Cliquez pour évaluer et commenter
MSDN
MSDN Library
Développement .NET
Versions précédentes
.NET Framework SDK 2.0
Class Library Reference
System.Collections
Queue, classe
Méthodes Queue
 CopyTo, méthode

  Passer à l'affichage pour faible bande passante
Cette page est spécifique à
Microsoft Visual Studio 2005/.NET Framework 2.0

D'autres versions sont également disponibles pour :
Bibliothèque de classes .NET Framework
Queue.CopyTo, méthode

Copie les éléments Queue dans un Array existant à une dimension commençant au niveau de l'index de tableau spécifié.

Espace de noms : System.Collections
Assembly : mscorlib (dans mscorlib.dll)

Visual Basic (Déclaration)
Public Overridable Sub CopyTo ( _
    array As Array, _
    index As Integer _
)
Visual Basic (Utilisation)
Dim instance As Queue
Dim array As Array
Dim index As Integer

instance.CopyTo(array, index)
C#
public virtual void CopyTo (
    Array array,
    int index
)
C++
public:
virtual void CopyTo (
    Array^ array, 
    int index
)
J#
public void CopyTo (
    Array array, 
    int index
)
JScript
public function CopyTo (
    array : Array, 
    index : int
)

Paramètres

array

Array unidimensionnel qui constitue la destination des éléments copiés à partir de Queue. Array doit avoir une indexation de base zéro.

index

Index de base zéro dans array au niveau duquel commencer la copie.

Type d'exceptionCondition

ArgumentNullException

array est référence Null (Nothing en Visual Basic).

ArgumentOutOfRangeException

index est inférieur à zéro.

ArgumentException

array est multidimensionnel.

- ou -

index est supérieur ou égal à la longueur de array.

- ou -

Le nombre d'éléments dans le Queue source est supérieur à la quantité d'espace disponible entre index et la fin du array de destination.

ArrayTypeMismatchException

Le cast automatique du type du Queue source en type du array de destination est impossible.

Les éléments sont copiés dans Array dans l'ordre dans lequel l'énumérateur parcourt Queue.

Cette méthode est une opération O(n), où n est égal à Count.

L'exemple suivant montre comment copier Queue dans un tableau unidimensionnel.

Visual Basic
Imports System
Imports System.Collections
Imports Microsoft.VisualBasic

Public Class SamplesQueue    

    Public Shared Sub Main()

        ' Creates and initializes the source Queue.
        Dim mySourceQ As New Queue()
        mySourceQ.Enqueue("three")
        mySourceQ.Enqueue("napping")
        mySourceQ.Enqueue("cats")
        mySourceQ.Enqueue("in")
        mySourceQ.Enqueue("the")
        mySourceQ.Enqueue("barn")

        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray As Array = Array.CreateInstance(GetType(String), 15)
        myTargetArray.SetValue("The", 0)
        myTargetArray.SetValue("quick", 1)
        myTargetArray.SetValue("brown", 2)
        myTargetArray.SetValue("fox", 3)
        myTargetArray.SetValue("jumped", 4)
        myTargetArray.SetValue("over", 5)
        myTargetArray.SetValue("the", 6)
        myTargetArray.SetValue("lazy", 7)
        myTargetArray.SetValue("dog", 8)

        ' Displays the values of the target Array.
        Console.WriteLine("The target Array contains the " & _
           "following (before and after copying):")
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source Queue to the target Array, starting
        ' at index 6.
        mySourceQ.CopyTo(myTargetArray, 6)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source Queue to a new standard array.
        Dim myStandardArray As Object() = mySourceQ.ToArray()

        ' Displays the values of the new standard array.
        Console.WriteLine("The new standard array contains the following:")
        PrintValues(myStandardArray, " "c)

    End Sub

    Public Shared Sub PrintValues(myArr As Array, mySeparator As Char)
        Dim myObj As [Object]
        For Each myObj In  myArr
            Console.Write("{0}{1}", mySeparator, myObj)
        Next myObj
        Console.WriteLine()
    End Sub 'PrintValues

End Class 'SamplesQueue


' This code produces the following output.
' 
' The target Array contains the following (before and after copying):
'  The quick brown fox jumped over the lazy dog
'  The quick brown fox jumped over three napping cats in the barn
' The new standard array contains the following:
'  three napping cats in the barn

C#
using System;
using System.Collections;
public class SamplesQueue  {

   public static void Main()  {

      // Creates and initializes the source Queue.
      Queue mySourceQ = new Queue();
      mySourceQ.Enqueue( "three" );
      mySourceQ.Enqueue( "napping" );
      mySourceQ.Enqueue( "cats" );
      mySourceQ.Enqueue( "in" );
      mySourceQ.Enqueue( "the" );
      mySourceQ.Enqueue( "barn" );

      // Creates and initializes the one-dimensional target Array.
      Array myTargetArray=Array.CreateInstance( typeof(String), 15 );
      myTargetArray.SetValue( "The", 0 );
      myTargetArray.SetValue( "quick", 1 );
      myTargetArray.SetValue( "brown", 2 );
      myTargetArray.SetValue( "fox", 3 );
      myTargetArray.SetValue( "jumped", 4 );
      myTargetArray.SetValue( "over", 5 );
      myTargetArray.SetValue( "the", 6 );
      myTargetArray.SetValue( "lazy", 7 );
      myTargetArray.SetValue( "dog", 8 );

      // Displays the values of the target Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source Queue to the target Array, starting at index 6.
      mySourceQ.CopyTo( myTargetArray, 6 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source Queue to a new standard array.
      Object[] myStandardArray = mySourceQ.ToArray();

      // Displays the values of the new standard array.
      Console.WriteLine( "The new standard array contains the following:" );
      PrintValues( myStandardArray, ' ' );
   }


   public static void PrintValues( Array myArr, char mySeparator )  {
      foreach ( Object myObj in myArr )  {
         Console.Write( "{0}{1}", mySeparator, myObj );
      }
      Console.WriteLine();
   }
}
/* 
This code produces the following output.

