Invoke a Workflow and bring back a value?

[andrzej.kniola (Andrzej Knioła)]

@melkinsblackbook

Hey, just wanted to ask - in an invoked workflow, is there way to return the workflow early rather than use a decision tree or terminating it with a throw exception/terminate activity?

No, there isn’t a return concept in WF4 outside of what you mentioned.

@vd1234

It is not bringing the value back to Main flow from Child flow incase of a exception thrown in child flow though the arguments are set before the exception thrown in child flow.

Correct. This is because the data transfer between contexts takes place at the end of a successful execution of that context ( = workflow). If it goes to Faulted or Cancelled state, data is not being set.

@vd1234

I need value from child flow to main flow for LOGGING purpose incase of exception thrown in child flow. Any solution?

Actually I can think of 2:

1. Throw a custom exception and handle that appropriately (that’s the main reason for BusinessRuleException’s existence).
2. Make use of Exception.Data property to store what you need.