Amc

NATURAL LANGUAGE PROCESSINGUSING PROBABLISTIC CONTEXT FREE

GRAMMER

Submitted in Partial Fulfillment of The Requirements For the Award of the Degree of

Bachelor Of Computer ApplicationsIn

Submitted By

Under the Guidance of Mrs. MASHIYA AFROZE Msc, M.phil

DEPARTMENT OF COMPUTER APPLICATION

PATRICIAN COLLEGE OF ARTS AND SCIENCE ADYAR

AdyarChennai – 600 020

1

BONAFIDE CERTIFICATE

University Register Number PK 74231

This is to Certify that the project work entitled as NATURAL LANGUAG E

PROCESSING is the Bonafied Project Work done by R.murugan in Partial

Fulfillment for the Award of the Degree Bachelor of Computer Application Year of

2009-2010

Project Guide Head of the Department

Submitted during the University Project Viva Voce held on ____________________

at

Patrician College of Arts & Science, Chennai.

Internal Examiner External Examiner

__________________________ _________________________

Date: _____________________ Date: _____________________

CONTENT

S.No Table Of Contents Page No.

2

1

2

3

4

5

6

7

8

9

10

Abstract

Introduction

2.1 RSK Enterprises

Project Discription

3.1 Alpha Editor 20083.2 Modules in Project

System Requirements

4.1 System Configuration4.2 Software Configuration

Software Concept

5.1 Windows XP5.2 .Net5.3 Visual Basic .Net

System Diagram

Source Code

Snap Shot

Conclusion

Bibliography

1

4

67

1314

161819

34

37

69

79

81

ACKNOWLEDGMENT

3

I thank the God, the Almighty the Creator of life who

gives me faith and showers me with blessing on each and every effort I

put in.

I thank Rev.Bro.M.K.Francis the Correspondent of

the institution for his untiring work on endless growth of the college in

the matter of Infrastructure and Educational dimension.

I express my profound gratitude to my Principal

Prof.Eugiene Pinto, principal, Patrician college of Arts and Science for

giving me wonderful opportunity to work on this project.

I thank Mrs.Geetha Rufus, Vice principal, Patrician

college of arts and science for her support to do my project.

I ever indepted to B.Anandapriya M.C.A., M.phil,

HOD, computer science department for the encouragement and

guidance I have received

I Express my thanks to Mrs. Shanthi.AL Msc, Mphil

my project guidance and her continuous support while working on this

project.

Last but not the Least my sincere thanks to friends

who have encouraged to the nice get up of my project.

ABSTRACT

4

This Service Center project deals with fully computer service.

This service center provides Annual Maintenance Contract (AMC)

also to the system. AMC is for commercial and residential types. We

can also make the service for Non-AMC customers. We can register

the complaints and make the service. We can register the complaints

and make the service. The customer can renew the AMC No. after

the expiry date.

The modules present in this project is as follows

Login Form

Complaint Registration

AMC Registration

Complaint Status

AMC Activation

Financial Report

This Service Center is implemented using Visual Basic .net

2005 as front end and MS. Access as back end in the platform of

Windows XP.

5

INTRODUCTION

6

PROJECT DESCRIPTION

7

PROJECT DESCRIPTION

This Service Center project deals with fully computer service.

This service center provides Annual Maintenance Contract (AMC)

also to the system. AMC is for commercial and residential types. We

can also make the service for Non-AMC customers. We can register

the complaints and make the service. We can register the complaints

and make the service. The customer can renew the AMC No. after

the expiry date.

The modules present in this project is as follows

Login Form

This form allows only authorized person to enter into the

project. If some unauthorized person tries to enter, he cant login.

Product Details

Here we can add new products with its name, its ID, and price.

Similarly, we can edit, update, and delete particular product from

the database.

Complaint Registration

If the customer is under AMC, then his AMC No. will be

retrieved to take his information. The problem suggested is entered

to make the rectification easily.

8

AMC Registration

In this form, we can add the new customer in two ways. They

are

1. commercial

2. Residential

For commercial customers, the AMC charges will be little high.

It is because, the commercial refers to the company, shop, school,

college etc. Residential customer refers to the resident. The AMC

charges will be little less compared to the commercial.

Complaint Status

We here see the status of the registered complaint weather the

service has been defined, under observing, finished. If the problem is

finished, then here we can see the price for service. If the customer is

under AMC, the service charges won’t be applied. If the customer is

non AMC, then charges applied.

AMC Activation

The customer gets expiry date of the AMC according to the

years they register. After the expiry, if the customer is willing to

register, their AMC No. is renewed.

Financial Report

We can see the financial report by selecting the start date to

end date. The calculation of the company’s financial position is

displayed.

9

SYSTEM

REQUIREMENTS

10

SYSTEM CONFIGURATION

PROCESSOR : Pentium IV

PROCESSOR SPEED : 2.66 GHz.

MAIN MEMMORY : 256 MB. RAM.

CACHE MEMORY : 256 KB.

HARD DISK DRIVE : 40 GB.

KEY BOARD : 101 Keys.

MOUSE : Optical / Scroll.

11

SOFTWARE CONFIGURATION

OPERATING SYSTEM : WINDOWS XP

FRONT END : VISUAL BASIC .NET

VERSION : 2005

BACK END : MS. ACCESS

VERSION : 2003

12

SOFTWARE

CONCEPTS

13

SOFTWERE PROFILE

WINDOWS XP

Windows XP is a line of operating systems produced by

Microsoft for use on personal computers, including home and

business desktops, notebook computers, and media centers. The

name "XP" is short for "experience". Windows XP is the successor

to both Windows 2000 Professional and Windows Me, and is the first

consumer-oriented operating system produced by Microsoft to be

built on the Windows NT kernel and architecture. Windows XP was

first released on 25 October 2001, and over 400 million copies were in

use in January 2006, according to an estimate in that month by an

IDC analyst. It is succeeded by Windows Vista, which was released to

volume license customers on 8 November 2006, and worldwide to the

general public on 30 January 2007. Direct OEM and retail sales of

Windows XP ceased on 30 June 2008, although it is still possible to

obtain Windows XP from System Builders (smaller OEMs who sell

assembled computers) until 31 July 2009 or by purchasing Windows

Vista Ultimate or Business and then downgrading to Windows XP.

