Xml operation

****************Creating new xml file************************

XmlTextWriter newXmlFile = new   XmlTextWriter(Give path and name of xml file to create,System.Text.Encoding.Default);

newXmlFile.WriteStartDocument();

//creating the name of the main node
newXmlFile.WriteStartElement("Start","");

//creating child nodes
newXmlFile.WriteElementString("First");
newXmlFile.WriteFullEndElement();
       newXmlFile.WriteEndElement();
newXmlFile.Flush();
newXmlFile.Close();

************************Insert data to xml file************************

// Create xml dom
XmlDocument XMLDom = new XmlDocument();

//load your xml file
XMLDom.Load(@"path of your xml file");

//Select main node
XmlNode newXMLNode = XMLDom.SelectSingleNode("/Main node name");

//get the node where you want to insert the data
XmlNode childNode = XMLDom.CreateNode(XmlNodeType.Element,"your node name where you want to insert data","");

//In the below step "name" is your node name and "sree" is your data to insert
XmlAttribute newAttribute = XMLDom.CreateAttribute("name","sree","");
childNode.Attributes.Append(newAttribute);
newXMLNode.AppendChild(childNode);

************************Modify data in xml file************************
// Select childnode where you want to modify data. The following step "PNode" is parent node and "Node1" is the one which you want to update the data

XmlNodeList newXMLNodes = XMLDom.SelectNodes("/PNode/Node1");
foreach(XmlNode newXMLNode in newXMLNodes)

//Updating data where "Node1" is "sree" with "kambham"
if(newXMLNode.InnerText == "sree")
newXMLNode.InnerText = "kambham";
XMLDom.Save("Path of your XML file");
XMLDom = null;
//The above step updates xml file where ever it finds "sree" with "kambham"

************************Delete data in xml file************************
XmlNodeList newXMLNodes = XMLDom.SelectNodes("/PNode/Node1");
foreach(XmlNode newXMLNode in newXMLNodes)
if(newXMLNode.InnerText == "sree")
newXMLNode.ParentNode.RemoveChild(newXMLNode);
XMLDom.Save("Path of your XML file");
XMLDom = null;
//The above step deletes data in xml file where ever it finds "sree"