How a child workflow cancellation is treated by the workflow.
public enum ChildWorkflowCancellationType
Abandon = 0
Do not request cancellation of the child workflow is already scheduled.
TryCancel = 1
Initiate a cancellation request and immediately report cancellation to the parent.
WaitCancellationCompleted = 2
Wait for child cancellation completion.
WaitCancellationRequested = 3
Request cancellation of the child and wait for confirmation that the request was received.