# Class BpmnActivityBase

OptimaJet.Workflow.BpmnPlugin.Elements.BpmnActivityBase

Namespace: [OptimaJet.Workflow.BpmnPlugin.Elements](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/)

```csharp
public abstract class BpmnActivityBase : ActivityBase
```

## Type Hierarchy

-   [FormBase](https://api.workflowengine.io/core/OptimaJet.Workflow.Core/FormBase/)
    -   [ActivityBase](https://api.workflowengine.io/core/OptimaJet.Workflow.Core/ActivityBase/)
        -   BpmnActivityBase Current type
            -   [EndEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/EndEvent/)
            -   [ExclusiveGateway](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/ExclusiveGateway/)
            -   [MessageCatchEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/MessageCatchEvent/)
            -   [ParallelGateway](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/ParallelGateway/)
            -   [ServiceTaskActivity](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/ServiceTaskActivity/)
            -   [StartEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/StartEvent/)
            -   [TerminateEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/TerminateEvent/)
            -   [TimerCatchEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/TimerCatchEvent/)

## Constructors

`public BpmnActivityBase(Func<bool>? getDisabled = null)` 

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `getDisabled` | `Func<Boolean>` |  |

## Properties

`public override string PluginName { get; }` 

Gets the name of the plugin that contributes this activity type to the workflow designer.

### Remarks

The value is included in the custom activity metadata and allows designer clients to group or otherwise identify plugin-provided activities. For example, the workflow designer places activities provided by the BPMN plugin on its BPMN palette tab. Built-in activities return [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null).

## Methods

`public override Task ExecutionAsync(WorkflowRuntime runtime, ProcessInstance processInstance, Dictionary<string, string> parameters, CancellationToken token)` 

Executes the form operation during normal workflow execution.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `runtime` | `WorkflowRuntime` | The WorkflowRuntime invoking the execution. |
| `processInstance` | `ProcessInstance` | The current ProcessInstance. |
| `parameters` | `Dictionary<String, String>` | Runtime parameter values for the executed form operation, keyed by parameter name. |
| `token` | `CancellationToken` | The [CancellationToken](https://learn.microsoft.com/dotnet/api/system.threading.cancellationtoken) passed from the execution pipeline. |

### Returns

| Type | Description |
| --- | --- |
| `Task` | A [Task](https://learn.microsoft.com/dotnet/api/system.threading.tasks.task) that represents the asynchronous execution. |

`public override Task PreExecutionAsync(WorkflowRuntime runtime, ProcessInstance processInstance, Dictionary<string, string> parameters, CancellationToken token)` 

Executes the form operation during pre-execution simulation.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `runtime` | `WorkflowRuntime` | The WorkflowRuntime invoking the simulation. |
| `processInstance` | `ProcessInstance` | The current ProcessInstance. |
| `parameters` | `Dictionary<String, String>` | Runtime parameter values for the simulated operation, keyed by parameter name. |
| `token` | `CancellationToken` | The [CancellationToken](https://learn.microsoft.com/dotnet/api/system.threading.cancellationtoken) passed from the execution pipeline. |

### Returns

| Type | Description |
| --- | --- |
| `Task` | A [Task](https://learn.microsoft.com/dotnet/api/system.threading.tasks.task) that represents the asynchronous simulation. |

[Previous UploadBpmnResponse](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.DesignerActions/UploadBpmnResponse/) [Next EndEvent](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Elements/EndEvent/)