The most common editions of the operating system are

Windows XP Home Edition, which is targeted at home users, and

14

Windows XP Professional, which offers additional features such as

support for Windows Server domains and two physical processors,

and is targeted at power users, business and enterprise clients.

Windows XP Media Center Edition has additional multimedia

features enhancing the ability to record and watch TV shows, view

DVD movies, and listen to music. Windows XP Tablet PC Edition is

designed to run ink-aware applications built using the Tablet PC

platform. Two separate 64-bit versions of Windows XP were also

released, Windows XP 64-bit Edition for IA-64 (Itanium) processors

and Windows XP Professional x64 Edition for x86-64. There is also

Windows XP Embedded, a componentized version of the Windows

XP Professional, and editions for specific markets such as Windows

XP Starter Edition.

Windows XP is known for its improved stability and efficiency

over the 9x versions of Microsoft Windows. It presents a significantly

redesigned graphical user interface, a change Microsoft promoted as

more user-friendly than previous versions of Windows. New software

management capabilities were introduced to avoid the "DLL hell"

that plagued older consumer-oriented 9x versions of Windows. It is

also the first version of Windows to use product activation to combat

software piracy, a restriction that did not sit well with some users

and privacy advocates. Windows XP has also been criticized by some

15

users for security vulnerabilities, tight integration of applications

such as Internet Explorer 6 and Windows Media Player, and for

aspects of its default user interface. Later versions with Service Pack

2, and Internet Explorer 7 addressed some of these concerns.

During development, the project was codenamed "Whistler",

after Whistler, British Columbia, as many Microsoft employees skied

at the Whistler-Blackcomb ski resort.

As of the end of November 2008, Windows XP is the most

widely used operating system in the world with a 66.31% market

share, having peaked at 85% in December 2006.

16

FRONT END

17

Visual studio .net

. NET

.net (network) is a generic top-level domain (gTLD) used on the

Internet's Domain Name System. The .net gTLD is currently

operated by VeriSign. Registrations are processed via accredited

registrars and internationalized domain names are also accepted (see

details).

.net is one of the original top-level domains (despite not being

mentioned in RFC 920), created in January 1985. It was initially

intended to be used only for the computers of network providers

(such as Internet service providers). However, there are no formal

restrictions on who can register a .net domain name. Therefore, while

still popular with network operators, it is often treated as a

second .com. It is currently the third most popular top-level domain,

after .com and .de.

In addition to being an abbreviation for "network", "net" is

also a romanisation of the Russian word нет ("no" or "not", also

commonly romanised as the more authentically pronounced "nyet"),

and a domain name like "object.net" can be interpreted as "there is

no object". Some domains exploit this fun, for example mozga.net

(brain absent). Some online poker or other gambling sites operate

18

real-money games at a .com address and games without actual stakes

(promoted as being for fun or education) at the same name in .net.

This can be used to get around legal issues regarding the advertising

of online gambling in the United States, since the .net site can be

promoted legally, but such promotion helps make people aware of

the name of the real-money site even in jurisdictions where such

things are of questionable legality.[citation needed]

Operation of .net from 2005

VeriSign, the operator of .net after acquiring Network

Solutions, had its operational contract expire on June 30, 2005.

ICANN, the organization responsible for domain management,

sought proposals from organizations to operate it for at least six

years beyond that date. VeriSign won the contract bid, and secured

its control over the .net registry for another six years.

VISUAL BASIC.NET

Visual Basic (VB) is a programming language based on the

original DOS language called BASIC (Beginners' All-purpose

Symbolic Instruction Code). VB.NET 2005, an offshoot of Visual

Basic, is an object-oriented programming language based on VB that

is implemented using the Microsoft .NET framework. The basic

syntax of the Visual Basic language remains unchanged in VB.NET

19

2005, but includes additional features such as structured exception

handling and short circuited expressions to enhance the

infrastructure of the programming language. Developers have found

VB.NET to be controversial as some of the software and

developmental changes clash with the original language within VB

and have caused compatibility issues. Visual Studio .NET is the

predominant integrated development environment (IDE) that

VB.NET developers employ.

Visual Basic programmers supporting VB.NET indicate that

language constructs and user interface features in the newer system

have caused programming issues within the original VB system.

Developers using VB.NET recognize that the upgraded VB system

incorporates contemporary object oriented programming paradigms

in a more stable environment than was originally thought possible.

Visual Basic .NET is a programming language that can be used

to create winforms or webapp applications and create programming

based in any object-oriented programming language (OOP),

ADO.NET, Multithreading or Windows Services. VB.NET

programming utilizes concepts connected to string encryption, forms

inheritance, regular expressions and deployment.

20

Visual Basic (VB), formerly called Visual Basic .NET

(VB.NET), is an object-oriented computer language that can be

viewed as an evolution of Microsoft's Visual Basic (VB) implemented

on the Microsoft .NET framework. Its introduction has been

controversial, as significant changes were made that broke backward

compatibility with older versions and caused a rift within the

developer community.

Versions of Visual Basic .NET

As of November 2007, there are four versions of Visual

Basic .NET that were implemented by The Visual Basic Team

Visual Basic .NET (VB 7)

The original Visual Basic .NET was released alongside Visual

C# and ASP.NET in 2002. C# — widely touted as Microsoft's answer

to Java — received the lion's share of media attention, while VB.NET

(sometimes known as VB7) was not widely covered. As a result, few

outside the Visual Basic community paid much attention to it.

Those who did try the first version found a powerful but very

different language under the hood, with disadvantages in some areas,

21

including a runtime that was ten times as large to package as the VB6

runtime and an increased memory footprint.

Visual Basic .NET 2003 (VB 7.1)

Visual Basic .NET 2003 was released with version 1.1 of

the .NET Framework. New features included support for the .NET

Compact Framework and a better VB upgrade wizard.

Improvements were also made to the performance and reliability of

the .NET IDE (particularly the background compiler) and runtime.

In addition, Visual Basic .NET 2003 was also available in the

Visual Studio .NET 2003 Academic Edition (VS03AE). VS03AE is

distributed to a certain number of scholars from each country for

free.

Visual Basic 2005 (VB 8.0)

Visual Basic 2005 is the name used to refer to the update to

Visual Basic .NET, Microsoft having decided to drop the .NET

portion of the title.

