SpeechSequenceActivity Class

Article
08/18/2014

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Represents a workflow activity that supports commands as well as goto execution semantics.

Namespace: Microsoft.SpeechServer.Dialog
Assembly: Microsoft.SpeechServer (in microsoft.speechserver.dll)

Syntax

'Declaration
<GlobalizedCategoryAttribute("MSSCategory")> _
<GlobalizedDescriptionAttribute("SpeechSequenceActivity")> _
<ToolboxBitmapAttribute(GetType(SpeechSequenceActivity))> _
<DesignerAttribute("Microsoft.SpeechServer.Authoring.DialogDesigner.SpeechSequenceActivityDesigner, Microsoft.SpeechServer.Authoring.DialogDesigner, Version=2.0.3400.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35", GetType(IDesigner))> _
<ActivityValidatorAttribute(GetType(SpeechSequenceActivityValidator))> _
Public Class SpeechSequenceActivity
    Inherits SequenceActivity
    Implements IActivityEventListener(Of ActivityExecutionStatusChangedEventArgs), IActivityEventListener(Of QueueEventArgs)

[GlobalizedCategoryAttribute("MSSCategory")] 
[GlobalizedDescriptionAttribute("SpeechSequenceActivity")] 
[ToolboxBitmapAttribute(typeof(SpeechSequenceActivity))] 
[DesignerAttribute("Microsoft.SpeechServer.Authoring.DialogDesigner.SpeechSequenceActivityDesigner, Microsoft.SpeechServer.Authoring.DialogDesigner, Version=2.0.3400.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35", typeof(IDesigner))] 
[ActivityValidatorAttribute(typeof(SpeechSequenceActivityValidator))] 
public class SpeechSequenceActivity : SequenceActivity, IActivityEventListener<ActivityExecutionStatusChangedEventArgs>, IActivityEventListener<QueueEventArgs>

Remarks

A SpeechSequenceActivity consists of at most one CommandsActivity object as a child activity. Any other child activities are considered to be part of the sequence main flow.

A goto can occur from any point in the main flow or command flow; however, the target of the GoToActivity must be an immediate child in the main flow.

Warning

If you define a class that inherits from SpeechSequenceActivity, do not call System.Workflow.ComponentModel.Activity.GetActivityByName from within the constructor of your class. Doing so causes a stack overflow that ultimately causes Visual Studio 2005 to crash.

Inheritance Hierarchy

System.Object
???? System.Workflow.ComponentModel.DependencyObject
???????? System.Workflow.ComponentModel.Activity
???????????? System.Workflow.ComponentModel.CompositeActivity
???????????????? System.Workflow.Activities.SequenceActivity
????????????????????Microsoft.SpeechServer.Dialog.SpeechSequenceActivity
???????????????????????? Microsoft.SpeechServer.Dialog.CommandActivity
???????????????????????? Microsoft.SpeechServer.Dialog.SpeechEventActivity
???????????????????????? Microsoft.SpeechServer.Dialog.SpeechSequentialWorkflowActivity

Thread Safety

All public static (Shared in Visual Basic) members of this type are thread-safe. Instance members are not guaranteed to be thread-safe.

Platforms

Development Platforms

Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Vista Ultimate Edition, Windows Vista Business Edition, Windows Vista Enterprise Edition

Target Platforms

Windows Server 2003