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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: 2.5.0+57.Branch.master.Sha.6a4e00a2d91090c65a9b11364b9ebfdb9c7da076
Syntax
Copy
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 null.
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