如何使用c＃找到单个xml节点值。 [英] How can find the single xml node value using c#.

问题描述

如何在不循环播放的情况下从休闲的xml中找到LastModefied值。

 <   BucketItem     xmlns   =  http： //schemas.datacontract.org/2004/07/Schakra.OneAWS.S3.Core.Resources.File\"   xmlns：i   =  http://www.w3.org/2001/XMLSchema-instance  >  
 <   ContentType  >  binary / octet-stream <   / ContentType  >  
 <   ETag  >  etag <   / ETag  >  
 <   LastModified  > 星期二，08四月2014 11:50 ：53 GMT <   / LastModified  >  
 <  元数据    xmlns：a   =  http://schemas.microsoft .com / 2003/10 /序列化/数组 >  
 <   a：KeyValueOfstringstring  >  
 <   a：键 >  hello <   / a：Key  >  
 <   a：值 < span class =code-keyword>>  1 <   / a：值 >  
 <   / a：KeyValueOfstringstring  >  
 <   a：KeyValueOfstringstring  >  
 <   a：键 >  hi <   / a：密钥 >  
 <   a：值 >  4 <   / a：值 >  
 <   / a：KeyValueOfstringstring  >  
 <   /元数据 >  
 <  所有者    xmlns：a   =  http://schemas.datacontract.org/ 2004/07 / Schakra.OneAWS.S3.Core.Resources >  
 <   a：_x003C_DisplayName_x003E_k__BackingField  >  owner1 < span class =code-keyword><   / a：_x003C_DisplayName_x003E_k__BackingField  >  
 <   a：_x003C_ID_x003E_k__BackingField  >  12345 <   / a：_x003C_ID_x003E_k__BackingField  >  
 <   / Owner  > ;  
 <  大小  >  444 <   / Size  >  
 <   / BucketItem  >  

thanks

purna

解决方案

使用 XmlDocument 类 [ ^ ]。

如果我们使用它，我们不希望循环xml节点。

 XmlDocument xmldocinner = new XmlDocument（）; 
 xmldocinner.Load（MetaDataRepository +/+ metadataMappedKey）; 
 <   pre    < span class =code-attribute> lang   =  cs >  var root = xmldocinner.GetElementsByTagName（& quot; LastModified& quot;）; 
 var lastmodifieddate = root [0] .InnerText; <   / pre  >  

Hi,

How can I find the "LastModefied" value from the fallowing xml with out looping.

<BucketItem xmlns="http://schemas.datacontract.org/2004/07/Schakra.OneAWS.S3.Core.Resources.File" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <ContentType>binary/octet-stream</ContentType>
  <ETag>etag</ETag>
  <LastModified>Tue, 08 Apr 2014 11:50:53 GMT</LastModified>
  <Metadata xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
    <a:KeyValueOfstringstring>
      <a:Key>hello</a:Key>
      <a:Value>1</a:Value>
    </a:KeyValueOfstringstring>
    <a:KeyValueOfstringstring>
      <a:Key>hi</a:Key>
      <a:Value>4</a:Value>
    </a:KeyValueOfstringstring>
  </Metadata>
  <Owner xmlns:a="http://schemas.datacontract.org/2004/07/Schakra.OneAWS.S3.Core.Resources">
    <a:_x003C_DisplayName_x003E_k__BackingField>owner1</a:_x003C_DisplayName_x003E_k__BackingField>
    <a:_x003C_ID_x003E_k__BackingField>12345</a:_x003C_ID_x003E_k__BackingField>
  </Owner>
  <Size>444</Size>
</BucketItem>

thanks
purna

解决方案

Use the XmlDocument Class[^].

If we are using this we don't want loop the xml nodes.

XmlDocument xmldocinner = new XmlDocument();
            xmldocinner.Load(MetaDataRepository + "/" + metadataMappedKey);
<pre lang="cs">var root = xmldocinner.GetElementsByTagName(&quot;LastModified&quot;);
var lastmodifieddate = root[0].InnerText;</pre>

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