For this release, Microsoft added many features, including:

22

• Edit and Continue - probably the biggest "missing

feature" from Visual Basic .NET, allowing the modification of code

and immediate resumption of execution

• Design-time expression evaluation

• The My pseudo-namespace (overview, details), which

provides:

o easy access to certain areas of the .NET Framework that

otherwise require significant code to access

o dynamically-generated classes (notably My.Forms)

• Improvements to the VB-to-VB.NET converter The

Using keyword, simplifying the use of objects that require the

Dispose pattern to free resources

• Just My Code, which hides boilerplate code written by

the Visual Studio .NET IDE

• Data Source binding, easing database client/server

development

The above functions (particularly My) are intended to

reinforce Visual Basic .NET's focus as a rapid application

development platform and further differentiate it from C#.

23

Visual Basic 2005 introduced features meant to fill in the gaps

between itself and other "more powerful" .NET languages, adding:

• .NET 2.0 languages features such as:

o generics Partial classes, a method of defining some parts

of a class in one file and then adding more definitions later;

particularly useful for integrating user code with auto-generated

code

o Nullable Types

• XML comments that can be processed by tools like NDoc

to produce "automatic" documentation

• Operator overloading

• Support for unsigned integer data types commonly used

in other languages

'IsNot' operator patented

One other feature of Visual Basic 2005 is the conversion of 'If

Not X Is Y' to 'If X IsNot Y' which gained notoriety when it was

found to be the subject of a Microsoft patent application.

Visual Basic 2005 Express

24

As part of the Visual Studio product range, Microsoft created a

set of free development environments for hobbyists and novices, the

Visual Studio 2005 Express series. One edition in the series is Visual

Basic 2005 Express Edition, which was succeeded by Visual Basic

2008 Express Edition in the 2008 edition of Visual Studio Express.

The Express Editions are targeted specifically for people

learning a language. They have a streamlined version of the user

interface, and lack more advanced features of the standard versions.

On the other hand, Visual Basic 2005 Express Edition does contain

the Visual Basic 6.0 converter, so it is a way to evaluate feasibility of

conversion from older versions of Visual Basic

Visual Basic 2008 (VB 9.0)

Visual Basic 9.0 was released together with the Microsoft .NET

Framework 3.5 on November 19, 2007.

For this release, Microsoft added many features, including:

• A true conditional operator If (boolean, value, value) to

replace the IIF function.

• Anonymous types

• Support for LINQ

25

• Lambda expressions

• XML Literals

• Type Inference

Visual Basic 'VBx' (VB 10.0)

Visual Basic 10, also known as VBx, will offer support for the

Dynamic Language Runtime (DLR). VB 10 is planned to be part of

Silverlight 2.0.

Relation to older versions of Visual Basic (VB6 & previous)

Whether Visual Basic .NET should be considered as just

another version of Visual Basic or a completely different language is

a topic of debate. This is not obvious, as once the methods that have

been moved around and that can be automatically converted are

accounted for, the basic syntax of the language has not seen many

"breaking" changes, just additions to support new features like

structured exception handling and short-circuited expressions. Two

important data type changes occurred with the move to VB.NET.

Compared to VB6, the Integer data type has been doubled in length

from 16 bits to 32 bits, and the Long data type has been doubled in

length from 32 bits to 64 bits. This is true for all versions of VB.NET.

A 16-bit integer in all versions of VB.NET is now known as a Short.

26

Similarly, the Windows Forms GUI editor is very similar in style and

function to the Visual Basic form editor.

The version numbers used for the new Visual Basic (7, 7.1, 8, 9,

...) clearly imply that it is viewed by Microsoft as still essentially the

same product as the old Visual Basic.

The things that have changed significantly are the semantics —

from those of an object-based programming language running on a

deterministic, reference-counted engine based on COM to a fully

object-oriented language backed by the .NET Framework, which

consists of a combination of the Common Language Runtime (a

virtual machine using generational garbage collection and a just-in-

time compilation engine) and a far larger class library. The increased

breadth of the latter is also a problem that VB developers have to

deal with when coming to the language, although this is somewhat

addressed by the My feature in Visual Studio 2005.

The changes have altered many underlying assumptions about

the "right" thing to do with respect to performance and

maintainability. Some functions and libraries no longer exist; others

are available, but not as efficient as the "native" .NET alternatives.

27

Even if they compile, most converted VB6 applications will require

some level of refactoring to take full advantage of the new language.

Documentation is available to cover changes in the syntax, debugging

applications, deployment and terminology.

Comparative samples

The following simple example demonstrates similarity in

syntax between VB and VB.NET. Both examples pop up a message

box saying "Hello, World" with an OK button.

Classic VB example:

Sub Command1_Click()

MsgBox "Hello, World"

End Sub

A VB.NET example:

Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)

Handles Button1.Click

MessageBox.Show("Hello, World")

End Sub

28

• Note that all procedure calls must be made with

parentheses in VB.NET, whereas in VB6 there were different

conventions for functions (parentheses required) and subs (no

parentheses allowed, unless called using the keyword Call).

• Also note that the names Command1 and Button1 are

not obligatory. However, these are default names for a command

button in VB6 and VB.NET respectively.

• In VB.NET, the Handles keyword is used to make the

sub Button1_Click a handler for the Click event of the object

Button1. In VB6, event handler subs must have a specific name

consisting of the object's name ("Command1"), an underscore ("_"),

and the event's name ("Click", hence "Command1_Click").

• There is a function called MsgBox in the

Microsoft.VisualBasic namespace which can be used similarly to the

corresponding function in VB6. There is a controversy about which

function to use as a best practice (not only restricted to showing

message boxes but also regarding other features of the

Microsoft.VisualBasic namespace). Some programmers prefer to do

things "the .NET way", since the Framework classes have more

features and are less language-specific. Others argue that using

language-specific features makes code more readable (for example,

using int (C#) or Integer (VB.NET) instead of System.Int32).

29

• In VB 2008, the inclusion of "Byval sender as Object,

Byval e as EventArgs" has become optional.

The following example demonstrates a difference between VB6

and VB.NET. Both examples unload the active window.

Classic VB Example:

Sub cmdClose_Click()

Unload Me

End Sub

A VB.NET example:

Sub btnClose_Click(ByVal sender As Object, ByVal e As EventArgs)

Handles btnClose.Click

Me.Close()

End Sub

Note the 'cmd' prefix being replaced with the 'btn' prefix,

conforming to the new convention previously mentioned.

