AWS SDK for .NET Documentation
CloseStatus Property
AmazonAmazon.SimpleWorkflow.ModelWorkflowExecutionInfoCloseStatus Did this page help you?   Yes   No    Tell us about it...
If the execution status is closed then this specifies how the execution was closed:

Constraints:

Allowed Values
COMPLETED, FAILED, CANCELED, TERMINATED, CONTINUED_AS_NEW, TIMED_OUT

Declaration Syntax
C#
public string CloseStatus { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)