LinkedList<T>
Class
Definition
Represents a doubly linked list.
[System.Runtime.InteropServices.ComVisible(false)]
public class LinkedList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.ICollection, System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
- T
Specifies the element type of the linked list.
- Inheritance
-
LinkedList<T>
- Attributes
- Implements
Inherited Members
System.Object
Examples
The following code example demonstrates many features of the LinkedList<T> class.
#using <System.dll>
using namespace System;
using namespace System::Text;
using namespace System::Collections::Generic;
public ref class Example
{
public:
static void Main()
{
// Create the link list.
array<String^>^ words =
{ "the", "fox", "jumped", "over", "the", "dog" };
LinkedList<String^>^ sentence = gcnew LinkedList<String^>(words);
Display(sentence, "The linked list values:");
Console::WriteLine("sentence.Contains(\"jumped\") = {0}",
sentence->Contains("jumped"));
// Add the word 'today' to the beginning of the linked list.
sentence->AddFirst("today");
Display(sentence, "Test 1: Add 'today' to beginning of the list:");
// Move the first node to be the last node.
LinkedListNode<String^>^ mark1 = sentence->First;
sentence->RemoveFirst();
sentence->AddLast(mark1);
Display(sentence, "Test 2: Move first node to be last node:");
// Change the last node be 'yesterday'.
sentence->RemoveLast();
sentence->AddLast("yesterday");
Display(sentence, "Test 3: Change the last node to 'yesterday':");
// Move the last node to be the first node.
mark1 = sentence->Last;
sentence->RemoveLast();
sentence->AddFirst(mark1);
Display(sentence, "Test 4: Move last node to be first node:");
// Indicate, by using parentheisis, the last occurence of 'the'.
sentence->RemoveFirst();
LinkedListNode<String^>^ current = sentence->FindLast("the");
IndicateNode(current, "Test 5: Indicate last occurence of 'the':");
// Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
sentence->AddAfter(current, "old");
sentence->AddAfter(current, "lazy");
IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':");
// Indicate 'fox' node.
current = sentence->Find("fox");
IndicateNode(current, "Test 7: Indicate the 'fox' node:");
// Add 'quick' and 'brown' before 'fox':
sentence->AddBefore(current, "quick");
sentence->AddBefore(current, "brown");
IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':");
// Keep a reference to the current node, 'fox',
// and to the previous node in the list. Indicate the 'dog' node.
mark1 = current;
LinkedListNode<String^>^ mark2 = current->Previous;
current = sentence->Find("dog");
IndicateNode(current, "Test 9: Indicate the 'dog' node:");
// The AddBefore method throws an InvalidOperationException
// if you try to add a node that already belongs to a list.
Console::WriteLine("Test 10: Throw exception by adding node (fox) already in the list:");
try
{
sentence->AddBefore(current, mark1);
}
catch (InvalidOperationException^ ex)
{
Console::WriteLine("Exception message: {0}", ex->Message);
}
Console::WriteLine();
// Remove the node referred to by mark1, and then add it
// before the node referred to by current.
// Indicate the node referred to by current.
sentence->Remove(mark1);
sentence->AddBefore(current, mark1);
IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):");
// Remove the node referred to by current.
sentence->Remove(current);
IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:");
// Add the node after the node referred to by mark2.
sentence->AddAfter(mark2, current);
IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):");
// The Remove method finds and removes the
// first node that that has the specified value.
sentence->Remove("old");
Display(sentence, "Test 14: Remove node that has the value 'old':");
// When the linked list is cast to ICollection(Of String),
// the Add method adds a node to the end of the list.
sentence->RemoveLast();
ICollection<String^>^ icoll = sentence;
icoll->Add("rhinoceros");
Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':");
Console::WriteLine("Test 16: Copy the list to an array:");
// Create an array with the same number of
// elements as the inked list.
array<String^>^ sArray = gcnew array<String^>(sentence->Count);
sentence->CopyTo(sArray, 0);
for each (String^ s in sArray)
{
Console::WriteLine(s);
}
// Release all the nodes.
