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StateMachineWorkflowInstance.StateHistory Property

Gets a collection of state activities that the state machine workflow instance has transitioned through.

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

public ReadOnlyCollection<string> StateHistory { get; }

Property Value

Type: System.Collections.ObjectModel.ReadOnlyCollection<String>
A collection of transitions that the StateActivity has made.

This property only returns the state history if the SqlTrackingService is used. An InvalidOperationException occurs if the SqlTrackingService is not installed. If there is no state history for a newly created instance, state history is created without the instance being started.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0
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