我有一个XML文件如下:
<?xml version="1.0" encoding="utf-8" ?>
<publisher>
<name>abc</name>
<link>http://</link>
<description>xyz</description>
<category title="Top">
<item>
<title>abc</title>
<link>http://</link>
<pubDate>1</pubDate>
<description>abc</description>
</item>
<item>
<title>abc</title>
<link>http://</link>
<pubDate>2</pubDate>
<description>abc</description>
</item>
</category>
<category title="Top2">
<item>
<title>abc</title>
<link>http://</link>
<pubDate>1</pubDate>
<description>abc</description>
</item>
<item>
<title>abc</title>
<link>http://</link>
<pubDate>2</pubDate>
<description>abc</description>
</item>
</category>
</publisher>
我需要在C#中编写一个LINQ to XML查询,它根据提供的属性值返回“category”标记下的所有内容。我尝试了以下代码,但它给了我错误。任何帮助将不胜感激:
System.Xml.Linq.XElement xml = System.Xml.Linq.XElement.Parse(e.Result);
IEnumerable<string> items = from category in xml.Elements("category")
where category.Attribute("title").Value == "Top"
select category.ToString();
答案 0 :(得分:1)
IEnumerable<string> items = from category in xml.Descendants("category")
where category.Attribute("title").Value == "Top"
select category.ToString();
当然,这会给你一个包含一个字符串的列表。如果你只想要其中的字符串:
var items = (from category in xml.Descendants("category")
where category.Attribute("title").Value == "Top"
select category.ToString()).First();
但是,如果你想继续处理XML,你可能真的希望它作为XElement对象:
var items = (from category in xml.Descendants("category")
where category.Attribute("title").Value == "Top"
select category).First();