XmlNode.ReplaceChild Method (XmlNode, XmlNode)
Replaces the child node oldChild with newChild node.
Assembly: System.Xml (in System.Xml.dll)
Public Overridable Function ReplaceChild ( newChild As XmlNode, oldChild As XmlNode ) As XmlNode
The new node to put in the child list.
The node being replaced in the list.
Return ValueType: System.Xml.XmlNode
The node replaced.
This node is of a type that does not allow child nodes of the type of the newChild node.
The newChild is an ancestor of this node.
The newChild was created from a different document than the one that created this node.
This node is read-only.
The oldChild is not a child of this node.
If the newChild is already in the tree, it is first removed.
If the newChild was created from another document, you can use XmlDocument.ImportNode to import the node to the current document. The imported node can then be passed to the ReplaceChild method.
Notes to Inheritors:
When overriding ReplaceChild in a derived class, in order for events to be raised correctly, you must call the ReplaceChild method of the base class.
The following example replaces the title element in the XML document.
Imports System Imports System.IO Imports System.Xml Public Class Sample Public Shared Sub Main() Dim doc As New XmlDocument() doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" & _ "<title>Pride And Prejudice</title>" & _ "</book>") Dim root As XmlNode = doc.DocumentElement 'Create a new title element. Dim elem As XmlElement = doc.CreateElement("title") elem.InnerText = "The Handmaid's Tale" 'Replace the title element. root.ReplaceChild(elem, root.FirstChild) Console.WriteLine("Display the modified XML...") doc.Save(Console.Out) End Sub 'Main End Class 'Sample
Available since 10
Available since 1.1