Visual Basic 6 did not provide common operator shortcuts. The

following are equivalent:

VB6 Example:

Sub Timer1_Timer()

Me.Height = Me.Height - 1

30

End Sub

VB.NET example:

Sub Timer1_Tick(ByVal sender As Object, ByVal e As

EventArgs) Handles Timer1.Tick

Me.Height -= 1

End Sub

Criticism

Many long-time Visual Basic users have complained about

Visual Basic .NET because initial versions dropped a large number of

language constructs and user interface features that were available

in VB6 (which is now no longer sold), and changed the semantics of

those that remained; for example, in VB.NET parameters are (by

default) passed by value, not by reference. Detractors refer

pejoratively to VB.NET as Visual Fred or DOTNOT. On March 8,

2005, a petition was set up in response to Microsoft's refusal to

extend its mainstream support for VB6.

VB.NET's supporters state that the new language is in most

respects more powerful than the original, incorporating modern

31

object oriented programming paradigms in a more natural, coherent

and complete manner than was possible with earlier versions.

Opponents tend not to disagree with this, instead taking the position

that although VB6 has flaws in its object model, the cost in terms of

redevelopment effort is too high for any benefits that might be gained

by converting to VB.NET. Independent developers producing

software for Internet distribution have also taken issue with the size

of the runtime.

It is simpler to decompile languages that target Common

Intermediate Language, including VB.NET, compared to languages

that compile to machine code. Tools like .NET Reflector can provide

a close approximation to the original code due to the large amount of

metadata provided in CIL.

Microsoft supplies an automated VB6-to-VB.NET converter

with Visual Studio .NET, which has improved over time, but it

cannot convert all code, and almost all non-trivial programs will need

some manual effort to compile. Most will need a significant level of

code refactoring to work optimally. Visual Basic programs that are

mainly algorithmic in nature can be migrated with few difficulties;

those that rely heavily on such features as database support,

32

graphics, unmanaged operations or on implementation details are

more troublesome.

However in 2005 ArtinSoft, the company that developed the

VB6-to-VB.NET converter for Microsoft that comes with Visual

Studio .NET, developed a migration tool called the ArtinSoft Visual

Basic Upgrade Companion. This tool expands upon the migration

wizard included in Visual Studio .NET by providing some automated

code refactoring, such as type inference for late-bound variables—

producing explicitly typed variables—and conversion to structured

error handling, among many other tweaks that improve code quality.

Using artificial intelligence algorithms, it is possible for this

new tool to recognize certain code patterns that can be reorganized

into more structured versions, potentially yielding a higher

quality .NET code. For example, the tool is able to automatically

recognize commonly used patterns of “On Error GoTo”, analyze

them, and convert them to code blocks that use “Try ... Catch”

instead of the legacy error handling model—in many cases with no

human intervention. However, a line-by-line conversion will not be

able to create the object-oriented style of programming that is at the

heart of .NET programming. Other tools such as NewCode's use a

33

model-driven approach to enable users to re-engineer the application

structure on a model, prior to .NET code generation.

In addition, the required runtime libraries for VB6 programs

are provided with Windows 98 SE and above, while VB.NET

programs require the installation of the significantly larger .NET

Framework. The framework is included with Windows Vista,

Windows XP Media Center Edition, Windows XP Tablet PC Edition,

Windows Server 2008 and Windows Server 2003. For other

supported operating systems such as Windows 2000 or Windows XP

(Home or Professional Editions), it must be separately installed.

Microsoft's response to developer dissatisfaction has focused

around making it easier to move new development and shift existing

codebases from VB6 to VB.NET. Their latest offering is the VBRun

website, which offers code samples and articles for:

• completing common tasks in VB6, like creating a print

preview

• integrating VB6 and VB.NET solutions (dubbed VB

Fusion)

34

Cross-platform and open-source development

The creation of open-source tools for VB.NET development

have been slow compared to C#, although the Mono development

platform provides an implementation of VB.NET-specific libraries

and a VB.NET 8.0 compatible compiler written in VB.NET, as well

as standard framework libraries such as Windows Forms GUI

library.

Hello world example

The following is a very simple VB.NET program, a version of

the classic "Hello world" example created as a console application:

Module Module1

Sub Main()

Console.WriteLine("Hello, world!")

End Sub

End Module

The effect is to write the text Hello, world! to the command

line. Each line serves a specific purpose, as follows:

Module Module1

35

This is a module definition, a division of code similar to a class,

although modules can contain classes. Modules serve as containers of

code that can be referenced from other parts of a program. This

module matches the name of the code file: Module1.vb

Sub Main()

This is the entry point where the program begins execution.

Sub is an abbreviation for "sub-procedure."

Console.WriteLine("Hello, world!")

This line performs the actual task of writing the output.

Console is a system object, representing a command-line console

where a program can input and output text. The program calls the

Console method WriteLine, which causes the string passed to it to be

displayed on the console.

36

BACK ENDBACK END

37

5.4 MICROSOFT ACCESS

Microsoft Office Access, previously known as Microsoft Access,

is a relational database management system from Microsoft that

combines the relational Microsoft Jet Database Engine with a

graphical user interface and software development tools. It is a

member of the 2007 Microsoft Office system.

Access stores data in its own format based on the Access Jet

Database Engine. It can also import or link directly to data stored in

other Access databases, Excel, SharePoint lists, text, XML, Outlook,

HTML, dBase, Paradox, Lotus 1-2-3, or any ODBC-compliant data

container including Microsoft SQL Server, Oracle, MySQL and

PostgreSQL. Software developers and data architects can use it to

develop application software and non-programmer "power users"

can use it to build simple applications. It supports some object-

oriented techniques but falls short of being a fully object-oriented

development tool.

38

History

Access version 1.0 was released in November 1992, quickly

followed in May of 1993 by an Access 1.1 release to improve

compatibility with other Microsoft products and include the Access

Basic programming language.

Microsoft specified the minimum hardware requirements for

Access v2.0: Microsoft Windows v3.0 with 4 MB of RAM required, 6

MB RAM recommended; 8 MB of available hard disk space

required, 14 MB hard disk space recommended. The product was

shipped on seven 1.44 MB diskettes. The manual shows a 1993

copyright date.

