xml vb.net：如何删除第二个孩子？ [英] xml vb.net : how to delete second child?

问题描述

我有这个xml：

 <   un：casamae     Id   =  1 >  
 <   un：casafilha     Id   =  1 >  
 <   xn：telhado    < span class =code-attribute> id   = 没有记录 >  
 <   / xn：telhado  >  
 <   xn：telhado     id   = 没有记录   修饰符  = 创建 >  
 <   xn：composicao   >  
 <   xn：tipotelha  >  vermelho <   / xn：vsDataType  >  
 <   xn：numerotelhas  >  127 <   / xn：vsDataFormatVersion  >  
 <   es：vermelho    < span class =code-keyword> /  >  
 <   / xn：composicao  >  
 <   / xn：telhado  >  
 <   xn：muro     id   =   256  修饰符  = 创建 >  
 <   / xn：muro  >  
 <   / un：casafilha  >  
  <   un：casafilha     Id   =  65501 >  
 <   / un：casafilha  >  

我想要这个：



< pre lang =xml> < un：casamae Id = 1 >
< un：casafilha Id = < span class =code-keyword> 1 >
< xn：muro id = 256 修饰符 = 创建 >
< / xn：muro >
< / un：casafilha >
< un：casafilha Id = 65501 >
< / un ：casafilha >

这是代码我到目前为止：

 doc2.Load（folder_dest& \ xpto.xml）
 For casafilha in casafihalist 
 Dim xpathstring2 =un：casamae // un：casafilha [@ Id =& casafilha& ]
 Dim nodeselect2 As XmlNode = doc2.SelectSingleNode（xpathstring2，namespaces）
 For Each node As XmlNode in nodeselect2.SelectNodes（// xn：telhado [@id =''without records'' ]，名称空间）
 node.ParentNode.RemoveChild（node）
下一页
下一页casafilha 
 doc2.Save（folder_dest&\ xptox）
 

问题：

我尝试了几种解决方案，但到目前为止，我只是能够删除带有id属性的第一个chid xml等于没有记录，总是留下id =without records和modifier =create的那个。



如何删除任何类型的telhado id =没有记录及其自己的子元素？

解决方案

 doc2.SelectSingleNode 

您选择的是单个节点。



必须使用此功能 http://msdn.microsoft.com/en-us /library/system.xml.xmlnode.selectnodes.aspx [ ^ ]接收节点列表。



祝你好运！

JAFC

doc2.Load（folder_dest&\ xptox）



Dim nodeselect2作为XmlNodelist



nodeselect2 = doc2.SelectNodes（// xn：telhado [@id =''没有记录'']，命名空间）



For Each node As XmlNode In nodeselect2



doc2.RemoveChild（node）



下一页



doc2.Save（folder_dest&\ xptox）

I have this xml :

<un:casamae Id="1">
           <un:casafilha Id="1">
            <xn:telhado id="without records">
           </xn:telhado>
                <xn:telhado id="without records" modifier="create">
               <xn:composicao>
                 <xn:tipotelha>vermelho</xn:vsDataType>
                 <xn:numerotelhas>127</xn:vsDataFormatVersion>
                 <es:vermelho />
               </xn:composicao>
             </xn:telhado>
                <xn:muro id=256 modifier="create">
                </xn:muro>
           </un:casafilha>
           <un:casafilha Id="65501">
           </un:casafilha>

I want this :

<un:casamae Id="1">
           <un:casafilha Id="1">
                <xn:muro id=256 modifier="create">
                </xn:muro>
           </un:casafilha>
           <un:casafilha Id="65501">
           </un:casafilha>

This is the code I have so far:

doc2.Load(folder_dest & "\xpto.xml")
           For Each casafilha In casafihalist
               Dim xpathstring2 = "un:casamae//un:casafilha[@Id=" & casafilha & "]"
               Dim nodeselect2 As XmlNode = doc2.SelectSingleNode(xpathstring2, namespaces)
               For Each node As XmlNode In nodeselect2.SelectNodes("//xn:telhado[@id=''without records'']", namespaces)
                   node.ParentNode.RemoveChild(node)
               Next
           Next casafilha
           doc2.Save(folder_dest & "\xpto.xml")

The problem:
I''ve tried several solutions, but so far, I just being able of deleting the first chid xml with the "id" atribute equals "without records", leaving always the one with the id="without records" and modifier="create" behind.

How can I delete any kind of telhado id="without records" and their own subelements?

解决方案

Hi,

doc2.SelectSingleNode

You''re selecting a single node.

Must use this function http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.selectnodes.aspx[^] to receive a list of nodes.

Good luck!
JAFC

doc2.Load(folder_dest & "\xpto.xml")

Dim nodeselect2 As XmlNodelist

nodeselect2=doc2.SelectNodes("//xn:telhado[@id=''without records'']", namespaces)

For Each node As XmlNode In nodeselect2

doc2.RemoveChild(node)

Next

doc2.Save(folder_dest & "\xpto.xml")

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