Array.CopyTo Array.CopyTo Array.CopyTo Method

Definition

Copies all the elements of the current one-dimensional array to the specified one-dimensional array.

Overloads

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

Copies all the elements of the current one-dimensional array to the specified one-dimensional array starting at the specified destination array index. The index is specified as a 32-bit integer.

CopyTo(Array, Int64) CopyTo(Array, Int64) CopyTo(Array, Int64)

Copies all the elements of the current one-dimensional array to the specified one-dimensional array starting at the specified destination array index. The index is specified as a 64-bit integer.

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

Copies all the elements of the current one-dimensional array to the specified one-dimensional array starting at the specified destination array index. The index is specified as a 32-bit integer.

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

Parameters

array
Array Array Array

The one-dimensional array that is the destination of the elements copied from the current array.

index
Int32 Int32 Int32

A 32-bit integer that represents the index in array at which copying begins.

Implements

Exceptions

array is multidimensional.

-or-

The number of elements in the source array is greater than the available number of elements from index to the end of the destination array.

The type of the source Array cannot be cast automatically to the type of the destination array.

The source array is multidimensional.

At least one element in the source Array cannot be cast to the type of destination array.

Examples

The following code example shows how to copy an Array to another Array.

using namespace System;
void main1();
void main2();
void main()
{
   main1();
   Console::WriteLine();
   main2();
}

void PrintValues( Array^ myArr );
void main1()
{
   // Creates and initializes two new Array instances.
   Array^ mySourceArray = Array::CreateInstance( String::typeid, 6 );
   mySourceArray->SetValue( "three", 0 );
   mySourceArray->SetValue( "napping", 1 );
   mySourceArray->SetValue( "cats", 2 );
   mySourceArray->SetValue( "in", 3 );
   mySourceArray->SetValue( "the", 4 );
   mySourceArray->SetValue( "barn", 5 );
   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 Array.
   Console::WriteLine(  "The target Array instance contains the following (before and after copying):" );
   PrintValues( myTargetArray );

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

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

void PrintValues( Array^ myArr )
{
   System::Collections::IEnumerator^ myEnumerator = myArr->GetEnumerator();
   int i = 0;
   int cols = myArr->GetLength( myArr->Rank - 1 );
   while ( myEnumerator->MoveNext() )
   {
      if ( i < cols )
      {
         i++;
      }
      else
      {
         Console::WriteLine();
         i = 1;
      }

      Console::Write(  " {0}", myEnumerator->Current );
   }

   Console::WriteLine();
}


/*
 This code produces the following output.
 
  The target Array instance 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
 */
using System;
public class SamplesArray  {

   public static void Main()  {

      // Creates and initializes two new Arrays.
      Array mySourceArray=Array.CreateInstance( typeof(String), 6 );
      mySourceArray.SetValue( "three", 0 );
      mySourceArray.SetValue( "napping", 1 );
      mySourceArray.SetValue( "cats", 2 );
      mySourceArray.SetValue( "in", 3 );
      mySourceArray.SetValue( "the", 4 );
      mySourceArray.SetValue( "barn", 5 );
      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 Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

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

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


   public static void PrintValues( Array myArr, char mySeparator )  {
      System.Collections.IEnumerator myEnumerator = myArr.GetEnumerator();
      int i = 0;
      int cols = myArr.GetLength( myArr.Rank - 1 );
      while ( myEnumerator.MoveNext() )  {
         if ( i < cols )  {
            i++;
         } else  {
            Console.WriteLine();
            i = 1;
         }
         Console.Write( "{0}{1}", mySeparator, myEnumerator.Current );
      }
      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
*/
Imports System
Imports Microsoft.VisualBasic

Public Class SamplesArray    
    
    Public Shared Sub Main()
        
