Sets the StartTimestamp property

C# |
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")] public WorkflowExecutionInfo WithStartTimestamp( DateTime startTimestamp )

- startTimestamp (DateTime)
- The value to set for the StartTimestamp property

this instance