linq到xml只选择具有特定元素的节点
本文关键字:元素 节点 xml 选择 linq | 更新日期: 2023-09-27 18:26:45
使用以下xml,我只想返回<category domain="Portal Sub" value="Events">
节点中有子元素的项。
我尝试使用以下代码,但它仍然返回所有节点。任何帮助都将不胜感激,因为我似乎不知道如何只获取存在子节点的项目。
<item guid="123">
<title>test1</title>
<category domain="Target">Business Decision Makers</category>
<category domain="Target">Individual Customers</category>
<category domain="Target">IT Decision Makers</category>
<category domain="Portal" value="IT Network">
<category domain="Portal Sub" value="Events">
<category domain="Portal Sub" value="Forum" />
</category>
</category>
</item>
<item guid="456">
<title>test2</title>
<category domain="Target">IT managers</category>
<category domain="Target">IT Professional</category>
<category domain="Portal" value="IT Network">
<category domain="Portal Sub" value="Events" />
</category>
</item>
var getFilteredItems = (from item in xdoc.Descendants("item")
where item.Descendants("category").Descendants("category").Any()
select new
{
etype = (from x in item.Elements("category").Elements("category")
where x.Attribute("value").Value == "Events"
select new
{
cctype = x.Descendants("category").Select(i => i.Attribute("value").Value ?? "")
}).First()
}).ToList();
from item in xdoc.Descendants("item")
where item.Descendants("category").Any(c => (string)c.Attribute("domain") == "Portal"
&& (string)c.Attribute("value") == "Events" && c.Elements().Any())
select ...