WorkflowRuntime.WorkflowLoaded Olay

Tanım

Ad Alanı:

System.Workflow.Runtime

Bütünleştirilmiş Kod:

System.Workflow.Runtime.dll

İş akışı örneği belleğe yüklendiğinde gerçekleşir.

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) 

Olay Türü

EventHandler<WorkflowEventArgs>

Örnekler

Aşağıdaki kod örneği, bir iş akışı konağından işlevselliğin nasıl kullanılacağını WorkflowRuntime gösterir. Kod, adlı bir yöntem OnWorkflowLoadolan olay işleyicisi ile ilişkilendirirWorkflowLoaded.

Bu kod örneği , Özel Kalıcılık Hizmeti örneğinin bir parçasıdır.

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

Açıklamalar

WorkflowLoaded kalıcılık hizmeti iş akışı örneğini geri yükledikten sonra, ancak iş akışı çalışma zamanı altyapısı herhangi bir etkinliği yürütmeye başlamadan önce gerçekleşir.

Olay için WorkflowLoaded , gönderen öğesini içerir WorkflowRuntime ve WorkflowEventArgs olayla ilişkili öğesini WorkflowInstance içerir.

Olayları işleme hakkında daha fazla bilgi için bkz. Olayları işleme ve oluşturma.