GZipStream.BeginWrite Method (Byte(), Int32, Int32, AsyncCallback, Object)
Begins an asynchronous write operation. (Consider using the Stream.WriteAsync method instead; see the Remarks section.)
Assembly: System (in System.dll)
<HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading := True)> Public Overrides Function BeginWrite ( array As Byte(), offset As Integer, count As Integer, asyncCallback As AsyncCallback, asyncState As Object ) As IAsyncResult
The buffer containing data to write to the current stream.
The byte offset in array at which to begin writing.
The maximum number of bytes to write.
An optional asynchronous callback to be called when the write operation is complete.
A user-provided object that distinguishes this particular asynchronous write request from other requests.
Return ValueType: System.IAsyncResult
An object that represents the asynchronous write operation, which could still be pending.
The underlying stream is null.
The underlying stream is closed.
Starting with the .NET Framework 4.5, you can perform asynchronous write operations by using the Stream.WriteAsync method. The method is still available in .NET Framework 4.5 to support legacy code; however, you can implement asynchronous I/O operations more easily by using the new async methods. For more information, see .
The GZipStream stream object.method starts an asynchronous write operation to a
You must create a callback method that implements the AsyncCallback delegate and pass its name to the method.
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms