Step 3: Adding a Workflow for the Specific Value of the Workflow-Identifying Field

In this step, you will add a workflow for the Simple value of the Order Type box. This workflow has three workflow states (which are OnHold, Completed, and Paid) and the following transitions:

From the OnHold to Completed workflow state, which is triggered by the Complete action
From the Completed to Paid workflow state, which is triggered by the OnCloseDocument event

You will add these workflow states and transitions to the screen configuration in the extension of the RSSVWorkOrderEntry_Workflow class.

Tip: You do not need to add actions and event handlers used in this workflow because they are already added in the original screen configuration defined in the RSSVWorkOrderEntry_Workflow class.

To add the new workflow, do the following in the static Configure method of the RSSVWorkOrderEntry_Workflow_Extension class:

In the lambda expression for the UpdateScreenConfigurationFor method, after calling the FlowTypeIdentifierIs method, call the WithFlows method and add a workflow for the Simple value of the UsrOrderType field as shown in the following code.
```
                .WithFlows(flows => flows
                    .Add<OrderTypes.simple>(flow =>
                        getSimpleBehavior(flow)))
```
You have specified the value for the workflow-identifying field as the type parameter of the Add method.

Add the private static getSimpleBehavior method, and specify the list of states of the new workflow as shown in the following code.

        private static Workflow.IConfigured getSimpleBehavior(
            Workflow.INeedStatesFlow flowState)
        {
            return flowState
            .WithFlowStates(states =>
            {
                states.Add<RSSVWorkOrderEntry_Workflow.States.onHold>(flowState =>
                {
                    return flowState
                      .IsInitial()
                      .WithActions(actions =>
                      {
                          actions.Add(g => g.Complete, a => a
                          .IsDuplicatedInToolbar()
                          .WithConnotation(ActionConnotation.Success));
                      });
                });
                states.Add<RSSVWorkOrderEntry_Workflow.States.completed>(flowState =>
                {
                    return flowState
                        .WithFieldStates(fieldstates =>
                        {
                            fieldstates.AddField<RSSVWorkOrder.customerID>(state =>
                                state.IsDisabled());
                            fieldstates.AddField<RSSVWorkOrder.serviceID>(state =>
                                state.IsDisabled());
                            fieldstates.AddField<RSSVWorkOrder.deviceID>(state =>
                                state.IsDisabled());
                        })
                        .WithActions(actions =>
                        {
                            actions.Add(g => g.CreateInvoiceAction, a => a
                            .IsDuplicatedInToolbar()
                            .WithConnotation(ActionConnotation.Success));
                        })
                        .WithEventHandlers(handlers =>
                        {
                            handlers.Add(g => g.OnCloseDocument);
                        });
                });
                states.Add<RSSVWorkOrderEntry_Workflow.States.paid>(flowState =>
                {
                    return flowState
                        .WithFieldStates(fieldstates =>
                        {
                            fieldstates.AddField<RSSVWorkOrder.customerID>(state =>
                                state.IsDisabled());
                            fieldstates.AddField<RSSVWorkOrder.serviceID>(state =>
                                state.IsDisabled());
                            fieldstates.AddField<RSSVWorkOrder.deviceID>(state =>
                                state.IsDisabled());
                        });
                });
            });
        }

In the code above, you have added the following workflow states:

OnHold: You have specified that the Complete action should be available in this workflow state.
Completed: You have specified which fields should be unavailable in this worklfow state. You have also specified that the CreateInvoice action and the OnCloseDocument workflow event handler should be available in this workflow state.
Paid: You have specified which fields should be unavailable.

In the private static getSimpleBehavior method, after the call of the WithFlowStates method, define the transitions by using the WithTransitions method as the following code shows.

            .WithTransitions(transitions =>
            {
                transitions.AddGroupFrom<RSSVWorkOrderEntry_Workflow.States.onHold>(
                    transitionGroup =>
                {
                    transitionGroup.Add(transition => transition
                        .To<RSSVWorkOrderEntry_Workflow.States.completed>()
                        .IsTriggeredOn(graph => graph.Complete));
                });
                transitions.AddGroupFrom<
                    RSSVWorkOrderEntry_Workflow.States.completed>(
                    transitionGroup =>
                {
                    transitionGroup.Add(transition => transition
                        .To<RSSVWorkOrderEntry_Workflow.States.paid>()
                        .IsTriggeredOn(graph => graph.OnCloseDocument));
                });
            });

Build your project.