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C# XMLPATH具有无效的令牌_C#_Xml_Xpath - Fatal编程技术网
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C# XMLPATH具有无效的令牌

c# xml xpath

C# XMLPATH具有无效的令牌,c#,xml,xpath,C#,Xml,Xpath,我想提取Date元素具有今天的DateTime的所有NDOE，除了比DateTime.now少10秒的秒 这是代码 C# DateTime total_seconds=Convert.ToDateTime（DateTime.Now.AddSeconds（-10））； 字符串st=“_127.0.0.1”； //字符串v=“1”； XPathNodeInterator itr=nav.Select（“pings/ping”+st+”[日期] xpathnodeiteerator itr=nav.S

我想提取Date元素具有今天的DateTime的所有NDOE，除了比DateTime.now少10秒的秒

这是代码

C#

DateTime total_seconds=Convert.ToDateTime（DateTime.Now.AddSeconds（-10））；
字符串st=“_127.0.0.1”；
//字符串v=“1”；
XPathNodeInterator itr=nav.Select（“pings/ping”+st+”[日期]

xpathnodeiteerator itr=nav.Select（“pings/ping”+st+”[date您写了“这就是错误”，但忘记粘贴错误。错误是什么（包括堆栈跟踪顶部）。

   DateTime total_seconds = Convert.ToDateTime(DateTime.Now.AddSeconds(-10));
        string st = "_127.0.0.1";
        //string v = "1";
        XPathNodeIterator itr = nav.Select("pings/ping" + st + "[DATE<" + total_seconds + "]/DATE");



<pings>
  <ping_127.0.0.1>
    <IP>127.0.0.1</IP>
    <RTT>0</RTT>
    <DATE>13-09-2015 16:47:09</DATE>
  </ping_127.0.0.1>
  <ping_127.0.0.1>
    <IP>127.0.0.1</IP>
    <RTT>1</RTT>
    <DATE>13-09-2015 16:47:10</DATE>
  </ping_127.0.0.1>
  <ping_127.0.0.1>
    <IP>127.0.0.1</IP>
    <RTT>2</RTT>
    <DATE>13-09-2015 16:47:11</DATE>
  </ping_127.0.0.1>
  <ping_127.0.0.1>
    <IP>127.0.0.1</IP>
    <RTT>1</RTT>
    <DATE>13-09-2015 16:47:12</DATE>
  </ping_127.0.0.1>
</pings>



XPathNodeIterator itr = nav.Select("pings/ping" + st + "[DATE<" + total_seconds + "]/DATE");



pings/ping_127.0.0.1[DATE<37712828]/DATE