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XNode.AddBeforeSelf Method (Object[])

Adds the specified content immediately before this node.

Namespace:  System.Xml.Linq
Assemblies:   System.Xml.XDocument (in System.Xml.XDocument.dll)
  System.Xml.Linq (in System.Xml.Linq.dll)

member AddBeforeSelf : 
        content:Object[] -> unit

Parameters

content
Type: System.Object[]

A parameter list of content objects.

ExceptionCondition
InvalidOperationException

The parent is a null reference (Nothing in Visual Basic).

For details about the valid content that can be passed to this method, see Valid Content of XElement and XDocument Objects.

This method will raise the Changed and the Changing events.

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 function might affect your performance.

The following example uses a LINQ query to create an IEnumerable(T) of XElement, which it then passes to this method. This adds the results of a query to the tree in the desired location.

No code example is currently available or this language may not be supported.

This example produces the following output:

<Root>
  <Element4>4</Element4>
  <Element5>5</Element5>
  <Child1>1</Child1>
  <Child2>2</Child2>
  <Child3>3</Child3>
  <Child4>4</Child4>
  <Child5>5</Child5>
</Root>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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