Inserting XML node at specific position

Question

I have an XML file and I am loading it in Xmldocument. This document has a node with some child nodes like this

Answer 1

Here is a solution without using LINQ to XML. It's implemented as an extension method for the XmlNode class:

public static void InsertAt(this XmlNode node, XmlNode insertingNode, int index = 0)
{
    if(insertingNode == null)
        return;
    if (index < 0)
        index = 0;

    var childNodes = node.ChildNodes;
    var childrenCount = childNodes.Count;

    if (index >= childrenCount)
    {
        node.AppendChild(insertingNode);
        return;
    }

    var followingNode = childNodes[index];

    node.InsertBefore(insertingNode, followingNode);
}

Now, you can insert a node at the desired position as simple as:

    parentXmlNode.InsertAt(childXmlNode, 7);

Answer 2

http://www.c-sharpcorner.com/Forums/Thread/55428/how-to-insert-xml-child-node-programmatically.aspx Cheack it!I guess it will help u.

Answer 3

you can use XLinq to modify XML document

Following is an example of xml modification

    String xmlString = "<?xml version=\"1.0\"?>"+"<xmlhere>"+
    "<somenode>"+
    " <child> </child>"+
    " <children>1</children>"+ //1
    " <children>2</children>"+ //2
    " <children>3</children>"+ // 3, I need to insert it
    " <children>4</children>"+  //4,  I need to insert this second time
    " <children>5</children>"+
    " <children>6</children>"+ 
    " <child> </child>"+
    " </somenode>"+
    "</xmlhere>";

    XElement root = XElement.Parse(xmlString);
    var childrens = root.Descendants("children").ToArray();
    var third = childrens[3];
    var fourth = childrens[4];
    third.AddBeforeSelf(new XElement("children"));
    fourth.AddBeforeSelf(new XElement("children"));

    var updatedchildren = root.Descendants("children").ToArray();