Linq (3) XML operations

1. Use Linq to create an XML

// Create dummy XML to work

Var root = new XElement ("parent ",

From I in new int [] {1, 2, 3, 4, 5, 6}

Select new XElement ("child ",

New XAttribute ("number", I )));

This will create XML like,

<? Xmlversion = "1.0" encoding = "UTF-8"?>

<Parent>

<Childnumber = "1"/>

<Childnumber = "2"/>

<Childnumber = "3"/>

<Childnumber = "4"/>

<Childnumber = "5"/>

<Childnumber = "6"/>

</Parent>

2. query and add an Xml Node

// Get the element (child3)

XElement child3 = root. Descendants ("child"). First (

El => (int) el. Attribute ("number") = 3 );

// Add element before the child3

Child3.AddBeforeSelf (new XElement ("child25 "));

// Add sub-element to the child3

Child3.Add (new XElement ("grandchild "));

// Add element after the child3

Child3.AddAfterSelf (new XElement ("child35 "));

// Add attribute to the child3

Child3.Add (new XAttribute ("attr", "something "));

// Change the existing attribute

Child3.SetAttributeValue ("number", 100 );

After all these activities you will get the following output,

<? Xmlversion = "1.0" encoding = "UTF-8"?>

<Parent>

<Childnumber = "1"/>

<Childnumber = "2"/>

<Child25/>

<Childnumber = "100" attr = "something">

<Grandchild/>

</Child>

<Child35/>

<Childnumber = "4"/>

<Childnumber = "5"/>

<Childnumber = "6"/>

</Parent>

3. delete an Xml Node
Child3.Remove ();