Task.WaitAll Method (Task, Int32, CancellationToken)
Waits for all of the provided Task objects to complete execution within a specified number of milliseconds or until the wait is cancelled.
Assembly: mscorlib (in mscorlib.dll)
static member WaitAll : tasks:Task * millisecondsTimeout:int * cancellationToken:CancellationToken -> bool
The number of milliseconds to wait, or Infinite (-1) to wait indefinitely.
One or more of the Task objects in tasks has been disposed.
The tasks argument is null.
millisecondsTimeout is a negative number other than -1, which represents an infinite time-out.
The tasks argument contains a null element.
The tasks argument is an empty array.
The cancellationToken was canceled.
The cancellationToken argument is used to cancel the wait operation. Cancellation of the tasks is a distinct operation, and is signaled by the AggregateException noted above.
Available since 4.5
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Available since 8.1