ArrayList.CopyTo ArrayList.CopyTo ArrayList.CopyTo Method

Definizione

Copia ArrayList o una parte di esso in una matrice unidimensionale.Copies the ArrayList or a portion of it to a one-dimensional array.

Overload

CopyTo(Array) CopyTo(Array) CopyTo(Array)

Copia l'intero oggetto ArrayList in un oggetto Array unidimensionale compatibile, a partire dall'inizio della matrice di destinazione.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the beginning of the target array.

CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32)

Copia l'intero oggetto ArrayList in un oggetto Array compatibile unidimensionale, a partire dall'indice specificato della matrice di destinazione.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

CopyTo(Int32, Array, Int32, Int32) CopyTo(Int32, Array, Int32, Int32) CopyTo(Int32, Array, Int32, Int32)

Copia una serie di elementi da ArrayList in un oggetto Array compatibile unidimensionale, a partire dall'indice specificato della matrice di destinazione.Copies a range of elements from the ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

CopyTo(Array) CopyTo(Array) CopyTo(Array)

Copia l'intero oggetto ArrayList in un oggetto Array unidimensionale compatibile, a partire dall'inizio della matrice di destinazione.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the beginning of the target array.

public:
 virtual void CopyTo(Array ^ array);
public virtual void CopyTo (Array array);
abstract member CopyTo : Array -> unit
override this.CopyTo : Array -> unit

Parametri

array
Array Array Array

Oggetto Array unidimensionale che rappresenta la destinazione degli elementi copiati dall'oggetto ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. L'indicizzazione di Array deve essere in base zero.The Array must have zero-based indexing.

Eccezioni

array è multidimensionale.array is multidimensional.

-oppure--or- Il numero di elementi nell'oggetto ArrayList di origine è maggiore del numero di elementi che l'oggetto array di destinazione può contenere.The number of elements in the source ArrayList is greater than the number of elements that the destination array can contain.

Non è possibile eseguire il cast automatico del tipo dell'oggetto ArrayList di origine al tipo dell'oggetto array di destinazione.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Esempi

Nell'esempio di codice seguente viene illustrato come copiare ArrayList un oggetto in un oggetto System.Arrayunidimensionale.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target ArrayList starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target ArrayList starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target ArrayList starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   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 the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn
 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

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

      // Copies the second element from the source ArrayList to the target Array starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

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

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

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

      // Copies the entire source ArrayList to the target Array starting at index 0.
      mySourceList.CopyTo( myTargetArray );

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

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      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 the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn
*/ 

Imports System.Collections

Public Class SamplesArrayList    
    
    Public Shared Sub Main()
        
        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")
        
        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"
        
        ' Displays the values of the target Array.
        Console.WriteLine("The target Array contains the following " _
           + "(before and after copying):")
        PrintValues(myTargetArray, " "c)
        
        ' Copies the second element from the source ArrayList to the target
        ' Array starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
        
        ' Copies the entire source ArrayList to the target Array starting
        ' at index 6.
        mySourceList.CopyTo(myTargetArray, 6)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
        
        ' Copies the entire source ArrayList to the target Array starting
        ' at index 0.
        mySourceList.CopyTo(myTargetArray)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
    End Sub    
    
    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        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 the napping dog      
'  The quick brown fox jumps over three napping cats in the barn   
'  three napping cats in the barn three napping cats in the barn

Commenti

La matrice specificata deve essere di un tipo compatibile.The specified array must be of a compatible type.

Questo metodo usa Array.Copy per copiare gli elementi.This method uses Array.Copy to copy the elements.

Gli elementi vengono copiati nell' Array oggetto nello stesso ordine in cui l'enumeratore scorre. ArrayListThe elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Questo metodo è un'operazione On(), dove n è Count.This method is an O(n) operation, where n is Count.

CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32)

Copia l'intero oggetto ArrayList in un oggetto Array compatibile unidimensionale, a partire dall'indice specificato della matrice di destinazione.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

public:
 virtual void CopyTo(Array ^ array, int arrayIndex);
public virtual void CopyTo (Array array, int arrayIndex);
abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Parametri

array
Array Array Array

Oggetto Array unidimensionale che rappresenta la destinazione degli elementi copiati dall'oggetto ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. L'indicizzazione di Array deve essere in base zero.The Array must have zero-based indexing.

arrayIndex
Int32 Int32 Int32

Indice in base zero in array in corrispondenza del quale viene avviata la copia.The zero-based index in array at which copying begins.

Implementazioni

Eccezioni

arrayIndex è minore di zero.arrayIndex is less than zero.

array è multidimensionale.array is multidimensional.

-oppure--or- Il numero di elementi nell'oggetto ArrayList di origine è maggiore dello spazio disponibile tra arrayIndex e la fine dell'oggetto array di destinazione.The number of elements in the source ArrayList is greater than the available space from arrayIndex to the end of the destination array.

