XPath查询根据子元素的组合进行匹配 [英] XPath query to match depending on combinations of child elements

问题描述

给出以下XML代码段

 <Events>
    <Event>
     <DateTime>22.09.2009 11:27:18</DateTime>
     <EventType>Download</EventType>
 </Event>

返回今天创建的所有类型为下载的所有事件的XPath查询是什么?

What is the XPath query to return all Events created today of type download?

推荐答案

/Events/Event[starts-with(DateTime, '22.09.2009') and EventType='Download']

由于我假设这是您上一个问题的后续内容，因此您可能希望使用此代码段而不是SelectSingleNode来获取文件中的所有事件(如果可以有多个事件):

Since I assume that this is a follow-up to your previous question, you might want to use this snippet instead of SelectSingleNode to get all events in a file (if there can be multiple):

foreach (XPathNavigator node in doc.CreateNavigator().Select(expression)) {
    // matching node found in document; will process all matching nodes
}

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