# Class TOperation OptimaJet.Workflow.BpmnPlugin.Model.TOperation Namespace: [OptimaJet.Workflow.BpmnPlugin.Model](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/) ```csharp public class TOperation : TBaseElement ``` ## Type Hierarchy - [TBaseElement](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TBaseElement/) - TOperation Current type ## Constructors `public TOperation()` Initializes a new instance of the [TOperation](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TOperation/) class. ## Properties `public XmlQualifiedName InMessageRef { get; set; }` `public XmlQualifiedName OutMessageRef { get; set; }` `public Collection ErrorRef { get; }` `public bool ErrorRefSpecified { get; }` Gets a value indicating whether the ErrorRef collection is empty. `public string Name { get; set; }` `public XmlQualifiedName ImplementationRef { get; set; }` [Previous TMultiInstanceLoopCharacteristics](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TMultiInstanceLoopCharacteristics/) [Next TOutputSet](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TOutputSet/)