sentence->Clear();
Console::WriteLine();
Console::WriteLine("Test 17: Clear linked list. Contains 'jumped' = {0}",
sentence->Contains("jumped"));
Console::ReadLine();
}
private:
static void Display(LinkedList<String^>^ words, String^ test)
{
Console::WriteLine(test);
for each (String^ word in words)
{
Console::Write(word + " ");
}
Console::WriteLine();
Console::WriteLine();
}
static void IndicateNode(LinkedListNode<String^>^ node, String^ test)
{
Console::WriteLine(test);
if (node->List == nullptr)
{
Console::WriteLine("Node '{0}' is not in the list.\n",
node->Value);
return;
}
StringBuilder^ result = gcnew StringBuilder("(" + node->Value + ")");
LinkedListNode<String^>^ nodeP = node->Previous;
while (nodeP != nullptr)
{
result->Insert(0, nodeP->Value + " ");
nodeP = nodeP->Previous;
}
node = node->Next;
while (node != nullptr)
{
result->Append(" " + node->Value);
node = node->Next;
}
Console::WriteLine(result);
Console::WriteLine();
}
};
int main()
{
Example::Main();
}
//This code example produces the following output:
//
//The linked list values:
//the fox jumped over the dog
//Test 1: Add 'today' to beginning of the list:
//today the fox jumped over the dog
//Test 2: Move first node to be last node:
//the fox jumped over the dog today
//Test 3: Change the last node to 'yesterday':
//the fox jumped over the dog yesterday
//Test 4: Move last node to be first node:
//yesterday the fox jumped over the dog
//Test 5: Indicate last occurence of 'the':
//the fox jumped over (the) dog
//Test 6: Add 'lazy' and 'old' after 'the':
//the fox jumped over (the) lazy old dog
//Test 7: Indicate the 'fox' node:
//the (fox) jumped over the lazy old dog
//Test 8: Add 'quick' and 'brown' before 'fox':
//the quick brown (fox) jumped over the lazy old dog
//Test 9: Indicate the 'dog' node:
//the quick brown fox jumped over the lazy old (dog)
//Test 10: Throw exception by adding node (fox) already in the list:
//Exception message: The LinkedList node belongs a LinkedList.
//Test 11: Move a referenced node (fox) before the current node (dog):
//the quick brown jumped over the lazy old fox (dog)
//Test 12: Remove current node (dog) and attempt to indicate it:
//Node 'dog' is not in the list.
//Test 13: Add node removed in test 11 after a referenced node (brown):
//the quick brown (dog) jumped over the lazy old fox
//Test 14: Remove node that has the value 'old':
//the quick brown dog jumped over the lazy fox
//Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
//the quick brown dog jumped over the lazy rhinoceros
//Test 16: Copy the list to an array:
//the
//quick
//brown
//dog
//jumped
//over
//the
//lazy
//rhinoceros
//Test 17: Clear linked list. Contains 'jumped' = False
//
using System;
using System.Text;
using System.Collections.Generic;
public class Example
{
public static void Main()
{
// Create the link list.
string[] words =
{ "the", "fox", "jumped", "over", "the", "dog" };
LinkedList<string> sentence = new LinkedList<string>(words);
Display(sentence, "The linked list values:");
Console.WriteLine("sentence.Contains(\"jumped\") = {0}",
sentence.Contains("jumped"));
// Add the word 'today' to the beginning of the linked list.
sentence.AddFirst("today");
Display(sentence, "Test 1: Add 'today' to beginning of the list:");
// Move the first node to be the last node.
LinkedListNode<string> mark1 = sentence.First;
sentence.RemoveFirst();
sentence.AddLast(mark1);
Display(sentence, "Test 2: Move first node to be last node:");
// Change the last node be 'yesterday'.
sentence.RemoveLast();
sentence.AddLast("yesterday");
Display(sentence, "Test 3: Change the last node to 'yesterday':");
// Move the last node to be the first node.
mark1 = sentence.Last;
sentence.RemoveLast();
sentence.AddFirst(mark1);
Display(sentence, "Test 4: Move last node to be first node:");
// Indicate, by using parentheisis, the last occurence of 'the'.
sentence.RemoveFirst();
LinkedListNode<string> current = sentence.FindLast("the");
IndicateNode(current, "Test 5: Indicate last occurence of 'the':");
// Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
sentence.AddAfter(current, "old");
sentence.AddAfter(current, "lazy");
IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':");
// Indicate 'fox' node.
