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DelegatingStreamCopyToAsync Method (Stream, Int32, CancellationToken)

Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size and cancellation token.

Namespace:  MongoDB.Driver.GridFS
Assembly:  MongoDB.Driver.GridFS (in MongoDB.Driver.GridFS.dll) Version: 2.16.0+eeafbea0921243a5868b81984e1083a07c1f75bc
Syntax
public override Task CopyToAsync(
	Stream destination,
	int bufferSize,
	CancellationToken cancellationToken
)

Parameters

destination
Type: System.IOStream
The stream to which the contents of the current stream will be copied.
bufferSize
Type: SystemInt32
The size, in bytes, of the buffer. This value must be greater than zero. The default size is 81920.
cancellationToken
Type: System.ThreadingCancellationToken
The token to monitor for cancellation requests. The default value is None.

Return Value

Type: Task
A task that represents the asynchronous copy operation.
Exceptions
ExceptionCondition
ArgumentNullExceptiondestination is .
ArgumentOutOfRangeExceptionbuffersize is negative or zero.
ObjectDisposedExceptionEither the current stream or the destination stream is disposed.
NotSupportedExceptionThe current stream does not support reading, or the destination stream does not support writing.
See Also