How to add new element below existing element using xml Document

Question

I have an element Name \"Dispute\" and want to add new element name \"Records\" below the element.
Eg: The current XML is in this format

Answer 1

InsertAfter must be called on the parent node (in your case "NonFuel").

nonFuel.InsertAfter(xmlRecordNo, dispute);

It may look a little confusing but it reads this way: you are asking the parent node (nonFuel) to add a new node (xmlRecordNo) after an existing one (dispute).

A complete example is here:

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(@"<NonFuel><Desc>Non-Fuel</Desc><Description></Description><Quantity/><Amount/><Additional/><Dispute>0</Dispute></NonFuel>");

XmlNode nonFuel = xmlDoc.SelectSingleNode("//NonFuel");
XmlNode dispute = xmlDoc.SelectSingleNode("//Dispute");


XmlNode xmlRecordNo=  xmlDoc.CreateNode(XmlNodeType.Element, "Records", null);
xmlRecordNo.InnerText = Guid.NewGuid().ToString();
nonFuel.InsertAfter(xmlRecordNo, dispute);

Answer 2

Use 'AppendChild' method - to add as last element.

Answer 3

XmlDocument doc = new XmlDocument();
doc.Load("input.xml");

XmlElement records = doc.CreateElement("Records");
records.InnerText = Guid.NewGuid().ToString();
doc.DocumentElement.AppendChild(records);

doc.Save("output.xml"); // if you want to overwrite the input use doc.Save("input.xml");