# Class AsyncEventHandlerExtensions

OptimaJet.Workflow.Core.Utils.AsyncEventHandlerExtensions

Namespace: [OptimaJet.Workflow.Core.Utils](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Utils/)

```csharp
public static class AsyncEventHandlerExtensions
```

## Methods

`public static Task InvokeSerialAsync<TEventArgs>(this AsyncEventHandler<TEventArgs> handler, object sender, TEventArgs args, CancellationToken token)` 

Invoke async event handler serial way

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `handler` | `AsyncEventHandler<TEventArgs>` |  |
| `sender` | `Object` |  |
| `args` | `{TEventArgs}` |  |
| `token` | `CancellationToken` |  |

### Returns

| Type | Description |
| --- | --- |
| `Task` |  |

`public static Task InvokeParallelAsync<TEventArgs>(this AsyncEventHandler<TEventArgs> handler, object sender, TEventArgs args, CancellationToken token)` 

Invoke async event handler parallel way

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `handler` | `AsyncEventHandler<TEventArgs>` |  |
| `sender` | `Object` |  |
| `args` | `{TEventArgs}` |  |
| `token` | `CancellationToken` |  |

### Returns

| Type | Description |
| --- | --- |
| `Task` |  |

[Previous AsyncEventHandler<TEventArgs>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Utils/AsyncEventHandler-TEventArgs/) [Next AsyncReaderWriterLock](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Utils/AsyncReaderWriterLock/)