CancellationToken.Register Method (Action<Object>, Object, Boolean)
Registers a delegate that will be called when this CancellationToken is canceled.
Assemblies: System.Threading.Tasks (in System.Threading.Tasks.dll)
mscorlib (in mscorlib.dll)
public CancellationTokenRegistration Register( Action<Object> callback, Object state, bool useSynchronizationContext )
- Type: System.Action<Object>
The delegate to be executed when the CancellationToken is canceled.
- Type: System.Object
The state to pass to the callback when the delegate is invoked. This may be null.
If this token is already in the canceled state, the delegate will be run immediately and synchronously. Any exception the delegate generates will be propogated out of this method call.
The current ExecutionContext, if one exists, will be captured along with the delegate and will be used when executing it.
.NET FrameworkSupported in: 4.6, 4.5, 4
.NET Framework Client ProfileSupported in: 4
Portable Class LibrarySupported in: Portable Class Library
.NET for Windows Store appsSupported in: Windows 8
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)