Chapter 1 — Introduction to Visual Basic 2010 Programming

Microsoft Visual Basic 2010
ONE
Introduction to Visual Basic 2010 Programming

1
Understand software and computer programs
State the role of a developer in creating computer
programs
Specify the use of a graphical user interface and
describe an event-driven program
Specify the roles of input, processing, output, and
data when running a program on a computer
Describe the arithmetic operations a computer
program can perform (+, -, *, /, and ^)
Chapter 1: Introduction to Visual Basic 2010 Programming 2
Objectives

1
Explain the logical operations a computer program can
perform ( equal, less than, greater than, not equal, greater
than or equal to, less than or equal to)
Define and describe the use of a database
Identify the use of a computer programming language in
general, and Visual Basic 2010 in particular
Explain the use of Visual Studio 2010 IDE when developing
Visual Basic 2010 programs
Specify the programming languages available for use with
Visual Studio 2010 (Visual Basic, C++, C#, F#)
Objectives

1
Discuss the .NET 4.0 Framework
Explain RAD
Describe classes, objects, and the .NET Framework
4.0 class libraries
Explain ADO.NET 4.0, ASP.NET 4.0, MSIL, and CLR
Specify the types of Visual Basic 2010 applications
Objectives

1
The set of instructions that directs a computer to
perform tasks is called computer software, or a
computer program
Chapter 1: Introduction to Visual Basic 2010 Programming
5
Introduction

1
Computer hardware is the physical equipment
associated with a computer
Introduction

1
Introduction
The basic function of many
computer programs is to
accept some form of data
(sometimes called input
data) manipulate the data in
some manner (sometimes
called processing), and
create some form of output
data usable by people or
other computers, and
storage

1
Introduction
In order for the computer to
execute a program:
Program and data must be
placed in the computer’s
random access memory
(RAM)
The central processing unit
(CPU) can access the
instructions in the program
and the data in RAM to
perform activities as
directed by the program

1
Saving, or storing, data refers to placing the data or
software electronically on a storage medium in a
persistent form.
Hard disk
Universal Serial Bus (USB) drive
Persistent data remains available even after the
computer power is turned off
Introduction

1
A computer program is designed and developed by people
known as computer programmers, or developers
Developers are people skilled in designing computer
programs and creating them using programming
languages
Applications may consist of several computer programs
working together to solve a problem
Computer programmers write the code for programs using
a programming language
Computer Programmers and
Developers

1
Computer Programmers and
Developers
Comments
Event-Handler
Code

1
Most Visual Basic 2010 programs are event-driven
programs that communicate with the user through a
graphical user interface (GUI)
A GUI usually consists of a window, containing a variety of
objects (icons, buttons, images)
An event means the user has initiated an action (a mouse
click or entering text) that causes the program to perform
the type of processing called for by the user’s action.
Clicking a button triggers an event, resulting in the program
performing the process called by the click.
Event-Driven Computer Programs
with a Graphical User Interface

1
Examples of events:
The user enters the account number in the Account
Number box
The user clicks the Display Account Balance button
The user clicks the Reset Window button to clear the
text boxes and prepare the user interface for the next
account number
Event-Driven Computer Programs
with a Graphical User Interface

1
Input Operation

1
Output Operation
73-0529
$13,432.85

1
In many programs, arithmetic operations are
performed on numeric data to produce useful output
Addition
Subtraction
Multiplication
Division
Exponentiation
Basic Arithmetic Operations

1
Computers, through the use of computer programs, can
compare numbers, letters, and special characters
The program will perform a processing task, based on the
result of the comparison
Logical operations:
Comparing to determine if two values are equal
Comparing to determine if two values are not equal
Comparing to determine if one value is greater than another
value
Comparing to determine if one value is less than another
value
Logical Operations

1
Logical Operations: Equal Condition

1
Logical Operations: Less Than
Condition

1 Logical Operations: Greater Than Condition

1
When you develop and write a program, it must be saved
on some type of storage medium (i.e., a disk)
When you want the program to run, you can cause the
program to load into RAM and execute it
The program you write also can save data
Banking applications must save account data
In most cases, data is stored in a database
Collection of data organized in a manner that allows
access, retrieval, and use of that data
However, data can also be saved in a text file
Saving Software and Data

