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Microsoft Visual Basic 2010

ONE

Introduction to Visual Basic 2010 Programming

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1

Understand software and computer programs

State the role of a developer in creating computerprograms

Specify the use of a graphical user interface anddescribe an event-driven program

Specify the roles of input, processing, output, anddata when running a program on a computer

Describe the arithmetic operations a computerprogram can perform (+, -, *, /, and ^)

Chapter 1: Introduction to Visual Basic 2010 Programming 2

Objectives

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Explain the logical operations a computer program can

perform ( equal, less than, greater than, not equal, greaterthan or equal to, less than or equal to)

Define and describe the use of a database

Identify the use of a computer programming language ingeneral, and Visual Basic 2010 in particular

Explain the use of Visual Studio 2010 IDE when developingVisual Basic 2010 programs

Specify the programming languages available for use withVisual Studio 2010 (Visual Basic, C++, C#, F#)


Objectives

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1

Discuss the .NET 4.0 Framework

Explain RAD

Describe classes, objects, and the .NET Framework4.0 class libraries

Explain ADO.NET 4.0, ASP.NET 4.0, MSIL, and CLR

Specify the types of Visual Basic 2010 applications


Objectives

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1

The set of instructions that directs a computer toperform tasks is called computer software, or a

computer program

Chapter 1: Introduction to Visual Basic 2010 Programming5

Introduction

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1

Computer hardwareis the physical equipmentassociated with a computer


Introduction

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1Introduction


The basic function of many

computer programs is toaccept some form of data(sometimes called inputdata) manipulate the data insome manner (sometimes

called processing), andcreate some form of outputdata usable by people orother computers, andstorage

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1Introduction


In order for the computer to

execute a program: Program and data must be

placed in the computersrandom access memory(RAM)

The central processing unit

(CPU)can access theinstructions in the programand the data in RAM toperform activities asdirected by the program

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Saving, or storing, data refers to placing the data or

software electronically on a storage medium in apersistent form.

Hard disk

Universal Serial Bus (USB) drive

Persistentdata remains available even after thecomputer power is turned off


Introduction

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A computer program is designed and developed by people

known as computer programmers, or developers Developersare people skilled in designing computer

programs and creating them using programminglanguages

Applicationsmay consist of several computer programsworking together to solve a problem

Computer programmers write the code for programs usinga programming language


Computer Programmers andDevelopers

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1


Computer Programmers andDevelopers

Comments

Event-HandlerCode

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Most Visual Basic 2010 programs are event-driven

programsthat communicate with the user through agraphical user interface(GUI)

A GUI usually consists of a window, containing a variety ofobjects (icons, buttons, images)

An eventmeans the user has initiated an action (a mouse

click or entering text) that causes the program to performthe type of processing called for by the users action.

Clicking a button triggers an event, resulting in the programperforming the process called by the click.


Event-Driven Computer Programswith a Graphical User Interface

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Examples of events:

The user entersthe account number in the AccountNumber box

The user clicksthe Display Account Balance button

The user clicksthe Reset Window button to clear the

text boxes and prepare the user interface for the nextaccount number


Event-Driven Computer Programswith a Graphical User Interface

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Input Operation

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Output Operation

73-0529

$13,432.85

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In many programs, arithmetic operations are

performed on numeric data to produce useful output Addition

Subtraction

Multiplication

Division Exponentiation


Basic Arithmetic Operations

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1


Logical Operations: Equal Condition

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Logical Operations: Equal Condition

L i l O ti L Th

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1Logical Operations: Less Than

Condition


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1Logical Operations: Greater Than Condition


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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

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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 2010tocreate Visual Basic 2010 programs

Visual Studio 2010 is a type of integrated developmentenvironment(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

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Visual Studio 2010 IDE and Visual Basic 2010

Form Designer

Soluion Explorer

Properties

Error List

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1 Visual Basic

Programming language that allows developers to easilybuild complex Windows and Web programs, as well asother 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 ofthe productivity benefits enjoyed in Visual Basic

Visual F# (pronounced F Sharp)

Multipurpose language known for its math-intensive focus


Programming Languages

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.NET technologies and products were designed to

work together to allow businesses to connectinformation, people, systems, and devices throughsoftware

The .NET Frameworkprovides tools and processes

developers can use to produce and run programs Most recent version is .NET Framework 4.0


.NET Framework 4.0

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1.NET Class Library


A classis a named

group of program code A button is an example

of a class

A class librarystoresthe class and makes the

class available to alldevelopers who needto use it

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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 applicationdevelopment faster, easier, and more reliable


.NET Class Library

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ADO.NET 4.0 (ActiveX Data Objects) provides the

functionality for a program to perform four primarytasks when working with a database:

Get the data

Examine the data

Edit the data Update the data


ADO.NET 4.0

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ASP.NET 4.0 allows developers to use Visual Studio

2010 to build powerful, sophisticated Webapplications

Almost all .NET framework objects are available inASP.NET 4.0

Easy to deploy a Web application on a Web server


ASP.NET 4.0

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Program compilationtranslates 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 anintermediate language called the Microsoft IntermediateLanguage (MSIL)

When the program is executed, a portion of .NET 4.0 calledthe Common Language Runtime (CLR)reads the MSIL andcauses the actual instructions within the program to beexecuted


Microsoft Intermediate Language (MSIL) andCommon Language Runtime (CLR)

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Microsoft Intermediate Language (MSIL) andCommon Language Runtime (CLR)

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Windows application

Program will run on a computer or other device thatsupports 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 2010Applications

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Understand software and computer programs

State the role of a developer in creating computerprograms

Specify the use of a graphical user interface anddescribe an event-driven program

Specify the roles of input, processing, output, anddata when running a program on a computer

Describe the arithmetic operations a computerprogram can perform


Summary

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1

Explain the logical operations a computer program

can perform Define and describe the use of a database

Identify the use of a computer programminglanguage in general, and Visual Basic 2010 in particular

Explain the use of Visual Studio 2010 when developingVisual Basic 2010 programs

Specify the programming languages available for usewith Visual Studio 2010


Summary

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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

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Microsoft Visual Basic 2010

CHAPTER ONE COMPLETEIntroduction to Visual Basic 2010 Programming

chapter 012013

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