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

Return statement

In VB, the Return statement is used to exit a function or a Sub procedure and return control to the calling code. It is used to provide a result or value back to the caller if necessary. The Return statement can be used in different contexts, depending on whether you work with a function or a procedure.

Here is an example of using the Return statement in the VB function:

Function myMult(n1 As Integer, n2 As Integer) As Integer
    Dim m As Integer
    m = n1 * n2
    Return m
End Function

In this example, the Return statement returns the result of the two numbers, n1 and n2, multiplied together to the caller. We saw earlier that a return value can also be set by assigning the function name a value. The second method does not stop execution at that point compared to the Return statement, which will immediately return to the calling code.

Here is an example of using the Return statement in the VB...