gt;
&lt;site&gt;
 &lt;url&gt;www.temp.be&lt;/url&gt;
 &lt;email&gt;temp@temp.be&lt;/email&gt;
&lt;/site&gt;
&lt;site&gt;
 &lt;url&gt;www.lorim.ipsum&lt;/url&gt;
 &lt;email&gt;interim.address@domain.com&lt;/email&gt;
&lt;/site&gt;&lt;/sites&gt;
</code></pre>

XmlNode Value vs InnerText

我正在用一个充满URL的XML为学校创建一个ping应用程序。我浪费了一个小时，因为XmlNode.Value导致了null。然后我把它改成了InnerText，它工作得很好。现在我想知道有什么不同，因为MSDN说.Value返回节点的值，而InnerText返回节点及其所有子节点的连接值。有人能给我解释一下吗？<si...

问XmlNode值与InnerText值
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