LinkedListNode<T> Clase

Definición

Espacio de nombres:

System.Collections.Generic

Ensamblado:

System.Collections.dll

Source:

LinkedList.cs

Representa un nodo en una clase LinkedList<T>. Esta clase no puede heredarse.

generic <typename T>
public ref class LinkedListNode sealed

public sealed class LinkedListNode<T>

type LinkedListNode<'T> = class

Public NotInheritable Class LinkedListNode(Of T)

Parámetros de tipo

T

Especifica el tipo de elemento de la lista vinculada.

Herencia

Object

LinkedListNode<T>

Ejemplos

En el ejemplo de código siguiente se crea un LinkedListNode<T>, se agrega a y LinkedList<T>se realiza un seguimiento de los valores de sus propiedades a medida que cambian LinkedList<T> .

#using <System.dll>

using namespace System;
using namespace System::Collections::Generic;

public ref class GenericCollection  {

public:
   static void Main()  {

      // Create a new LinkedListNode of type String and displays its properties.
      LinkedListNode<String^>^ lln = gcnew LinkedListNode<String^>( "orange" );
      Console::WriteLine( "After creating the node ...." );
      DisplayProperties( lln );

      // Create a new LinkedList.
      LinkedList<String^>^ ll = gcnew LinkedList<String^>();

      // Add the "orange" node and display its properties.
      ll->AddLast( lln );
      Console::WriteLine( "After adding the node to the empty LinkedList ...." );
      DisplayProperties( lln );

      // Add nodes before and after the "orange" node and display the "orange" node's properties.
      ll->AddFirst( "red" );
      ll->AddLast( "yellow" );
      Console::WriteLine( "After adding red and yellow ...." );
      DisplayProperties( lln );

   }

   static void DisplayProperties( LinkedListNode<String^>^ lln )  {
      if ( lln->List == nullptr )
         Console::WriteLine( "   Node is not linked." );
      else
         Console::WriteLine( "   Node belongs to a linked list with {0} elements.", lln->List->Count );

      if ( lln->Previous == nullptr )
         Console::WriteLine( "   Previous node is null." );
      else
         Console::WriteLine( "   Value of previous node: {0}", lln->Previous->Value );

      Console::WriteLine( "   Value of current node:  {0}", lln->Value );

      if ( lln->Next == nullptr )
         Console::WriteLine( "   Next node is null." );
      else
         Console::WriteLine( "   Value of next node:     {0}", lln->Next->Value );

      Console::WriteLine();
   }

};

int main()
{
    GenericCollection::Main();
}

/*

This code produces the following output.

After creating the node ....
   Node is not linked.
   Previous node is null.
   Value of current node:  orange
   Next node is null.

After adding the node to the empty LinkedList ....
   Node belongs to a linked list with 1 elements.
   Previous node is null.
   Value of current node:  orange
   Next node is null.

After adding red and yellow ....
   Node belongs to a linked list with 3 elements.
   Value of previous node: red
   Value of current node:  orange
   Value of next node:     yellow

*/

using System;
using System.Collections.Generic;

public class GenericCollection  {

   public static void Main()  {

      // Create a new LinkedListNode of type String and displays its properties.
      LinkedListNode<String> lln = new LinkedListNode<String>( "orange" );
      Console.WriteLine( "After creating the node ...." );
      DisplayProperties( lln );

      // Create a new LinkedList.
      LinkedList<String> ll = new LinkedList<String>();

      // Add the "orange" node and display its properties.
      ll.AddLast( lln );
      Console.WriteLine( "After adding the node to the empty LinkedList ...." );
      DisplayProperties( lln );

      // Add nodes before and after the "orange" node and display the "orange" node's properties.
      ll.AddFirst( "red" );
      ll.AddLast( "yellow" );
      Console.WriteLine( "After adding red and yellow ...." );
      DisplayProperties( lln );
   }

   public static void DisplayProperties( LinkedListNode<String> lln )  {
      if ( lln.List == null )
         Console.WriteLine( "   Node is not linked." );
      else
         Console.WriteLine( "   Node belongs to a linked list with {0} elements.", lln.List.Count );

      if ( lln.Previous == null )
         Console.WriteLine( "   Previous node is null." );
      else
         Console.WriteLine( "   Value of previous node: {0}", lln.Previous.Value );

      Console.WriteLine( "   Value of current node:  {0}", lln.Value );

      if ( lln.Next == null )
         Console.WriteLine( "   Next node is null." );
      else
         Console.WriteLine( "   Value of next node:     {0}", lln.Next.Value );

      Console.WriteLine();
   }
}


/*

This code produces the following output.