Originally, the software worked well with relatively small

databases but testing showed some circumstances caused data

corruption. For example, file sizes over 10 MB were problematic

(note that most hard disks were smaller than 500 MB at the time this

was in wide use), and the Getting Started manual warns about a

number of circumstances where obsolete device drivers or incorrect

configurations can cause data loss. With the phasing out of Windows

95, 98 and ME, improved network reliability, and Microsoft having

released 8 service packs for the Jet Database Engine, the reliability of

Access databases has been vastly improved in both size and number

of users.

39

With Office 95, Microsoft Access 95 became part of the

Microsoft Office Professional Suite joining Microsoft Excel, Word,

and PowerPoint and transitioning from Access Basic to Visual Basic

for Applications (VBA). Since then, there have been releases of

Microsoft Access with each release of Office. This includes Access 97

(version 8.0), Access 2000 (version 9.0), Access 2002 (version 10.0),

Access 2003 (version 11.0), and Access 2007 (version 12.0).

The native Access database format (the Jet MDB Database) has

also evolved over the years. Formats include Access 1.0, 1.1, 2.0, 95,

97, 2000, and 2002-2007. The most significant transition was from the

Access 97 to the Access 2000 format which was not backward

compatible, and Access 2000 required the new format. Since Access

2000, all newer versions of Access support the Access 2000 format.

New features were added to the Access 2002 format which can be

used by Access 2002, 2003, and 2007.

In Access 2007, a new database format was introduced:

ACCDB. The ACCDB supports complex data types such as

multivalue and attachment fields. These new field types are

essentially recordsets in fields and allow the storage of multiple

values in one field.

Prior to the introduction of Access, the desktop database

market was dominated by Borland with their Paradox and dBase

40

programs, and FoxPro. Microsoft Access was the first mass market

database program for Windows. With the purchase of FoxPro and

incorporating its Rushmore query optimization routines into Access,

Microsoft Access quickly became the dominant database for

Windows effectively eliminating the competition which failed to

transition from the MS-DOS world.

Access's initial codename was Cirrus; the forms engine was

called Ruby. This was before Visual Basic - Bill Gates saw the

prototypes and decided that the BASIC language component should

be co-developed as a separate expandable application, a project

called Thunder. The two projects were developed separately as the

underlying forms engines were incompatible with each other;

however, these were merged together again after VBA.

Access was also the name of a communications program from

Microsoft, meant to compete with ProComm and other programs.

This proved a failure and was dropped.Years later Microsoft reused

the name for its database software.

41

5.5 DATABASE

A database is a structured collection of records or data that is

stored in a computer system. The structure is achieved by organizing

the data according to a database model. The model in most common

use today is the relational model. Other models such as the

hierarchical model and the network model use a more explicit

representation of relationships.

Database management systems

A computer database relies upon software to organize the

storage of data. This software is known as a database management

system (DBMS). Database management systems are categorized

according to the database model that they support. The model tends

to determine the query languages that are available to access the

database. A great deal of the internal engineering of a DBMS,

however, is independent of the data model, and is concerned with

managing factors such as performance, concurrency, integrity, and

recovery from hardware failures. In these areas there are large

differences between products.

A Relational Database Management System (RDBMS)

implements the features of the relational model outlined above. In

42

this context, Date's "Information Principle" states: "the entire

information content of the database is represented in one and only

one way. Namely as explicit values in column positions (attributes)

and rows in relations (tuples). Therefore, there are no explicit

pointers between related tables."

Database models

Post-relational database models

Products offering a more general data model than the

relational model are sometimes classified as post-relational. The data

model in such products incorporates relations but is not constrained

by the Information Principle, which requires that all information is

represented by data values in relations.

Some of these extensions to the relational model actually

integrate concepts from technologies that pre-date the relational

model. For example, they allow representation of a directed graph

with trees on the nodes.

Some products implementing such models have been built by

extending relational database systems with non-relational features.

Others, however, have arrived in much the same place by adding

relational features to pre-relational systems. Paradoxically, this

43

allows products that are historically pre-relational, such as PICK

and MUMPS, to make a plausible claim to be post-relational in their

current architecture.

Object database models

In recent years, the object-oriented paradigm has been applied

to database technology, creating a new programming model known

as object databases. These databases attempt to bring the database

world and the application programming world closer together, in

particular by ensuring that the database uses the same type system as

the application program. This aims to avoid the overhead (sometimes

referred to as the impedance mismatch) of converting information

between its representation in the database (for example as rows in

tables) and its representation in the application program (typically as

objects). At the same time, object databases attempt to introduce the

key ideas of object programming, such as encapsulation and

polymorphism, into the world of databases.

A variety of these ways have been tried for storing objects in a

database. Some products have approached the problem from the

application programming end, by making the objects manipulated by

the program persistent. This also typically requires the addition of

some kind of query language, since conventional programming

44

languages do not have the ability to find objects based on their

information content. Others have attacked the problem from the

database end, by defining an object-oriented data model for the

database, and defining a database programming language that allows

full programming capabilities as well as traditional query facilities.

45

SYSTEMDIAGRAM

46

DATABASE DESIGN

48

AMC:

FIELD NAME DATA TYPEDate TextAMCNO TextCname TextCAddress TextPhNo TextNOS NumberYears NumberHighest NumberAmount NumberDOE TextStatus Number

Charges:

FIELD NAME DATA TYPEPC NumberPR Number

49

Complaint:

FIELD NAME DATA TYPEDate TextCno TextName-ID TextAddress TextCdescription TextResult TextVisit NumberPay NumberSerBy TextStatus Number

50

SOURCE CODE

51

MDI FORM

Imports System.Windows.Forms

Public Class ServiceCenter Private Sub RegisterToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RegisterToolStripMenuItem.Click SerForm.Show() Me.TSSL.Text = "Registered Form In Process" End Sub

Private Sub ServiceCenter_Disposed(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Disposed Constr.Close() End End Sub

Private Sub ServiceCenter_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Try Constr.Open() Dim St As String, Dt As New DataSet St = "Select * from Charges " Dt = GetDataSet(St) Pc = CDbl(Dt.Tables(0).Rows(0).Item(0)) Pr = CDbl(Dt.Tables(0).Rows(0).Item(1)) Catch ex As Exception MsgBox(ex.StackTrace) End Try End Sub

