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LinkedList<T>.AddFirst Method (LinkedListNode<T>)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Adds the specified new node at the start of the LinkedList<T>.

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

Syntax

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

public void AddFirst(
    LinkedListNode<T> node
)

Parameters

Exceptions

Exception Condition
ArgumentNullException

node is nulla null reference (Nothing in Visual Basic).
InvalidOperationException

node belongs to another LinkedList<T>.

Remarks

LinkedList<T> accepts nulla null reference (Nothing in Visual Basic) as a valid Value for reference types and allows duplicate values.

If the LinkedList<T> is empty, the new node becomes the First and the Last.

This method is an O(1) operation.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.