Chapter 14. Dialogs, Controls, and Page Setup

In this chapter, we look into the implementation of the following:

• Custom dialogs: The Dialog class is intended to be inherited by subclasses and equipped with controls.
• Controls: The Control class and its subclasses. There are controls for edit fields, check boxes, radio buttons, list boxes, and combo boxes.
• Converters: Between strings and other values. For instance, when the user inputs text that represents a numerical value, it is possible to add a converter that converts the text to a value, or gives an error message if the text does not hold a valid value.
• Page Setup: Where we extend the Dialog class. The dialog is used when setting page settings for a document of the StandardDocument class. It handles information for headers, footers, and margins.