AWS SDK for .NET Documentation
StateReasonData Property
AmazonAmazon.CloudWatch.ModelMetricAlarmStateReasonData Did this page help you?   Yes   No    Tell us about it...
An explanation for the alarm's state in machine-readable JSON format

Constraints:

Length
0 - 4000

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

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