52

Private Sub ResultToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ResultToolStripMenuItem.Click Result.Show() End Sub

Private Sub CommercialToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CommercialToolStripMenuItem.Click AMC.Show() AMC.TextBox8.Text = Pc End Sub

Private Sub ResidentailToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ResidentailToolStripMenuItem.Click AMCR.Show() AMCR.TextBox8.Text = Pr End Sub

Private Sub ServicedToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ServicedToolStripMenuItem.Click St_1 = False Report1.Show() End Sub

Private Sub NotServicedToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NotServicedToolStripMenuItem.Click St_1 = True Report1.Show() End Sub

Private Sub ActivationToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ActivationToolStripMenuItem.Click St_2 = False Report2.Show() End Sub

53

Private Sub DeActivationToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DeActivationToolStripMenuItem.Click St_2 = True Report2.Show() End Sub

Private Sub FinanceToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FinanceToolStripMenuItem.Click Fin.Show() End Sub

Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem.Click Constr.Close() End End SubEnd Class

SERVICE FORM

Imports System.DataImports System.Data.OleDbPublic Class SerForm Dim Dst, ds As New DataSet Dim J As Integer = 0

Private Sub SerForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter Dst.Clear() Dst = GetDataSet("Select * from Complaint where status=1") Load_Data(Dst, 0) J = 0 Load_List(ListBox1, Dst, 1) End Sub

Private Sub Load_Data(ByVal Ds As DataSet, ByVal i As Integer) Try If Ds.Tables(0).Rows.Count > i And i > -1 Then

54

TextBox1.Text = Ds.Tables(0).Rows(i).Item(0) TextBox2.Text = Ds.Tables(0).Rows(i).Item(1) TextBox3.Text = Ds.Tables(0).Rows(i).Item(2) TextBox4.Text = Ds.Tables(0).Rows(i).Item(3) TextBox5.Text = Ds.Tables(0).Rows(i).Item(4) Else MsgBox("No Record Found", MsgBoxStyle.Information) End If Catch ex As Exception End Try End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.Text = Now.Date.ToShortDateString TextBox2.Text = Random_ID(6) TextBox3.Text = "" TextBox4.Text = "" TextBox5.Text = "" End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim St As String = "Insert into Complaint values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "','On Process',0,0,'Not Serviced',1)" MsgBox(St) If ExecuteCmd(St) = 1 Then MsgBox("Complaint registered", MsgBoxStyle.Information) Dst.Clear() Dst = GetDataSet("Select * from Complaint") Load_Data(Dst, 0) J = 0 Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim St As String = "Delete from Complaint where CNo='" & TextBox2.Text & "'" MsgBox(St)

55

If ExecuteCmd(St) = 1 Then MsgBox("Complaint Deleted", MsgBoxStyle.Information) Dst.Clear() Dst = GetDataSet("Select * from Complaint") Load_Data(Dst, 0) J = 0 Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim St As String = "Update Complaint Set Name-ID='" & TextBox3.Text & "',Address='" & TextBox4.Text & "',CDescription='" & TextBox5.Text & "' where CNo='" & TextBox2.Text & "'" MsgBox(St) If ExecuteCmd(St) = 1 Then MsgBox("Complaint registered", MsgBoxStyle.Information) Dst.Clear() Dst = GetDataSet("Select * from Complaint") Load_Data(Dst, 0) Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged Dim St As String = "Select * from Complaint where CNo='" & ListBox1.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx, 0) End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click Me.Close() End Sub

Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click

56

Dst.Clear() Dst = GetDataSet("Select * from Complaint where status=1") J = J + 1 Load_Data(Dst, J) End Sub

Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click Dst.Clear() Dst = GetDataSet("Select * from Complaint where status=1") J = J - 1 Load_Data(Dst, J) End Sub

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click Dim St As String = "Select * from Complaint where CNo='" & TextBox6.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx, 0) End SubEnd Class

RESULT FORM

Public Class Result Dim Dst As DataSet Dim Amcs As Boolean = False

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click Me.Close() End Sub

Private Sub Load_Data(ByVal Ds As DataSet) Try TextBox1.Text = Ds.Tables(0).Rows(0).Item(1) ComboBox1.Text = Ds.Tables(0).Rows(0).Item(5) ComboBox2.Text = Ds.Tables(0).Rows(0).Item(6) TextBox2.Text = Ds.Tables(0).Rows(0).Item(7)

57

TextBox3.Text = Ds.Tables(0).Rows(0).Item(8) Catch ex As Exception End Try End Sub

Private Sub Result_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter Dst = GetDataSet("Select * from Complaint where status=1") Load_Data(Dst) Load_List(ListBox1, Dst, 1) End Sub

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged Dim St As String = "Select * from Complaint where CNo='" & ListBox1.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx) End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim St As String = "Update Complaint Set Result='" & ComboBox1.Text & "',Visit=" & ComboBox2.Text & ",Pay=" & TextBox2.Text & ",SerBy='" & TextBox3.Text & "',Status=0 where CNo='" & TextBox1.Text & "'" MsgBox(St) If ExecuteCmd(St) = 1 Then MsgBox("Complaint Complete", MsgBoxStyle.Information) Dst.Clear() Dst = GetDataSet("Select * from Complaint where status=1") Load_Data(Dst) Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged ComboBox2.Text = 1

58

If Amcs = False Then TextBox2.Text = "350" End If End Sub

Private Sub RadioButton2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged ComboBox2.Text = 0 If Amcs = False Then TextBox2.Text = "250" End If End Sub

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged Dim St As String = "Select * from Complaint where CNo='" & TextBox1.Text & "'" Amcs = False Dim Cnox As String Dim Dsx, Dsx2 As New DataSet Dsx = GetDataSet(St) If Dsx.Tables(0).Rows.Count > 0 Then Cnox = Dsx.Tables(0).Rows(0).Item(2) St = "Select * from AMC where AMCNO='" & Cnox & "'and Status=1" Dsx2 = GetDataSet(St) If Dsx2.Tables(0).Rows.Count > 0 Then Amcs = True End If End If End SubEnd Class