        ' Creates and initializes two new Arrays.
        Dim mySourceArray As Array = Array.CreateInstance(GetType(String), 6)
        mySourceArray.SetValue("three", 0)
        mySourceArray.SetValue("napping", 1)
        mySourceArray.SetValue("cats", 2)
        mySourceArray.SetValue("in", 3)
        mySourceArray.SetValue("the", 4)
        mySourceArray.SetValue("barn", 5)
        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 Array.
        Console.WriteLine("The target Array contains the following" _
           & "(before and after copying):")
        PrintValues(myTargetArray, " "c)
        
        ' Copies the source Array to the target Array, starting at index 6.
        mySourceArray.CopyTo(myTargetArray, 6)
        
        ' Displays the values of the Array.
        PrintValues(myTargetArray, " "c)
    End Sub    
    
    Public Shared Sub PrintValues(myArr As Array, mySeparator As Char)
        Dim myEnumerator As System.Collections.IEnumerator = _
           myArr.GetEnumerator()
        Dim i As Integer = 0
        Dim cols As Integer = myArr.GetLength((myArr.Rank - 1))
        While myEnumerator.MoveNext()
            If i < cols Then
                i += 1
            Else
                Console.WriteLine()
                i = 1
            End If
            Console.Write("{0}{1}", mySeparator, myEnumerator.Current)
        End While
        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 following code example shows how to copy an Array to another Array with a nonzero lower bound. Note that the entire source Array is copied, including empty elements that overwrite existing elements in the target Array.

void PrintIndexAndValues( Array^ myArray );
void main2()
{
   // Creates and initializes the source Array.
   Array^ myArrayZero = Array::CreateInstance( String::typeid, 3 );
   myArrayZero->SetValue( "zero", 0 );
   myArrayZero->SetValue( "one", 1 );

   // Displays the source Array.
   Console::WriteLine(  "The array with lowbound=0 contains:" );
   PrintIndexAndValues( myArrayZero );

   // Creates and initializes the target Array.
   array<int>^myArrLen = {4};
   array<int>^myArrLow = {2};
   Array^ myArrayTwo = Array::CreateInstance( String::typeid, myArrLen, myArrLow );
   myArrayTwo->SetValue( "two", 2 );
   myArrayTwo->SetValue( "three", 3 );
   myArrayTwo->SetValue( "four", 4 );
   myArrayTwo->SetValue( "five", 5 );

   // Displays the target Array.
   Console::WriteLine(  "The array with lowbound=2 contains:" );
   PrintIndexAndValues( myArrayTwo );

   // Copy from the array with lowbound=0 to the array with lowbound=2.
   myArrayZero->CopyTo( myArrayTwo, 3 );

   // Displays the modified target Array.
   Console::WriteLine(  "\nAfter copying at relative index 1:" );
   PrintIndexAndValues( myArrayTwo );
}

void PrintIndexAndValues( Array^ myArray )
{
   for ( int i = myArray->GetLowerBound( 0 ); i <= myArray->GetUpperBound( 0 ); i++ )
      Console::WriteLine(  "\t[{0}]:\t{1}", i, myArray->GetValue( i ) );
}

/* 
 This code produces the following output.
 
 The array with lowbound=0 contains:
     [0]:    zero
     [1]:    one
     [2]:    
 The array with lowbound=2 contains:
     [2]:    two
     [3]:    three
     [4]:    four
     [5]:    five
 
 After copying at relative index 1:
     [2]:    two
     [3]:    zero
     [4]:    one
     [5]:
 */
public class SamplesArray2{

   public static void Main()  {
      // Creates and initializes the source Array.
      Array myArrayZero=Array.CreateInstance( typeof(String), 3 );
      myArrayZero.SetValue( "zero", 0 );
      myArrayZero.SetValue( "one", 1 );

      // Displays the source Array.
      Console.WriteLine( "The array with lower bound=0 contains:" );
      PrintIndexAndValues( myArrayZero );

