TaskScheduler.TryDequeue(Task) Method

Reference

Definition

Namespace:: System.Threading.Tasks

Assemblies:: mscorlib.dll, System.Threading.Tasks.dll

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Threading.Tasks.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: TaskScheduler.cs

Source:: TaskScheduler.cs

Source:: TaskScheduler.cs

Important

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

protected public:
 virtual bool TryDequeue(System::Threading::Tasks::Task ^ task);

[System.Security.SecurityCritical]
protected internal virtual bool TryDequeue(System.Threading.Tasks.Task task);

protected internal virtual bool TryDequeue(System.Threading.Tasks.Task task);

[<System.Security.SecurityCritical>]
abstract member TryDequeue : System.Threading.Tasks.Task -> bool
override this.TryDequeue : System.Threading.Tasks.Task -> bool

abstract member TryDequeue : System.Threading.Tasks.Task -> bool
override this.TryDequeue : System.Threading.Tasks.Task -> bool

Protected Friend Overridable Function TryDequeue (task As Task) As Boolean

Parameters

task: Task

The Task to be dequeued.

Returns

Boolean

A Boolean denoting whether the task argument was successfully dequeued.

Attributes: SecurityCriticalAttribute

Exceptions

ArgumentNullException

The task argument is null.

Remarks

For more information, see TaskScheduler.

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.

Applies to

ผลิตภัณฑ์	เวอร์ชัน
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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