Object-Oriented ASP.NET

Introduction

ASP.NET brings a whole new world of functionality, power, and ease of rapid development for web programmers. Some of these features, such as the advent of code-behind, are well documented and have become standard practice in everyday development. Another feature ASP.NET brings us is development with a real, compiled language. We can now leverage the object-oriented aspects of these new languages and put them to work in our code. We can take advantage of inheritance, polymorphism, and encapsulation when writing web apps while still maintaining an Microsoft DNA-style n-tier architecture.

I'm not going to try to explain these OO design concepts because they are already the subject of a great many articles (and books). For example, you could try this article on CodeProject for an introduction.

I will be showing a simple example of how you can use inheritance and encapsulation in ASP.NET. I will show how you can customize a datagrid by encapsulating some behavior in a subclass of the datagrid, and thereby making the derived DataGrid class re-usable across multiple forms or applications. I'll be using C# for this example, but the same principles apply to VB.NET.

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