vb.net project

TABLE OF CONTENTS

VB.NET

Programming........................................2

.NET FRAMEWORK ........................................... 3

CLR (Common Language Runtime)..........................................5

MSIL (Microsoft Intermediate Language)..................7

Common Language Specification..............................7

.NET Framework Class Library.................................................8

.NET Assemblies......................................................9

MICROSOFT VISUAL STUDIO ............................. 13

CREATING VISUAL BASIC.NET APPLICATION WITH

MICROSOFT VISUAL STUDIO ............................. 16

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VB.Net Programming

B.Net (Visual Basic.Net) ,d Object Oreinted1,

Event Driven2 dEI;wVj izksxzkfeax Hkk"kk

gS] tks .Net Framework ds lkFk dk;Z djrs gq;s

applications tSls forms, presentation foundation, class

libraries and console-based applications cukus ds fy;s

,d dynamic interface3 iznku djrh gSA VB.Net Hkk"kk

dks pykus ds fy;s .Net Framework ;qDr Developer

Tool dks iz;qDr djuk gh mfpr gSA bl gsrq ge

Microsoft ds IDE (Integrated Development

Environment) ;qDr Microsoft Visual Studio dk mi;ksx djrs

gSaA

V

VB.Net fofHkUu QhplZ j[krk gS tSls%

1 Object oriented: Those languages, which use objects like textbox, label etc for creating applications instead of commands.2 Event driven : Those languages, which attach any action like mouseover, click or key pressing with their object to trigger any event.3 Dynamic interface can modify its objects without reopening application or webpage.

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» Inheritance

» Parameterized Class Constructors

» Function Overloading

» Multi-Threading

» Structured Error Handling

» Creating NT Services

» VB.NET not backward compatible with VB6.

VB.Net ds ckjs esa foLrkj ls tkuus ls igys ge dqN

egRoiw.kZ fcanqvkas ij tkudkjh izkIr djrs gSaA

.Net Framework

Microsoft Visual Studio

.Net Framework

.Net Framework ekbØkslkW¶V ds vuqlkj ,d u;k

dEI;wfVax IysVQkWeZ gSA bl IysVQkWeZ us mPp

Lrj ds fMfLVªC;wVsM okrkoj.k esa cgqr gh ljyrk of 29

ls ,Iyhds'ku cukus dh lqfo/kk iznku dh gSA ;g

IysVQkWeZ izksxzkejkas dks ,slh lqfo/kk;as

miyC/k djkrk gS] ftlesa midj.k vkSj nwljs flLVe dh

ckm.Mªht lekIr gks tkrh gSaA bldh eq[; fo'ks"krk,¡

fuEu gSa%

» CLR (Common Language Runtime)

» MSIL

» below

» Windows Form

» Web Services

» Cross Language Interoperability4

.Net framework fofHkUu izdkj dh ,sIyhds'kUl

tSls Windows Applications, Mobile Apps, Web Apps,

Components, XML Web Services5 vkfn cukus ds fy;s

loksZRre IysVQkeZ gSA

4 Cross Language Interoperability: Inherit another language's coding in an application with one language.5 XML Web Services : .Net Framework avails creating XML Schema Definitions for databases.

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.Net Platform, Language Neutral gksus dk nkok

djrk gSA .Net Environment CLR vkSj ykbczsfj;kas ds

lsV ds vklikl gh dsafnzr jgrk gSA CLR ds vuq:i

Hkk"kk vius dksMkas dks vius ewy dksMkas dh

ctk; baVjehfM,V Hkk"kk esa rS;kj djrh gS vkSj

fQj ;g baVjehfM,V Hkk"kk (MSIL) bu dksMksa dks

Native Machine Code esa cny nsrh gSA

VB.Net dk mi;ksx djrs le; vki fdlh Hkh nwljh

izksxzkfeax Hkk"kk ds dksM blesa fcuk fdlh fnDdr

ds 'kkfey dj ldrs gSa] D;kasfd ;s lHkh .Net Object

gSa] vkSj vkil esa ,d nwljs ls tqM+s gSaA ,slk

blfy;s laHko gks ikrk gS] D;kasfd VB.Net vius

Native Code ds ctk; igys MSIL ls tqM+rk gS] vkSj

fQj Native Code lsA bu Intermediate Codes dks

Managed Codes dgk tkrk gSA

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.Net Framework SDK ds ,d fgLls ds :i esa