current = sentence.Find("fox");
IndicateNode(current, "Test 7: Indicate the 'fox' node:");
// Add 'quick' and 'brown' before 'fox':
sentence.AddBefore(current, "quick");
sentence.AddBefore(current, "brown");
IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':");
// Keep a reference to the current node, 'fox',
// and to the previous node in the list. Indicate the 'dog' node.
mark1 = current;
LinkedListNode<string> mark2 = current.Previous;
current = sentence.Find("dog");
IndicateNode(current, "Test 9: Indicate the 'dog' node:");
// The AddBefore method throws an InvalidOperationException
// if you try to add a node that already belongs to a list.
Console.WriteLine("Test 10: Throw exception by adding node (fox) already in the list:");
try
{
sentence.AddBefore(current, mark1);
}
catch (InvalidOperationException ex)
{
Console.WriteLine("Exception message: {0}", ex.Message);
}
Console.WriteLine();
// Remove the node referred to by mark1, and then add it
// before the node referred to by current.
// Indicate the node referred to by current.
sentence.Remove(mark1);
sentence.AddBefore(current, mark1);
IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):");
// Remove the node referred to by current.
sentence.Remove(current);
IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:");
// Add the node after the node referred to by mark2.
sentence.AddAfter(mark2, current);
IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):");
// The Remove method finds and removes the
// first node that that has the specified value.
sentence.Remove("old");
Display(sentence, "Test 14: Remove node that has the value 'old':");
// When the linked list is cast to ICollection(Of String),
// the Add method adds a node to the end of the list.
sentence.RemoveLast();
ICollection<string> icoll = sentence;
icoll.Add("rhinoceros");
Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':");
Console.WriteLine("Test 16: Copy the list to an array:");
// Create an array with the same number of
// elements as the inked list.
string[] sArray = new string[sentence.Count];
sentence.CopyTo(sArray, 0);
foreach (string s in sArray)
{
Console.WriteLine(s);
}
// Release all the nodes.
sentence.Clear();
Console.WriteLine();
Console.WriteLine("Test 17: Clear linked list. Contains 'jumped' = {0}",
sentence.Contains("jumped"));
Console.ReadLine();
}
private static void Display(LinkedList<string> words, string test)
{
Console.WriteLine(test);
foreach (string word in words)
{
Console.Write(word + " ");
}
Console.WriteLine();
Console.WriteLine();
}
private static void IndicateNode(LinkedListNode<string> node, string test)
{
Console.WriteLine(test);
if (node.List == null)
{
Console.WriteLine("Node '{0}' is not in the list.\n",
node.Value);
return;
}
StringBuilder result = new StringBuilder("(" + node.Value + ")");
LinkedListNode<string> nodeP = node.Previous;
while (nodeP != null)
{
result.Insert(0, nodeP.Value + " ");
nodeP = nodeP.Previous;
}
node = node.Next;
while (node != null)
{
result.Append(" " + node.Value);
node = node.Next;
}
Console.WriteLine(result);
Console.WriteLine();
}
}
//This code example produces the following output:
//
//The linked list values:
//the fox jumped over the dog
//Test 1: Add 'today' to beginning of the list:
//today the fox jumped over the dog
//Test 2: Move first node to be last node:
//the fox jumped over the dog today
//Test 3: Change the last node to 'yesterday':
//the fox jumped over the dog yesterday
//Test 4: Move last node to be first node:
//yesterday the fox jumped over the dog
//Test 5: Indicate last occurence of 'the':
//the fox jumped over (the) dog
//Test 6: Add 'lazy' and 'old' after 'the':
//the fox jumped over (the) lazy old dog
//Test 7: Indicate the 'fox' node:
//the (fox) jumped over the lazy old dog
//Test 8: Add 'quick' and 'brown' before 'fox':
//the quick brown (fox) jumped over the lazy old dog
//Test 9: Indicate the 'dog' node:
//the quick brown fox jumped over the lazy old (dog)
//Test 10: Throw exception by adding node (fox) already in the list:
//Exception message: The LinkedList node belongs a LinkedList.
