Task::WaitAll Method (array<Task^>^, TimeSpan)

.NET Framework (current version)
 

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

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

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public:
static bool WaitAll(
	array<Task^>^ tasks,
	TimeSpan timeout
)

Parameters

tasks
Type: array<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::Boolean

true if all of the Task instances completed execution within the allotted time; otherwise, false.

Exception Condition
ObjectDisposedException

One or more of the Task objects in tasks has been disposed.

ArgumentNullException

The tasks argument is null.

AggregateException

At least one of the Task instances was canceled. If a task was canceled, the AggregateException contains an OperationCanceledException in its InnerExceptions collection.

-or-

An exception was thrown during the execution of at least one of the Task instances.

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.

-or-

The tasks argument is an empty array.

Universal Windows Platform
Available since 8
.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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