      // Creates and initializes the target Array.
      int[] myArrLen = { 4 };
      int[] myArrLow = { 2 };
      Array myArrayTwo=Array.CreateInstance( typeof(String), myArrLen, myArrLow );
      myArrayTwo.SetValue( "two", 2 );
      myArrayTwo.SetValue( "three", 3 );
      myArrayTwo.SetValue( "four", 4 );
      myArrayTwo.SetValue( "five", 5 );

      // Displays the target Array.
      Console.WriteLine( "The array with lower bound=2 contains:" );
      PrintIndexAndValues( myArrayTwo );

      // Copies from the array with lower bound=0 to the array with lower bound=2.
      myArrayZero.CopyTo( myArrayTwo, 3 );

      // Displays the modified target Array.
      Console.WriteLine( "\nAfter copying to the target array from index 3:" );
      PrintIndexAndValues( myArrayTwo );
   }


   public static void PrintIndexAndValues( Array myArray )  {
      for ( int i = myArray.GetLowerBound(0); i <= myArray.GetUpperBound(0); i++ )
         Console.WriteLine( "\t[{0}]:\t{1}", i, myArray.GetValue( i ) );
   }
}
/* 
This code produces the following output.

The array with lower bound=0 contains:
    [0]:    zero
    [1]:    one
    [2]:    
The array with lower bound=2 contains:
    [2]:    two
    [3]:    three
    [4]:    four
    [5]:    five

After copying to the target array from index 3:
    [2]:    two
    [3]:    zero
    [4]:    one
    [5]:
*/
Public Class SamplesArray2    
    
    Public Shared Sub Main()
        ' Creates and initializes the source Array.
        Dim myArrayZero As Array = Array.CreateInstance(GetType(String), 3)
        myArrayZero.SetValue("zero", 0)
        myArrayZero.SetValue("one", 1)
        
        ' Displays the source Array.
        Console.WriteLine("The array with lower bound=0 contains:")
        PrintIndexAndValues(myArrayZero)
        
        ' Creates and initializes the target Array.
        Dim myArrLen As Integer() = {4}
        Dim myArrLow As Integer() = {2}
        Dim myArrayTwo As Array = Array.CreateInstance(GetType(String), _
           myArrLen, myArrLow)
        myArrayTwo.SetValue("two", 2)
        myArrayTwo.SetValue("three", 3)
        myArrayTwo.SetValue("four", 4)
        myArrayTwo.SetValue("five", 5)
        
        ' Displays the target Array.
        Console.WriteLine("The array with lower bound=2 contains:")
        PrintIndexAndValues(myArrayTwo)
        
        ' Copies from the array with lower bound=0 to the array with lower bound=2.
        myArrayZero.CopyTo(myArrayTwo, 3)
        
        ' Displays the modified target Array.
        Console.WriteLine(ControlChars.Cr + "After copying to the target array from " _
           + "index 3:")
        PrintIndexAndValues(myArrayTwo)
    End Sub
    
    Public Shared Sub PrintIndexAndValues(myArray As Array)
        Dim i As Integer
        For i = myArray.GetLowerBound(0) To myArray.GetUpperBound(0)
            Console.WriteLine(ControlChars.Tab + "[{0}]:" + ControlChars.Tab _
               + "{1}", i, myArray.GetValue(i))
        Next i
    End Sub
End Class

' This code produces the following output.
' 
' The array with lower bound=0 contains:
'     [0]:    zero
'     [1]:    one
'     [2]:    
' The array with lower bound=2 contains:
'     [2]:    two
'     [3]:    three
'     [4]:    four
'     [5]:    five
' 
' After copying to the target array from index 3:
'     [2]:    two
'     [3]:    zero
'     [4]:    one
'     [5]: 

Remarks

This method copies all the elements of the current array instance to the array destination array, starting at index index. The array destination array must already have been dimensioned and must have a sufficient number of elements to accommodate the copied elements. Otherwise, the method throws an exception.

This method supports the System.Collections.ICollection interface. If implementing System.Collections.ICollection is not explicitly required, use Copy to avoid an extra indirection.

If this method throws an exception while copying, the state of array is undefined.

