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Queue::ToArray Method

Copies the Queue elements to a new array.

Namespace:  System.Collections
Assembly:  mscorlib (in mscorlib.dll)

public:
virtual array<Object^>^ ToArray()

Return Value

Type: array<System::Object>
A new array containing elements copied from the Queue.

The Queue is not modified. The order of the elements in the new array is the same as the order of the elements from the beginning of the Queue to its end.

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.

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
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