ICollection.CopyTo Method
.NET Framework Class Library
Dictionary<(Of <(TKey, TValue>)>)..::.ICollection..::.CopyTo Method

Copies the elements of the ICollection<(Of <(T>)>) to an array, starting at the specified array index.

Namespace:  System.Collections.Generic
Assembly:  mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Private Sub CopyTo ( _
    array As Array, _
    index As Integer _
) Implements ICollection.CopyTo
Visual Basic (Usage)
Dim instance As Dictionary
Dim array As Array
Dim index As Integer

CType(instance, ICollection).CopyTo(array, _
    index)
C#
void ICollection.CopyTo(
    Array array,
    int index
)
Visual C++
private:
virtual void CopyTo(
    Array^ array, 
    int index
) sealed = ICollection::CopyTo
JScript
JScript does not support explicit interface implementations.

Parameters

array
Type: System..::.Array
The one-dimensional array that is the destination of the elements copied from ICollection<(Of <(T>)>). 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)
ExceptionCondition
ArgumentNullException

array is nullNothingnullptra null reference (Nothing in Visual Basic).

ArgumentOutOfRangeException

index is less than 0.

ArgumentException

array is multidimensional.

-or-

array does not have zero-based indexing.

-or-

The number of elements in the source ICollection<(Of <(T>)>) is greater than the available space from index to the end of the destination array.

-or-

The type of the source ICollection<(Of <(T>)>) cannot be cast automatically to the type of the destination array.

Each element copied from a Dictionary<(Of <(TKey, TValue>)>) is a KeyValuePair<(Of <(TKey, TValue>)>) structure representing a value and its key.

NoteNote:

If the type of the source ICollection cannot be cast automatically to the type of the destination array, the nongeneric implementations of ICollection..::.CopyTo throw an InvalidCastException, whereas the generic implementations throw an ArgumentException.

This method is an O(n) operation, where n is Count.

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

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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