web application development manual

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G. NARAYANAMMA INSTITUTE OF TECHNOLOGY & SCIENCE

Autonomous of JNTUH (For Women

S!"#$%et H'er")".

*E+ARTMENT OF COM+UTER SCIENCE AN* ENGINEERING

I,-I, .Te/! I Semester G012 Re3u4"t#ons

T#t4e5 Str#n3 M"n#%u4"t#on *ATE5 22 6 78 0 2719

AIM5 Wr#te " %ro3r"m to #m%4ement str#n3 m"n#%u4"t#on.

E:+LANATION5

Str#n3 Fun/t#ons #n AS+.NET5

Following are the string functions used for string manipulation in asp.net.

GetChar("This is a string", 7) returns "s".

InStr() eturns the starting position in a string of a su!string, counting from .

InStr("This is a string", "string") returns .

InStre#() eturns the starting position in a string of a su!string, searching from the end of the

string.

InStr("This is a string", "string") returns .

$Case() eturns the lower%case con#ersion of a string.

$Case("T&IS IS ' STIG") returns "this is a string".

$eft() eturns the left%most specified num!er of characters of a string.

$eft("This is a string", ) returns "This".

$en() eturns the length of a string.

$en("This is a string") returns *.

$Trim() emo#es an+ leading spaces from a string.

$Trim(" This is a string") returns "This is a string".

id() eturns a su!string from a string, specified as the starting position (counting from )

and the num!er of characters.

id("This is a string", *, ) returns "is a".

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rs. . $alitha,'sst.-rof.,CS /r. 0.1.G aor. T. a2esh, 'sst.-rof.,CS -rof 3 &4/ CSrs. /. aga Swetha, 'sst.-rof.,CS


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eplace() eplaces all occurences of a su!string in a string.

eplace("This is a string", " s", " longer s") returns "This are a longer string" (replaces an "s"

preceded !+ a !lan5 space).

ight() eturns the right%most specified num!er of characters of a string.

ight("This is a string", *) returns "string".

Trim() emo#es an+ trailing spaces from a string.

Trim("This is a string ") returns "This is a string".

Str() eturns the string e6ui#alent of a num!er.

Str() returns "".

Space() Fills a string with a gi#en num!er of spaces.

"This" 3 Space(8) 3 "string" returns "This string".

StrComp() Compares two strings. eturn #alues are (strings are e6ual), (first string has the

greater #alue), or % (second string has the greater #alue) !ased on sorting se6uence.

StrComp("This is a string", "This string") returns %.

Stre#erse() e#erses the characters in a string.

Stre#erse("This is a string") returns "gnirts a si sihT".

Trim() emo#es an+ leading and trailing spaces from a string.

Trim(" This is a string ") returns "This is a string".

9Case() eturns the upper%case con#ersion of a string.

9Case("This is a string") returns "T&IS IS ' STIG".

1al() Con#erts a numeric e:pression to a num!er.

1al( ( ; < ; =)>< ) returns =*.

+ROGRAM5

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I,-I, .Te/! I Semester G012 Re3u4"t#onsemo#e all the special characters from a Gi#en String.

a%%DEs%", " ")

str @ ege:.eplace(str, A"Es;", " ").Trim()

return str

H

For Re%4"/e S%e/#"4 C!"r"/ters

pu!lic static string emo#eSpeCharacter(string str)

?

return ege:.eplace(str, "B>a%'%%DJ.;", "", ege:4ptions.Compiled)

H

protected #oid KuttonJClic5(o!2ect sender, #ent'rgs e)

?

string str@Te:tKo:.Te:t

Te:tKo:


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I,-I, .Te/! I Semester G012 Re3u4"t#onsstatic #oid ain(stringB args)

?

string str @ "/otetASpider.com"

string replacestr@ ege:.eplace(str, "B>a%'%%DJ;", " ")

Console.Lrite$ine(replacestr)

Console.ead$ine()

H

H

H

4r

pu!lic string emo#eSpecialChars(string str)

?

stringB chars @ new stringB?",",".","M","N","A","O","P","Q",">","3","R","","E"","","%

","J","(",")","","U","B",""H

for(int i @ iV chars.$ength i;; )

?

if(str.Contains(charsBi)) ?

str @ str.eplace(charsBi,"")

H

H

return str

H

string newString @ emo#eSpecialChars("TNh>eQcNodOe3isOsuP!QmUiQt(te)d !+

Bohi)tAWaRiHn")

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E:ECUTION5

IN+UT5

OUT+UT5

T#t4e5 C4"ss Con/e%t 22 0 78 0 2719

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AIM5 Wr#te " %ro3r"m to #m%4ement /4"ss /on/e%t.

