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BlockingCollection<T>.CopyTo Method

Copies all of the items in the BlockingCollection<T> instance to a compatible one-dimensional array, starting at the specified index of the target array.

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

public void CopyTo(
	T[] array,
	int index


Type: T[]
The one-dimensional array that is the destination of the elements copied from the BlockingCollection<T> instance. The array must have zero-based indexing.
Type: System.Int32
The zero-based index in array at which copying begins.


The BlockingCollection<T> has been disposed.


The array argument is null.


The index argument is less than zero.


The index argument is equal to or greater than the length of the array.

The destination array is too small to hold all of the BlockingCcollection elements.

The array rank doesn't match.

The array type is incompatible with the type of the BlockingCollection elements.

CopyTo represents a snapshot of the collection at a precise point in time. If other threads are adding or removing items while CopyTo is executing, then the elements returned by CopyTo might not represent the state of the collection.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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