ASP.NET Developer's JumpStart By Paul D. Sheriff, Ken Getz
Table of Contents
Part I. Introduction to Microsoft .NET and ASP.NET
Understand the concept of namespaces
Identify the .NET namespaces you will use most
Learn how to use the .NET namespaces in your code
Examine examples of the most common classes and methods
Microsoft has created one of the largest class libraries anywhere with the advent of the .NET Framework. This class library, part of the Common Language Runtime (CLR), is the underlying library for all .NET languages. This library of classes, methods, and properties is used both during the development cycle and at runtime. This library allows any .NET language to have access to a wealth of building blocks that shorten the development cycle for developers.
What makes this framework so important is that it allows developers using any .NET language to have access to the same base classes and the same base data types, and those types and classes behave exactly the same way in any .NET language. If you need to create a multithreaded application, for example, you'll find the System.Threading classes in the .NET Framework. You do not need to "roll your own" solutions using the underlying Windows API. The actual syntax you will use to interact with the objects varies from language to language, but the base classes themselves will be the same.
Microsoft .NET developers will spend a large percentage of their time working with .NET Framework objects, because there are classes to help with almost any type of application you might develop. The .NET Framework will make programming easier in the long run no matter what .NET language you are using.