E:+LANATION5' Class is a collection of o!2ects holding similar !eha#ior. The most

common definition states that a class is a template for an o!2ect.

C4"ss mem)ers

' class has different mem!ers, and de#elopers in icrosoft suggest to program them in the

following order

N"mes%"/e The namespace is a 5e+word that defines a distincti#e name or last name forthe class. ' namespace categories and organies the li!rar+ (assem!l+) where the class

!elongs and a#oids collisions with classes that share the same name.

C4"ssdeclaration $ine of code where the class name and t+pe are defined.

F#e4s Set of #aria!les declared in a class !loc5.

Const"nts Set of constants declared in a class !loc5.

Constru/tors ' method or group of methods that contains code to initialie the class.

+ro%ert#es The set of descripti#e data of an o!2ect.

E;ents -rogram responses that get fired after a user or application action.

Met!os Set of functions of the class.

*estru/tor ' method that is called when the class is destro+ed. In managed code, the

Gar!age Collector is in charge of destro+ing o!2ects howe#er, in some cases de#elopers

need to ta5e e:tra actions when o!2ects are !eing released, such as freeing handles or

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I,-I, .Te/! I Semester G012 Re3u4"t#onsdeallocating unmanaged o!2ects. In .T, there is no concept of deterministic destructors.

The Gar!age Collector will call the Finalie() method at a non%deterministic time while

reclaiming memor+ for the application.

A//ess $e'>ors

'ccess 5e+words define the access to class mem!ers from the same class and from other classes.

The most common access 5e+words are

+u)4#/ 'llows access to the class mem!er from an+ other class.

+r#;"te 'llows access to the class mem!er onl+ in the same class.

+rote/te 'llows access to the class mem!er onl+ within the same class and from

inherited classes.

Intern"4 'llows access to the class mem!er onl+ in the same assem!l+.

+rote/te #ntern"4 'llows access to the class mem!er onl+ within the same class, from

inherited classes, and other classes in the same assem!l+.

St"t#/ Indicates that the mem!er can !e called without first instantiating the class.

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+ROGRAM ?15

odule classdemo

Class stud

/im rno 's Integer

/im nm 's String

Su! getdata()

Console.write$ine(Xenter roll no and name for the studentY)

[email protected]$ine

[email protected]$ine

nd su!

Su! disp()

Console.write$ine(X4$$ 4Y34)

Console.write$ine(X'Y3nm)

nd su!

nd class

Su! main()

/im 0 's ew stud

0.getdata()

0.disp()

Console.ead$ine()

nd su!

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I,-I, .Te/! I Semester G012 Re3u4"t#onsnd odule

E:ECUTION5

IN+UT5

nter roll no and name for the student

am

nter roll no and name for the student #no>s /4#ent /"n #nter"/t >#t!

" >e) ser;#/e.

E:+LANATION5 Le! Ser#ice is an application that is designed to interact directl+ with

other applications o#er the internet. In simple sense, Le! Ser#ices are means for interacting with

o!2ects o#er the Internet. The Le! seri#ce consumers are a!le to in#o5e method calls on remote

o!2ects !+ using S4'- and &TT- o#er the Le!. Le!Ser#ice is language independent and Le!

Ser#ices communicate !+ using standard we! protocols and data formats, such as

&TT-

_$

S4'-

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I,-I, .Te/! I Semester G012 Re3u4"t#onsA;"nt"3es of We) Ser;#/e

Le! Ser#ice messages are formatted as _$, a standard wa+ for communication !etween two

incompati!le s+stem. 'nd this message is sent #ia &TT-, so that the+ can reach to an+ machine

on the internet without !eing !loc5ed !+ firewall.

E@"m%4es for We) Ser;#/e5

We"t!er Re%ort#n35]ou can use Leather eporting we! ser#ice to displa+ weather information

in +our personal we!site.

Sto/$ Buote5]ou can displa+ latest update of Share mar5et with Stoc5 `uote on +our we! site.

Ne>s He"4#ne5]ou can displa+ latest news update !+ using ews &eadline Le! Ser#ice in

+our we!site.

+ROGRAM STE+S5

. Start a new we!site with /efault.asp: we! page.


