AWS SDK for .NET Documentation
ActivityId Property
AmazonAmazon.SimpleWorkflow.ModelRequestCancelActivityTaskDecisionAttributesActivityId Did this page help you?   Yes   No    Tell us about it...
The activityId of the activity task to be canceled.

Constraints:

Length
1 - 256

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

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