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WorkflowApplicationInstance Class

.NET Framework 4.5

Specifies information about a workflow application instance.


Namespace:  System.Activities
Assembly:  System.Activities (in System.Activities.dll)

public class WorkflowApplicationInstance

The WorkflowApplicationInstance type exposes the following members.

Public propertyDefinitionIdentityGets or sets the definition identity of the workflow.
Public propertyInstanceIdGets the unique identifier of the workflow instance.
Public propertyInstanceStoreGets or sets an object that provides access to the persisted state of the current instance of the workflow application.

Public methodAbandon()Causes the state machine to transition to the abandoned state.
Public methodAbandon(TimeSpan)Causes the state machine to transition to the abandoned state with the specified timeout value.
Public methodBeginAbandon(AsyncCallback, Object)Begins an asynchronous abandon operation.
Public methodBeginAbandon(TimeSpan, AsyncCallback, Object)Begins an asynchronous abandon operation.
Public methodCanApplyUpdateReturns a value that indicates whether the WorkflowApplicationInstance can apply update.
Public methodEndAbandonCompletes an asynchronous abandon operation.
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

This class supports the versioning and dynamic update functionality of Windows Workflow Foundation. For more information about workflow versioning, workflow identity, and dynamic update, see the following topics.

Workflow Versioning

Describes the workflow versioning functionality introduced in .NET Framework 4.5.

Dynamic Update

Describes how to update the workflow definition of a persisted workflow instance by using dynamic update.

Using WorkflowApplication Identity and Versioning

Describes how to use WorkflowIdentity to host multiple versions of a workflow side-by-side.

Side by Side Versioning in WorkflowServiceHost

Describes how to host multiple versions of a workflow on a single endpoint.

How to: Host Multiple Versions of a Workflow Side-by-Side

This step in the Getting Started Tutorial demonstrates updating a workflow definition, and hosting workflows using both the old and new definition at the same time.

How to: Update the Definition of a Running Workflow Instance

This step in the Getting Started Tutorial demonstrates updating persisted workflow instances to use a new workflow definition.

.NET Framework

Supported in: 4.6, 4.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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