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8/13/2019 ASP.net Interview Questions & Answers
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Which component can be used for reporting in ASP.Net?
1. HTML Table2. Data Grid
3. Data Repeater
4. All of the aboveAnswer: 4
Please brief not about XSD,XSLT X!L.
XSD stands for XML She!a Definition."t define the str#t#re of
the XML file and theele!ents and attrib#tes it ontains.The datat$pe
of the ele!ents.So that %hen # pop#late
XML data into dataset& the dataset an treat ele!ents
differentl$ based on their t$pe."f
XSD is not present dataset treats all ele!ents as strin' t$pe.
XSLT stands for XML st$lesheet lan' tranfor!ation."t is lan' #sed
for transfor!in' XML data in one for!at to
another for!at.()a!ple XML data into HTML for!at. XSLT #ses
X*ath to identif$ the
ele!ents in XML do and transfor! those to desired for!at
"f #e remo$e #eb.config or machine.config from the application
then, "s this
application #ill #or%s?
"f %e re!ove the %eb.onfi' file fro! the appliation it %ill
%or+.
#nless it doesnt have the thin's li+e onnetionstrin' et.
&o# to reduce the #idth of te'tbo' in (dit)ommand)olumn of
Data*rid?
onvert te)tbo) ol#!n into a te!plate then it lets $o# han'e its
%idth
What is e$ent bubbling?
(vent ,#bblin' is nothin' b#t events raised b$ hild ontrols is
handled b$ the parentontrol. ()a!ple- S#ppose onsider data'rid as
parent ontrol in %hih there are several
hild ontrols.There an be a ol#!n of lin+ b#ttons. (ah lin+
b#tton has li+ event.
"nstead of %ritin' event ro#tine for eah lin+ b#tton %rite one
ro#tine for parent %hih%ill handlde the li+ events of the hild lin+
b#tton events.*arent an +no% %hih hild
ata#ll$ tri''ered the event.That thr# ar'#!ents passed to event
ro#tine. Happ$
pro'ra!!in'
What is DLL hell?
*revio#sl$& before ./(T& this #sed to be a !a0or iss#e.
DLL Hell refers to the set ofproble!s a#sed %hen !#ltiple
appliations atte!pt to share a o!!on o!ponent li+e a
d$na!i lin+ librar$ DLL or a o!ponent b0et Model M lass. "n the
!ost
t$pial ase& one appliation %ill install a ne% version of the
shared o!ponent that is notba+%ard o!patible %ith the version
alread$ on the !ahine. Altho#'h the appliation
that has 0#st been installed %or+s %ell& e)istin'
appliations that depended on a previo#s
version of the shared o!ponent !i'ht no lon'er %or+. "n so!e
ases& the a#se of the
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8/13/2019 ASP.net Interview Questions & Answers
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proble! is even !ore s#btle. "n !an$ ases there is a si'nifiant
dela$ before a #ser
disovers that an appliation has stopped %or+in'. As a
res#lt& it is often diffi#lt to
re!e!ber %hen a han'e %as !ade to the !ahine that o#ld have
affeted theappliation. A #ser !a$ re!e!ber installin' so!ethin' a
%ee+ a'o& b#t there is no
obvio#s orrelation bet%een that installation and the behavior
the$ are no% seein'. The
reason for these iss#es is that version infor!ation abo#t the
different o!ponents of anappliation aren5t reorded or enfored b$
the s$ste!. Also& han'es !ade to the s$ste!
on behalf of one appliation %ill t$piall$ affet all appliations
on the !ahine.
What is the difference bet#een Ser$er.Transfer and
+esponse.+edirect? Wh #ould
" choose one o$er the other?
Server.Transfer is #sed %hen rediretin' the %ebpa'e %ith in the
sa!e appliation%hereas Response.Rediret is appliable to%ards the
rediretion of %ebpa'e bet%een 2
appliations
Response.Rediret %ill instr#t bro%ser to all a parti#lar
%ebpa'e. This %ill inrease
one re6#est and one response bet%een the lient and server.
List out controls #hich doest not ha$e e$ents
line and shape ontrols
What method do ou use to e'plicitl %ill a user s session?
session.abandon7to +ill all
session.re!ove7to spe ite!
What does the -(nableie#State- propert do? Wh #ould " #ant it on
or off?
"n Dot /et State of b0ets8ontrols is stored in hidden field
na!ed 9:ie%State this is
done a#to!atiall$ b$ dot net
life ti!e of this ontrol is life of pa'e i.e till %e are doin'
*ost,a+ to sa!e pa'ethro#'h (nable:ie%State;tr#e 8false %e an
define %hether %e have to !aintain val#es
of ontrol in hidden fields %hen pa'e is posted ba+ a'ain and
a'ain
Diff bet#een Web /ser )ontrol and Web )ustom )ontrol.
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"n #hat order do the e$ents of an ASPX page e'ecute. As a
de$eloper is it important
to undertsand these e$ents?
1. b0et "nitiali?ation
2. Load :ie%state Data
3. Load*ostData *roesses *ostba+ Data
4. b0et Load
=. Raise *ost,a+ han'e (vents
@. *roess lient7Side *ost,a+ (vent
. *rerender the b0ets
B. :ie%State Saved
C. Render To HTML
1. Disposal
&o# do ou create a permanent coo%ie?
Settin' a per!anent oo+ie is si!ilar to Session oo+ie& e)ept
'ive the oo+ie an
e)piration date too. "t is ver$ o!!on that $o# don5t speif$ an$
arbitrar$ e)pirationdate& b#t instead e)pire the oo+ie relative
to the #rrent date& #sin' the DateAdd
f#ntion.
Response.oo+ies/a!e ; !$oo+ieResponse.oo+ies/a!e.()pires ;
DateAdd!& 1& /o%
Which method do ou use to redirect the user to another page
#ithout performing a
round trip to the client?
Server. Transfer
#hat is the difference bet#een Ser$er.Transfer01 and
Ser$er.('ecute01?
Server.Transfer ; Transfer ontrol fro! #rrent pa'e to another
pa'e li+e asResponse.Rediret.
Server.()e#te ontrol 'oto another &proess it and o!e ba+ to
sa!e pa'e . Li+e as
s#bro#tine S#b pro'ra!.
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