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Task.WaitAny Method (Task[], TimeSpan)

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)

static member WaitAny : 
        tasks:Task[] * 
        timeout:TimeSpan -> int

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.

ExceptionCondition
ObjectDisposedException

The Task has been disposed.

ArgumentNullException

The tasks argument is a null reference (Nothing in Visual Basic).

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.

.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

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, 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.

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