This method is an O(n) operation, where n is Length.It performs a shallow copy only.

See Also

CopyTo(Array, Int64) CopyTo(Array, Int64) CopyTo(Array, Int64)

Copies all the elements of the current one-dimensional array to the specified one-dimensional array starting at the specified destination array index. The index is specified as a 64-bit integer.

public:
 void CopyTo(Array ^ array, long index);
[System.Runtime.InteropServices.ComVisible(false)]
public void CopyTo (Array array, long index);
member this.CopyTo : Array * int64 -> unit

Parameters

array
Array Array Array

The one-dimensional array that is the destination of the elements copied from the current array.

index
Int64 Int64 Int64

A 64-bit integer that represents the index in array at which copying begins.

Exceptions

index is outside the range of valid indexes for array.

array is multidimensional.

-or-

The number of elements in the source array is greater than the available number of elements from index to the end of the destination array.

The type of the source Array cannot be cast automatically to the type of the destination array.

The source Array is multidimensional.

At least one element in the source Array cannot be cast to the type of destination array.

Examples

The following code example shows how to copy an Array to another Array.

using namespace System;
void main1();
void main2();
void main()
{
   main1();
   Console::WriteLine();
   main2();
}

void PrintValues( Array^ myArr );
void main1()
{
   // Creates and initializes two new Array instances.
   Array^ mySourceArray = Array::CreateInstance( String::typeid, 6 );
   mySourceArray->SetValue( "three", 0 );
   mySourceArray->SetValue( "napping", 1 );
   mySourceArray->SetValue( "cats", 2 );
   mySourceArray->SetValue( "in", 3 );
   mySourceArray->SetValue( "the", 4 );
   mySourceArray->SetValue( "barn", 5 );
   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 Array.
   Console::WriteLine(  "The target Array instance contains the following (before and after copying):" );
   PrintValues( myTargetArray );

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

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

void PrintValues( Array^ myArr )
{
   System::Collections::IEnumerator^ myEnumerator = myArr->GetEnumerator();
   int i = 0;
   int cols = myArr->GetLength( myArr->Rank - 1 );
   while ( myEnumerator->MoveNext() )
   {
      if ( i < cols )
      {
         i++;
      }
      else
      {
         Console::WriteLine();
         i = 1;
      }

      Console::Write(  " {0}", myEnumerator->Current );
   }

   Console::WriteLine();
}


/*
 This code produces the following output.
 
  The target Array instance 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
 */
using System;
public class SamplesArray  {

   public static void Main()  {

      // Creates and initializes two new Arrays.
      Array mySourceArray=Array.CreateInstance( typeof(String), 6 );
      mySourceArray.SetValue( "three", 0 );
      mySourceArray.SetValue( "napping", 1 );
      mySourceArray.SetValue( "cats", 2 );
      mySourceArray.SetValue( "in", 3 );
      mySourceArray.SetValue( "the", 4 );
      mySourceArray.SetValue( "barn", 5 );
      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 Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

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

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


   public static void PrintValues( Array myArr, char mySeparator )  {
      System.Collections.IEnumerator myEnumerator = myArr.GetEnumerator();
      int i = 0;
      int cols = myArr.GetLength( myArr.Rank - 1 );
      while ( myEnumerator.MoveNext() )  {
         if ( i < cols )  {
            i++;
         } else  {
            Console.WriteLine();
            i = 1;
         }
         Console.Write( "{0}{1}", mySeparator, myEnumerator.Current );
      }
      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
*/
Imports System
Imports Microsoft.VisualBasic

Public Class SamplesArray    
    
    Public Shared Sub Main()
        
        ' Creates and initializes two new Arrays.
        Dim mySourceArray As Array = Array.CreateInstance(GetType(String), 6)
        mySourceArray.SetValue("three", 0)
        mySourceArray.SetValue("napping", 1)
        mySourceArray.SetValue("cats", 2)
        mySourceArray.SetValue("in", 3)
        mySourceArray.SetValue("the", 4)
        mySourceArray.SetValue("barn", 5)
        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 Array.
        Console.WriteLine("The target Array contains the following" _
           & "(before and after copying):")
        PrintValues(myTargetArray, " "c)
        
