TaskFactory.StartNew<TResult> Method (Func<TResult>, CancellationToken, TaskCreationOptions, TaskScheduler)
Creates and starts a Task<TResult>.
Assembly: mscorlib (in mscorlib.dll)
public Task<TResult> StartNew<TResult>( Func<TResult> function, CancellationToken cancellationToken, TaskCreationOptions creationOptions, TaskScheduler scheduler )
A function delegate that returns the future result to be available through the Task<TResult>.
The CancellationToken that will be assigned to the new task.
A TaskCreationOptions value that controls the behavior of the created Task<TResult>.
The type of the result available through the Task<TResult>.
The provided CancellationToken has already been disposed.
The exception that is thrown when the function argument is null.
The exception that is thrown when the scheduler argument is null.
The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value. The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value. For more information, see the Remarks for FromAsync
Starting with the .NET Framework 4.5, you can use the Run method with an Action object as a quick way to call StartNew with default parameters. For more information and code examples, see the entry Task.Run vs. Task.Factory.StartNew in the Parallel Programming with .NET blog.
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