TaskFactory.StartNew<TResult> Method (Func<Object, TResult>, Object, TaskCreationOptions)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates and starts a Task<TResult>.
Assembly: mscorlib (in mscorlib.dll)
public Task<TResult> StartNew<TResult>(
Func<Object, TResult> function,
Object state,
TaskCreationOptions creationOptions
)
Type Parameters
- TResult
The type of the result available through the Task<TResult>.
Parameters
- function
- Type: System.Func<Object, TResult>
A function delegate that returns the future result to be available through the Task<TResult>.
- state
- Type: System.Object
An object containing data to be used by the function delegate.
- creationOptions
- Type: System.Threading.Tasks.TaskCreationOptions
A TaskCreationOptions value that controls the behavior of the created Task<TResult>.
| Exception | Condition |
|---|---|
| ArgumentNullException | The exception that is thrown when the function argument is null. |
| ArgumentOutOfRangeException | 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 |
Calling StartNew is functionally equivalent to creating a Task<TResult> using one of its constructors and then calling Start to schedule it for execution.
However, unless creation and scheduling must be separated, StartNew is the recommended approach for both simplicity and performance.