我有一个带有根元素和两个子元素'diagnostic'和'results'的XML文档。'results'元素然后具有任意数量的名称为'result'的元素。
当这个文档加载到XmlDocument中时,很容易导航结构并看到这正是事情的运作方式。我可以编写一个递归函数来选择所有的"result"元素。 XmlDocument.SelectNodes("//results")没有问题地找到节点。
然而,
* XmlDocument.SelectNodes("//results/result") 什么都没找到。
* XmlDocument.SelectNodes("//result") 什么都没找到。
我已经跟同事交流过了,他在使用XmlDocument.SelectNodes中的Xpath时也遇到了麻烦。还有其他人碰到过这种问题吗?有什么解决办法吗?
XML文件:
<?xml version="1.0" encoding="UTF-8"?>
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="10" yahoo:created="2009-08-07T10:19:59Z" yahoo:lang="en-US" yahoo:updated="2009-08-07T10:19:59Z" yahoo:uri="http://query.yahooapis.com/v1/yql?q=select+*+from+search.news+where+query%3D%22Tanzania%22">
<diagnostics>
<publiclyCallable>true</publiclyCallable>
<url execution-time="47"><![CDATA[http://boss.yahooapis.com/ysearch/news/v1/Tanzania?format=xml&start=0&count=10]]></url>
<user-time>49</user-time>
<service-time>47</service-time>
<build-version>2579</build-version>
</diagnostics>
<results>
<result xmlns="http://www.inktomi.com/">
<abstract>Kakungulu Cup winners SC Villa face Tanzania’s Simba SC this afternoon at the National stadium in Dar es salaam. “We had a very tiresome journey. The road was so bad and the road blocks were so many. However, we finally reached but the boys were so tired,” said Kato.</abstract>
<clickurl>http://lrd.yahooapis.com/_ylc=X3oDMTQ4cXAxcnRoBF9TAzIwMjMxNTI3MDIEYXBwaWQDb0pfTWdwbklrWW5CMWhTZnFUZEd5TkouTXNxZlNMQmkEY2xpZW50A2Jvc3MEc2VydmljZQNCT1NTBHNsawN0aXRsZQRzcmNwdmlkA21VVGlta2dlQXUzeEYuM0xGQkQzR1pUU1FIS0dORXA4cUk4QUJJX1U-/SIG=12vhpskdd/**http%3A//www.monitor.co.ug/artman/publish/sports/SC_Villa_face_Simba_in_Tanzania_89289.shtml</clickurl>
<date>2009/08/07</date>
<language>english</language>
<source>The Monitor</source>
<sourceurl>http://www.monitor.co.ug/</sourceurl>
<time>20:22:32</time>
<title>SC Villa face Simba in Tanzania</title>
<url>http://www.monitor.co.ug/artman/publish/sports/SC_Villa_face_Simba_in_Tanzania_89289.shtml</url>
</result>
XPATH
doc.SelectNodes("//result") 没有返回结果。