xml node delete

1)

<navigation> 

 <page id="1"></page>

 <page id="2"></page>

 <page id="3"></page> 

 <page id="4"></page>

 <page id="5"></page>

</navigation>

 

XmlDocument d = new XmlDocument(); 

    d.Load("MyFileName.Xml"); 

 XmlNode t = d.SelectSingleNode("/navigation/page[@id='1']");

 t.ParentNode.RemoveChild(t);

d.Save();

 2)

 XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(FilePathToLoad);
XmlNodeList aElements = xmlDocument.SelectNodes(XPathQueryStrint);

foreach (XmlNode node in aElements)
{
node.ParentNode.RemoveChild(node);
} 

 

<?xml version="1.0"?> 
<Xml1> 
  <Settings> 
    <Setting name="DisplayFormat" value="Full" /> 
    <Setting name="File1" value="a" /> 
    <Setting name="File1" value="b" /> 
    <Setting name="File1" value="c" /> 
    <Setting name="File1" value="d" /> 
  </Settings> 
</Xml1> 
XmlDocument doc = new XmlDocument(); 
doc.Load(fileName); 
XmlNodeList nodes = doc.SelectNodes("//Setting[@name='File1']"); 
or

XDocument doc = XDocument.Load("input.xml"); 
var q = from node in doc.Descendants("Setting") 
        let attr = node.Attribute("name") 
        where attr != null && attr.Value == "File1" 
        select node; 
q.ToList().ForEach(x => x.Remove()); 
doc.Save("output.xml"); 
-- node add

XmlDocument originalXml = new XmlDocument(); 
    originalXml.Load(path); 
    XmlNode menu = originalXml.SelectSingleNode("//Settings"); 
    XmlNode newSub = originalXml.CreateNode(XmlNodeType.Element, "Setting", null); 
    XmlAttribute xa = originalXml.CreateAttribute("name"); 
    xa.Value = "qwerty"; 
    XmlAttribute xb = originalXml.CreateAttribute("value"); 
    xb.Value = "555"; 
    newSub.Attributes.Append(xa); 
    newSub.Attributes.Append(xb); 
    menu.AppendChild(newSub); 
    originalXml.Save(path);