WorkflowApplication.Abort 方法

定义

命名空间:

System.Activities

程序集:

System.Activities.dll

通知工作流运行时应中止此工作流实例。

重载

Abort()	通知工作流运行时应中止此工作流实例。
Abort(String)	通知工作流运行时由于特定原因应中止此工作流实例。

注解

当由 WorkflowApplication 承载的工作流中止时，将调用 Aborted 处理程序，而不调用 Completed 处理程序。

Abort()

通知工作流运行时应中止此工作流实例。

public:
 void Abort();

public void Abort ();

override this.Abort : unit -> unit

Public Sub Abort ()

示例

下面的示例使用 WorkflowApplication 承载一个工作流。 该示例使用指定的工作流定义构造 WorkflowApplication，处理所需的工作流生命周期事件，并通过调用 Run 来调用工作流。 启动工作流之后，将调用 Abort。 中止工作流时，会向控制台显示以下输出。

Starting the workflow.   
Workflow 3b76d562-516a-4a52-b17c-0f2ce531ad93 Idle.   
Workflow 3b76d562-516a-4a52-b17c-0f2ce531ad93 Aborted  
Exception: System.Activities.WorkflowApplicationAbortedException  
The workflow has been aborted.  

Activity wf = new Sequence
{
    Activities =
     {
         new WriteLine
         {
             Text = "Starting the workflow."
         },
         new Delay
         {
             Duration = TimeSpan.FromSeconds(5)
         },
         new WriteLine
         {
             Text = "Ending the workflow."
         }
     }
};

// Create a WorkflowApplication instance.
WorkflowApplication wfApp = new WorkflowApplication(wf);

// Subscribe to any desired workflow lifecycle events.
wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e)
{
    if (e.CompletionState == ActivityInstanceState.Faulted)
    {
        Console.WriteLine("Workflow {0} Terminated.", e.InstanceId);
        Console.WriteLine("Exception: {0}\n{1}",
            e.TerminationException.GetType().FullName,
            e.TerminationException.Message);
    }
    else if (e.CompletionState == ActivityInstanceState.Canceled)
    {
        Console.WriteLine("Workflow {0} Canceled.", e.InstanceId);
    }
    else
    {
        Console.WriteLine("Workflow {0} Completed.", e.InstanceId);

        // Outputs can be retrieved from the Outputs dictionary,
        // keyed by argument name.
        // Console.WriteLine("The winner is {0}.", e.Outputs["Winner"]);
    }
};

wfApp.Aborted = delegate(WorkflowApplicationAbortedEventArgs e)
{
    // Display the exception that caused the workflow
    // to abort.
    Console.WriteLine("Workflow {0} Aborted.", e.InstanceId);
    Console.WriteLine("Exception: {0}\n{1}",
        e.Reason.GetType().FullName,
        e.Reason.Message);
};

wfApp.Idle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // Perform any processing that should occur
    // when a workflow goes idle. If the workflow can persist,
    // both Idle and PersistableIdle are called in that order.
    Console.WriteLine("Workflow {0} Idle.", e.InstanceId);
};

wfApp.PersistableIdle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // Instruct the runtime to persist and unload the workflow
    return PersistableIdleAction.Unload;
};

wfApp.Unloaded = delegate(WorkflowApplicationEventArgs e)
{
    Console.WriteLine("Workflow {0} Unloaded.", e.InstanceId);
};

wfApp.OnUnhandledException = delegate(WorkflowApplicationUnhandledExceptionEventArgs e)
{
    // Display the unhandled exception.
    Console.WriteLine("OnUnhandledException in Workflow {0}\n{1}",
        e.InstanceId, e.UnhandledException.Message);

    Console.WriteLine("ExceptionSource: {0} - {1}",
        e.ExceptionSource.DisplayName, e.ExceptionSourceInstanceId);

    // Instruct the runtime to terminate the workflow.
    // Other choices are Abort and Cancel
    return UnhandledExceptionAction.Terminate;
};

// Run the workflow.
wfApp.Run();

Thread.Sleep(TimeSpan.FromSeconds(1));

wfApp.Abort();

