Activity基础类

System.Workflow.ComponentModel.Activity

Represents the fundamental building block of workflows. Activity is the base class for all activities.

 

 

 

Public Constructors

Activity

Overloaded. Initializes a new instance of the Activity class.

Public Fields

ActivityContextGuidProperty	The DependencyProperty representing the Guid of the Activity.
CancelingEvent	Represents the DependencyProperty which targets the Canceling event.
ClosedEvent	Represents the DependencyProperty which targets the Closed event.
CompensatingEvent	Represents the DependencyProperty which targets the Compensating event.
ExecutingEvent	Represents the DependencyProperty which targets the Executing event, which occurs when the activity is executed.
FaultingEvent	The DependencyProperty representing the Faulting event.
StatusChangedEvent	Represents the DependencyProperty which targets the StatusChanged event.
XClassProperty
XCodeProperty

 

Public Properties 

Description	Gets or sets the user defined description of the Activity.
Enabled	Gets or sets a value that indicates whether this instance is enabled for execution, and validation.
ExecutionResult	Gets the ActivityExecutionResult of the last attempt to run this instance
ExecutionStatus	Gets the current ActivityExecutionStatus of this instance.
Name	Gets or sets the name of this instance.
Parent	Gets the Activity that encloses this Activity.
QualifiedName	Gets the qualified name of the instance.
Site	Gets or sets a reference to the Site component of the DependencyObject.(Inherited from DependencyObject.)
UserData	Gets an IDictionary which associates custom data with this class.(Inherited from DependencyObject.)

 

Protected Properties

DesignMode	Gets the value that indicates whether this instance is in design or run-time mode.(Inherited from DependencyObject.)
ParentDependencyObject	Gets the parent DependencyObject in the DependencyObject graph.(Inherited from DependencyObject.)
WorkflowInstanceId	Gets the Guid associated with the instance.

 

Public Methods

AddHandler	Adds a handler for an event of a DependencyObject. (Inherited from DependencyObject.)
Clone	Creates a deep copy of the Activity.
GetActivityByName	Overloaded. Returns the instance of the Activity whose name is requested from the set of all activities running under the root activity of this instance; that is within the workflow.
GetBinding	Provides access to the Bind associated with the specific DependencyProperty. (Inherited from DependencyObject.)
GetValue	Provides access to the value of the designated DependencyProperty. (Inherited from DependencyObject.)
GetValueBase	Provides access to the bound object of a DependencyProperty and bypassing the GetValue override. (Inherited from DependencyObject.)
InvalidateProperty	Broadcasts that a DependencyProperty is no longervalid. (Inherited from DependencyObject.)
IsBindingSet	Indicates whether the value of a DependencyProperty is set as Binding. See SetBinding. (Inherited from DependencyObject.)
Load (静态)	Overloaded. Loads an instance of an Activity from a Stream.
MetaEquals	Determines whether the metaproperties of this DependencyObject equals the metaproperties of the parameterized DependencyObject. (Inherited from DependencyObject.)
RaiseEvent	Raises an Event associated with the specified dependency property.
RaiseGenericEvent	Raises the event associated with the referenced DependencyProperty.
RegisterForStatusChange	Registers the specified DependencyProperty for the status change event.
RemoveHandler	Removes an EventHandler from an associated DependencyProperty. (Inherited from DependencyObject.)
RemoveProperty	Removes a DependencyProperty from the DependencyObject. (Inherited from DependencyObject.)
Save	Overloaded. Saves a copy of the Activity to a Stream.
SetBinding	Sets the ActivityBind for the specified DependencyProperty. (Inherited from DependencyObject.)
SetValue	Sets the value of the DependencyProperty to the object. (Inherited from DependencyObject.)
SetValueBase	Sets the value of the DependencyProperty to the specified Object, bypassing the SetValue. (Inherited from DependencyObject.)
ToString	Overridden. Provides a string representing this instance.
UnregisterForStatusChange	Un-registers the specified DependencyProperty for the status change event.

Protected Methods

Cancel	Method used to cancel execution of an activity.
Execute	Runs the activity synchronously.
Finalize	Provided as an override to System.Object.Finalize to clean up any unmanaged resources deterministically. (Inherited from DependencyObject.)
GetBoundValue	Retrieves the Object which is the subject of a ActvityBind. (Inherited from DependencyObject.)
GetDynamicActivities	Provides an array of activity instances which are dynamically created at run-time
GetInvocationList	Gets an array that contains the delegates for the specified DependencyProperty. (Inherited from DependencyObject.)
HandleFault	Called when an exception is raised within the context of the execution of this instance.
Initialize	When overridden in a derived class, provides initialization by a service provider for the activity.
Invoke	Overloaded.
OnClose	Runs when the activity is closed.
OnInitializeForRuntime	(Inherited from DependencyObject.)
OnPropertyInvalidated	Runs when a DependencyProperty is no longer valid. (Inherited from DependencyObject.)
SetBoundValue	Sets the value of the target ActivityBind. (Inherited from DependencyObject.)
SetReadOnlyPropertyValue	Sets the value of a DependencyProperty which is read-only. (Inherited from DependencyObject.)
TrackData	Overloaded. Informs the run-time tracking infrastructure of pending tracking information.

Public Events

Canceling	Occurs when the activity execution is cancelled.
Closed	Occurs when an Activity has completed execution.
Compensating	Occurs when running a compensation method on the Activity.
Executing	Occurs when the Activity is run.
Faulting	Occurs when an exception is raised during the running of the instance.
StatusChanged	Occurs when the Status of a running Activity changes.

 

 

 

 

 

CompositeActivity

System.Workflow.ComponentModel.CompositeActivity

Derives from Activity and contains a list of child activities. A CompositeActivity is responsible for managing the execution of its child activities.

 

The following tables list the members exposed by the CompositeActivity type.

 

Derives from Activity and contains a list of child activities. A CompositeActivity is responsible for managing the execution of its child activities.

 

 

 

Public Constructors

CompositeActivity

Overloaded. Initializes a new instance of the CompositeActivity class.

 

Public Properties

Activities	Gets the object representing the collection, ActivityCollection, of all child activities.
EnabledActivities	Gets the Read-Only Collection which represents the subset of Activities which are enabled.

 

Protected Properties

CanModifyActivities

Gets or sets a value which controls whether the individual activities within Activities can be modified.

 

Protected Methods

ApplyWorkflowChanges	Applies the WorkflowChanges manifest in the parameter to this instance.
Initialize	Overridden. Initializes all appropriate child activities using the WorkflowCoreRuntime of this instance and the specified IServiceProvider.
OnActivityChangeAdd	Calls the specified ActivityExecutionContextInitializeinitialize method using the specified Activity.
OnActivityChangeRemove	Called when an activity is removed.
OnListChanged	Performs additional processing when the Activities changes.
OnListChanging	Event which occurs before a change being made to the underlying Activities.
OnWorkflowChangesCompleted	Called after changes have been made to the collection Activities of this instance.