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CopyTo Method

Collection(T).CopyTo Method

Copies the entire Collection(T) to a compatible one-dimensional Array, starting at the specified index of the target array.

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

abstract CopyTo : 
        array:'T[] * 
        index:int -> unit  
override CopyTo : 
        array:'T[] * 
        index:int -> unit

Parameters

array
Type: T[]

The one-dimensional Array that is the destination of the elements copied from Collection(T). The Array must have zero-based indexing.

index
Type: System.Int32

The zero-based index in array at which copying begins.

Implements

ICollection(T).CopyTo(T[], Int32)

ExceptionCondition
ArgumentNullException

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

ArgumentOutOfRangeException

index is less than zero.

ArgumentException

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

This method uses Array.Copy to copy the elements.

The elements are copied to the Array in the same order in which the enumerator iterates through the Collection(T).

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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