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I,-I, .Te/! I Semester G012 Re3u4"t#onsnd Function

!) (i) ight clic5 in solution e:plorer @[ 'dd Le! eference@[ Select !rowser to

option as XLe! Ser#ices in this solutionY.It will displa+ the num!er of we! ser#ices in

the solution.

(ii) Select the we! ser#ice +ou want to use.

(iii) It will displa+ all the methods.

(i#) Select the method +ou want to use and Clic5 XIn#o5eY !utton to see the :ml

message returned !+ the method.

c) Gi#e the we! reference name (!+ default XlocalhostY) and clic5 'dd eference

!utton.

d) Le! reference with name local host gets created in 'ppJLe!eferences folder.

e) Chec5 if files with e:tensions .disco and .wsdl gets generated in localhost.

. In code file (/efault.asp:.#!)

a. Import the namespace S+stem.Le!.Ser#ices.

!. Create an o!2ect of we! ser#ice.(i.e m+Le!Ser#ice)

c. 9se the methods of respecti#e we! ser#ice.

8. Clic5 the XKuildY menu in application @[ select XKuild we! siteY.If XKuild succeededY message comes in status !ar.

:ecute the application and #iew the results

lse

Find out the errors and sol#e the errors.

nd if

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+ROGRAM5

\Inline code( /efault.asp:.#!)

Imports S+stem.Le!.Ser#ices

-artial Class J/efault

Inherits S+stem.Le!.9I.-age

/im mt 's ew m+Le!Ser#ice Creating an o!2ect we!ser#ice

-rotected Su! -ageJ$oad(K+1al sender 's 4!2ect, K+1al e 's S+stem.#ent'rgs)

&andlese.$oad

esponse.Lrite(mt.m+Function()) 9sing the method of respecti#e we! ser#ice

nd Su!

nd Class

\Le!ser#ice( m+Le!Seri#ce.#!)

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I,-I, .Te/! I Semester G012 Re3u4"t#onsImports S+stem.Le!

Imports S+stem.Le!.Ser#ices

Imports S+stem.Le!.Ser#ices.-rotocols

VLe!Ser#ice(amespace@"httpMMtempuri.orgM")[ J

VLe!Ser#iceKinding([email protected])[ J

VGlo!al.icrosoft.1isualKasic.CompilerSer#ices./esignerGenerated()[ J

-u!lic Class m+Le!Ser#ice

Inherits S+stem.Le!.Ser#ices.Le!Ser#ice

VLe!ethod()[ J

-u!lic Function &elloLorld() 's String

eturn "&ello Lorld"

nd Function

VLe!ethod()[ J

-u!lic Function m+Function() 's String

eturn "This is m+Function in Le!ser#ice"

nd Function

nd Class

E:ECUTION5

IN+UT5

OUT+UT5

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,I,A BUESTIONS

1. W!"t #s AS+.Net

Ans5It is a framewor5 de#eloped !+ icrosoft on which we can de#elop new generation we!

sites using we! forms(asp:), 1C, &T$, Wa#ascript, CSS etc. Its successor of icrosoft

'cti#e Ser#er -ages('S-). Currentl+ there is 'S-.T ., which is used to de#elop we! sites.There are #arious page e:tensions pro#ided !+ icrosoft that are !eing used for we! site

de#elopment. g asp:, asm:, asc:, ash:, cs, #!, html, _$ etc.

2.W!"t "re t!e #fferent ;"4#"tors #n AS+.NET

Ans5

. e6uired field 1alidator


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I,-I, .Te/! I Semester G012 Re3u4"t#ons. Custom 1alidator

8. egular e:pression 1alidator

*. Summar+ 1alidator

D. W!#/! %roto/o4 #s use to /"44 " We) ser;#/e

Ans5 &TT- -rotocol

. C"n >e !";e mu4t#%4e >e) /onf#3 f#4es for "n "s%.net "%%4#/"t#on

Ans5 ]es.

9. W!"t #s t!e #fferen/e )et>een >e) /onf#3 "n m"/!#ne /onf#3

Ans5 Le! config file is specific to a we! application where as machine config is specific to a

machine or ser#er. There can !e multiple we! config files into an application where as we can

ha#e onl+ one machine config file on a ser#er.

