删除节点及其子节点

Question

我想从XML文件中删除节点。

这是XML文件的样子。

<?xml version="1.0" encoding="utf-8"?> 
<MovieData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
    <Movie> 
    <Name>Death Race</Name> 
    <Type>Action</Type> 
    <Type>Adventure</Type> 
    <Rating>R</Rating> 
    <Disk>Blu-Ray</Disk> 
    </Movie> 
    <Movie> 
    <Name>Movie to be deleted</Name> 
    <Type>Action</Type> 
    <Type>Adventure</Type> 
    <Rating>R</Rating> 
    <Disk>Blu-Ray</Disk> 
    </Movie> 
    <Movie> 
    <Name>Death Race 2</Name> 
    <Type>Action</Type> 
    <Type>Adventure</Type> 
    <Rating>R</Rating> 
    <Disk>Blu-Ray</Disk> 
    <Time>time</Time> 
    </Movie> 
</MovieData> 

我希望它最终这样。

<?xml version="1.0" encoding="utf-8"?> 
<MovieData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
    <Movie> 
    <Name>Death Race</Name> 
    <Type>Action</Type> 
    <Type>Adventure</Type> 
    <Rating>R</Rating> 
    <Disk>Blu-Ray</Disk> 
    <Time>time</Time> 
    </Movie> 
    <Movie> 
    <Name>Death Race 2</Name> 
    <Type>Action</Type> 
    <Type>Adventure</Type> 
    <Rating>R</Rating> 
    <Disk>Blu-Ray</Disk> 
    <Time>time</Time> 
    </Movie> 
</MovieData> 

这是我到目前为止。这只会删除子节点。它不会删除节点。

XmlDocument doc = new XmlDocument(); 
doc.Load(movieListXML); 
XmlNode node = doc.SelectSingleNode("/MovieData"); 
foreach (XmlNode movie in node.SelectNodes("Movie")) 
{ 
    if (movie != null) 
    { 
     if (name == movie["Name"].InnerText) 
     { 
      if ((this checks the data to make sure it is the one to be deleted)) 
      { 
       movie.RemoveAll(); 
       doc.Save(movieListXML); 
       return; 
      } 
     } 
    } 
} 

Answer 1

尝试使用XmlNode.RemoveChild：

node.RemoveChild(movie); 

Answer 2

你也可以做到这一点使用LINQ。例如，做这样的事情：

var xDoc = XDocument.Load(xmlFile); 

var movie = xDoc.Descendants("Movie") 
    .FirstOrDefault(e => e.Element("Name").Value == "Movie to be deleted"); 

if (movie != null) { 
    movie.Remove(); 
} 

xDoc.Save(xmlFile);