After creating the node ....
   Node is not linked.
   Previous node is null.
   Value of current node:  orange
   Next node is null.

After adding the node to the empty LinkedList ....
   Node belongs to a linked list with 1 elements.
   Previous node is null.
   Value of current node:  orange
   Next node is null.

After adding red and yellow ....
   Node belongs to a linked list with 3 elements.
   Value of previous node: red
   Value of current node:  orange
   Value of next node:     yellow

*/

Imports System.Collections.Generic

Public Class GenericCollection

    Public Shared Sub Main()

        ' Create a new LinkedListNode of type String and displays its properties.
        Dim lln As New LinkedListNode(Of String)("orange")
        Console.WriteLine("After creating the node ....")
        DisplayProperties(lln)

        ' Create a new LinkedList.
        Dim ll As New LinkedList(Of String)

        ' Add the "orange" node and display its properties.
        ll.AddLast(lln)
        Console.WriteLine("After adding the node to the empty LinkedList ....")
        DisplayProperties(lln)

        ' Add nodes before and after the "orange" node and display the "orange" node's properties.
        ll.AddFirst("red")
        ll.AddLast("yellow")
        Console.WriteLine("After adding red and yellow ....")
        DisplayProperties(lln)

    End Sub

    Public Shared Sub DisplayProperties(lln As LinkedListNode(Of String))

        If lln.List Is Nothing Then
            Console.WriteLine("   Node is not linked.")
        Else
            Console.WriteLine("   Node belongs to a linked list with {0} elements.", lln.List.Count)
        End If 

        If lln.Previous Is Nothing Then
            Console.WriteLine("   Previous node is null.")
        Else
            Console.WriteLine("   Value of previous node: {0}", lln.Previous.Value)
        End If 

        Console.WriteLine("   Value of current node:  {0}", lln.Value)
        
        If lln.Next Is Nothing Then
            Console.WriteLine("   Next node is null.")
        Else
            Console.WriteLine("   Value of next node:     {0}", lln.Next.Value)
        End If 

        Console.WriteLine()

    End Sub

End Class


'This code produces the following output.
'
'After creating the node ....
'   Node is not linked.
'   Previous node is null.
'   Value of current node:  orange
'   Next node is null.
'
'After adding the node to the empty LinkedList ....
'   Node belongs to a linked list with 1 elements.
'   Previous node is null.
'   Value of current node:  orange
'   Next node is null.
'
'After adding red and yellow ....
'   Node belongs to a linked list with 3 elements.
'   Value of previous node: red
'   Value of current node:  orange
'   Value of next node:     yellow

Comentarios

Cada elemento de la LinkedList<T> colección es .LinkedListNode<T> LinkedListNode<T> contiene un valor, una referencia a la clase a la LinkedList<T> que pertenece, una referencia al nodo siguiente y una referencia al nodo anterior.

Constructores

LinkedListNode<T>(T)

Inicializa una nueva instancia de la clase LinkedListNode<T> que contiene el valor especificado.

Propiedades

List	Obtiene la colección LinkedList<T> a la que pertenece el objeto LinkedListNode<T>.
Next	Obtiene el siguiente nodo de la colección LinkedList<T>.
Previous	Obtiene el anterior nodo de la colección LinkedList<T>.
Value	Obtiene el valor que contiene el nodo.
ValueRef	Obtiene una referencia al valor mantenido por el nodo.

Métodos

Equals(Object)	Determina si el objeto especificado es igual que el objeto actual. (Heredado de Object)
GetHashCode()	Sirve como la función hash predeterminada. (Heredado de Object)
GetType()	Obtiene el Type de la instancia actual. (Heredado de Object)
MemberwiseClone()	Crea una copia superficial del Object actual. (Heredado de Object)
ToString()	Devuelve una cadena que representa el objeto actual. (Heredado de Object)