xpath查询以选择范围内的数据

Question

<?xml version="1.0"?>
<AppXmlLogWritter>
  <LogData>
    <LogID>5678201301161640382919</LogID>
    <LogDateTime>20130114164038</LogDateTime>            
  </LogData>
  <LogData>
    <LogID>5678201301161640382920</LogID>
    <LogDateTime>20130115154040</LogDateTime>           
  </LogData>
  <LogData>
  <LogID>5678201301161640382921</LogID>
  <LogDateTime>20130116164042</LogDateTime>          
  </LogData>
</AppXmlLogWritter>

strXpathQuery = @"/AppXmlLogWritter/LogData[LogDateTime/text()>=[starts-with(. , '20130115') and LogDateTime/text()<=starts-with(. , '20130116')]";

我必须编写xpath查询来选择LogDateTime以20130115到20130117开头的范围内的logdata 我正在尝试上面的查询，但无法获取数据

Answer 1

请试一试：

/AppXmlLogWritter/LogData[substring(LogDateTime, 1, 8) >= 20130115 
                              and substring(LogDateTime, 1, 8) <= 20130116]

如果要在选择中包含20130117项，则应将“20130116”值更改为“20130117”。