XNode.AddBeforeSelf Method (Object)
Adds the specified content immediately before this node.
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
For details about the valid content that can be passed to this method, see Valid Content of XElement and XDocument Objects.
The XContainer stores its child nodes as a singly-linked list of XNode objects. This means that the AddBeforeSelf method must traverse the list of direct child nodes under the parent container. Therefore, using this method might affect your performance.
The following example uses this method to add an element into the tree.
XElement xmlTree = new XElement("Root", new XElement("Child1", 1), new XElement("Child2", 2), new XElement("Child3", 3), new XElement("Child4", 4), new XElement("Child5", 5) ); XElement child1 = xmlTree.Element("Child1"); child1.AddBeforeSelf( new XElement("NewChild", 10) ); Console.WriteLine(xmlTree);
This example produces the following output:
Available since 4.5
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1