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TaskFactory.ContinueWhenAny<TAntecedentResult, TResult> Method (Task<TAntecedentResult>[], Func<Task<TAntecedentResult>, TResult>)

May 11, 2014

Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

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

public Task<TResult> ContinueWhenAny<TAntecedentResult, TResult>(
	Task<TAntecedentResult>[] tasks,
	Func<Task<TAntecedentResult>, TResult> continuationFunction
)

Type Parameters

TAntecedentResult

The type of the result of the antecedent tasks.

TResult

The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

Parameters

tasks
Type: System.Threading.Tasks.Task<TAntecedentResult> []
The array of tasks from which to continue when one task completes.
continuationFunction
Type: System.Func<Task<TAntecedentResult>, TResult>
The function delegate to execute asynchronously when one task in the tasks array completes.

Return Value

Type: System.Threading.Tasks.Task<TResult>
The new continuation Task<TResult>.

ExceptionCondition
ObjectDisposedException

The exception that is thrown when one of the elements in the tasks array has been disposed.

ArgumentNullException

The exception that is thrown when the tasks array is null.

-or-

The exception that is thrown when the continuationFunction argument is null.

ArgumentException

The exception that is thrown when the tasks array contains a null value.

-or-

The exception that is thrown when the tasks array is empty.

Windows Phone OS

Supported in: 8.1, 8.0

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