1
Each program statement causes the computer to perform
one or more operations
The developer must follow the syntax, or programming
rules, of the programming language precisely
Many developers use a tool called Visual Studio 2010 to
create Visual Basic 2010 programs
Visual Studio 2010 is a type of integrated development
environment (IDE)
Provides services and tools that enable a developer to
code, test, and implement a single program or series of
programs
Visual Basic 2010 and Visual Studio 2010

1
Visual Studio 2010 IDE and Visual Basic 2010
Form Designer
Soluion Explorer
Properties
Error List

1
Visual Basic
Programming language that allows developers to easily
build complex Windows and Web programs, as well as
other software tools
Based on the BASIC language
C++
Derivative of the programming language, C
Visual C# (pronounced C Sharp)
Synthesis of the elegance and syntax of C++ with many of
the productivity benefits enjoyed in Visual Basic
Visual F# (pronounced F Sharp)
Multipurpose language known for its math-intensive focus
Programming Languages

1
.NET technologies and products were designed to
work together to allow businesses to connect
information, people, systems, and devices through
software
The .NET Framework provides tools and processes
developers can use to produce and run programs
Most recent version is .NET Framework 4.0
.NET Framework 4.0

1
.NET Class Library
A class is a named
group of program code
A button is an example
of a class
A class library stores
the class and makes the
class available to all
developers who need
to use it

1
A button created from a class is called an object, or
sometimes an instance of a class
The process of creating a Button object from the
Button class is called instantiation
Rapid application development (RAD) refers to the
process of using prebuilt classes to make application
development faster, easier, and more reliable
.NET Class Library

1
ADO.NET 4.0 (ActiveX Data Objects) provides the
functionality for a program to perform four primary
tasks when working with a database:
Get the data
Examine the data
Edit the data
Update the data
ADO.NET 4.0

1
ASP.NET 4.0 allows developers to use Visual Studio
2010 to build powerful, sophisticated Web
applications
Almost all .NET framework objects are available in
ASP.NET 4.0
Easy to deploy a Web application on a Web server
ASP.NET 4.0

1
Program compilation translates programming statements
into instructions that can be understood by the computer
Program compilation for a Visual Basic 2010 program
creates a set of electronic code expressed in an
intermediate language called the Microsoft Intermediate
Language (MSIL)
When the program is executed, a portion of .NET 4.0 called
the Common Language Runtime (CLR) reads the MSIL and
causes the actual instructions within the program to be
executed
Microsoft Intermediate Language (MSIL) and
Common Language Runtime (CLR)

1
Microsoft Intermediate Language (MSIL) and
Common Language Runtime (CLR)

1
Windows application
Program will run on a computer or other device that
supports the Windows GUI
Mobile application
Designed to run on mobile devices running the Windows
CE operating system
Web site application
Uses ASP.NET 4.0 and runs on a Web server
Types of Visual Basic 2010
Applications

1
Office application
Includes writing Visual Basic 2010 code to automate
and manipulate documents created using Microsoft
Office 2003, Office 2007, and Office 2010
Database application
Written using ADO.NET 4.0 to
reference, access, display, and update data stored
in a database
Other types of applications include console
applications, classes for class libraries, certain
controls to use in Windows applications, Web
services, and device-specific applications
Types of Visual Basic 2010
Applications

1
Understand software and computer programs
State the role of a developer in creating computer
programs
Specify the use of a graphical user interface and
describe an event-driven program
Specify the roles of input, processing, output, and
data when running a program on a computer
Describe the arithmetic operations a computer
program can perform
Summary

1
Explain the logical operations a computer program
can perform
Define and describe the use of a database
Identify the use of a computer programming
language in general, and Visual Basic 2010 in particular
Explain the use of Visual Studio 2010 when developing
Visual Basic 2010 programs
Specify the programming languages available for use
with Visual Studio 2010
Summary

1
Explain the .NET 4.0 Framework
Explain RAD
Describe classes, objects, and the .NET Framework
4.0 class libraries
Explain ADO.NET 4.0, ASP.NET 4.0, MSIL, and CLR
Specify the types of Visual Basic 2010 applications
Summary

Microsoft Visual Basic 2010
CHAPTER ONE COMPLETE
Introduction to Visual Basic 2010 Programming

Chapter 1 — Introduction to Visual Basic 2010 Programming

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Chapter 1 — Introduction to Visual Basic 2010 Programming