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LinkedList<T>.AddFirst Method

Definition

Namespace:: System.Collections.Generic

Assemblies:: System.dll, System.Collections.dll

Assemblies:: netstandard.dll, System.Collections.dll

Assembly:: System.Collections.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Important

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Adds a new node or value at the start of the LinkedList<T>.

Overloads

Name	Description
AddFirst(LinkedListNode<T>)	Adds the specified new node at the start of the LinkedList<T>.
AddFirst(T)	Adds a new node containing the specified value at the start of the LinkedList<T>.

AddFirst(LinkedListNode<T>)

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

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

public:
 void AddFirst(System::Collections::Generic::LinkedListNode<T> ^ node);

public void AddFirst(System.Collections.Generic.LinkedListNode<T> node);

member this.AddFirst : System.Collections.Generic.LinkedListNode<'T> -> unit

Public Sub AddFirst (node As LinkedListNode(Of T))

Parameters

node: LinkedListNode<T>

The new LinkedListNode<T> to add at the start of the LinkedList<T>.

Exceptions

ArgumentNullException

node is null.

InvalidOperationException

node belongs to another LinkedList<T>.

Examples

For an example that includes this method, see the LinkedList<T> class.

Remarks

LinkedList<T> accepts null 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.

Applies to

AddFirst(T)

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

Source:: LinkedList.cs

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

public:
 System::Collections::Generic::LinkedListNode<T> ^ AddFirst(T value);

public System.Collections.Generic.LinkedListNode<T> AddFirst(T value);

member this.AddFirst : 'T -> System.Collections.Generic.LinkedListNode<'T>

Public Function AddFirst (value As T) As LinkedListNode(Of T)

Parameters

value: T

The value to add at the start of the LinkedList<T>.

Returns

LinkedListNode<T>

The new LinkedListNode<T> containing value.