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Task.WaitAny Method (Task[], TimeSpan)

.NET Framework 4.5

Waits for any of the provided Task objects to complete execution within a specified time interval.

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

public static int WaitAny(
	Task[] tasks,
	TimeSpan timeout
)

Parameters

tasks: Type: System.Threading.Tasks.Task[]
An array of Task instances on which to wait.

timeout: Type: System.TimeSpan
A TimeSpan that represents the number of milliseconds to wait, or a TimeSpan that represents -1 milliseconds to wait indefinitely.

Return Value

Type: System.Int32
The index of the completed task in the tasks array argument, or -1 if the timeout occurred.

Exceptions

Exception	Condition
ObjectDisposedException	The Task has been disposed.
ArgumentNullException	The tasks argument is null.
ArgumentOutOfRangeException	timeout is a negative number other than -1 milliseconds, which represents an infinite time-out -or- timeout is greater than MaxValue.
ArgumentException	The tasks argument contains a null element.

Version Information

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

Task Class

WaitAny Overload

System.Threading.Tasks Namespace

Other Resources

Task Parallel Library (TPL)

Task Parallelism (Task Parallel Library)

How to: Wait on One or More Tasks to Complete

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