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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
Assemblies:   System.Threading.Tasks (in System.Threading.Tasks.dll)
  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.

ExceptionCondition
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.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

.NET for Windows Phone apps

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

Portable Class Library

Supported in: Portable Class Library
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