在此XML
文件中,我希望获得用ID
属性
<?xml version="1.0"?>
<root>
<head>
<datemaj>20140206-15-04-00</datemaj>
</head>
<PressReleases>
<PressRelease id="545" version="1">
<Name>Convert number to string</Name>
<Date>20/05/1985</Date>
<Input>1</Input>
<Output>One</Output>
</PressRelease>
<PressRelease id="544" version="1">
<Name>Find succeeding characters</Name>
<Date>19/05/1985</Date>
<Input>abc</Input>
<Output>def</Output>
</PressRelease>
<PressRelease id="543" version="1">
<Name>Convert multiple numbers to strings</Name>
<Date>17/05/1985</Date>
<Input>123</Input>
<Output>One Two Three</Output>
</PressRelease>
<PressRelease id="542" version="1">
<Name>Find correlated key</Name>
<Date>02/05/1985</Date>
<Input>a1</Input>
<Output>b1</Output>
</PressRelease>
<PressRelease id="541" version="1">
<Name>Count characters</Name>
<Date>04/02/1985</Date>
<Input>This is a test</Input>
<Output>14</Output>
</PressRelease>
<PressRelease id="540" version="1">
<Name>Another Test</Name>
<Date>09/01/1985</Date>
<Input>Test Input</Input>
<Output>10</Output>
</PressRelease>
</PressReleases>
</root>
我尝试了这段代码,但是它没有返回任何内容:
XDocument xdoc = XDocument.Load(@"C:\Users\ARNAUD\Documents\local\temp.xml");
List<int> IDsInDistantXML = xdoc.Root.Elements("PressRelease")
.Select(pr => (int)pr.Attribute("id"))
.ToList();
PS:正确找到了XML
文件。
答案 0 :(得分:2)
尝试Descendants
List<int> IDsInDistantXML = xdoc.Descendants("PressRelease")
.Select(pr => (int)pr.Attribute("id"))
.ToList();
问题是你的PressRelease
元素不是你root
元素的直接子元素。所以什么都没有,你可以使用:
xdoc.Root.Element("PressReleases").Elements("PressRelease")
答案 1 :(得分:2)
PressRelease
个节点是PressReleases
的子节点,它是root
的子节点
在这种情况下,您需要更改如下:
List<int> IDsInDistantXML = xdoc.Root.Element("PressReleases")
.Elements("PressRelease")
.Select(pr => (int)pr.Attribute("id"))
.ToList();