Task(TResult) Constructor (Func(TResult), CancellationToken)

Task<TResult> Constructor (Func<TResult>, CancellationToken)

 

Initializes a new Task<TResult> with the specified function.

Namespace:   System.Threading.Tasks
Assembly:  mscorlib (in mscorlib.dll)

public Task(
	Func<TResult> function,
	CancellationToken cancellationToken
)

Parameters

function
Type: System.Func<TResult>

The delegate that represents the code to execute in the task. When the function has completed, the task's Result property will be set to return the result value of the function.

cancellationToken
Type: System.Threading.CancellationToken

The CancellationToken to be assigned to this task.

Exception Condition
ObjectDisposedException

The CancellationTokenSource that created cancellationToken has already been disposed.

ArgumentNullException

The function argument is null.

Rather than calling this constructor, the most common way to instantiate a Task<TResult> object and launch a task is by calling the static Task.Run<TResult>(Func<TResult>, CancellationToken) and TaskFactory<TResult>.StartNew(Func<TResult>, CancellationToken) methods. The only advantage offered by this constructor is that it allows object instantiation to be separated from task invocation.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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