如何仅使用 XPath 和 C# .NET 获取元素内容
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How to get element content using only XPath and C# .NET
提问by mazury
I've found a lot of articles about how to get node content by using simple XPath expression and C#, for example:
我找到了很多关于如何使用简单的 XPath 表达式和 C# 获取节点内容的文章，例如：
XPath:
X路径：
/bookstore/author/first-name
C#:
C＃：
string xpathExpression = "/bookstore/author/first-name";
nodes = navigator.Select(xpathExpression);
I wonder how to get content that is inside of an element, and the same element is inside another element and another and another.
Just take a look on below code:
我想知道如何获取一个元素内的内容，而同一个元素在另一个元素内，又一个又一个。
看看下面的代码：
<Cell>
<CellContent>
<Para>
<ParaLine>
<String>ABCabcABC abcABC abc ABCABCABC.</string>
</ParaLine>
</Para>
</CellContent>
</Cell>
I only want to extract content ABCabcABC abcABC abc ABCABCABC.from Stringelement.
我只想ABCabcABC abcABC abc ABCABCABC.从String元素中提取内容。
Do you know how to resolve problem by use XPath expressionand .Net C#?
您知道如何使用XPath 表达式和.Net C#解决问题吗？
采纳答案by Vyktor
After googling c# .net xpathfor few seconds you'll find this article, which provides example which you can easily modify to use XPathDocument, XPathNavigatorand XPathNavigator::SelectSingleNode():
在谷歌搜索c# .net xpath几秒钟后，您会找到这篇文章，其中提供了可以轻松修改以使用的示例XPathDocument，XPathNavigator以及XPathNavigator::SelectSingleNode()：
XPathNavigator nav;
XPathDocument docNav;
string xPath;
docNav = new XPathDocument("c:\books.xml");
nav = docNav.CreateNavigator();
xPath = "/Cell/CellContent/Para/ParaLine/String/text()";
string value = nav.SelectSingleNode(xPath).Value
I recommend more reading on xPath syntax. Much more.
我建议更多阅读xPath 语法。多得多。
回答by M?rten Wikstr?m
navigator.SelectSingleNode("/Cell/CellContent/Para/ParaLine/String/text()").Value
回答by vijay
You can use Linq to XML as well to get value of specified element
您也可以使用 Linq to XML 来获取指定元素的值
var list = XDocument.Parse("xml string").Descendants("ParaLine")
.Select(x => x.Element("string").Value).ToList();
From above query you will get value of all the string element which are inside ParaLine tag.
从上面的查询中，您将获得 ParaLine 标记内的所有字符串元素的值。
