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LinkedList(Of T).AddBefore Method (LinkedListNode(Of T), LinkedListNode(Of T))

Adds the specified new node before the specified existing node in the LinkedList(Of T).

Namespace:  System.Collections.Generic
Assemblies:   System.Collections (in System.Collections.dll)
  System (in System.dll)

'Declaration
Public Sub AddBefore ( _
	node As LinkedListNode(Of T), _
	newNode As LinkedListNode(Of T) _
)

Parameters

node
Type: System.Collections.Generic.LinkedListNode(Of T)

The LinkedListNode(Of T) before which to insert newNode.

newNode
Type: System.Collections.Generic.LinkedListNode(Of T)

The new LinkedListNode(Of T) to add to the LinkedList(Of T).

ExceptionCondition
ArgumentNullException

node is Nothing.

-or-

newNode is Nothing.

InvalidOperationException

node is not in the current LinkedList(Of T).

-or-

newNode belongs to another LinkedList(Of T).

LinkedList(Of T) accepts Nothing as a valid Value for reference types and allows duplicate values.

This method is an O(1) operation.

For an example that includes this method, see the LinkedList(Of T) class.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

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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