command-line compiler, VBC.EXE Hkh install gksrk

gSA

.Net Framework ds nks eq[; components

gSa%

1. CLR

2..Net Framework Class Library

CLR (Common Language

Runtime)

tSlk fd uke ls Li"V gS] CLR ,d ,slk ek/;e iznku djrk

gS] tks fd lHkh .Net Languages ds fy;s common gSA

CLR gh application ds execution vkSj dbZ dk;Z tSls

memory management, system resources dks access

djus] security services vkfn ds fy;s ftEesnkj gSA bl

izdkj dh O;oLFkk fofHkUu Win32 izksxzkfeax

Hkk"kkvkas ds chp dk varjky [kRe dj nsrh gS] of 29

D;kasfd lHkh .Net Languages dh ,d lh gh laHkkouk,

¡ gksrh gSaA blds vykok Common Language

Runtime, applications dks ,d managed environment

ds vanj run gksuk nsrk gSA .Net esa cukbZ xbZ

executabls dks CLR vyx ls invoke djus ds ctk; Lo;a

gh invoke djrk gSA

CLR Architecture

CLR ds 3 eq[; vax gSa%

1. Common Type System

2. MSIL

3. Managed Apps

blds lkFk gh fofHkUu vU; dEiksusUV~l feydj CLR

dks dk;Z;ksX; cukrs gSaA

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fuEu xq.kkas ls ;qDr gksus ds dkj.k CLR izeq[k

gS%

a. Running code eSust djuk

a.Type Safety6 verify djrk gSA

b.Garbage Collection7 o error handling dh

lqfo/kk iznku djrk gSA

6 Type Safety: One language should not cross with other language's data type.7 Garbage Collection: Extra codes that are not going to execute on CPU.

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Figure 1. CLR Structure

c.Semi-trusted code ds fy;s code access eas

lqj{kk iznku djrk gSA

b. Common Type System8 dh lqfo/kk

a. Value Types (interger, float, user defined,

etc)

b. Objects, Interfaces

c. System Resources ij access iznku djukA

a. Native API, COM interop, etc.

MSIL (Microsoft Intermediate

Language)

MSIL vFkkZr~ Microsoft Intermediate Language ,d

high-level assembly programming language gS] tks fd

object-oriented gS o CPU independent set of

instructions provide djrh gS u fd CPU-dependent sets

of instructions dks ykxw djus okyh executables

8 Common Type System: .Net framework languages share same data types. of 29

cukrh gSA MSIL bl izdkj dh ,d dkWeu Hkk"kk gS fd

,d ls izksxzkfeax VkLDl vyx vyx Hkk"kkvksa ls

fy[kus ij Hkh ,d tSlk IL code iznku djrs gSaA

Metadata, code esa ykxw fd;s x;s types ls tqM+k

set of information gSA bl izdkj dh tkudkjh

signatures, functions o procedures, members in types,

and members in externally referenced types j[k ldrh

gSA Metadata dk mÌs'; code dks .Net Framework dks

describe djuk gSA

Common Language Specification

CLS ,d fu;ekas dk set gS] tks mu features dks

specify djrk gS] tks lHkh Hkk"kkvkas ds fy;s

support djus pkfg;sA bldk eq[; mÌs'; .NET

framework dks multiple languages support djus nsuk

gSA CLS, ,sls features vkSj usage conventions ftuds

Åij fuHkZj fd;k tk ldrk gS ds ckjs esa] Language of 29

designers vkSj Dykl ykbczsjh ds e/; le>kSrk ,d

agreement gSA tSls fd public names dks case ij

fuHkZj ugha djuk pkfg;s] D;aksfd dbZ Hkk"kk,¡

case sensitive ugha gksrhA bldk vFkZ ;g ugha gS

fd CLR ds Åij lHkh Hkk"kk,¡ case sensitive ugha

gSaA

.NET Framework Class Library

Class Library, .Net Framework dk ,d egRoiw.kZ

dEiksusaV gSA blesa ,sls iwoZ fu/kkZfjr classes dk

lewg gksrk gS] ftudk iz;ksx dkWeu fØ;kdykikas

ds fy;s izR;sd LFkku ij fd;k tk ldrk gSA bl Class

Library dh otg ls MsoyilZ dks dbZ dslkas eas cgqr

lqfo/kk gksrh gSA bu classes dks fofHkUu dk;ksZa

ds fy;s bLrseky fd;k tkrk gSA .Net Framework eas

Class Library, Namespace, Object Groups esa vjsat

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gksrh gS] rkfd ,d tSls QaD'ku dj ldsaA Namespace

