Delphi Cookbook - Third Edition

Getting ready

What we want to do in this recipe is to dynamically create a class by looking for it by name among the classes that have been linked in the executable (or loaded from dynamic packages). The goal is to change the behavior of the program using only an external file, without relying on a lot of parameters and complex configuration code; just create the right class. Wonderful! Let's say you've developed a program to do orders. Your program allows only one-line orders, so you cannot buy different things in the same order (this is an example). The form is shown in the following:

Figure 2.1 : The main form

There is a dataset field ...