        ' Copies the source Array to the target Array, starting at index 6.
        mySourceArray.CopyTo(myTargetArray, 6)
        
        ' Displays the values of the Array.
        PrintValues(myTargetArray, " "c)
    End Sub    
    
    Public Shared Sub PrintValues(myArr As Array, mySeparator As Char)
        Dim myEnumerator As System.Collections.IEnumerator = _
           myArr.GetEnumerator()
        Dim i As Integer = 0
        Dim cols As Integer = myArr.GetLength((myArr.Rank - 1))
        While myEnumerator.MoveNext()
            If i < cols Then
                i += 1
            Else
                Console.WriteLine()
                i = 1
            End If
            Console.Write("{0}{1}", mySeparator, myEnumerator.Current)
        End While
        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 following code example shows how to copy an Array to another Array with a nonzero lower bound. Note that the entire source Array is copied, including empty elements that overwrite existing elements in the target Array.

void PrintIndexAndValues( Array^ myArray );
void main2()
{
   // Creates and initializes the source Array.
   Array^ myArrayZero = Array::CreateInstance( String::typeid, 3 );
   myArrayZero->SetValue( "zero", 0 );
   myArrayZero->SetValue( "one", 1 );

   // Displays the source Array.
   Console::WriteLine(  "The array with lowbound=0 contains:" );
   PrintIndexAndValues( myArrayZero );

   // Creates and initializes the target Array.
   array<int>^myArrLen = {4};
   array<int>^myArrLow = {2};
   Array^ myArrayTwo = Array::CreateInstance( String::typeid, myArrLen, myArrLow );
   myArrayTwo->SetValue( "two", 2 );
   myArrayTwo->SetValue( "three", 3 );
   myArrayTwo->SetValue( "four", 4 );
   myArrayTwo->SetValue( "five", 5 );

   // Displays the target Array.
   Console::WriteLine(  "The array with lowbound=2 contains:" );
   PrintIndexAndValues( myArrayTwo );

   // Copy from the array with lowbound=0 to the array with lowbound=2.
   myArrayZero->CopyTo( myArrayTwo, 3 );

   // Displays the modified target Array.
   Console::WriteLine(  "\nAfter copying at relative index 1:" );
   PrintIndexAndValues( myArrayTwo );
}

void PrintIndexAndValues( Array^ myArray )
{
   for ( int i = myArray->GetLowerBound( 0 ); i <= myArray->GetUpperBound( 0 ); i++ )
      Console::WriteLine(  "\t[{0}]:\t{1}", i, myArray->GetValue( i ) );
}

/* 
 This code produces the following output.
 
 The array with lowbound=0 contains:
     [0]:    zero
     [1]:    one
     [2]:    
 The array with lowbound=2 contains:
     [2]:    two
     [3]:    three
     [4]:    four
     [5]:    five
 
 After copying at relative index 1:
     [2]:    two
     [3]:    zero
     [4]:    one
     [5]:
 */
public class SamplesArray2{

   public static void Main()  {
      // Creates and initializes the source Array.
      Array myArrayZero=Array.CreateInstance( typeof(String), 3 );
      myArrayZero.SetValue( "zero", 0 );
      myArrayZero.SetValue( "one", 1 );

      // Displays the source Array.
      Console.WriteLine( "The array with lower bound=0 contains:" );
      PrintIndexAndValues( myArrayZero );

      // Creates and initializes the target Array.
      int[] myArrLen = { 4 };
      int[] myArrLow = { 2 };
      Array myArrayTwo=Array.CreateInstance( typeof(String), myArrLen, myArrLow );
      myArrayTwo.SetValue( "two", 2 );
      myArrayTwo.SetValue( "three", 3 );
      myArrayTwo.SetValue( "four", 4 );
      myArrayTwo.SetValue( "five", 5 );

