Book Image

Visual Basic Quickstart Guide

By : Aspen Olmsted
Book Image

Visual Basic Quickstart Guide

By: Aspen Olmsted

Overview of this book

Whether you’re an absolute beginner or an experienced developer looking to learn the Visual Basic language, this book takes a hands-on approach to guide you through the process. From the very first chapters, you'll delve into writing programs, exploring core concepts such as data types, decision branching, and iteration. Additionally, you’ll get to grips with working with data structures, file I/O, and essential object-oriented principles like inheritance and polymorphism. This book goes beyond the basics to equip you with the skills to read and write code across the entire VB family, spanning VB Script, VBA, VB Classic, and VB.NET, enabling you to handle legacy code maintenance with ease. With clear explanations, practical examples, and hands-on exercises, this book empowers you to tackle real-world software development tasks, whether you're enhancing existing projects or embarking on new ones. It addresses common challenges like distinguishing between the variations of the VB programming language to help you choose the right one for your projects. Don't let VB's extensive legacy daunt you; embrace it with this comprehensive guide that equips you with practical, up-to-date coding skills to overcome the challenges presented by Visual Basic's rich history of over two decades.
Table of Contents (27 chapters)
Free Chapter
1
Part 1:Visual Basic Programming and Scripting
9
Part 2:Visual Basic Files and Data Structures
14
Part 3:Object-Oriented Visual Basic
20
Part 4:Server-Side Development

The Request and Response Model

In Classic ASP and ASP.NET, the Request and Response model describes how client-server communication is handled. Both Classic ASP and ASP.NET are web application frameworks that allow you to build dynamic web applications using server-side technologies. The Request and Response model is at the core of this communication process.

The following is an explanation of the Request part of the model:

  • The request represents the information sent by the client (usually a web browser) to the server. It includes HTTP headers, form data, query parameters, cookies, and more.
  • When a user accesses a web page or sends a form submission, the client generates an HTTP request and sends it to the server.
  • The server-side code in your application processes this request and responds accordingly.
  • Classic ASP and ASP.NET provide various objects and properties to access the request data.

The following is an explanation of the Response part of the model...