The target Array contains the following (before and after copying):
 The quick brown fox jumped over the lazy dog
 The quick brown fox jumped over three napping cats in the barn
The new standard array contains the following:
 three napping cats in the barn

*/ 
C++
using namespace System;
using namespace System::Collections;
void PrintValues( Array^ myArr, char mySeparator );
int main()
{
   // Creates and initializes the source Queue.
   Queue^ mySourceQ = gcnew Queue;
   mySourceQ->Enqueue( "three" );
   mySourceQ->Enqueue( "napping" );
   mySourceQ->Enqueue( "cats" );
   mySourceQ->Enqueue( "in" );
   mySourceQ->Enqueue( "the" );
   mySourceQ->Enqueue( "barn" );

   // Creates and initializes the one-dimensional target Array.
   Array^ myTargetArray = Array::CreateInstance( String::typeid, 15 );
   myTargetArray->SetValue( "The", 0 );
   myTargetArray->SetValue( "quick", 1 );
   myTargetArray->SetValue( "brown", 2 );
   myTargetArray->SetValue( "fox", 3 );
   myTargetArray->SetValue( "jumped", 4 );
   myTargetArray->SetValue( "over", 5 );
   myTargetArray->SetValue( "the", 6 );
   myTargetArray->SetValue( "lazy", 7 );
   myTargetArray->SetValue( "dog", 8 );

   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );

   // Copies the entire source Queue to the target Array, starting at index 6.
   mySourceQ->CopyTo( myTargetArray, 6 );

   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );

   // Copies the entire source Queue to a new standard array.
   array<Object^>^myStandardArray = mySourceQ->ToArray();

   // Displays the values of the new standard array.
   Console::WriteLine( "The new standard array contains the following:" );
   PrintValues( myStandardArray, ' ' );
}

void PrintValues( Array^ myArr, char mySeparator )
{
   IEnumerator^ myEnum = myArr->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Object^ myObj = safe_cast<Object^>(myEnum->Current);
      Console::Write( "{0}{1}", mySeparator, myObj );
   }

   Console::WriteLine();
}

/* 
 This code produces the following output.
 
 The target Array contains the following (before and after copying):
  The quick brown fox jumped over the lazy dog
  The quick brown fox jumped over three napping cats in the barn
 The new standard array contains the following:
  three napping cats in the barn

 */
J#
import System.*;
import System.Collections.*;

public class SamplesQueue
{
    public static void main(String[] args)
    {
        // Creates and initializes the source Queue.
        Queue mySourceQ =  new Queue();
        mySourceQ.Enqueue("three");
        mySourceQ.Enqueue("napping");
        mySourceQ.Enqueue("cats");
        mySourceQ.Enqueue("in");
        mySourceQ.Enqueue("the");
        mySourceQ.Enqueue("barn");

        // Creates and initializes the one-dimensional target Array.
        Array myTargetArray = Array.CreateInstance(String.class.ToType(), 15);
        myTargetArray.SetValue("The", 0);
        myTargetArray.SetValue("quick", 1);
        myTargetArray.SetValue("brown", 2);
        myTargetArray.SetValue("fox", 3);
        myTargetArray.SetValue("jumped", 4);
        myTargetArray.SetValue("over", 5);
        myTargetArray.SetValue("the", 6);
        myTargetArray.SetValue("lazy", 7);
        myTargetArray.SetValue("dog", 8);

        // Displays the values of the target Array.
        Console.WriteLine("The target Array contains the following" 
            + " (before and after copying):");
        PrintValues(myTargetArray, ' ');

        // Copies the entire source Queue to the target Array,
        // starting at index 6.
        mySourceQ.CopyTo(myTargetArray, 6);

        // Displays the values of the target Array.
        PrintValues(myTargetArray, ' ');

        // Copies the entire source Queue to a new standard array.
        Object myStandardArray[] = mySourceQ.ToArray();

        // Displays the values of the new standard array.
        Console.WriteLine("The new standard array contains the following:");
        PrintValues(myStandardArray, ' ');
    } //main

    public static void PrintValues(Array myArr, char mySeparator)
    {
        IEnumerator e = myArr.GetEnumerator();
        while(e.MoveNext()) {
            Object myObj = e.get_Current(); 
            Console.Write("{0}{1}", System.Convert.ToString(mySeparator),
                System.Convert.ToString( myObj));
        }
        Console.WriteLine();
    } //PrintValues
} //SamplesQueue

/* 
 This code produces the following output.
 
 The target Array contains the following (before and after copying):
  The quick brown fox jumped over the lazy dog
  The quick brown fox jumped over three napping cats in the barn
 The new standard array contains the following:
  three napping cats in the barn
 */

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile pour Pocket PC, Windows Mobile pour Smartphone, Windows Server 2003, Windows XP Édition Media Center, Windows XP Professionnel Édition x64, Windows XP SP2, Windows XP Starter Edition

Le .NET Framework ne prend pas en charge toutes les versions de chaque plate-forme. Pour obtenir la liste des versions prises en charge, consultez Configuration requise.

.NET Framework

Prise en charge dans : 2.0, 1.1, 1.0

.NET Compact Framework

Prise en charge dans : 2.0, 1.0
Contenu de la communauté   Qu'est-ce que le Contenu de la communauté ?
Ajouter du contenu RSS  Annotations
Processing
© 2009 Microsoft Corporation. Tous droits réservés. Conditions d'utilisation  |  Marques  |  Confidentialité
Page view tracker