This documentation is archived and is not being maintained.

WorkflowChanges Class

Represents a set of proposed changes to a running workflow instance.


Namespace:  System.Workflow.ComponentModel
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

public sealed class WorkflowChanges

The WorkflowChanges type exposes the following members.

Public methodWorkflowChangesInitializes a new instance of the WorkflowChanges class.

Public propertyTransientWorkflowReturns a cloned activity tree to which changes can be made and then applied to the running workflow instance.

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 methodStatic memberGetConditionGets the condition property on a dependency object.
Public methodGetHashCodeServes as a hash function for a particular type. (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 methodStatic memberSetConditionSets the condition property on a dependency object.
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodValidateValidates the current set of proposed changes that have been made to the activity tree represented by the TransientWorkflow property.

Public fieldStatic memberConditionPropertySpecifies the condition that must be satisfied to apply the WorkflowChanges.

All proposed changes to a running workflow instance must be made using a WorkflowChanges object.

When a WorkflowChanges object is constructed in application code (outside the workflow instance), the Activity object that is passed to the constructor must be the object that is returned by the GetWorkflowDefinition method of the WorkflowInstance class.

The following example demonstrates creating a new instance of a WorkflowChanges object. This example is from the Ordering State Machine SDK sample. For more information, see Ordering State Machine Sample.

// Create a new instance of the WorkflowChanges class for managing
// the in-memory changes to the workflow
WorkflowChanges changes = new WorkflowChanges(root);

.NET Framework

Supported in: 4, 3.5, 3.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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.