You know, the kind of sites many of you (including myself) are building right now.Part one deals with the design of the application: what business objects do you need to fulfill the requirements of the application?Besides the forementioned SQL scripts and database, the download also contains the full source for the demo application in C#.
This is part 1 of the article series "Building Layered Web Applications" that shows you how to build N-Layer applications with Microsoft ASP. These articles teach you how to design, build and use custom business objects in your web application.
For more information about the translation, check out this blog post.
In this article series I'll show you how to design, build and implement reusable object oriented classes that are easy to use and maintain.
The objects created from these classes are often referred to as business objects so that's the term I'll use in these articles.
The process goes through the following 6 steps: I'll revisit this diagram at the end of the article and add more detail to it. NET 1.0, layered development was brought to web applications on the Microsoft platform.
While previous versions of ASP (now referred to as "classic ASP") allowed for some separation in the form of COM components or ASP classes, this usually wasn't done as it was quite cumbersome and hard to maintain. NET it's much easier to create reusable, object oriented classes that can be consumed by web applications and other types of applications. - I have written a new series on N-Layer design as a major follow up to this one. The design I am going to show you in these articles is a simplified version of a design you would use in a real world application. The target audience for this series are developers that are ready to make the switch from using controls with custom business objects. NET 2 and C# is necessary while some knowledge about object oriented design certainly helps.Generally, layer refers to a conceptual separation of the application, while tier defines physical boundaries.This article talks mainly about layers and presents a design where quite often most layers run on the same physical system, with some of them even in the same process space.This DAL then talks to the database to perform selects, inserts, updates and deletes.