Stream. Write Async(Byte, Int32, Int32, CancellationToken) Method
Writes a sequence of bytes to the current stream asynchronously, advances the current position within the stream by the number of bytes written, and monitors cancellation requests.
public: override System::Threading::Tasks::Task ^ WriteAsync(cli::array <System::Byte> ^ buffer, int offset, int count, System::Threading::CancellationToken cancellationToken);
public override System.Threading.Tasks.Task WriteAsync (byte buffer, int offset, int count, System.Threading.CancellationToken cancellationToken);
override this.WriteAsync : byte * int * int * System.Threading.CancellationToken -> System.Threading.Tasks.Task
The buffer to write data from.
The zero-based byte offset in
buffer from which to begin writing bytes to the stream.
The maximum number of bytes to write.
The token to monitor for cancellation requests. The default value is None.
A task that represents the asynchronous write operation.
count is negative.
The sum of
count is larger than the buffer length.
The stream does not support writing.
The stream has been disposed.
The stream is currently in use by a previous write operation.
You must preface your call to WriteAsync 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.