//Test 11: Move a referenced node (fox) before the current node (dog):
//the quick brown jumped over the lazy old fox (dog)
//Test 12: Remove current node (dog) and attempt to indicate it:
//Node 'dog' is not in the list.
//Test 13: Add node removed in test 11 after a referenced node (brown):
//the quick brown (dog) jumped over the lazy old fox
//Test 14: Remove node that has the value 'old':
//the quick brown dog jumped over the lazy fox
//Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
//the quick brown dog jumped over the lazy rhinoceros
//Test 16: Copy the list to an array:
//the
//quick
//brown
//dog
//jumped
//over
//the
//lazy
//rhinoceros
//Test 17: Clear linked list. Contains 'jumped' = False
//
Imports System
Imports System.Text
Imports System.Collections.Generic
Public Class Example
Public Shared Sub Main()
' Create the link list.
Dim words() As String = {"the", "fox", _
"jumped", "over", "the", "dog"}
Dim sentence As New LinkedList(Of String)(words)
Console.WriteLine("sentence.Contains(""jumped"") = {0}", _
sentence.Contains("jumped"))
Display(sentence, "The linked list values:")
' Add the word 'today' to the beginning of the linked list.
sentence.AddFirst("today")
Display(sentence, "Test 1: Add 'today' to beginning of the list:")
' Move the first node to be the last node.
Dim mark1 As LinkedListNode(Of String) = sentence.First
sentence.RemoveFirst()
sentence.AddLast(mark1)
Display(sentence, "Test 2: Move first node to be last node:")
' Change the last node be 'yesterday'.
sentence.RemoveLast()
sentence.AddLast("yesterday")
Display(sentence, "Test 3: Change the last node to 'yesterday':")
' Move the last node to be the first node.
mark1 = sentence.Last
sentence.RemoveLast()
sentence.AddFirst(mark1)
Display(sentence, "Test 4: Move last node to be first node:")
' Indicate, by using parentheisis, the last occurence of 'the'.
sentence.RemoveFirst()
Dim current As LinkedListNode(Of String) = sentence.FindLast("the")
IndicateNode(current, "Test 5: Indicate last occurence of 'the':")
' Add 'lazy' and 'old' after 'the' (the LinkedListNode named current).
sentence.AddAfter(current, "old")
sentence.AddAfter(current, "lazy")
IndicateNode(current, "Test 6: Add 'lazy' and 'old' after 'the':")
' Indicate 'fox' node.
current = sentence.Find("fox")
IndicateNode(current, "Test 7: Indicate the 'fox' node:")
' Add 'quick' and 'brown' before 'fox':
sentence.AddBefore(current, "quick")
sentence.AddBefore(current, "brown")
IndicateNode(current, "Test 8: Add 'quick' and 'brown' before 'fox':")
' Keep a reference to the current node, 'fox',
' and to the previous node in the list. Indicate the 'dog' node.
mark1 = current
Dim mark2 As LinkedListNode(Of String) = current.Previous
current = sentence.Find("dog")
IndicateNode(current, "Test 9: Indicate the 'dog' node:")
' The AddBefore method throws an InvalidOperationException
' if you try to add a node that already belongs to a list.
Console.WriteLine("Test 10: Throw exception by adding node (fox) already in the list:")
Try
sentence.AddBefore(current, mark1)
Catch ex As InvalidOperationException
Console.WriteLine("Exception message: {0}", ex.Message)
End Try
Console.WriteLine()
' Remove the node referred to by mark1, and then add it
' before the node referred to by current.
' Indicate the node referred to by current.
sentence.Remove(mark1)
sentence.AddBefore(current, mark1)
IndicateNode(current, "Test 11: Move a referenced node (fox) before the current node (dog):")
' Remove the node referred to by current.
sentence.Remove(current)
IndicateNode(current, "Test 12: Remove current node (dog) and attempt to indicate it:")
' Add the node after the node referred to by mark2.
sentence.AddAfter(mark2, current)
IndicateNode(current, "Test 13: Add node removed in test 11 after a referenced node (brown):")
' The Remove method finds and removes the
' first node that that has the specified value.
sentence.Remove("old")
Display(sentence, "Test 14: Remove node that has the value 'old':")
' When the linked list is cast to ICollection(Of String),
' the Add method adds a node to the end of the list.
sentence.RemoveLast()
Dim icoll As ICollection(Of String) = sentence
icoll.Add("rhinoceros")
Display(sentence, "Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':")
Console.WriteLine("Test 16: Copy the list to an array:")
' Create an array with the same number of
' elements as the inked list.
