如何从文件中删除xml元素？

Question

在XML文件中,例如:

<Snippets>
 <Snippet name="abc">
   <SnippetCode>
   code goes here
   </SnippetCode>
 </Snippet>

 <Snippet name="def">
   <SnippetCode>
   code goes here
   </SnippetCode>
 </Snippet>
</Snippets>

当只给出属性名称(如abc或def)时,如何删除元素？

Answer 1

你可以尝试这样的事情:

string xmlInput = @"<Snippets>
 <Snippet name=""abc"">
   <SnippetCode>
   code goes here
   </SnippetCode>
 </Snippet>

 <Snippet name=""def"">
   <SnippetCode>
   code goes here
   </SnippetCode>
 </Snippet>
</Snippets>";

// create the XML, load the contents
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlInput);

// find a node - here the one with name='abc'
XmlNode node = doc.SelectSingleNode("/Snippets/Snippet[@name='abc']");

// if found....
if (node != null)
{
   // get its parent node
   XmlNode parent = node.ParentNode;

   // remove the child node
   parent.RemoveChild(node);

   // verify the new XML structure
   string newXML = doc.OuterXml;

   // save to file or whatever....
   doc.Save(@"C:\temp\new.xml");
}