RuleUpdateAction Class

Indicates that a rule is updating a variable, in order to cause reevaluation of affected rules.

Namespace: System.Workflow.Activities.Rules
Assembly: System.Workflow.Activities (in system.workflow.activities.dll)

public class RuleUpdateAction : RuleAction
/** @attribute SerializableAttribute() */ 
public class RuleUpdateAction extends RuleAction
public class RuleUpdateAction extends RuleAction
Not applicable.

This class is used to indicate to the rules engine that execution of this rule's set of actions causes a change to the field or property that is specified (or all fields and properties on an object), so that any rules that are dependent on this field or property can be reevaluated.

An Update call does not prevent other actions in the action block from executing. The set of fields/properties that are modified (specified through Update or by using RuleWriteAttributes on methods invoked) is used to determine chaining when the set of actions for this particular rule finishes executing.


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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0