MemoryStream.WriteAsync Method (Byte, Int32, Int32, 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.
Assembly: mscorlib (in mscorlib.dll)
[ComVisibleAttribute(false)] [HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)] public override Task WriteAsync( byte buffer, int offset, int count, CancellationToken cancellationToken )
The buffer to write data from.
The zero-based byte offset in buffer from which to begin copying bytes to the stream.
The maximum number of bytes to write.
Return ValueType: System.Threading.Tasks.Task
A task that represents the asynchronous write operation.
buffer is null.
offset or count is negative.
The sum of offset and 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.
Available since 8
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Available since 8.1