注解

当由 WorkflowApplication 承载的工作流中止时，将调用 Aborted 处理程序，而不调用 Completed 处理程序。

Abort(String)

通知工作流运行时由于特定原因应中止此工作流实例。

public:
 void Abort(System::String ^ reason);

public void Abort (string reason);

override this.Abort : string -> unit

Public Sub Abort (reason As String)

参数

reason

String

请求中止的原因。

示例

下面的示例使用 WorkflowApplication 承载一个工作流。 该示例使用指定的工作流定义构造 WorkflowApplication，处理所需的工作流生命周期事件，并通过调用 Run 来调用工作流。 启动工作流之后，将调用 Abort。 中止工作流时，会向控制台显示以下输出。

Starting the workflow.   
Workflow 607b042e-98db-4bbe-abe8-f4d750feec41 Idle.   
Workflow 607b042e-98db-4bbe-abe8-f4d750feec41 Aborted  
Exception: System.Activities.WorkflowApplicationAbortedException  
The reason for aborting the workflow.  

Activity wf = new Sequence
{
    Activities =
     {
         new WriteLine
         {
             Text = "Starting the workflow."
         },
         new Delay
         {
             Duration = TimeSpan.FromSeconds(5)
         },
         new WriteLine
         {
             Text = "Ending the workflow."
         }
     }
};

// Create a WorkflowApplication instance.
WorkflowApplication wfApp = new WorkflowApplication(wf);

// Subscribe to any desired workflow lifecycle events.
wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e)
{
    if (e.CompletionState == ActivityInstanceState.Faulted)
    {
        Console.WriteLine("Workflow {0} Terminated.", e.InstanceId);
        Console.WriteLine("Exception: {0}\n{1}",
            e.TerminationException.GetType().FullName,
            e.TerminationException.Message);
    }
    else if (e.CompletionState == ActivityInstanceState.Canceled)
    {
        Console.WriteLine("Workflow {0} Canceled.", e.InstanceId);
    }
    else
    {
        Console.WriteLine("Workflow {0} Completed.", e.InstanceId);

        // Outputs can be retrieved from the Outputs dictionary,
        // keyed by argument name.
        // Console.WriteLine("The winner is {0}.", e.Outputs["Winner"]);
    }
};

wfApp.Aborted = delegate(WorkflowApplicationAbortedEventArgs e)
{
    // Display the exception that caused the workflow
    // to abort.
    Console.WriteLine("Workflow {0} Aborted.", e.InstanceId);
    Console.WriteLine("Exception: {0}\n{1}",
        e.Reason.GetType().FullName,
        e.Reason.Message);
};

wfApp.Idle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // Perform any processing that should occur
    // when a workflow goes idle. If the workflow can persist,
    // both Idle and PersistableIdle are called in that order.
    Console.WriteLine("Workflow {0} Idle.", e.InstanceId);
};

wfApp.PersistableIdle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // Instruct the runtime to persist and unload the workflow
    return PersistableIdleAction.Unload;
};

wfApp.Unloaded = delegate(WorkflowApplicationEventArgs e)
{
    Console.WriteLine("Workflow {0} Unloaded.", e.InstanceId);
};

wfApp.OnUnhandledException = delegate(WorkflowApplicationUnhandledExceptionEventArgs e)
{
    // Display the unhandled exception.
    Console.WriteLine("OnUnhandledException in Workflow {0}\n{1}",
        e.InstanceId, e.UnhandledException.Message);

    Console.WriteLine("ExceptionSource: {0} - {1}",
        e.ExceptionSource.DisplayName, e.ExceptionSourceInstanceId);

    // Instruct the runtime to terminate the workflow.
    // Other choices are Abort and Cancel
    return UnhandledExceptionAction.Terminate;
};

// Run the workflow.
wfApp.Run();

Thread.Sleep(TimeSpan.FromSeconds(1));

wfApp.Abort();

注解

当由 WorkflowApplication 承载的工作流中止时，将调用 Aborted 处理程序，而不调用 Completed 处理程序。