[英]XElement value in C#
How to get a value of XElement
without getting child elements? 如何在不获取子元素的情况下获取XElement
的值?
An example: 一个例子:
<?xml version="1.0" ?>
<someNode>
someValue
<child>1</child>
<child>2</child>
</someNode>
If i use XElement.Value for <someNode>
I get "somevalue<child>1</child><child>2<child>"
string but I want to get only "somevalue" without "<child>1</child><child>2<child>"
substring. 如果我对<someNode>
使用XElement.Value,我会得到"somevalue<child>1</child><child>2<child>"
字符串,但我想只获得“somevalue”而没有"<child>1</child><child>2<child>"
substring。
You can do it slightly more simply than using Descendants
- the Nodes
method only returns the direct child nodes: 您可以比使用Descendants
更简单地执行此操作 - Nodes
方法仅返回直接子节点:
XElement element = XElement.Parse(
@"<someNode>somevalue<child>1</child><child>2</child></someNode>");
var firstTextValue = element.Nodes().OfType<XText>().First().Value;
Note that this will work even in the case where the child elements came before the text node, like this: 请注意,即使在子元素位于文本节点之前的情况下,这也会起作用,如下所示:
XElement element = XElement.Parse(
@"<someNode><child>1</child><child>2</child>some value</someNode>");
var firstTextValue = element.Nodes().OfType<XText>().First().Value;
There is no direct way. 没有直接的方法。 You'll have to iterate and select. 你必须迭代并选择。 For instance: 例如:
var doc = XDocument.Parse(
@"<someNode>somevalue<child>1</child><child>2</child></someNode>");
var textNodes = from node in doc.DescendantNodes()
where node is XText
select (XText)node;
foreach (var textNode in textNodes)
{
Console.WriteLine(textNode.Value);
}
I think what you want would be the first descendant node, so something like: 我想你想要的是第一个后代节点,所以类似于:
var value = XElement.Descendents.First().Value;
Where XElement
is the element representing your <someNode>
element. 其中XElement
是表示<someNode>
元素的元素。
You can specifically ask for the first text element (which is "somevalue"), so you could also do: 你可以特别要求第一个文本元素(这是“somevalue”),所以你也可以这样做:
var value = XElement.Descendents.OfType<XText>().First().Value;
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.