ds varxZr structures, delegates, interfaces Hkh

lekfgr gksrs gSaA .Net Framework Class Library esa

yxHkx 100 Namespace gksrs gSaA

.Net Framework dh ykbczsjh cgqr gh foLr`r

vkSj self describing gSA ;g 2500 ls Hkh vf/kd

classes j[krk gSA ;g ykbczsjh form-oriented gksrh

gSA ;g Windows GUI-based9 client applications dks

vklkuh ls cukus dh lqfo/kk iznku djrh gSA Standard

GUI components tSls buttons, textboxes, menus,

scrollbars, etc. vkfn event handling ds lkFk QkWeZ

esa Mkys tk ldrs gSaA blds eq[; components,

• Base Class: Networking, security, I/O, files, etc. • Data

and XML Classes

•Web Services/UI •Windows UI

gSA

9 GUI Based : Graphical User Interface based of 29

.NET Assemblies

tc .Net, Codes dks ;wfuV esa xzqi djrh gS] rks

bls Assemblies dgk tkrk gSA Assembly esa ,d flaxy

Qkby gksrh gS] ;k dEiksusaV gksrs gS] tks eYVhiy

Qkbykas esa fMLVªhC;wV gksrs gSaA bu leLr

dslkas esa ,d Q kby assembly manifest dh gksrh

gS] tks self-describing gksrh gSA

ClassicWin32 development environments esa tSls fd

VB6, Visual C++ ] lkWlZ dksMZ dks dEikbylZ }kjk

parse fd;k tkrk gS] tks fd binary executable files

cukrs gSa] tks fd rqjar baVjizsV djds vkWijsfVax

flLVe }kjk ju dh tk ldrh gSA okLro esa VB6 vkSj

C++ ds lkFk cukbZ xbZ win32 apps runtime dk

mi;ksx djrh gSaA ijarq ;fn vkids ikl fofHkUu

izksxzkfeax Hkk"kkvkas ds lkFk cukbZ of 29

xbZ ,sIyhds'ku gS] rc vkidks muds fy;s fuf'pr

runtimes dks baLVkWy djuk gksxkA .Net

development esa pkgs fdlh Hkh .Net Language ds

lkFk vki ,Iyhds'ku cuk;s] compilers }kjk ,d vlsEcyh

cukbZ tkrh gS] tks fd ,d .Net executable code gksrh

gS] vkSj vko';d :i ls MSIL code vkSj metadata

ds }kjk compose dh tkrh gSA

bl izdkj lHkh .Net framework ds dEiksusUV~l feydj

fuEu izfØ;k ds QyLo:i ,sIyhds'ku dks ju djrs gSa%

1-fdlh Hkh Hkk"kk esa cuk;h x;s ,sIyhds'ku ds

dksM dks ml Hkk"kk ds gh dEikykbj }kjk CTS

(Common Type System) ds nk;js esa jgrs gq;s

assembly IL code (MSIL) esa dEikby djrk gSA bu

dksM~l dks managed codes dgrs gSaA vfrfjDr

unmanaged code lh/ks Operating system ij

execute gksrs gSa rFkk Managed Code CLR ij of 29

execution ds fy;s Hkstk tkrk gSA CLR, execution

ds le; vko';d lHkh fjlkslsZl o Dyklsl dh ,Dlsl

iznku djrk gSA dksM dks Just-In-Time

Compiler }kjk Native code esa compile fd;k tkrk

gSA ;g dksM OS dks Hkstk tkrk gSA

Li"V gS fd .Net framework Language o CPU

Independent gSA D;kasfd lHkh language ds

dEikbyj MSIL vFkkZr~ ,d gh Hkk"kk esa compile

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Figure 2. How .Net Framework works with codes using its components (executing and running codes)

djrs gSa] ftlls code gj Hkk"kk ds fy;s ogh jgrk gSA

lkFk gh CLR }kjk dEikby dksM native code esa

compile gksrk gS] tks fd operating system dks CPU

independent instructions set nsrk gSA ;s instruction

set CPU }kjk execute fd;s tkrs gSaA

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Microsoft Visual Studio

VB.Net ds lkFk ,Iyhds'kUl cukus ds fy;s vf/kdrj

MS Visual Studio dk gh iz;ksx fd;k tkrk gSA bl

izksQs'kuy MsoyiesaV Vwy eas ,Iyhds'kUl dks

fMtkbu djus ds fy;s VwYl dk lewg gksrk gS] vkSj

lkFk gh fMcfxax ds fy;s Hkh VwYl lekfgr gksrs

gSaA

bu VwYl esa d`f=e cqf)erk dk lekos'k gksrk

gS] ftlls vusd xyfr;k¡ vius vki gh lekIr gks tkrh

gSaaA dksM Vkbi djrs le; lts'ku Hkh lkeus vkrs

gSaA VS (Visual Studio) esa vusd ,sls VwYl

vkSj ,M&vkWu gksrs gSa] ftudh lgk;rk ls vki

lkW¶Vos;j dh tk¡p cM+h ljyrk ls dj ldrs gSaA

VS dh esu LØhu fp=kuqlkj fn[kkbZ nsrh gSA

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Tabs Bar

Standard Toolbar

Solution Explorer

Toolbox

Menu Bar

xsd

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Figure 5. .Net Framework and Visual Studio.Net

Creating Visual Basic.Net

Application with Microsoft

Visual Studio

VB.net dks testify djus ds fy;s Microsoft Visual

Studio 2008 Professional Edition o Microsoft .NET

Framework Version 3.5 SP1 dk mi;ksx fd;k x;k gSA

Visual Studio esa izkstsDV 'kq: djus ds fy;s File

Menu ds New->project ij tk;saA

Project Type esa Windows ij fDyd djasA Templates

esa Windows Forms Application dk p;u djasA

okafNr Name, Location o Solution Name Hkjas o OK ij

fDyd djsaA

vc Form 1 uke ls ,d QkWeZ lkeus vk tk;sxkA

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Solution explorer esa windowsformapplication1 (In this

project Calculator) ds Åij right fDyd djds properties

option ij fDyd djus ij fofHkUu properties eksfMQkbZ

dj ldrs gSaA

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Properties dk n`'; bl izdkj gksrk gS%

Form 1 esa VwyckWDl dk mi;ksx djds textbox insert

djrs gSa] mls properties }kjk uke (LCD) nsrs gSaA

VwyckWDl dk mi;ksx djds buttons bulVZ djrs gSaA

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fdlh Hkh daVªksy ds Åij double click djds Backhand

Codings dh tk ldrh gSaA bl izkstsDV esa form 1 ds

daVªksYl ds Åij dh xbZ gSa] os gSa%

Public Class Calculator Dim FirstNumber As Double Dim temp As Double Dim Operation As String Dim Result As Double

Private Sub aboutform()

End Sub Private Sub bequal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bequal.Click Dim SecondNumber As Long

SecondNumber = LCD.Text If Operation = "+" Then Result = FirstNumber + SecondNumber ElseIf Operation = "-" Then Result = FirstNumber - SecondNumber ElseIf Operation = "*" Then Result = FirstNumber * SecondNumber ElseIf Operation = "/" Then Result = FirstNumber / SecondNumber

End If FirstNumber = Result LCD.Text = Result End Sub

Private Sub n1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n1.Click If LCD.Text = "0" Then LCD.Text = "1" ElseIf LCD.Text = temp Then LCD.Text = "1" ElseIf LCD.Text = result Then LCD.Text = "1" Else LCD.Text = LCD.Text & "1" End If End Sub Private Sub n2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n2.Click If LCD.Text = "0" Then LCD.Text = "2" ElseIf LCD.Text = temp Then LCD.Text = "2" ElseIf LCD.Text = result Then LCD.Text = "2" Else

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LCD.Text = LCD.Text & "2" End If End Sub Private Sub n3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n3.Click If LCD.Text = "0" Then LCD.Text = "3" ElseIf LCD.Text = temp Then LCD.Text = "3" ElseIf LCD.Text = result Then LCD.Text = "3" Else LCD.Text = LCD.Text & "3" End If End Sub Private Sub n4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n4.Click If LCD.Text = "0" Then LCD.Text = "4" ElseIf LCD.Text = temp Then LCD.Text = "4" ElseIf LCD.Text = result Then LCD.Text = "4" Else LCD.Text = LCD.Text & "4" End If End Sub Private Sub n5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n5.Click If LCD.Text = "0" Then LCD.Text = "5" ElseIf LCD.Text = temp Then LCD.Text = "5" ElseIf LCD.Text = result Then LCD.Text = "5" Else LCD.Text = LCD.Text & "5" End If End Sub Private Sub n6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n6.Click If LCD.Text = "0" Then LCD.Text = "6" ElseIf LCD.Text = temp Then LCD.Text = "6" ElseIf LCD.Text = result Then LCD.Text = "6" Else LCD.Text = LCD.Text & "6" End If End Sub Private Sub n7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n7.Click If LCD.Text = "0" Then LCD.Text = "7" ElseIf LCD.Text = temp Then LCD.Text = "7" ElseIf LCD.Text = result Then LCD.Text = "7" Else LCD.Text = LCD.Text & "7"

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End If End Sub Private Sub n8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n8.Click If LCD.Text = "0" Then LCD.Text = "8" ElseIf LCD.Text = temp Then LCD.Text = "8" ElseIf LCD.Text = result Then LCD.Text = "8" Else LCD.Text = LCD.Text & "8" End If End Sub Private Sub n9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n9.Click If LCD.Text = "0" Then LCD.Text = "9" ElseIf LCD.Text = temp Then LCD.Text = "9" ElseIf LCD.Text = result Then LCD.Text = "9" Else LCD.Text = LCD.Text & "9" End If End Sub Private Sub n0_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles n0.Click If LCD.Text = "0" Then LCD.Text = "0" ElseIf LCD.Text = temp Then LCD.Text = "0" ElseIf LCD.Text = result Then LCD.Text = "0" Else LCD.Text = LCD.Text & "0" End If End Sub Private Sub bc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bc.Click If LCD.Text = "0" Then LCD.Text = "0" ElseIf LCD.Text = temp Then LCD.Text = "0" Else LCD.Text = LCD.Text & "00" End If End Sub Private Sub bac_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bac.Click LCD.Text = "0" End Sub Private Sub badd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles badd.Click FirstNumber = LCD.Text temp = FirstNumber Operation = "+" End Sub Private Sub bsub_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bsub.Click FirstNumber = LCD.Text

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temp = FirstNumber Operation = "-" End Sub Private Sub bmult_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bmult.Click FirstNumber = LCD.Text temp = FirstNumber Operation = "*" End Sub Private Sub bdiv_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bdiv.Click FirstNumber = LCD.Text temp = FirstNumber Operation = "/" End Sub

Private Sub Calculator_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

Private Sub babout_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles babout.Click AboutBox1.Show() End SubEnd Class

bu lHkh steps dks iw.kZ djds] ,d u;k QkWeZ

aboutbox1 cukrs gSaA blds fy;s s project > Add

windows form esa tkrs gSaA Common Items esa

about box dks flysDV djrs gSaA

vc mldh fofHkUu properties igys gh fn;s gq;s rjhds

ls edit djrs gSaA

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u;s QkWeZ dk n`';%

,d vU; QkWeZ splansh screen Hkh cukrs gSa] ftldh

properties cnyrs gSa vkSj bl izdkj (complete fd;k

gqvk) fn[krk gSA ;g bl izdkj cuk;k x;k gS fd 5

lsds.M ckn Lo;a dh gV tkrk gS ,oa form 1

(calculator) iznf'kZr djrk gSA

bl izdkj iw.kZ fd;k x;k izkstsDV fuEu LØhUl j[krk

gS% of 29

1. Splash Screen

2. Form1 (Name : Calculator)

3.

4. Aboutbox1 (Name : About Calculator)

5.

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bl izdkj gekjk izkstsDV calculator iw.kZ gqvkA bls

build o publish dj bldk installation setup Hkh cuk;k

tk ldrk gSA blds fy;s build > Publish ij tk;asA

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vb.net project

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