8. Ho> /"n >e "%%4' T!emes to "n "s%.net "%%4#/"t#on

Ans5 Le can specif+ the theme in we!.config file. Kelow is the code e:ample to appl+ theme

Vconfiguration[

Vs+stem.we![

Vpages theme@"Lindows7" M[

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I,-I, .Te/! I Semester G012 Re3u4"t#ons VMs+stem.we![

VMconfiguration[

. W!"t #s M,C

Ans5 1C is a framewor5 used to create we! applications. The we! application !ase !uilds on

odel%1iew%Controller pattern which separates the application logic from 9I, and the input and

e#ents from the user will !e controlled !+ the Controller.

.E@%4"#n t!e >or$#n3 of %"ss%ort "ut!ent#/"t#on.

Ans5 First of all it chec5s passport authentication coo5ie. If the coo5ie is not a#aila!le then the

application redirects the user to -assport Sign on page. -assport ser#ice authenticates the user

details on sign on page and if #alid then stores the authenticated coo5ie on client machine and

then redirect the user to re6uested page.

. W!"t "re t!e "s%.net Se/ur#t' Contro4s

Ans5

Vasp$ogin[ -ro#ides a standard login capa!ilit+ that allows the users to enter their

credentials

Vasp$oginame[ 'llows +ou to displa+ the name of the logged%in user

Vasp$oginStatus[ /ispla+s whether the user is authenticated or not

Vasp$ogin1iew[ -ro#ides #arious login #iews depending on the selected template

Vasp-asswordeco#er+[ email the users their lost password

17. >!"t #s )o@#n3 "n un)o@#n3

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I,-I, .Te/! I Semester G012 Re3u4"t#onsAns5 Ko:ing is assigning a #alue t+pe to reference t+pe #aria!le.9n!o:ing is re#erse of !o:ing

ie. 'ssigning reference t+pe #aria!le to #alue t+pe #aria!le.

11. *#fferent#"te stron3 t'%#n3 "n >e"$ t'%#n3.

Ans5 In strong t+ping, the data t+pes of #aria!le are chec5ed at compile time. 4n the other hand,

in case of wea5 t+ping the #aria!le data t+pes are chec5ed at runtime. In case of strong t+ping,

there is no chance of compilation error. Scripts use wea5 t+ping and hence issues arises at

runtime.

12.Ho> >e /"n for/e "44 t!e ;"4#"t#on /ontro4s to run

Ans5 The -age.1alidate() method is used to force all the #alidation controls to run and to

perform #alidation.

1D. L#st t!e m"or )u#4t0#n o)e/ts #n AS+.NET

Ans5

'pplication

e6uest

esponse

Ser#er

Session

Conte:t

Trace

1. W!"t "re t!e #fferent t'%es of /oo$#es #n AS+.NET

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I,-I, .Te/! I Semester G012 Re3u4"t#onsAns5 Sess#on Coo$#e esides on the client machine for a single session until the user does not

log out.

+ers#stent Coo$#e esides on a userbs machine for a period specified for its e:pir+, such as

da+s, one month, and ne#er.

19. W!"t #s t!e f#4e e@tens#on of >e) ser;#/e

Ans5 Le! ser#ices ha#e file e:tension .asm:..

18. W!"t "re t!e /om%onents of A*O.NET

Ans5 The components of '/4.et are /ataset, /ata eader, /ata 'daptor, Command,connection.

1. W!"t "re t!e #fferent Sess#on st"te m"n"3ement o%t#ons ";"#4")4e #n

AS+.NET

Ans5

. In%-rocess


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Out0of0+ro/essSession state management stores data in an e:ternal ser#er. The e:ternal ser#er

ma+ !e either a S`$ Ser#er or a State Ser#er. 'll o!2ects stored in session are re6uired to !e

serialia!le for 4ut%of%-rocess state management.

1. W!"t "re t!e #fferent t'%es of /"/!#n3

Ans5 'S-.T has = 5inds of caching . 4utput Caching,


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ailessage and Smtpail are classes defined S+stem.Le!.ail namespace.

27. W!"t #s t!e #fferen/e )et>een >e) /onf#3 "n m"/!#ne /onf#3

Ans5 Le! config file is specific to a we! application where as machine config is specific to a

machine or ser#er. There can !e multiple we! config files into an application where as we can

ha#e onl+ one machine config file on a ser#er.

21. W!"t "re t!e ";"nt"3es of +"ss%ort "ut!ent#/"t#on

Ans5

'll the we!sites can !e accessed using single login credentials. So no need to remem!er

login credentials for each we! site.

9sers can maintain hisM her information in a single location.

