ASP.Net

Discuss Projectbased development vs Projectless development  -- deploying , debugging, adding assembly references etc...
Can we have a web site having different language code behinds for pages? One page C# , another one VB.Net?
Code behind model in .Net 1.1 and 2.0   -- CodeBehind , CodeFile properties
How Code-Behind Files Are Connected to Pages?
ASP.Net page life cycle
View State Chunking
XHTML compliance
Discuss important page properties
How to get context or read context info in a page?
How to read values posted in a request?
How to read query string values?
How to send multiple values in query string?
Request.Url and Request.Urlreferrer
Response.Redirect() Vs Server.Transfer vs Server.Execute()
How to get error occurred in a web application? Server.GetLastError()

usercontrol vs custom server control
usercontrol vs webpage  -- usage, declaration, events etc...
why usercontrol has page_load event?
how to register a usercontrol in webpage and web.config
How to convert a page in to user control?
How to read a value set in view state of usercontrol from a web page?
page.page_load vs user control page_load -- which one is called first, and finishes execution?
What is the use of customized eventargs?
dynamic loading of usercontrols  -- webparts in building a portal
How to set caching on a user control? 1. Outputcache 2 ParticalCaching attribute on usercontrol class
Explain 'VaryByControl' in caching? How it can be used and where it is used?
Is it possible to have pages having different languages in a project?
Where would you attach events in code file in VS 2.0?
Discuss and compare -- project less development (web site) vs  project (web application) mode
Code Behind in VS 1.1  Vs CodeFile in VS 2.0
No. of ways in setting a break point
Which controls requires AutoPostBack="true" for posting the page back to server wrt their events?
Page class useful properties -- Session, Cache, Application, Request, Response, Server, User, Trace
Discuss HTML and URL Encoding
Page class hierarchy --  Page -> TemplateControl -> Control
How to declare a hidden control?   <input type="hidden">
RegisterClientScriptBlock() and RegisterStartupScript() method
How to set focus on a control when page loads
Use of Default Button property
How to set a validation property for user control / custom control?  
-- set [ValidationProperty("Text")] for the control class
How to logically group a set of validation controls in a page?
CausesValidation is property of webcontrol
Difference between # and $ expressions in asp.net

control.ClientId
HtmlContainerControl  innerHTML and innerText properties
Discuss the ServerClick and ServerChange Events of html controls
Html control vs web control
How to perform input validation?
How to perform selective validation in a web page for a group of controls ?
Discuss RequiredField, Range, Compare, RegularExpressionValidators
How to write a customvalidator?
What is ValidationSummary control and how to use it?
When validation is performed at server side?

Use of Global.asax file? What are the events inside global.asax?
what is min number of web.config files required in a web application?
Discuss ProcessModel and machinekey elements in config file
Different config sections in a web.config?
How to create and register a custom config section?
How to set different config settings for a folder?
How to turn off overriding config settings in web.config?
How to read config info programmatically? -- Use System.Web.Configuration.WebConfigurationManager
use of <location> elements    -- allowoverride property
CustomErrors - On, off, remote only
Use of WAT tool
How to encrypt config file ?  command line utility  -- aspnet_regiis -pe
What is the file extension of a module and httphandler?
Ways of registering httphandlers?
How to read session in httphandlers?
use of httpmodules?
httphandler vs httpmodule?

Compare different state management techniques:  ViewState, Session, ApplicationState, Cookie, QueryString, Profile
SessionState vs profile
When Data is read from and written to ViewState?
How to tamper proof ViewState? EnableViewStateMac
Is it required to be serializalbe for a custom object in order to store in ViewState and Session? Is it mandatory?
Discuss cross page posting and page events, IsPostback, IsCrossPagePostBack
How to accessing previous page in a page for cross page post back?
How to detect postback, crosspage postback and server.transfer() cases?
Validation in CrossPage PostBack situation
How to add cookie, store and read values from cookie?
When SessionId is created? How it is transferred back and forth?
Configuring SessionState for browsers which supprot cookie and do not support cookies in single configuration?
Discuss various session modes?
Whether SessionState cookie is different from authentication cookie?
Does view state is required to be enabled for a TextBox?
In case of http-post entire form (all controls) is submitted. If all controls state can be repopulated from view state, then why is it required to include all controls in post back

request rather than hidden view state field?
What are the properties of controls which do not need view state?
When Data is written to ViewState and read from ViewState?
Can ViewState store the change of control state happened in client side (by user / java script changes) ?
ViewState Chunking