Dim sArray() As String = New String((sentence.Count) - 1) {}
sentence.CopyTo(sArray, 0)
For Each s As String In sArray
Console.WriteLine(s)
Next
' Release all the nodes.
sentence.Clear()
Console.WriteLine()
Console.WriteLine("Test 17: Clear linked list. Contains 'jumped' = {0}", sentence.Contains("jumped"))
Console.ReadLine()
End Sub
Private Shared Sub Display(ByVal words As LinkedList(Of String), ByVal test As String)
Console.WriteLine(test)
For Each word As String In words
Console.Write((word + " "))
Next
Console.WriteLine()
Console.WriteLine()
End Sub
Private Shared Sub IndicateNode(ByVal node As LinkedListNode(Of String), ByVal test As String)
Console.WriteLine(test)
If IsNothing(node.List) Then
Console.WriteLine("Node '{0}' is not in the list." & vbLf, node.Value)
Return
End If
Dim result As StringBuilder = New StringBuilder(("(" _
+ (node.Value + ")")))
Dim nodeP As LinkedListNode(Of String) = node.Previous
While (Not (nodeP) Is Nothing)
result.Insert(0, (nodeP.Value + " "))
nodeP = nodeP.Previous
End While
node = node.Next
While (Not (node) Is Nothing)
result.Append((" " + node.Value))
node = node.Next
End While
Console.WriteLine(result)
Console.WriteLine()
End Sub
End Class
'This code example produces the following output:
'
'The linked list values:
'the fox jumped over the dog
'Test 1: Add 'today' to beginning of the list:
'today the fox jumped over the dog
'Test 2: Move first node to be last node:
'the fox jumped over the dog today
'Test 3: Change the last node to 'yesterday':
'the fox jumped over the dog yesterday
'Test 4: Move last node to be first node:
'yesterday the fox jumped over the dog
'Test 5: Indicate last occurence of 'the':
'the fox jumped over (the) dog
'Test 6: Add 'lazy' and 'old' after 'the':
'the fox jumped over (the) lazy old dog
'Test 7: Indicate the 'fox' node:
'the (fox) jumped over the lazy old dog
'Test 8: Add 'quick' and 'brown' before 'fox':
'the quick brown (fox) jumped over the lazy old dog
'Test 9: Indicate the 'dog' node:
'the quick brown fox jumped over the lazy old (dog)
'Test 10: Throw exception by adding node (fox) already in the list:
'Exception message: The LinkedList node belongs a LinkedList.
'Test 11: Move a referenced node (fox) before the current node (dog):
'the quick brown jumped over the lazy old fox (dog)
'Test 12: Remove current node (dog) and attempt to indicate it:
'Node 'dog' is not in the list.
'Test 13: Add node removed in test 11 after a referenced node (brown):
'the quick brown (dog) jumped over the lazy old fox
'Test 14: Remove node that has the value 'old':
'the quick brown dog jumped over the lazy fox
'Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
'the quick brown dog jumped over the lazy rhinoceros
'Test 16: Copy the list to an array:
'the
'quick
'brown
'dog
'jumped
'over
'the
'lazy
'rhinoceros
'Test 17: Clear linked list. Contains 'jumped' = False
'
Remarks
LinkedList<T> is a general-purpose linked list. It supports enumerators and implements the ICollection interface, consistent with other collection classes in the .NET Framework.
LinkedList<T> provides separate nodes of type LinkedListNode<T>, so insertion and removal are O(1) operations.
You can remove nodes and reinsert them, either in the same list or in another list, which results in no additional objects allocated on the heap. Because the list also maintains an internal count, getting the Count property is an O(1) operation.
Each node in a LinkedList<T> object is of the type LinkedListNode<T>. Because the LinkedList<T> is doubly linked, each node points forward to the Next node and backward to the Previous node.
