Beginning C# 2008-from Novice-to-professional - A2Z Dotnet

54CHAPTER 3 ■ LEARNING ABOUT STRING MANIPULATIONSAs in Chapter 2, we’ll create the solution as components, with three pieces: a Windowsapplication, a testing console application, and a class library. After you have created each ofthe projects, your workspace should look like Figure 3-1. Remember to add a reference to theLanguageTranslator class library (right-click References and choose Add Reference ➤ Project➤ LanguageTranslator). Also remember to set TestLanguageTranslator as the startup project.Figure 3-1. Structure of projects for the translation application in Visual C# Express SolutionExplorerBuilding the Translator ApplicationThe translation application, like the calculator application example in the previous chapter, isbuilt in pieces: the class library that performs translations based on data delivered by the userinterface, the tests, and the user interface. The individual pieces are components that can befit together like a jigsaw puzzle to create an application.■Note Components are a core part of your development toolbox. As you will see throughout the book,components allow you to reuse and modularize functionality. Components result in applications that aremaintainable and extendable. Of course, there are limits, and the advantages are not automatic. You willneed to properly design your application to benefit from using components.