Stack.CopyTo(Array, Int32) Método

Definición

Espacio de nombres:

System.Collections

Ensamblado:

System.Collections.NonGeneric.dll

Source:

Stack.cs

Copia el Stack a un Array unidimensional existente, empezando por el índice especificado de la matriz.

public:
 virtual void CopyTo(Array ^ array, int index);

public virtual void CopyTo (Array array, int index);

abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Public Overridable Sub CopyTo (array As Array, index As Integer)

Parámetros

array

Array

Array unidimensional que constituye el destino de los elementos copiados de Stack. La matriz Array debe tener una indización de base cero.

index

Int32

Índice de base cero en la array donde comienza la copia.

Implementaciones

CopyTo(Array, Int32)

Excepciones

ArgumentNullException

array es null.

ArgumentOutOfRangeException

index es menor que cero.

ArgumentException

array es multidimensional.

O bien

El número de elementos de la Stack de origen es mayor que el espacio disponible desde index hasta el final de la array de destino.

InvalidCastException

El tipo de la Stack de origen no puede convertirse automáticamente al tipo de la array de destino.

Ejemplos

En el ejemplo siguiente se muestra cómo copiar un objeto Stack en una matriz unidimensional.

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

   // 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( "jumps", 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 Stack 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 Stack 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 jumps over the lazy dog      
  The quick brown fox jumps over three napping cats in the barn   
 The new standard array contains the following:
  three napping cats in the barn
 */

using System;
using System.Collections;
public class SamplesStack  {

   public static void Main()  {

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

      // 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( "jumps", 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 Stack 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 Stack 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 jumps over the lazy dog
 The quick brown fox jumps over three napping cats in the barn
The new standard array contains the following:
 three napping cats in the barn
*/

Imports System.Collections

Public Class SamplesStack    
    
    Public Shared Sub Main()
        
        ' Creates and initializes the source Stack.
        Dim mySourceQ As New Stack()
        mySourceQ.Push("barn")
        mySourceQ.Push("the")
        mySourceQ.Push("in")
        mySourceQ.Push("cats")
        mySourceQ.Push("napping")
        mySourceQ.Push("three")
        
        ' 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("jumps", 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 Stack 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 Stack 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    
    
    Overloads 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

End Class


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

Comentarios

Los elementos se copian en la matriz en el orden último en salir (LIFO), similar al orden de los elementos devueltos por una sucesión de llamadas a Pop.

Este método es una O(n) operación, donde n es Count.

Consulte también

• ToArray()