Titlebook: Building Client/Server Applications with VB .NET; An Example-Driven Ap Jeff Levinson Book 2003 Jeff Levinson 2003 .NET..NET framework.ADO.N

Indict

Revisiting Objects and Rules,. 3, “Creating the Application Infrastructure,” you created your first set of business objects, which you used to retrieve data for the application’s regions. If you remember the object model presented in Chapter 3 (included in Figure 7-1 for reference), then you-will notice the Territory object’s dependency on the Region object.

感情

Creating a Web Forms Interface,. you will add a Web interface to your application. You will approach it from two ways: the first as a frontend to the Web service you created in the previous chapter and the second as a frontend that hooks directly to the components you created in Chapters 3 to 10.

Counteract

Understanding Application Architecture: An Overview,o-tier, three-tier, and n-tier applications and describes how they fit into a modern enterprise. Then this chapter covers these architectures from a traditional point of view and showcases these application architectures with an emphasis on distributed applications. This includes a discussion of eac

Allure

Congruous

甜得發(fā)膩

Handling Errors with Class, because your application is popping up error messages. And what is worse is that the application is crashing, and in some cases it is crashing Windows or affecting other applications. So what happened? You tested your application. You fixed all the bugs you found. You fixed all the bugs the testers

寵愛

Building Business Objects,at the business objects are supposed to implement are not implemented correctly, the rules are implemented in the user interface, or the rules are implemented solely in the database. Each of these three issues has brought more than one system to its knees. I have seen application development cancell

搬運(yùn)工

Creating the Windows User Interface, on to developing the mechanisms that you will use to build the user interface. You can do many things to give the user a good experience with your application. In this chapter you will concentrate on building not only a functional user interface but one that looks good. This includes incorporating

microscopic

Reusing Code, blank lines and Windows Forms-generated code, but not comments). That is a lot of work for just two sets of classes that retrieve only two tables worth of data. In this chapter you will look at two ways of reducing the amount of code that your application needs. First, you will consolidate some of

omnibus

Understanding Server-Side Business Rules,port that your business rules have been broken, and package your code to be reusable. The last major concept you need to learn is the difference between client-side and server-side business rules. In a Windows application this is much more important than in a Web application. The reason for this is