TaskFactory.StartNew Method (Action, CancellationToken)
Creates and starts a Task.
Assembly: mscorlib (in mscorlib.dll)
The action delegate to execute asynchronously.
Calling StartNew is functionally equivalent to creating a Task using one of its constructors and then calling Start to schedule it for execution.
Starting with the .NET Framework 4.5, you can use the Task.Run(Action, CancellationToken) method as a quick way to call with default parameters. Note, however, that there is a difference in behavior between the two methods regarding : Task.Run(Action, CancellationToken) by default does not allow child tasks started with the TaskCreationOptions.AttachedToParent option to attach to the current Task instance, whereas does. For more information and code examples, see Task.Run vs Task.Factory.StartNew in the Parallel Programming with .NET blog.
The following example calls the Parallel.ForEach<'TSource> method to add information about each file to a List<'T> object. Each detached nested task invoked by the Parallel.ForEach<'TSource> loop checks the state of the cancellation token and, if cancellation is requested, calls the CancellationToken.ThrowIfCancellationRequested method. The CancellationToken.ThrowIfCancellationRequested method throws an OperationCanceledException exception that is handled in a catch block when the calling thread calls the Task.Wait method.method to create a task that iterates the files in the C:\Windows\System32 directory. The lambda expression calls the
Available since 8
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Available since 8.1