WorkflowRuntime.RemoveService(Object) 方法

定义

命名空间:

System.Workflow.Runtime

程序集:

System.Workflow.Runtime.dll

从工作流运行时引擎中移除指定的服务。

public:
 void RemoveService(System::Object ^ service);

public void RemoveService (object service);

member this.RemoveService : obj -> unit

Public Sub RemoveService (service As Object)

参数

service

Object

一个对象，表示要移除的服务。

例外

ArgumentNullException

service 为空引用（在 Visual Basic 中为 Nothing）。

ObjectDisposedException

已释放 WorkflowRuntime。

InvalidOperationException

工作流运行时引擎已启动（IsStarted 为 true），且 service 为核心服务。

- 或 -

service 未向工作流运行时引擎注册。

示例

在下面的示例中，将向 SqlWorkflowPersistenceService 添加和移除一个 WorkflowRuntime。

// Create a new workflow runtime
WorkflowRuntime workflowRuntime = new WorkflowRuntime();
// Create a new instance of the out-of-box SqlWorkflowPersistenceService
SqlWorkflowPersistenceService persistenceService =
   new SqlWorkflowPersistenceService(
   "Initial Catalog=SqlPersistenceService;Data Source=localhost;Integrated Security=SSPI;");
// Add the service to the runtime
workflowRuntime.AddService(persistenceService);
// Start the runtime
workflowRuntime.StartRuntime();
// Stop the runtime
workflowRuntime.StopRuntime();
// Remove the service from the runtime
workflowRuntime.RemoveService(persistenceService);

' Create a new workflow runtime
Dim workflowRuntime As New WorkflowRuntime()
' Create a new instance of the out-of-box SqlWorkflowPersistenceService
Dim persistenceService As New SqlWorkflowPersistenceService( _
   "Initial Catalog=SqlPersistenceServiceData Source=localhostIntegrated Security=SSPI")
' Add the service to the runtime
workflowRuntime.AddService(persistenceService)
' Start the runtime
workflowRuntime.StartRuntime()
' Stop the runtime
workflowRuntime.StopRuntime()
' Remove the service from the runtime
workflowRuntime.RemoveService(persistenceService)

注解

当工作流运行时引擎正在运行 (IsStartedtrue) 时，无法删除核心服务。 核心服务是派生自 WorkflowSchedulerService 类、WorkflowCommitWorkBatchService 类、WorkflowPersistenceService 类或 TrackingService 类的服务。 如果 service 派生自 WorkflowRuntimeService 类，则 RemoveService 将调用由 Stop 实现的 service 方法。