Non è possibile eseguire il cast automatico del tipo dell'oggetto ArrayList di origine al tipo dell'oggetto array di destinazione.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Esempi

Nell'esempio di codice seguente viene illustrato come copiare ArrayList un oggetto in un oggetto System.Arrayunidimensionale.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target Array, starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   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 the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn

 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

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

      // Copies the second element from the source ArrayList to the target Array, starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

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

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

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

      // Copies the entire source ArrayList to the target Array, starting at index 0.
      mySourceList.CopyTo( myTargetArray );

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

   }

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      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 the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn

*/ 
Imports System.Collections

Public Class SamplesArrayList

    Public Shared Sub Main()

        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")

        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"

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

        ' Copies the second element from the source ArrayList to the target Array, starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)

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

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

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

        ' Copies the entire source ArrayList to the target Array, starting at index 0.
        mySourceList.CopyTo(myTargetArray)

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

    End Sub

    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        Console.WriteLine()
    End Sub

End Class 'SamplesArrayList 


' 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 the napping dog
'  The quick brown fox jumps over three napping cats in the barn
'  three napping cats in the barn three napping cats in the barn

Commenti

La matrice specificata deve essere di un tipo compatibile.The specified array must be of a compatible type.

Questo metodo usa Array.Copy per copiare gli elementi.This method uses Array.Copy to copy the elements.

Gli elementi vengono copiati nell' Array oggetto nello stesso ordine in cui l'enumeratore scorre. ArrayListThe elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Questo metodo è un'operazione On(), dove n è Count.This method is an O(n) operation, where n is Count.

CopyTo(Int32, Array, Int32, Int32) CopyTo(Int32, Array, Int32, Int32) CopyTo(Int32, Array, Int32, Int32)

Copia una serie di elementi da ArrayList in un oggetto Array compatibile unidimensionale, a partire dall'indice specificato della matrice di destinazione.Copies a range of elements from the ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

public:
 virtual void CopyTo(int index, Array ^ array, int arrayIndex, int count);
public virtual void CopyTo (int index, Array array, int arrayIndex, int count);
abstract member CopyTo : int * Array * int * int -> unit
override this.CopyTo : int * Array * int * int -> unit

Parametri

index
Int32 Int32 Int32

Indice in base zero dell'oggetto ArrayList di origine a partire dal quale viene effettuata la copia.The zero-based index in the source ArrayList at which copying begins.

array
Array Array Array

Oggetto Array unidimensionale che rappresenta la destinazione degli elementi copiati dall'oggetto ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. L'indicizzazione di Array deve essere in base zero.The Array must have zero-based indexing.

arrayIndex
Int32 Int32 Int32

Indice in base zero in array in corrispondenza del quale viene avviata la copia.The zero-based index in array at which copying begins.

count
Int32 Int32 Int32

Numero degli elementi da copiare.The number of elements to copy.

Eccezioni

index è minore di zero.index is less than zero.

In alternativa-or- arrayIndex è minore di zero.arrayIndex is less than zero.

-oppure--or- count è minore di zero.count is less than zero.

array è multidimensionale.array is multidimensional.

-oppure--or- index è maggiore o uguale al valore di Count dell'oggetto ArrayListdi origine.index is equal to or greater than the Count of the source ArrayList.

-oppure--or- Il numero di elementi da index alla fine dell'oggetto ArrayList di origine è maggiore dello spazio disponibile da arrayIndex alla fine dell'oggetto array di destinazione.The number of elements from index to the end of the source ArrayList is greater than the available space from arrayIndex to the end of the destination array.

Non è possibile eseguire il cast automatico del tipo dell'oggetto ArrayList di origine al tipo dell'oggetto array di destinazione.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Esempi

Nell'esempio di codice seguente viene illustrato come copiare ArrayList un oggetto in un oggetto System.Arrayunidimensionale.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target Array, starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   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 the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn

 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

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

      // Copies the second element from the source ArrayList to the target Array, starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

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

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

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

      // Copies the entire source ArrayList to the target Array, starting at index 0.
      mySourceList.CopyTo( myTargetArray );

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

   }

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      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 the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn

*/ 
Imports System.Collections

Public Class SamplesArrayList

    Public Shared Sub Main()

        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")

        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"

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

        ' Copies the second element from the source ArrayList to the target Array, starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)

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

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

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

        ' Copies the entire source ArrayList to the target Array, starting at index 0.
        mySourceList.CopyTo(myTargetArray)

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

    End Sub

    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        Console.WriteLine()
    End Sub

End Class 'SamplesArrayList 


' 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 the napping dog
'  The quick brown fox jumps over three napping cats in the barn
'  three napping cats in the barn three napping cats in the barn

Commenti

La matrice specificata deve essere di un tipo compatibile.The specified array must be of a compatible type.

Questo metodo usa Array.Copy per copiare gli elementi.This method uses Array.Copy to copy the elements.

Gli elementi vengono copiati nell' Array oggetto nello stesso ordine in cui l'enumeratore scorre. ArrayListThe elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Questo metodo è un'operazione On(), dove n è count.This method is an O(n) operation, where n is count.

Si applica a