Copies the Queue elements to an existing one-dimensional Array, starting at the specified array index.
Namespace:
System.Collections
Assembly:
mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Public Overridable Sub CopyTo ( _
array As Array, _
index As Integer _
)
Dim instance As Queue
Dim array As Array
Dim index As Integer
instance.CopyTo(array, index)
public virtual void CopyTo(
Array array,
int index
)
public:
virtual void CopyTo(
Array^ array,
int index
)
public function CopyTo(
array : Array,
index : int
)
Parameters
- array
- Type: System..::.Array
The one-dimensional Array that is the destination of the elements copied from Queue. The Array must have zero-based indexing.
- index
- Type: System..::.Int32
The zero-based index in array at which copying begins.
Implements
ICollection..::.CopyTo(Array, Int32)
The elements are copied to the Array in the same order in which the enumerator iterates through the Queue.
This method is an O(n) operation, where n is Count.
The following example shows how to copy a Queue into a one-dimensional array.
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
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
*/
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
*/
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference