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Visual BasicVisual Basic (VB) is a

third-generationeent-drien!rogra""inglanguage# $t is also anintegrateddeelo!"ent

eniron"ent ($%E)&ro" Microso&t &or itsCOM !rogra""ing"odel#

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Visual BasicVisual Basic 'as deried

&ro" BS$C and enalesthe ra!id a!!lication

deelo!"ent (R%) o&gra!hical user inter&ace(*U$) a!!lications+ accessto dataases using %ataccess O,ects+ Re"ote

%ata O,ects+ or ctie%ata O,ects+ andcreation o& ctiecontrols and o,ects#

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Visual BasicScri!ting

languages such

as Visual Basic

&or !!lications(VB) and

VBScri!t are

s.ntacticall.

si"ilar toVisual Basic+ut !er&or"

di/erentl.#

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Visual Basic$n 0122+ lan Coo!er

created a isual!rogra""ing language

(code-na"ed 3Ru.4)that allo'ed 5indo'susers to uild 36inder4-li7e shells# 8e called it3a shell constructionset#4 &terde"onstrating Ru. toBill *ates+ Microso&t!urchased it#

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Visual BasicVisual Basic+ user

e9!erience+interaction design+!ersonas+ *oal-%irected design+

About Face+ TheInmates Are RunningThe Asylum+ VB#

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Visual Basict the ti"e+ *ates co""ented that the

innoation 'ould hae a 3!ro&ound e/ect4 ontheir entire !roduct line# Microso&t decided notto release the !roduct as a shell &or users+ utrather to trans&or" it into a !ro&essionaldeelo!"ent tool . "arr.ing it to their:uic7BS$C !rogra""ing language# The.called the !roduct Visual Basic#

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Visual Basic.NETVB#Net is also a Microso&t Co""on Language

$n&rastructure language created . Microso&t#

Visual Basic #NET 'as designed+ as !art o& theco"!an.;s #NET !roduct grou!+ to "a7e 5eserices a!!lications easier to deelo!#

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Visual Basic.NETVB#NET is the ?rst &ull. o,ect-oriented

!rogra""ing (OO@) ersion o& Visual Basic+and as such+ su!!orts OO@ conce!ts suchas astraction+ inheritance+ !ol."or!his"#

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Visual Basic 1.0

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Visual Basic 2.0Visual Basic A#> 'as release in Noe"er

011A#

The !rogra""ing eniron"ent 'as easier touser+ and its s!eed 'as i"!roed#

Notal.+ &or"s eca"e instant o,ects#

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Visual Basic 3.0Visual Basic #> 'as release in the su""er o&

011 and ca"e in Standard and @ro&essionalersions#

VB included ersion 0#0 o& the Microso&t Jet%ataase Engine that could read and 'rite Jet(or ccess) 0#9 dataases#

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Visual Basic 4.0Visual Basic #> 'as released in ugust 011D#

VB #> 'as the ?rst ersion that could create

A-it as 'ell as 0=-it 5indo's !rogra"s#$t also introduced the ailit. to 'rite non-*U$

classes in Visual Basic#

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Visual Basic 5.0Visual Basic D#> (6eruar. 011)+ Microso&t

released Visual Basic e9clusiel. &or A-itersions o& 5indo's#

$t also introduced the ailit. to create custo"user controls+ as 'ell as the ailit. to co"!ileto natie 5indo's e9ecutale code+ s!eeding

u! calculation-intensie code e9ecution#

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Visual Basic 5.0$t 'as also used as an introductor. &or" o&

Visual BasicF a regular #e9e !ro,ect could ecreated and run in the $%E+ ut not co"!iled#

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Visual Basic 6.0Visual Basic =#> (Mid 0112) i"!roed in

nu"er o& areas including the ailit. to create'e-ased a!!lications#

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Visual Basic 6.0

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Visual Basic 7 (1.1) $n addition+ Visual Basic #NET A>> 'as

aailale in the Visual Studio.NET AcademicEdition (VS>E)# VS>E is distriuted to acertain nu"er o& scholars &ro" each countr.'ithout cost#

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Visual Basic 7.0

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Visual Basic 8.0On Noe"er A>>D+ Microso&t released Visual

Studio A>>D+ 'hich included Visual Basic 2and the #Net 6ra"e'or7 ersion A#

Visual Basic A>>D is the na"e used to re&er tothe Visual Basic #NET+ Microso&t haingdecided to dro! the #NET !ortion o& the title#

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Visual Basic 8.0

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Visual Basic 8.06or this release+ Microso&t added "an. &eatures+

includingF

Edit and Continue

The y !seudo-na"es!ace+ 'hich !roidesF eas. access to certain areas o& the #NET 6ra"e'or7 that

other'ise reHuire signi?cant code to access

d.na"icall.-generated classes (notal. y.Forms)

$"!roe"ents to the VB-to-VB#NET conerter The aoe &unctions (!articularl. y ) are intended to

rein&orce Visual Basic #NET;s &ocus as a ra!ida!!lication deelo!"ent !lat&or" and &urtherdi/erentiate it &ro" CI#

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Visual Basic 9.0Visual Basic 1#> 'as released together 'ith the

Microso&t #NET 6ra"e'or7 #D on 01 Noe"er A>>#

6or this release+ Microso&t added "an. &eatures+

includingF true conditional o!erator+ $$&(condition as oolean+

true!art+ &alse!art)+ to re!lace the $$& &unction#non."ous t.!esSu!!ort &or L$N:

La"da e9!ressionsML Literals T.!e $n&erenceE9tension "ethods

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Changes in VB Languagell data are o,ects+ ased on the classF

System.Object #E#g# class su!!orts 5indo's &or"sF

System.Windows.Forms.Form#

The uilt-in VB &unctionalit. is enca!sulatedin a na"es!ace called System#E#g Collection has e re!laced .

System.Collections#

Old control are gone+ and ne' ones haea!!eared#

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Changes in VB LanguageMan. 7e.'ords are rena"ed or gone+ 'hile

so"e ne' added#E#g# Gosub re"oed

Strict data t.!ing is no' en&orcedVariale "ust e declared e&ore used . de&ault#Cannot assign one data t.!e to another+ ut can

use Ctype to conert et'een t.!es#

The sa"e as in VCKK and CI#Structured e9ce!tion handlingF Try…

Catch…Finally #

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Changes in VB Languages5hen calling !rocedures+ "ust use

!arentheses#

@ara"eters are . de&ault !assed . alue+instead o& . re&erence#

Su!!orts constructors and destructors &or use'hen initialiGing an o,ect o& a class#

If…Then state"ents are no' short-circuited#

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Changes in VB Language nu"er o& ne' co"!ound o!eratorsE#g# 9KA

The And + Or + !ot and "or o!erators haechanged &ro" it'ise to ooleano!erators# Mean'hile+ the it'ise ersionsare #itAnd + #itOr + #it!ot + and #it"or #

No de&ault !ro!ert. su!!ortedE#g# VB=F Te9tBo9038ello4 VB#NetF Te9tBo90#Te9t38ello4

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Changes in VB Language Three ne' data

t.!es

Char F unsigned 0=-

it

Short F signed 0=-it

$ecimal F signed1=-it (re!laces%ariant )

Integer Type VB 6.0 VB.NET

8 bit Byte Byte

16 bit Integer Short

32 bit Long Integer

64 bit Not Applicable Long

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Comments!Single line only

&'( Single line only

!!! #summary$%& comments#'summary$e9#

$& "essageBo9 38ello4 Then

This is a co""ent

End $&

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Class DeclarationPublic Class classNa"e

End Classe9#

Public Class E"!lo.ee

End Class

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Declaration of VariableDim arialeNa"e As dataT.!e

e9#

%i" "essageContent s String%i" ".Nu"er s $nteger

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Conditional StatementsIf condition Thenstate"ent

Else If conditionA Thenstate"entA

Elsestate"ent

End If e9#

If "essageContent 38ello 5orld4 ThenMessageBo9#Sho'(38ello 5orld4)

Else if "essageContent 38ello4 ThenMessageBo9#Sho'(38ello4)

ElseMessageBo9#Sho'(38ello 5orld 8ello4)

End If

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Looping Statements%o 5hile

Do While condition

state"entLoop

e9#

Do While ".Nu"er A>

MessageBo9#Sho'(".Nu"er)

".Nu"er ".Nu"er K 0

Loop

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Looping Statements6or

For condition

State"entNext

e9#

For ".Nu"er 0> To A>

MessageBo9#Sho'(".Nu"er)

Next

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Logical OperatorsAndAlso !rElse And !r "or Not

e9#

$& ".Nu"er 0> And "essageContent 38ello5orld4 Then

#

End $&

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