In this chapter, you will learn how to:
Build the credit card validation example that we use throughout this book to demonstrate the development of an XML Web service.
Understand the functionality contained in the CreditCardValidator.dll library that is used in the examples.
Understand the fundamental program elements provided by the Microsoft .NET Framework that are used to create an XML Web service.
The HelloWorld service you developed in Chapter 2, was very simple and provided no useful functionality. Starting in this chapter, we begin developing an XML Web service to perform credit card validation, a service that offers a solution to a real-world need. We will start with a simple solution ...