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 Asp.Net Interview 1

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A.Tamimi
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مُساهمةموضوع: Asp.Net Interview 1   الجمعة نوفمبر 14, 2008 1:17 am

66666666
ASP. NET

(B) What’ is the sequence in which ASP.NET events are processed?

(B) In which event are the controls fully loaded?

(B) How does ASP.NET maintain state in between subsequent request?

(A) What is event bubbling?

(B) How do we assign page specific attributes?

(A) How do we ensure view state is not tampered?

(B) What is the use of @ Register directives?

(B) What is the use of Smart Navigation property?

(B) What is AppSetting Section in “Web.Config” file?

(B) Where is View State information stored?

(I) what is the use of @ Output Cache directive in ASP.NET.

(B) How can we create custom controls in ASP.NET?

(B) How many types of validation controls are provided by ASP.NET?

(B) Can you explain “AutoPostBack”?

(B) How can you enable automatic paging in Data Grid?

(B) What is the use of “GLOBAL.ASAX” file?

[url=http://www.codeproject.com/KB/aspnet/ASPNET1.aspx#WhatisthedifferencebetweenWebconfigand MachineConfig](B) What is the difference between “Web.config” and “Machine.Config”?[/url]

(B) What is a SESSION and APPLICATION object?


Introduction
In this section we will touch base on one of important concepts in
ASP. Net. You can download my .NET Interview Question PDF from http://www.questpond.com/SampleDotNetInterviewQuestionBook.zip .

I have also put all these design patterns in a video format and uploaded on http://www.questpond.com/FreeDesign1.htm . You can visit http://www.questpond.com and download the complete architecture interview questions PDF which covers SOA , UML , Design patterns , Togaf , OOPs etc.

You can download the software architecture interview questions PDF

Download Software Architecture Interview Questions

Previous parts of my Interview questions series for Architects

Part 1 - SoftArchInter1.aspx

Part 2 - SoftArch2.aspx

Part 3 - SoftArch3.aspx

Part 4 - SoftArch4.aspx

UML interview questions part 1 SoftArch5.aspx

Happy job hunting......

(B) What’ is the sequence in which ASP.NET events are processed?

Following is the sequence in which the events occur:-
• Page_Init.
• Page Load.
• Control events
• Page- Unload event.
Page_init event only occurs when first time the page is started, but Page Load occurs in subsequent request of the page.

(B) In which event are the controls fully loaded?

Page load event guarantees that all controls are fully loaded.
Controls are also accessed in Page_Init events but you will see that
view state is not fully loaded during this event.5
(B) How can we identify that the Page is Post Back?
Page object has an “IsPostBack” property, which can be checked to know that is the page posted back.

(B) How does ASP.NET maintain state in between subsequent request?

Refer caching chapter.

(A) What is event bubbling?

Server controls like Data grid, Data List, and Repeater can have
other child controls inside them. Example Data Grid can have combo box
inside data grid. These child control do not raise there events by
themselves, rather they pass the event to the container parent (which
can be a data grid, data list, repeater), which passed to the page as
“ItemCommand” event. As the child control send events to parent it is
termed as event bubbling.

(B) How do we assign page specific attributes?

Page attributes are specified using the @Page directive.

(A) How do we ensure view state is not tampered?

Using the @Page directive and setting ‘EnableViewStateMac’ property to True.

(B) What is the use of @ Register directives?

@Register directive informs the compiler of any custom server control added to the page.

(B) What is the use of Smart Navigation property?

It’s a feature provided by ASP. NET to prevent flickering and redrawing when the page is posted back.

Note:- This is only supported for IE browser. Project is who
have browser compatibility as requirements have to think some other
ways of avoiding flickering.


(B) What is AppSetting Section in “Web.Config” file?

Web.config file defines configuration for a web project. Using
“AppSetting” section, we can define user-defined values. Example below
defined is “Connection String” section, which will be used through out
the project for database connection.


(B) Where is View State information stored?

In HTML Hidden Fields.

(I) what is the use of @ Output Cache directive in ASP.NET.

It is used for caching. See more for Caching chapter.

(B) How can we create custom controls in ASP.NET?

User controls are created using .ASCX in ASP.NET. After .ASCX
file is created you need to two things in order that the ASCX can be
used in project:.

• Register the ASCX control in page using the

<%@ Register tag prefix="Accounting" Tag name="footer" Src="Footer.ascx" %>

• Now to use the above accounting footer in page you can use the below directive.

(B) How many types of validation controls are provided by ASP.NET?

There are six main types of validation controls:-

RequiredFieldValidator

It checks whether the control have any value. It is used when you want the control should not be empty.

RangeValidator

It
checks if the value in validated control is in that specific range.
Example TxtCustomerCode should not be more than eight lengths.

CompareValidator

It checks that the value in controls should match some specific value. Example Textbox TxtPie should be equal to 3.14.

RegularExpressionValidator

When we want the control, value should match with a specific regular expression.

CustomValidator

It is used to define User Defined validation.
Validation Summary
It displays summary of all current validation errors on an ASP.NET page.

Note: - It is rare that some one will ask step by step all the
validation controls. Rather they will ask for what type of validation
which validator will be used. Example in one of the interviews i was
asked how will you display summary of all errors in the validation
control...just uttered one word Validation summary.


(B) Can you explain “AutoPostBack”?

If we want the control to automatically post back in case of any
event, we will need to check this attribute as true. Example on a Combo
Box change we need to send the event immediately to the server side
then set the “AutoPostBack” attribute to true.

(B) How can you enable automatic paging in Data Grid?

Following are the points to be done in order to enable paging in Data grid:-
• Set the “Allow Paging” to true.
• In PageIndexChanged event set the current page index clicked.

Note: - The answers are very short, if you have implemented
practically its just a revision. If you are fresher, just make sample
code using Datagrid and try to implement this functionality.


(B) What is the use of “GLOBAL.ASAX” file?

It allows to execute ASP.NET application level events and setting application-level variables.

(B) What is the difference between “Web.config” and “Machine.Config”?

“Web.config” files apply settings to each web application, while
“Machine.config” file apply settings to all ASP.NET applications.

(B) What is a SESSION and APPLICATION object?

Session object store information between HTTP requests for a particular user, while application object are global across users.





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مُساهمةموضوع: رد: Asp.Net Interview 1   السبت سبتمبر 19, 2009 2:37 am

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فــي تــوقــيــع بــس ......
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مُساهمةموضوع: رد: Asp.Net Interview 1   الأحد سبتمبر 27, 2009 4:33 am

انتا فاهم القصة

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اللهم إرحم
من إشتآقت لهُم
أروآحنآ وهُم تحت آلترآب

آللهم اغفر لأرواح تنتظر منا
ما أصبحوآ يعجزَون عن تقديمہ

ربي اغفر لهم
بقدر مآ أحببناهم وأكثر وأكثر

بقدر ما هزنا واعيآنا
فقدهٌم ۅأكثر
ېَا رب بقدر نور نهارك أنِر قبورهم

بقدر سكٌون المقابر
أنزل السكينہ والطمأنينہ على أرواحهم
بقدر حاجتهم إليك إرحم إنقطاعهم

تقطعت بهم السُبل إلا منك
نزلوا بك ۅأنت خير منزول به
اللهم اغفر لهم وآرحممممهم


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قل دائما ..
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ولا تشغلني بما خلقته لي ..

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تبسم ..
فإن هناك من ..
يحبك .. يعتني بك .. يحميك .. ينصرك .. يسمعك .. يراك ..
هو الرحمن ..



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Asp.Net Interview 1
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