SequenceActivity Class
Runs a set of child activities according to a single defined ordering.
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
System.Workflow.ComponentModel::DependencyObject
System.Workflow.ComponentModel::Activity
System.Workflow.ComponentModel::CompositeActivity
System.Workflow.Activities::SequenceActivity
System.Workflow.Activities::CompensatableSequenceActivity
System.Workflow.Activities::EventDrivenActivity
System.Workflow.Activities::IfElseBranchActivity
System.Workflow.Activities::ReceiveActivity
System.Workflow.Activities::SequentialWorkflowActivity
System.Workflow.Activities::StateFinalizationActivity
System.Workflow.Activities::StateInitializationActivity
[ToolboxBitmapAttribute((SequenceActivity^::typeid), "Resources.Sequence.png")] [ObsoleteAttribute("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")] public ref class SequenceActivity : CompositeActivity, IActivityEventListener<ActivityExecutionStatusChangedEventArgs^>
| Name | Description | |
|---|---|---|
![]() | SequenceActivity() | Initializes a new instance of the SequenceActivity class. |
![]() | SequenceActivity(String^) | Initializes a new instance of the SequenceActivity class using the name of the activity. |
| Name | Description | |
|---|---|---|
![]() | Activities | Gets the object representing the collection, ActivityCollection, of all child activities.(Inherited from CompositeActivity.) |
![]() | CanModifyActivities | Gets or sets a value which controls whether the individual activities within Activities can be modified.(Inherited from CompositeActivity.) |
![]() | Description | |
![]() | DesignMode | Gets the value that indicates whether this instance is in design or run-time mode.(Inherited from DependencyObject.) |
![]() | Enabled | Gets or sets a value that indicates whether this instance is enabled for execution and validation.(Inherited from Activity.) |
![]() | EnabledActivities | Gets the read-only collection that represents the subset of Activities that are enabled. (Inherited from CompositeActivity.) |
![]() | ExecutionResult | Gets the ActivityExecutionResult of the last attempt to run this instance.(Inherited from Activity.) |
![]() | ExecutionStatus | Gets the current ActivityExecutionStatus of this instance.(Inherited from Activity.) |
![]() | IsDynamicActivity | Gets information about whether the activity is executing within the default ActivityExecutionContext of the workflow instance.(Inherited from Activity.) |
![]() | Name | Gets or sets the name of this instance. This name must conform to the variable naming convention of the programming language that is being used in the Workflow project.(Inherited from Activity.) |
![]() | Parent | Gets the CompositeActivity that contains this Activity.(Inherited from Activity.) |
![]() | ParentDependencyObject | Gets the parent DependencyObject in the DependencyObject graph.(Inherited from DependencyObject.) |
![]() | QualifiedName | Gets the qualified name of the activity. Qualified activity names are always unique in a workflow instance.(Inherited from Activity.) |
![]() | Site | Gets or sets a reference to the Site component of the DependencyObject.(Inherited from DependencyObject.) |
![]() | UserData | Gets an IDictionary that associates custom data with this class instance.(Inherited from DependencyObject.) |
![]() | WorkflowInstanceId |
| Name | Description | |
|---|---|---|
![]() | AddHandler(DependencyProperty^, Object^) | Adds a handler for an event of a DependencyObject.(Inherited from DependencyObject.) |
![]() | ApplyWorkflowChanges(WorkflowChanges^) | Applies the WorkflowChanges manifest in the parameter to this instance.(Inherited from CompositeActivity.) |
![]() | Cancel(ActivityExecutionContext^) | Cancels the execution of the activity.(Overrides Activity::Cancel(ActivityExecutionContext^).) |
![]() | Clone() | |
![]() | Dispose() | Releases all the resources used by the DependencyObject.(Inherited from DependencyObject.) |
![]() | Dispose(Boolean) | Calls Dispose on this instance, and optionally calls Dispose on all child activities of this instance.(Inherited from CompositeActivity.) |
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Execute(ActivityExecutionContext^) | Executes the activity.(Overrides Activity::Execute(ActivityExecutionContext^).) |