22.In >!#/! e;ent "re t!e /ontro4s fu44' 4o"e

Ans5 -age load e#ent.

2D. W!#/! "t" t'%e oes t!e R"n3e,"4#"tor /ontro4 su%%ort

Ans5 The data t+pes supported !+ the ange1alidator control are Integer, /ou!le, String,

Currenc+, and /ate.

2. W!#/! n"mes%"/es "re ne/ess"r' to /re"te " 4o/"4#e "%%4#/"t#on

Ans5 S+stem.Glo!aliation

29. *#fferent#"te )et>een C4#ent0s#e "n ser;er0s#e ;"4#"t#ons #n We)

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%"3es

Ans5

Client%side #alidations happends at the clients side with the help of Wa#aScript and

1KScript. This happens !efore the Le! page is sent to the ser#er.

Ser#er%side #alidations occurs place at the ser#er side.

28.Aut!ent#/"t#on "n "ut!or#"t#on

Ans5

'uthentication is the process of #erif+ng the identit+ of a user using some credentials li5e

username and password while authoriation determines the parts of the s+stem to which a

particular identit+ has access.

'uthentication is re6uired !efore authoriation.

For e.g. If an emplo+ee authenticates himself with his credentials on a s+stem, authoriation will

determine if he has the control o#er 2ust pu!lishing the content or also editing it.

2. W!"t "re We) ser;er /ontro4s #n AS+.NET

These are the o!2ects on 'S-.T pages that run when the Le! page is re6uested.

Some of these Le! ser#er controls, li5e !utton and te:t !o:, are similar to the &T$

controls.

Some controls e:hi!it comple: !eha#ior li5e the controls used to connect to data sources

and displa+ data.

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2. E@%4"#n ser#"4#"t#on "n eser#"4#"t#on.

Ans5 Serialiation is the process of con#erting an o!2ect into a stream of !+tes.

/eserialiation is the process of creating an o!2ect from a stream of !+tes.

Koth these processes are usuall+ used to transport o!2ects.

2. E@%4"#n !o> " >e) "%%4#/"t#on >or$s.

Ans5 ' we! application resides in the ser#er and ser#es the clients re6uests o#er internet. The

client access the we! page using !rowser from his machine. Lhen a client ma5es a re6uest, it

recei#es the result in the form of &T$ which are interpreted and displa+ed !+ the !rowser.

' we! application on the ser#er side runs under the management of icrosoft Internet

Information Ser#ices (IIS). IIS passes the re6uest recei#ed from client to the application. The

application returns the re6uested result in the form of &T$ to IIS, which in turn, sends the

result to the client.

D7. E@%4"#n t!e #fferent %"rts t!"t /onst#tute AS+.NET "%%4#/"t#on.

Ans5 Content, program logic and configuration file constitute an 'S-.T application.

Content f#4es5Content files include static te:t, images and can include elements from

data!ase.

+ro3r"m 4o3#/5-rogram logic files e:ist as /$$ file on the ser#er that responds to the

user actions.

Conf#3ur"t#on f#4e5Configuration file offers #arious settings that determine how the

application runs on the ser#er.

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D1. Ho> o 'ou o%en " %"3e #n " ne> >#no>

Ans5 To open a page in a new window, +ou ha#e to use client script using

onclic5@"window.open()" attri!ute of &T$ control.

D2. W!"t "re t!e #fferen/es )et>een A)str"/t "n #nterf"/e

Ans5

'!stract cannot !e instantiated !ut we can inherit. Interface it cannot !e inherit it can !e

instantiate.

Interface contain onl+ declarations no definitions. '!stract contain declarations and

definitions.

The class which contains onl+ a!stract methods is interface class.

' class which contains a!stract method is called a!stract class.

-u!lic is default access specifier for interface we donbt ha#e a chance to declare other

specifiers. In a!stract we ha#e chance to declare with an+ access specifier.

DD. W!"t "re #fferen/es )et>een fun/t#on "n store %ro/eure

Ans5

Function returns onl+ one #alue !ut procedure returns one or more than one #alue.

Function can !e utilied in select statements !ut that is not possi!le in procedure.

-rocedure can ha#e an input and output parameters !ut function has onl+ input

parameters onl+.

:ceptions can !e handled !+ tr+ catch !loc5 in procedures !ut that is not possi!le in

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I,-I, .Te/! I Semester G012 Re3u4"t#onsfunction.

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web application development manual

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