WorkflowRuntime.WorkflowCreated Événement

Définition

Espace de noms:

System.Workflow.Runtime

Assembly:

System.Workflow.Runtime.dll

Se produit lorsqu'une instance de workflow est créée.

public:
 event EventHandler<System::Workflow::Runtime::WorkflowEventArgs ^> ^ WorkflowCreated;

public event EventHandler<System.Workflow.Runtime.WorkflowEventArgs> WorkflowCreated;

member this.WorkflowCreated : EventHandler<System.Workflow.Runtime.WorkflowEventArgs> 

Public Event WorkflowCreated As EventHandler(Of WorkflowEventArgs) 

Type d'événement

EventHandler<WorkflowEventArgs>

Exemples

L'exemple de code suivant montre comment utiliser les fonctionnalités WorkflowRuntime d'un hôte de workflow. Le code associe l'événement WorkflowCreated à un gestionnaire d'événements, méthode qui est nommée OnWorkflowCreated.

Cet exemple de code fait partie de l’exemple de service de persistance personnalisée.

static void Main()
{
    using (WorkflowRuntime workflowRuntime = new WorkflowRuntime())
    {
        try
        {
            // engine will unload workflow instance when it is idle
            workflowRuntime.AddService(new FilePersistenceService(true));

            workflowRuntime.WorkflowCreated += OnWorkflowCreated;
            workflowRuntime.WorkflowCompleted += OnWorkflowCompleted;
            workflowRuntime.WorkflowIdled += OnWorkflowIdle;
            workflowRuntime.WorkflowUnloaded += OnWorkflowUnload;
            workflowRuntime.WorkflowLoaded += OnWorkflowLoad;
            workflowRuntime.WorkflowTerminated += OnWorkflowTerminated;
            workflowRuntime.ServicesExceptionNotHandled += OnExceptionNotHandled;

            workflowRuntime.CreateWorkflow(typeof(PersistenceServiceWorkflow)).Start();

            waitHandle.WaitOne();
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception \n\t Source: {0} \n\t Message: {1}", e.Source, e.Message);
        }
        finally
        {
            workflowRuntime.StopRuntime();
            Console.WriteLine("Workflow runtime stopped, program exiting... \n");
        }
    }
}

Shared Sub Main()

    Using currentWorkflowRuntime As New WorkflowRuntime()
        Try

            ' engine will unload workflow instance when it is idle
            currentWorkflowRuntime.AddService(New FilePersistenceService(True))

            AddHandler currentWorkflowRuntime.WorkflowCreated, AddressOf OnWorkflowCreated
            AddHandler currentWorkflowRuntime.WorkflowCompleted, AddressOf OnWorkflowCompleted
            AddHandler currentWorkflowRuntime.WorkflowIdled, AddressOf OnWorkflowIdled
            AddHandler currentWorkflowRuntime.WorkflowUnloaded, AddressOf OnWorkflowUnloaded
            AddHandler currentWorkflowRuntime.WorkflowLoaded, AddressOf OnWorkflowLoaded
            AddHandler currentWorkflowRuntime.WorkflowTerminated, AddressOf OnWorkflowTerminated
            AddHandler currentWorkflowRuntime.ServicesExceptionNotHandled, AddressOf OnExceptionNotHandled

            currentWorkflowRuntime.CreateWorkflow(GetType(PersistenceServiceWorkflow)).Start()

            waitHandle.WaitOne()

        Catch e As Exception
            Console.WriteLine("Exception \n\t Source: 0} \n\t Message: 1}", e.Source, e.Message)
        Finally
            currentWorkflowRuntime.StopRuntime()
            Console.WriteLine("Workflow runtime stopped, program exiting... \n")
        End Try
    End Using
End Sub

Remarques

Le moteur d'exécution de workflow déclenche l'événement WorkflowCreated après que l'instance de workflow a été complètement construite mais avant que les activités ne soient traitées. Pour cet événement, l'expéditeur contient l'objet WorkflowRuntime et l'objet WorkflowEventArgs contient l'objet WorkflowInstance associé à l'événement.

Pour plus d’informations sur la gestion des événements, consultez Gestion et déclenchement d’événements.