      // Displays the target Array.
      Console.WriteLine( "The array with lower bound=2 contains:" );
      PrintIndexAndValues( myArrayTwo );

      // Copies from the array with lower bound=0 to the array with lower bound=2.
      myArrayZero.CopyTo( myArrayTwo, 3 );

      // Displays the modified target Array.
      Console.WriteLine( "\nAfter copying to the target array from index 3:" );
      PrintIndexAndValues( myArrayTwo );
   }


   public static void PrintIndexAndValues( Array myArray )  {
      for ( int i = myArray.GetLowerBound(0); i <= myArray.GetUpperBound(0); i++ )
         Console.WriteLine( "\t[{0}]:\t{1}", i, myArray.GetValue( i ) );
   }
}
/* 
This code produces the following output.

The array with lower bound=0 contains:
    [0]:    zero
    [1]:    one
    [2]:    
The array with lower bound=2 contains:
    [2]:    two
    [3]:    three
    [4]:    four
    [5]:    five

After copying to the target array from index 3:
    [2]:    two
    [3]:    zero
    [4]:    one
    [5]:
*/
Public Class SamplesArray2    
    
    Public Shared Sub Main()
        ' Creates and initializes the source Array.
        Dim myArrayZero As Array = Array.CreateInstance(GetType(String), 3)
        myArrayZero.SetValue("zero", 0)
        myArrayZero.SetValue("one", 1)
        
        ' Displays the source Array.
        Console.WriteLine("The array with lower bound=0 contains:")
        PrintIndexAndValues(myArrayZero)
        
        ' Creates and initializes the target Array.
        Dim myArrLen As Integer() = {4}
        Dim myArrLow As Integer() = {2}
        Dim myArrayTwo As Array = Array.CreateInstance(GetType(String), _
           myArrLen, myArrLow)
        myArrayTwo.SetValue("two", 2)
        myArrayTwo.SetValue("three", 3)
        myArrayTwo.SetValue("four", 4)
        myArrayTwo.SetValue("five", 5)
        
        ' Displays the target Array.
        Console.WriteLine("The array with lower bound=2 contains:")
        PrintIndexAndValues(myArrayTwo)
        
        ' Copies from the array with lower bound=0 to the array with lower bound=2.
        myArrayZero.CopyTo(myArrayTwo, 3)
        
        ' Displays the modified target Array.
        Console.WriteLine(ControlChars.Cr + "After copying to the target array from " _
           + "index 3:")
        PrintIndexAndValues(myArrayTwo)
    End Sub
    
    Public Shared Sub PrintIndexAndValues(myArray As Array)
        Dim i As Integer
        For i = myArray.GetLowerBound(0) To myArray.GetUpperBound(0)
            Console.WriteLine(ControlChars.Tab + "[{0}]:" + ControlChars.Tab _
               + "{1}", i, myArray.GetValue(i))
        Next i
    End Sub
End Class

' This code produces the following output.
' 
' The array with lower bound=0 contains:
'     [0]:    zero
'     [1]:    one
'     [2]:    
' The array with lower bound=2 contains:
'     [2]:    two
'     [3]:    three
'     [4]:    four
'     [5]:    five
' 
' After copying to the target array from index 3:
'     [2]:    two
'     [3]:    zero
'     [4]:    one
'     [5]: 

Remarks

This method copies all the elements of the current array instance to the array destination array, starting at index index. The array destination array must already have been dimensioned and must have a sufficient number of elements to accommodate the copied elements. Otherwise, the method throws an exception.

This method supports the System.Collections.ICollection interface. If implementing System.Collections.ICollection is not explicitly required, use Copy to avoid an extra indirection.

If this method throws an exception while copying, the state of array is undefined.

This method is an O(n) operation, where n is Length.It performs a shallow copy only.

See Also

Applies to