![]() | Finalize() | Provided as an override to Object::Finalize to clean up any unmanaged resources deterministically.(Inherited from DependencyObject.) |
![]() | GetActivityByName(String^) | |
![]() | GetActivityByName(String^, Boolean) | |
![]() | GetBinding(DependencyProperty^) | Provides access to the ActivityBind associated with the specific DependencyProperty.(Inherited from DependencyObject.) |
![]() | GetBoundValue(ActivityBind^, Type^) | Retrieves the Object that is the subject of an ActivityBind.(Inherited from DependencyObject.) |
![]() | GetDynamicActivities(Activity^) | Returns an array that contains all of the currently executing instances of the specified activity.(Inherited from CompositeActivity.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetInvocationList<T>(DependencyProperty^) | Gets an array that contains the delegates for the specified DependencyProperty.(Inherited from DependencyObject.) |
![]() | GetType() | |
![]() | GetValue(DependencyProperty^) | Provides access to the value of the designated DependencyProperty.(Inherited from DependencyObject.) |
![]() | GetValueBase(DependencyProperty^) | Provides access to the bound object of a DependencyProperty and bypasses the GetValue override.(Inherited from DependencyObject.) |
![]() | HandleFault(ActivityExecutionContext^, Exception^) | Called when an exception is raised within the context of the execution of this instance.(Overrides CompositeActivity::HandleFault(ActivityExecutionContext^, Exception^).) |
![]() | Initialize(IServiceProvider^) | Initializes all appropriate child activities of this instance and the specified IServiceProvider.(Inherited from CompositeActivity.) |
![]() | InitializeProperties() | Performs initialization on dependency properties when overridden in a derived class.(Inherited from DependencyObject.) |
![]() | Invoke<T>(EventHandler<T>^, T) | Subscribes an EventHandler and invokes that delegate.(Inherited from Activity.) |
![]() | Invoke<T>(IActivityEventListener<T>^, T) | Subscribes an IActivityEventListener<T> and invokes that delegate.(Inherited from Activity.) |
![]() | IsBindingSet(DependencyProperty^) | Indicates whether the value of a DependencyProperty is set as a binding. See SetBinding.(Inherited from DependencyObject.) |
![]() | MemberwiseClone() | |
![]() | MetaEquals(DependencyObject^) | Determines whether the metaproperties of this DependencyObject equals the metaproperties of the parameterized DependencyObject.(Inherited from DependencyObject.) |
![]() | OnActivityChangeAdd(ActivityExecutionContext^, Activity^) | Calls when an activity is added.(Inherited from CompositeActivity.) |
![]() | OnActivityChangeRemove(ActivityExecutionContext^, Activity^) | Called when an activity is removed.(Overrides CompositeActivity::OnActivityChangeRemove(ActivityExecutionContext^, Activity^).) |
![]() | OnActivityExecutionContextLoad(IServiceProvider^) | Called by the workflow runtime engine every time the ActivityExecutionContext for this activity is loaded.(Inherited from CompositeActivity.) |
![]() | OnActivityExecutionContextUnload(IServiceProvider^) | Called by the workflow runtime engine every time the ActivityExecutionContext for this activity is unloaded.(Inherited from CompositeActivity.) |
![]() | OnClosed(IServiceProvider^) | Called by the workflow runtime as part of the activity's transition to the closed state.(Inherited from Activity.) |
![]() | OnListChanged(ActivityCollectionChangeEventArgs^) | Performs additional processing when the Activities property changes.(Inherited from CompositeActivity.) |
![]() | OnListChanging(ActivityCollectionChangeEventArgs^) | Event that occurs before a change being made to the underlying Activities.(Inherited from CompositeActivity.) |
![]() | OnSequenceComplete(ActivityExecutionContext^) | When overridden in a derived class, determines the action taken by the SequenceActivity when the activity has completed execution. |
![]() | OnWorkflowChangesCompleted(ActivityExecutionContext^) | Called after changes have been made to the collection Activities of this instance.(Overrides CompositeActivity::OnWorkflowChangesCompleted(ActivityExecutionContext^).) |
![]() | RaiseEvent(DependencyProperty^, Object^, EventArgs^) | |
