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System.Activities.Presentation.Validation Namespace

Contains classes that provide activity validation functionality for activities in the Windows Workflow Designer.

Public classValidationErrorInfoProvides a container for all the properties attached to an instance of a validation error that occurred during the design time or run time of a workflow activity.
Public classValidationServiceProvides the functionality required to validate a workflow activity designer while it is being edited and to provide the results of the validation process.

Public interfaceIValidationErrorServiceDefines ways to access a specified list of activity validation errors.

Public enumerationValidationStateAn enumeration of values that represent states of workflow element validation.