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

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

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

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

'Declaration
Public Sub AddFirst ( _
	node As LinkedListNode(Of T) _
)

Parameters

node
Type: System.Collections.Generic.LinkedListNode(Of T)
The new LinkedListNode(Of T) to add at the start of the LinkedList(Of T).

ExceptionCondition
ArgumentNullException

node is Nothing.

InvalidOperationException

node belongs to another LinkedList(Of T).

LinkedList(Of T) accepts Nothing 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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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