vb.net 删除 XML 文件中的节点？
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Remove nodes in an XML file?
提问by Chelovek
I have xml file and want to remove some nodes:
我有 xml 文件并想删除一些节点：
<group>
<First group>
</First group>
<Second group>
<Name>
</Name>
<Name>
</Name>
<Name>
</Name>
</Second group>
</group>
I want to remove nodes Name, because later I want to create new nodes.
我想删除节点Name，因为稍后我想创建新节点。
Here is the code what I have what I have:
这是我所拥有的代码：
Dim doc As New XmlDocument()
Dim nodes As XmlNodeList
doc.Load("doc.xml")
nodes = doc.SelectNodes("/group")
Dim node As XmlNode
For Each node In nodes
node = doc.SelectSingleNode("/group/Second group/Name")
If node IsNot Nothing Then
node.ParentNode.RemoveNode(node)
doc.Save("doc.xml")
End If
Next
采纳答案by maxedev
Part of the problem is the XML is not valid.
部分问题是 XML 无效。
Naming Elements and Attributes
Element names cannot contain spaces.
元素名称不能包含空格。
Assuming valid XML element names ie: First_group, Second_group, the following code removes all children from Second_group
假设有效的 XML 元素名称即：First_group、Second_group，以下代码从 Second_group 中删除所有子项
Dim doc As New XmlDocument()
Dim nodes As XmlNodeList
doc.Load("c:\temp\node.xml")
nodes = doc.SelectNodes("/group/Second_group")
For Each node As XmlNode In nodes
If node IsNot Nothing Then
node.RemoveAll()
doc.Save("c:\temp\node.xml")
End If
Next
Or LINQ to XML:
或 LINQ to XML：
Dim doc As XDocument = XDocument.Load("c:\temp\node.xml")
doc.Root.Element("Second_group").Elements("Name").Remove()
doc.Save("c:\temp\node.xml")
回答by Crwydryn
Try RemoveChild instead of RemoveNode.
尝试 RemoveChild 而不是 RemoveNode。
