Parameters

buffer

The buffer to write data from.

offset

The zero-based byte offset in buffer from which to begin writing bytes to the stream.

count

The maximum number of bytes to write.

cancellationToken

The token to monitor for cancellation requests. The default value is System.Threading.CancellationToken.None.

Returns

A task that represents the asynchronous write operation.

Remarks

You must preface your call to CryptoStream.WriteAsync(Byte[], int, int, System.Threading.CancellationToken) with the await (C#) or Await (Visual Basic) operator to suspend execution of the method until the task is complete. For more information, see Asynchronous Programming with Async and Await (C# and Visual Basic).

If the operation is canceled before it completes, the returned task contains the System.Threading.Tasks.TaskStatus.Canceled value for the System.Threading.Tasks.Task.Status property.

Requirements