![]() | RaiseGenericEvent<T>(DependencyProperty^, Object^, T) | Raises the event associated with the referenced DependencyProperty.(Inherited from Activity.) |
![]() | RegisterForStatusChange(DependencyProperty^, IActivityEventListener<ActivityExecutionStatusChangedEventArgs^>^) | Registers the specified DependencyProperty for the status change event.(Inherited from Activity.) |
![]() | RemoveHandler(DependencyProperty^, Object^) | Removes an EventHandler from an associated DependencyProperty.(Inherited from DependencyObject.) |
![]() | RemoveProperty(DependencyProperty^) | Removes a DependencyProperty from the DependencyObject.(Inherited from DependencyObject.) |
![]() | Save(Stream^) | |
![]() | Save(Stream^, IFormatter^) | Writes the Activity to a Stream for persistence using the custom IFormatter provided for serialization.(Inherited from Activity.) |
![]() | SetBinding(DependencyProperty^, ActivityBind^) | Sets the ActivityBind for the specified DependencyProperty. (Inherited from DependencyObject.) |
![]() | SetBoundValue(ActivityBind^, Object^) | Sets the value of the target ActivityBind.(Inherited from DependencyObject.) |
![]() | SetReadOnlyPropertyValue(DependencyProperty^, Object^) | Sets the value of a DependencyProperty, which is read-only.(Inherited from DependencyObject.) |
![]() | SetValue(DependencyProperty^, Object^) | Sets the value of the DependencyProperty to the object.(Inherited from DependencyObject.) |
![]() | SetValueBase(DependencyProperty^, Object^) | Sets the value of the DependencyProperty to the specified Object, bypassing the SetValue.(Inherited from DependencyObject.) |
![]() | ToString() | Provides a string that represents this instance.(Inherited from Activity.) |
![]() | TrackData(Object^) | Informs the run-time tracking infrastructure of pending tracking information.(Inherited from Activity.) |
![]() | TrackData(String^, Object^) | Informs the run-time tracking infrastructure of pending tracking information.(Inherited from Activity.) |
![]() | Uninitialize(IServiceProvider^) | Called by the workflow runtime engine when an activity transitions into the Closed state from the Initialized state.(Inherited from CompositeActivity.) |
![]() | UnregisterForStatusChange(DependencyProperty^, IActivityEventListener<ActivityExecutionStatusChangedEventArgs^>^) | Un-registers the specified DependencyProperty for the status change event.(Inherited from Activity.) |
| Name | Description | |
|---|---|---|
![]() | Canceling | Occurs when the activity execution is canceled. (Inherited from Activity.) |
![]() | Closed | |
![]() | Compensating | |
![]() | Executing | |
![]() | Faulting | Occurs when an exception is raised during the running of the instance.(Inherited from Activity.) |
![]() | StatusChanged | Occurs when the ActivityExecutionStatus of a running Activity changes.(Inherited from Activity.) |
| Name | Description | |
|---|---|---|
![]() ![]() | IComponent::Disposed | Represents the method that handles the Disposed event of a component.(Inherited from DependencyObject.) |
![]() ![]() | IActivityEventListener<ActivityExecutionStatusChangedEventArgs^>::OnEvent(Object^, ActivityExecutionStatusChangedEventArgs^) | Defines the processing procedure when the subscribed-to event occurs. |
Note |
|---|
This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5. |
The SequenceActivity is a CompositeActivity, meaning the SequenceActivity can contain other activities.
The SequenceActivity class coordinates the running of a set of child activities in an ordered manner, one at a time. The SequenceActivity is completed when the final child activity is finished.
Classes that derive from SequenceActivity should not implement the IActivityEventListener<T> interface, or the derived class will not execute correctly.
The following code example demonstrates how to create a new instance of the SequenceActivity class and add the SequenceActivity classes to the ParallelActivity class. This code example is part of the WhileAndParallel SDK Sample from the WhileAndParallelWorkflow.Designer.cs file. For more information, see Using While and Parallel.
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
System.Workflow.Activities Namespace
Using the Sequence Activity








