WaitAll Method (Task[], Int32)
Collapse the table of content
Expand the table of content

Task.WaitAll Method (Task(), Int32)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Waits for all of the provided Task objects to complete execution.

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

'Declaration
Public Shared Function WaitAll ( _
	tasks As Task(), _
	millisecondsTimeout As Integer _
) As Boolean

Parameters

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

millisecondsTimeout
Type: System.Int32
The number of milliseconds to wait, or Infinite (-1) to wait indefinitely.

Return Value

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

ExceptionCondition
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 -or- an exception was thrown during the execution of at least one of the Task instances. If a task was canceled, the AggregateException contains an OperationCanceledException in its InnerExceptions collection.

ArgumentOutOfRangeException

millisecondsTimeout is a negative number other than -1, which represents an infinite time-out.

ArgumentException

The tasks argument contains a null element.

Windows Phone OS

Supported in: 8.1, 8.0

Show:
© 2017 Microsoft