Method CopyToAsync

Namespace: MongoDB.Driver.GridFS

Assembly: MongoDB.Driver.dll

CopyToAsync(Stream, int, CancellationToken)

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

public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)

Parameters

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

Returns

Task: A task that represents the asynchronous copy operation.

Exceptions

ArgumentNullException: destination is null.
ArgumentOutOfRangeException: buffersize is negative or zero.
ObjectDisposedException: Either the current stream or the destination stream is disposed.
NotSupportedException: The current stream does not support reading, or the destination stream does not support writing.