Method WriteAsync

WriteAsync(byte[], int, int, CancellationToken)

Asynchronously writes a sequence of bytes to the current stream, advances the current position within this stream by the number of bytes written, and monitors cancellation requests.

Declaration

public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)

Parameters

Type	Name	Description
byte[]	buffer	The buffer to write data from.
int	offset	The zero-based byte offset in buffer from which to begin copying bytes to the stream.
int	count	The maximum number of bytes to write.
CancellationToken	cancellationToken	The token to monitor for cancellation requests. The default value is None.

Returns

Type	Description
Task	A task that represents the asynchronous write operation.

Overrides

Stream.WriteAsync(byte[], int, int, CancellationToken)

Exceptions

Type	Condition
ArgumentNullException	buffer is null.
ArgumentOutOfRangeException	offset or count is negative.
ArgumentException	The sum of offset and count is larger than the buffer length.
NotSupportedException	The stream does not support writing.
ObjectDisposedException	The stream has been disposed.
InvalidOperationException	The stream is currently in use by a previous write operation.