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Dictionary<TKey, TValue>.KeyCollection.CopyTo Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Copies the Dictionary<TKey, TValue>.KeyCollection elements to an existing one-dimensional Array, starting at the specified array index.

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

Syntax

'Declaration
Public Sub CopyTo ( _
    array As TKey(), _
    index As Integer _
)

public void CopyTo(
    TKey[] array,
    int index
)

Parameters

  • index
    Type: System.Int32
    The zero-based index in array at which copying begins.

Implements

ICollection<T>.CopyTo(array<T[], Int32)

Exceptions

Exception Condition
ArgumentNullException

array is nulla null reference (Nothing in Visual Basic).
ArgumentOutOfRangeException

index is less than zero.
ArgumentException

The number of elements in the source Dictionary<TKey, TValue>.KeyCollection is greater than the available space from index to the end of the destination array.

Remarks

The elements are copied to the Array in the same order in which the enumerator iterates through the Dictionary<TKey, TValue>.KeyCollection.

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

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.