AMC COMMERCIAL FORM

Public Class AMC Dim Dst As New DataSet

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

59

Me.MdiParent = ServiceCenter Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pc)) Load_Data(Dst) Load_List(ListBox1, Dst, 1) End Sub

Private Sub Load_Data(ByVal Ds As DataSet) Try TextBox1.Text = Ds.Tables(0).Rows(0).Item(0) TextBox2.Text = Ds.Tables(0).Rows(0).Item(1) Textbox3.Text = Ds.Tables(0).Rows(0).Item(2) TextBox4.Text = Ds.Tables(0).Rows(0).Item(3) TextBox5.Text = Ds.Tables(0).Rows(0).Item(4) TextBox6.Text = Ds.Tables(0).Rows(0).Item(5) TextBox7.Text = Ds.Tables(0).Rows(0).Item(6) TextBox8.Text = Ds.Tables(0).Rows(0).Item(7) TextBox9.Text = Ds.Tables(0).Rows(0).Item(8) TextBox10.Text = Ds.Tables(0).Rows(0).Item(9) Catch ex As Exception End Try End Sub

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged Dim St As String = "Select * from AMC where AMCNO='" & ListBox1.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx) End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.Text = Now.Date.ToShortDateString TextBox2.Text = Random_ID(5) Textbox3.Text = "" TextBox4.Text = "" TextBox5.Text = "" TextBox6.Text = "" TextBox7.Text = "" TextBox8.Text = "3500"

60

TextBox9.Text = "" TextBox10.Text = Now.Date.AddYears(1).ToShortDateString End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim St As String St = "Insert into AMC values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & Textbox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "'," St = St + "" + TextBox6.Text & "," & TextBox7.Text & "," & TextBox8.Text & "," & TextBox9.Text & ",'" & TextBox10.Text & "',1)" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Inserted", MsgBoxStyle.Information) Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pc)) Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub TextBox6_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox6.TextChanged Total_Amt() End Sub

Sub Total_Amt() Try TextBox9.Text = CInt(TextBox7.Text) * CInt(TextBox6.Text) * CInt(TextBox8.Text) TextBox10.Text = Now.Date.AddYears(CInt(TextBox7.Text)).ToShortDateString Catch ex As Exception End Try End Sub


61



Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim St As String St = "Delete from AMC where AMCNO='" & TextBox2.Text & "'" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Deleted", MsgBoxStyle.Information) Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pc)) Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click Dim St As String St = "Update AMC Set CName='" & Textbox3.Text & "',CAddress='" & TextBox4.Text & "',PhNo='" & TextBox5.Text & "',NOS=" & TextBox6.Text & ",Years=" & TextBox7.Text & "," St = St + "Highest=" + TextBox8.Text & ",Amount=" & TextBox9.Text & ",DOE='" & TextBox10.Text & "' where AMCNO='" & TextBox2.Text & "'" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Update", MsgBoxStyle.Information) End If End Sub

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pc))

62

Load_List(ListBox1, Dst, 1) End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim St As String = "Select * from AMC where AMCNO = '" & TextBox11.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx) End Sub

Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click Me.Dispose() End Sub

Private Sub TextBox11_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox11.GotFocus TextBox11.Text = "" End SubEnd Class

AMC RESIDENTIAL FORM

Public Class AMCR Dim Dst As New DataSet

Private Sub AMCR_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pr)) Load_Data(Dst) Load_List(ListBox1, Dst, 1) End Sub

Private Sub Load_Data(ByVal Ds As DataSet) Try TextBox1.Text = Ds.Tables(0).Rows(0).Item(0) TextBox2.Text = Ds.Tables(0).Rows(0).Item(1)

63

Textbox3.Text = Ds.Tables(0).Rows(0).Item(2) TextBox4.Text = Ds.Tables(0).Rows(0).Item(3) TextBox5.Text = Ds.Tables(0).Rows(0).Item(4) TextBox6.Text = Ds.Tables(0).Rows(0).Item(5) TextBox7.Text = Ds.Tables(0).Rows(0).Item(6) TextBox8.Text = Ds.Tables(0).Rows(0).Item(7) TextBox9.Text = Ds.Tables(0).Rows(0).Item(8) TextBox10.Text = Ds.Tables(0).Rows(0).Item(9) Catch ex As Exception End Try End Sub

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged Dim St As String = "Select * from AMC where AMCNO='" & ListBox1.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx) End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.Text = Now.Date.ToShortDateString TextBox2.Text = Random_ID(5) Textbox3.Text = "" TextBox4.Text = "" TextBox5.Text = "" TextBox6.Text = "" TextBox7.Text = "" TextBox8.Text = "2500" TextBox9.Text = "" TextBox10.Text = Now.Date.AddYears(1).ToShortDateString End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim St As String St = "Insert into AMC values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & Textbox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "',"

64

St = St + "" + TextBox6.Text & "," & TextBox7.Text & "," & TextBox8.Text & "," & TextBox9.Text & ",'" & TextBox10.Text & "',1)" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Inserted", MsgBoxStyle.Information) Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pr)) Load_List(ListBox1, Dst, 1) End If End Sub


Sub Total_Amt() Try TextBox9.Text = CInt(TextBox7.Text) * CInt(TextBox6.Text) * CInt(TextBox8.Text) TextBox10.Text = Now.Date.AddYears(CInt(TextBox7.Text)).ToShortDateString Catch ex As Exception End Try End Sub



Private Sub TextBox9_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox9.TextChanged Total_Amt()

65

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim St As String St = "Delete from AMC where AMCNO='" & TextBox2.Text & "'" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Deleted", MsgBoxStyle.Information) Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pr)Load_List(ListBox1, Dst, 1) End If End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click Dim St As String St = "Update AMC Set CName='" & Textbox3.Text & "',CAddress='" & TextBox4.Text & "',PhNo='" & TextBox5.Text & "',NOS=" & TextBox6.Text & ",Years=" & TextBox7.Text & "," St = St + "Highest=" + TextBox8.Text & ",Amount=" & TextBox9.Text & ",DOE='" & TextBox10.Text & "' where AMCNO='" & TextBox2.Text & "'" If ExecuteCmd(St) = 1 Then MsgBox("AMC Record Update", MsgBoxStyle.Information) End If End Sub

