LinkedList(Of T).AddFirst Method (LinkedListNode(Of T))


Adds the specified new node at the start of the LinkedList(Of T).

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

Public Sub AddFirst (
	node As LinkedListNode(Of T)


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

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

Exception Condition

node is null.


node belongs to another LinkedList(Of T).

LinkedList(Of T) accepts null as a valid Value for reference types and allows duplicate values.

If the LinkedList(Of T) is empty, the new node becomes the First and the Last.

This method is an O(1) operation.

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

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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