WorkflowRuntime.WorkflowLoaded WorkflowRuntime.WorkflowLoaded WorkflowRuntime.WorkflowLoaded WorkflowRuntime.WorkflowLoaded Event

Definition

Tritt ein, wenn die Workflowinstanz in den Arbeitsspeicher geladen wird.Occurs when the workflow instance is loaded into memory.

public:
 event EventHandler<System::Workflow::Runtime::WorkflowEventArgs ^> ^ WorkflowLoaded;
public event EventHandler<System.Workflow.Runtime.WorkflowEventArgs> WorkflowLoaded;
member this.WorkflowLoaded : EventHandler<System.Workflow.Runtime.WorkflowEventArgs> 
Public Event WorkflowLoaded As EventHandler(Of WorkflowEventArgs) 

Beispiele

Das folgende Codebeispiel zeigt, wie Sie die WorkflowRuntime-Funktionalität eines Workflowhosts verwenden können.The following code example demonstrates how to use WorkflowRuntime functionality from a workflow host. Der Code ordnet WorkflowLoaded einem Ereignishandler zu. Hierbei handelt es sich um eine Methode mit dem Namen OnWorkflowLoad.The code associates the WorkflowLoaded with an event handler, a method named OnWorkflowLoad.

Dieses Codebeispiel ist Teil des Beispiel für den benutzerdefinierten Persistenzdienst .This code example is part of the Custom Persistence Service sample.

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

Hinweise

WorkflowLoaded tritt ein, nachdem der Persistenzdienst die Workflowinstanz wiederhergestellt hat, aber bevor die Workflowruntime-Engine mit der Ausführung von Aktivitäten beginnt.WorkflowLoaded occurs after the persistence service has restored the workflow instance, but before the workflow run-time engine begins to execute any activities.

Bei dem WorkflowLoaded-Ereignis enthält der Absender die WorkflowRuntime, und WorkflowEventArgs enthält die WorkflowInstance, die dem Ereignis zugeordnet ist.For the WorkflowLoaded event, the sender contains the WorkflowRuntime and WorkflowEventArgs contains the WorkflowInstance associated with the event.

Weitere Informationen zur Behandlung von Ereignissen finden Sie unter behandeln und Auswerfen von Ereignissen.For more information about handling events, see Handling and raising events.

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