Using a Standard Navigation Bar 

Use

You can use a standard navigation bar in your applications. The following pushbuttons are displayed by default:

●     Previous step

●     Next step

●     Exit

●     You can define one other pushbutton of your choice.

You can define how the application reacts when a user chooses these pushbuttons.

Procedure

The procedure for adding a standard navigation bar corresponds to the procedure that is described for other visual elements in Configuring the Front-End. If you want to use and adjust the pushbuttons available in the standard navigation bar, proceed as follows:

...

       1.      In the application, create a context node that matches the elements of the navigation bar.

       2.      Include the standard structure for the navigation bar in the class in the back-end that processes the application logic.

       3.      Define the required properties for the values of each of the variables. You can make various settings, such as defining whether a pushbutton is visible, and if so, the text displayed on it. You can do this in the INIT clause in the  process_action method.

       4.      Context attributes can be used to transfer the values from the back-end to the front-end.