Lists that contain reference types perform better when a node and its value are created at the same time. LinkedList<T> accepts null as a valid Value property for reference types and allows duplicate values.
If the LinkedList<T> is empty, the First and Last properties contain null.
The LinkedList<T> class does not support chaining, splitting, cycles, or other features that can leave the list in an inconsistent state. The list remains consistent on a single thread. The only multithreaded scenario supported by LinkedList<T> is multithreaded read operations.
Constructors
| LinkedList<T>() |
Initializes a new instance of the LinkedList<T> class that is empty. |
| LinkedList<T>(IEnumerable<T>) |
Initializes a new instance of the LinkedList<T> class that contains elements copied from the specified IEnumerable and has sufficient capacity to accommodate the number of elements copied. |
| LinkedList<T>(SerializationInfo, StreamingContext) |
Initializes a new instance of the LinkedList<T> class that is serializable with the specified SerializationInfo and StreamingContext. |
Properties
| Count |
Gets the number of nodes actually contained in the LinkedList<T>. |
| First |
Gets the first node of the LinkedList<T>. |
| Last |
Gets the last node of the LinkedList<T>. |
Methods
| AddAfter(LinkedListNode<T>, LinkedListNode<T>) |
Adds the specified new node after the specified existing node in the LinkedList<T>. |
| AddAfter(LinkedListNode<T>, T) |
Adds a new node containing the specified value after the specified existing node in the LinkedList<T>. |
| AddBefore(LinkedListNode<T>, LinkedListNode<T>) |
Adds the specified new node before the specified existing node in the LinkedList<T>. |
| AddBefore(LinkedListNode<T>, T) |
Adds a new node containing the specified value before the specified existing node in the LinkedList<T>. |
| 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>. |
| AddLast(LinkedListNode<T>) |
Adds the specified new node at the end of the LinkedList<T>. |
| AddLast(T) |
Adds a new node containing the specified value at the end of the LinkedList<T>. |
| Clear() |
Removes all nodes from the LinkedList<T>. |
| Contains(T) |
Determines whether a value is in the LinkedList<T>. |
| CopyTo(T[], Int32) |
Copies the entire LinkedList<T> to a compatible one-dimensional Array, starting at the specified index of the target array. |
| Find(T) |
Finds the first node that contains the specified value. |
| FindLast(T) |
Finds the last node that contains the specified value. |
| GetEnumerator() |
Returns an enumerator that iterates through the LinkedList<T>. |
| GetObjectData(SerializationInfo, StreamingContext) |
Implements the ISerializable interface and returns the data needed to serialize the LinkedList<T> instance. |
| OnDeserialization(Object) |
Implements the ISerializable interface and raises the deserialization event when the deserialization is complete. |
| Remove(LinkedListNode<T>) |
Removes the specified node from the LinkedList<T>. |
| Remove(T) |
Removes the first occurrence of the specified value from the LinkedList<T>. |
| RemoveFirst() |
Removes the node at the start of the LinkedList<T>. |
| RemoveLast() |
Removes the node at the end of the LinkedList<T>. |
Explicit Interface Implementations
| ICollection<T>.Add(T) |
Adds an item at the end of the ICollection<T>. |
| ICollection<T>.IsReadOnly |
Gets a value indicating whether the ICollection<T> is read-only. |
| IEnumerable<T>.GetEnumerator() |
Returns an enumerator that iterates through a collection. |
| ICollection.CopyTo(Array, Int32) |
Copies the elements of the ICollection to an Array, starting at a particular Array index. |
| ICollection.IsSynchronized |
Gets a value indicating whether access to the ICollection is synchronized (thread safe). |
| ICollection.SyncRoot |
Gets an object that can be used to synchronize access to the ICollection. |
| IEnumerable.GetEnumerator() |
Returns an enumerator that iterates through the linked list as a collection. |
Extension Methods
Thread Safety
This type is not thread safe. If the LinkedList<T> needs to be accessed by multiple threads, you will need to implement their own synchronization mechanism.
A LinkedList<T> can support multiple readers concurrently, as long as the collection is not modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure. In the rare case where an enumeration contends with write accesses, the collection must be locked during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.