Step 6: Adding the Transition

Without a composite workflow state, you would need to remove or modify an existing transition and add at least two transitions instead: one to the new workflow state, and another from the new workflow state. But with a composite workflow state, you need to add only one transition: from the Postponed nested workflow state to the next nested workflow state of the composite state.

To add a transition from the Postponed workflow state to the next workflow state in the composite state, do the following:

1. In the SOInvoiceRepairOrder_Workflow class, in the lambda expression for the UpdateDefaultFlow method, add the following code.

                           .WithTransitions(transitions =>
                           {
                               transitions.AddGroupFrom<ARDocStatus_Postponed.postponed>(
                                   transitionGroup =>
                               {
                                   transitionGroup.Add(transition => transition
                                       .ToNext()
                                       .IsTriggeredOn(approveDiscount)
                                       .WithFieldAssignments(fields =>
                                           fields.Add<ARInvoice.discDate>(
                                               field => field.SetFromToday())));
                               });
                           });

   In the code above, you have added a transition group where the initial workflow state is Postponed. In the transition group, you have done the following:

   • Added the transition to the next workflow state in the composite state by calling the ToNext method
   • Specified an action that triggered the transition in the IsTriggeredOn method
   • Used the WithFieldAssigments method to specify that the Cash Discount Date box should be assigned the business date when the transition is performed
2. Save your changes.