WorkflowApplication.GetBookmarks Método

public:
 System::Collections::ObjectModel::ReadOnlyCollection<System::Activities::Hosting::BookmarkInfo ^> ^ GetBookmarks();

public System.Collections.ObjectModel.ReadOnlyCollection<System.Activities.Hosting.BookmarkInfo> GetBookmarks();

member this.GetBookmarks : unit -> System.Collections.ObjectModel.ReadOnlyCollection<System.Activities.Hosting.BookmarkInfo>

Public Function GetBookmarks () As ReadOnlyCollection(Of BookmarkInfo)

Devoluções

Uma coleção de marcadores de livros apenas de leitura para a instância do workflow.

Exemplos

O exemplo seguinte cria um fluxo de trabalho que utiliza uma ReadLine atividade que cria um Bookmark. O fluxo de trabalho é iniciado e, uma vez que o Bookmark é criado e o fluxo de trabalho entra em estado de espera, GetBookmarks é chamado. Quando o fluxo de trabalho é concluído, a saída a seguir é exibida no console.

What is your name?
BookmarkName: UserName - OwnerDisplayName: ReadLine
Steve
Hello, Steve

public sealed class ReadLine : NativeActivity<string>
{
    [RequiredArgument]
    public InArgument<string> BookmarkName { get; set; }

    protected override void Execute(NativeActivityContext context)
    {
        // Create a Bookmark and wait for it to be resumed.
        context.CreateBookmark(BookmarkName.Get(context),
            new BookmarkCallback(OnResumeBookmark));
    }

    // NativeActivity derived activities that do asynchronous operations by calling
    // one of the CreateBookmark overloads defined on System.Activities.NativeActivityContext
    // must override the CanInduceIdle property and return true.
    protected override bool CanInduceIdle
    {
        get { return true; }
    }

    public void OnResumeBookmark(NativeActivityContext context, Bookmark bookmark, object obj)
    {
        // When the Bookmark is resumed, assign its value to
        // the Result argument.
        Result.Set(context, (string)obj);
    }

Variable<string> name = new Variable<string>();

Activity wf = new Sequence
{
    Variables = { name },
    Activities =
     {
         new WriteLine
         {
             Text = "What is your name?"
         },
         new ReadLine
         {
             BookmarkName = "UserName",
             Result = new OutArgument<string>(name)
         },
         new WriteLine
         {
             Text = new InArgument<string>((env) =>
                 ("Hello, " + name.Get(env)))
         }
     }
};

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

// Workflow lifecycle events omitted except idle.
AutoResetEvent idleEvent = new AutoResetEvent(false);

wfApp.Idle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // You can also inspect the bookmarks from the Idle handler
    // using e.Bookmarks

    idleEvent.Set();
};

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

// Wait for the workflow to go idle and give it a chance
// to create the Bookmark.
idleEvent.WaitOne();

// Inspect the bookmarks
foreach (BookmarkInfo info in wfApp.GetBookmarks())
{
    Console.WriteLine("BookmarkName: {0} - OwnerDisplayName: {1}",
        info.BookmarkName, info.OwnerDisplayName);
}

// Gather the user's input and resume the bookmark.
wfApp.ResumeBookmark("UserName", Console.ReadLine());

Observações

Se esta operação não for concluída em 30 segundos, é lançado um TimeoutException a.

public:
 System::Collections::ObjectModel::ReadOnlyCollection<System::Activities::Hosting::BookmarkInfo ^> ^ GetBookmarks(TimeSpan timeout);

public System.Collections.ObjectModel.ReadOnlyCollection<System.Activities.Hosting.BookmarkInfo> GetBookmarks(TimeSpan timeout);

member this.GetBookmarks : TimeSpan -> System.Collections.ObjectModel.ReadOnlyCollection<System.Activities.Hosting.BookmarkInfo>

Public Function GetBookmarks (timeout As TimeSpan) As ReadOnlyCollection(Of BookmarkInfo)

Parâmetros

Devoluções

Uma coleção de marcadores de livros apenas de leitura para a instância do workflow.

Exemplos

O exemplo seguinte cria um fluxo de trabalho que utiliza uma ReadLine atividade que cria um Bookmark. O fluxo de trabalho é iniciado e, uma vez que o Bookmark é criado e o fluxo de trabalho entra em estado de espera, GetBookmarks é chamado. Quando o fluxo de trabalho é concluído, a saída a seguir é exibida no console.

What is your name?
BookmarkName: UserName - OwnerDisplayName: ReadLine
Steve
Hello, Steve

public sealed class ReadLine : NativeActivity<string>
{
    [RequiredArgument]
    public InArgument<string> BookmarkName { get; set; }

    protected override void Execute(NativeActivityContext context)
    {
        // Create a Bookmark and wait for it to be resumed.
        context.CreateBookmark(BookmarkName.Get(context),
            new BookmarkCallback(OnResumeBookmark));
    }

    // NativeActivity derived activities that do asynchronous operations by calling
    // one of the CreateBookmark overloads defined on System.Activities.NativeActivityContext
    // must override the CanInduceIdle property and return true.
    protected override bool CanInduceIdle
    {
        get { return true; }
    }

    public void OnResumeBookmark(NativeActivityContext context, Bookmark bookmark, object obj)
    {
        // When the Bookmark is resumed, assign its value to
        // the Result argument.
        Result.Set(context, (string)obj);
    }

Variable<string> name = new Variable<string>();

Activity wf = new Sequence
{
    Variables = { name },
    Activities =
     {
         new WriteLine
         {
             Text = "What is your name?"
         },
         new ReadLine
         {
             BookmarkName = "UserName",
             Result = new OutArgument<string>(name)
         },
         new WriteLine
         {
             Text = new InArgument<string>((env) =>
                 ("Hello, " + name.Get(env)))
         }
     }
};

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

// Workflow lifecycle events omitted except idle.
AutoResetEvent idleEvent = new AutoResetEvent(false);

wfApp.Idle = delegate(WorkflowApplicationIdleEventArgs e)
{
    // You can also inspect the bookmarks from the Idle handler
    // using e.Bookmarks

    idleEvent.Set();
};

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

// Wait for the workflow to go idle and give it a chance
// to create the Bookmark.
idleEvent.WaitOne();

// Inspect the bookmarks
foreach (BookmarkInfo info in wfApp.GetBookmarks())
{
    Console.WriteLine("BookmarkName: {0} - OwnerDisplayName: {1}",
        info.BookmarkName, info.OwnerDisplayName);
}

// Gather the user's input and resume the bookmark.
wfApp.ResumeBookmark("UserName", Console.ReadLine());