Question

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

<xml here>
 <somenode>
   <child> </child>
   <children></children>
   <children></children>
   <children></children>  // I need to insert it
   <children></children>  // I need to insert this second time
   <children></children>
   <children></children>
   <child> </child>
 <somenode>
<xml here>

here somenode has some children where first and last children node names are same where as other nodes except the first and last node has some diffrent name ( identical to each other ). I am creating a function to insert a node at specific position, I am not sure about the criteria but may be in the mid.

• how can I insert node in specific position. I am using XMLnode.appendChild method for insertion
• Do I need to rearrange/sort nodes after insertion. Please suggest.
• How can I determine what is structure and how should I find where the new node should be added according to current document structure.

Answer 1

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();