# OpcTaskSchedule Class

<span class="api-meta">static · since v2.7</span>

<dl class="api-definition">
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx">Opc.UaFx</a></dd>
<dt>Assembly</dt>
<dd>Opc.UaFx.Advanced.dll</dd>
<dt>Package</dt>
<dd>Opc.UaFx.Advanced v2.59.0</dd>
<dt>Members</dt>
<dd><a href="./members">OpcTaskSchedule Members</a></dd>
<dt>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

Defines the central entry point used to schedule any kind of task to perform using custom queuing and scheduling mechanisms.

## Syntax

<div class="api-signature" data-lang="csharp">

```csharp
public static class OpcTaskSchedule
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Module OpcTaskSchedule
```

</div>

## Inheritance

[Object](https://learn.microsoft.com/dotnet/api/system.object) → **OpcTaskSchedule**

## Properties

| Name | Description |
|---|---|
| [CustomScheduler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctaskschedule/members#customscheduler)<span class="api-meta">static · since v2.11</span> | Gets or sets the callback used to schedule task invocations. |
| [DefaultScheduler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctaskschedule/members#defaultscheduler)<span class="api-meta api-meta--obsolete">static · Obsolete: Use CustomScheduler instead.</span> | Gets or sets the callback used to schedule task invocations. |

## Methods

| Name | Description |
|---|---|
| [QueryScheduler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctaskschedule/members#queryscheduler)<span class="api-meta">static · since v2.11</span> | Determines the [OpcTaskSchedule.Scheduler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctaskschedule.scheduler/) to use to schedule task invocations with respect to the `context` specified. |
| [Schedule](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctaskschedule/members#schedule)<span class="api-meta">static · 2 overloads</span> | Schedules the invocation of the `action` specified using custom queuing and scheduling mechanisms. |

## Applies to

| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.7–v2.59 |