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click Dst = GetDataSet("Select * from AMC where Highest=" + CStr(Pr)) Load_List(ListBox1, Dst, 1) End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim St As String = "Select * from AMC where AMCNO = '" & TextBox11.Text & "'" Dim Dsx As New DataSet Dsx = GetDataSet(St) Load_Data(Dsx)

66

End Sub

Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click Me.Dispose() End Sub

Private Sub TextBox11_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox11.GotFocus TextBox11.Text = "" End SubEnd ClassCOMPLAINT STATUS REPORT

Imports System.Data.OleDbImports System.DataPublic Class Report1

Private Sub Report1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter Dim st As String If St_1 = True Then st = "Select * from Complaint where Status=1" Else st = "Select * from Complaint where Status=0" End If Dim Da1 As New OleDbDataAdapter(st, Constr) Dim Ds1 As New DataTable Dim Dst As New DataSet Da1.Fill(Ds1) : Da1.Fill(Dst) Load_Combo(ComboBox1, Dst, 1) DataGridView1.DataSource = Ds1 End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim st As String If St_1 = True Then st = "Select * from Complaint where CNo='" & ComboBox1.Text & "' and Status=1" Else st = "Select * from Complaint where CNo='" & ComboBox1.Text & "' and Status=0"

67

End If Dim Da1 As New OleDbDataAdapter(st, Constr) Dim Ds1 As New DataTable Da1.Fill(Ds1) If Ds1.Rows.Count < 0 Then MsgBox("Bill not found", MsgBoxStyle.Information) End If DataGridView1.DataSource = Ds1 End Sub

Private Sub ComboBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.TextChanged Dim st As String If St_1 = True Then st = "Select * from Complaint where CNo like '" & ComboBox1.Text & "%' and Status=1" Else st = "Select * from Complaint where CNo like '" & ComboBox1.Text & "%' and Status=0" End If Dim Da1 As New OleDbDataAdapter(st, Constr) Dim Ds1 As New DataTable Da1.Fill(Ds1) If Ds1.Rows.Count < 0 Then End If DataGridView1.DataSource = Ds1 End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Me.Dispose() End SubEnd Class

ACTIVATION FORM

Imports System.Data.OleDbImports System.DataPublic Class Report2

68

Private Sub Report2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter Dim st As String If St_2 = True Then st = "Select * from AMC where Status=1" Else st = "Select * from AMC where Status=0" End If Load_Combo(ComboBox1, GetDataSet(st), 1) DataGridView1.DataSource = GetDataTable(st) End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim st As String If St_2 = True Then st = "Select * from AMC where AMCNO='" & ComboBox1.Text & "' and Status=1" Else st = "Select * from AMC where AMCNO='" & ComboBox1.Text & "' and Status=0" End If If GetDataSet(st).Tables(0).Rows.Count < 0 Then MsgBox("Bill not found", MsgBoxStyle.Information) End If DataGridView1.DataSource = GetDataTable(st) End Sub

Private Sub ComboBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.TextChanged Dim st As String If St_2 = True Then st = "Select * from AMC where AMCNO like '" & ComboBox1.Text & "%' and Status=1" Else

69

st = "Select * from AMC where AMCNO like '" & ComboBox1.Text & "%' and Status=0" End If DataGridView1.DataSource = GetDataTable(st) End Sub

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged Dim st As String If St_2 = True Then st = "Select * from AMC where AMCNO='" & ComboBox1.Text & "' and Status=1" Else st = "Select * from AMC where AMCNO='" & ComboBox1.Text & "' and Status=0" End If DataGridView1.DataSource = GetDataTable(st) End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Me.Dispose() End SubEnd Class

FINIANCIAL REPORT

Public Class Fin

Private Sub Fin_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MdiParent = ServiceCenter End Sub

70

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim TotAmt, TotAmt1 As Long, i As Integer TotAmt = 0 : TotAmt1 = 0 Dim Ds1, Ds2 As New DataSet Dim St As String = "Select * from Complaint" Ds1 = GetDataSet(St) St = "Select * from AMC" Ds2 = GetDataSet(St) Dim Dt1, Dt2 As Date, dif1, dif2, dif3 As Integer Dt1 = CDate(DateTimePicker1.Text) Dt2 = CDate(DateTimePicker2.Text) dif1 = DateDiff(DateInterval.Day, Dt1, Dt2) For i = 0 To Ds1.Tables(0).Rows.Count - 1 dif2 = DateDiff(DateInterval.Day, Dt1, CDate(Ds1.Tables(0).Rows(i).Item(0))) dif3 = DateDiff(DateInterval.Day, CDate(Ds1.Tables(0).Rows(i).Item(0)), Dt2) If dif2 <= dif1 And dif1 >= dif3 Then TotAmt = TotAmt + CLng(Ds1.Tables(0).Rows(i).Item(7)) End If Next TotAmt1 = TotAmt For i = 0 To Ds2.Tables(0).Rows.Count - 1 dif2 = DateDiff(DateInterval.Day, Dt1, CDate(Ds2.Tables(0).Rows(i).Item(0))) dif3 = DateDiff(DateInterval.Day, CDate(Ds2.Tables(0).Rows(i).Item(0)), Dt2) If dif2 <= dif1 And dif1 >= dif3 Then TotAmt = TotAmt + CLng(Ds2.Tables(0).Rows(i).Item(7)) End If Next Label3.Text = "Total Amount = " & CStr(TotAmt) Label4.Text = "Total Amount By Service = " & CStr(TotAmt1) Label5.Text = "Total Amount By AMC = " & CStr(TotAmt - TotAmt1)

71

End SubEnd Class

72

SNAP SHOT

73

LOGIN FORM

MDI FORM

74

REGISTER COMPLAINT FORM

75

RESULT FORM

76

AMC COMMERCIAL FORM

77

AMC RESIDENTIAL FORM

78

SERVICE REPORT

79

ACTIVATION REPORT

80

FINIANCIAL REPORT

81

CONCLUSION

82

CONCLUSION

In this fast moving era of sophisticated

technologies in the computer development in the

world, there is a need for every thing to be made

available for this generation relevant to the

developments. This project will definitely fulfill the

requirement of service center and finally, I

conclude that this project will compromise the

actual requirements to service center.

83

BIBLIOGRAPHY

84

BIBLIOGRAPHY

Web Site : www.a1vbcode.com

85

Amc

Documents

Transcript of Amc