The Previous and Next buttons

We have a Next and a Previous buttons on each form, but we have yet to configure these buttons. The way we can achieve Next and Previous button behavior in the workflow is to have a pool variable called nextStep and every time the Next or Previous button is clicked, we can set the nextStep variable to the name of the step, and in the transitions from one step to another we can check for the value of nextStep.

1. In the form, first make a backward transition from all the steps that are the endpoints of the forward transition. The final pool should look like this :

   

   Figure 3.11: Workflow after adding backward transitions

2. Now, open the first form of the workflow, Welcome, and click on the BookTickets button.

3. In the Actions tab, add an action that sets the next step to the variable nextStep. The way to do this is by inputting BookTickets in the Groovy script in the expressions field and saving it to the variable nextStep.

4. Similarly, in the SubmitReport button, type SubmitReport...