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TaskScheduler.TryDequeue Method

.NET Framework 4.5

Attempts to dequeue a Task that was previously queued to this scheduler.

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

protected internal virtual bool TryDequeue(
	Task task
)

Parameters

task: Type: System.Threading.Tasks.Task
The Task to be dequeued.

Return Value

Type: System.Boolean
A Boolean denoting whether the task argument was successfully dequeued.

Exceptions

Exception	Condition
ArgumentNullException	The task argument is null.

Remarks

For more information, see Task Schedulers.

This method may execute in a finally block; therefore it should return as quickly as possible so that any resources such as CancellationTokenRegistration objects can be disposed of in a timely manner.

Version Information

.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

Platforms

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.

Reference

TaskScheduler Class

System.Threading.Tasks Namespace

Other Resources

Task Parallel Library (TPL)

Task Schedulers

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