What is the base class of a Master Page?
Execution order  -- Master page . page_load  , content page . Page_load?
How to communicate between master page and content page?
How many ways a master page can be set for a content page?
How to refer specific master page type in a content page code?  typecast page.master or <%@ MasterType VirtualPath="~/SiteTemplate.master" %>
How to access a control in Master Page from content page code? user master page FindControl() method
Discuss nesting of master pages?
What should be the url if Master page contains two content pages?
What happens if content page is not implementing all content place holders inside a master page?
How to resovle path issues in Master pages for images, files ...etc?
Compare a usercontrol vs master page?
Themes vs StyleSheets?
What is skin file? Is it possible for to have multiple skin files inside a theme folder? If so, what about conflicts in skin files?
How many skin files a theme folder can contain? Are there any restrictions on that?
What is skinid? How to use it? What is enablethemeing property?
How to set themes for web page, entire web application?
Compare -- Stylesheet file, inline style, control having style and theme -- which one wins?
Explain this situation and what style applied for a control if it has style specified in control itself, style through stylesheet and theme? Which one wins and why?
Handling theming conflicts -- explain StyleSheetTheme property?
Why themes are required? Why can't u use stylesheets in place of themes? Do themes replaces CSS stylesheets?
How to make specific control opt out of theming?
Named Skins... What happens if all skins are named, and no skin is specified in control?
How to set a theme for entire web site and disable it for a single web page?
Where Theme,StyleSheetTheme,SkinId, EnableTheming properties can be used? for Page or control?

ADO.Net  - Connected layer vs disconnected layer
Discuss Data Provider Factory
Storing a connecting string in AppSettings vs ConnectionStrings
DataReader vs DataAdapter
How to read row from DataReader? How to read second / multiple results from data reader?
If there is an error while executing sql statement / stored proc using ExecuteReader method ... when this error is visible in code? Is it when calling executereader() or Read()

method? explain in multiple results situation
Is it required to Open() the sqlconnection for DataReader and DataAdapter?
How to execute a UDF (function)  using SqlCommand?
is it possible to execute queries asnchronously using sqlcommand object?
how to read out param from stored proc in ADO.Net?
How to creat a DataRow for a given table?
DataRowState, DataRowVersion
How to filter data in DataTable? Sort data?
How to establish primary key - foreign key relationship in dataset tables? How to get child records?
CommandType.TableDirect of SqlCommand

Rich data contorls :
Discuss GridView, DetailsView,FormsView, ListView

How to set OutputCache?
Discuss varybyparam, varybyheader, varybycustom, varybycontrol properties             varybyparam='browser'
Fragment caching and post cache substitution
How to set cache profiles
DataCaching and datasource caching (Caching with the Data Source Controls)
Is the Cache object thread safe?
Discuss CacheDependencies?
Caching with sqldatasource, objectdatasource
File and Cache Item Dependencies
Handling Itemremoved callback
Custom Cache dependencies
Discuss Asynchronous pages

Authentication
Authorization
Profiles

Directory, File classes vs driveinfo, directoryinfo, fileinfo classes
How to upload a file to a website? FileUpload control

How to specify namespace in xml file?
Well formed xml document
xml schema vs .dtd file
How to read and write xml files programmatically?
Reading / navigating through xml files using xmldocument, xpathnavigator and xdocument (LINQ)
THE XMLDOCUMENT AND USER CONCURRENCY
Xmldocument  -> Load() vs LoadXml()
Searching xml elements with XPath
Xmldocument.Load() vs Xdocument.Load()
asp.net xml control vs asp.net xmldatasource