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How to remove a Session variable?

Posted By :varun bansal     Posted Date :July 28, 2009    Points :10   Category :ASP.Net 
using HttpSessionState.Remove();

You can also find related Interview Question to How to remove a Session variable?  below: 

Is it possible to set SessionState to readonly mode? Readonly mode means, we can only read data from session but we can not write any data in session variable?

  
Yes, it is possible.
EnableSessionState property has a value "Readonly" which actually makes the session state read only.

Thanks. (More...)

can we use session variable in App_code Class page ?

  
Yes.
By using "HttpContext.Current.Session("VarName") ", we can use current session variable in App_code Class page (More...)

Differences between application and session.

  
The session object maintains state on a per client basis whereas the application object is on a per application basis and is consistent across all client requests. (More...)

Session state vs View state

  
In some cases, using view state is not feasible. The alternative for view state is session state. Session state is employed under the following situations:
. Large amounts of data - View state tends to increase the size of both the HTML page sent to the browser and the size of form posted back. Hence session state is used.
. Secure data - Though the view state data is encoded and may be encrypted, it is better and secure if no sensitive data is sent to the client. Thus, session state is a more secure option.
. Problems in serializing of objects into view state - View state is efficient for a small set of data. Other types like DataSet are slower and can generate a very large view state (More...)

what is different between session and application

  
session is a object that store information between http request for a paticular user.
->But application object are global for each user (More...)

How to add and remove an assembly from GAC?

  
There are two ways to install .NET assembly in GAC:-
. Using Microsoft Installer Package. You can get download of installer from http://www.microsoft.com.
. Using Gacutil. Goto "Visual Studio Command Prompt" and type "gacutil -i (assembly_name)", where (assembly_name) is the DLL name of the project. (More...)

How do you explicitly kill a user session?

  
To kill Session you have to use Session.Abandon() with this method we can explicitly kill a user session. (More...)

if we remove a web.config file from the application , is this application will work?

  
It Depends on coding if we used something that is required to pioc values from configuration file then its required otherwise we can run our application without web.config. (More...)

Is the session Timeout attribute a sliding timeout value?

  
The session Timeout is a sliding expiration time, meaning whever your page access session state, the expiration time will be moved forward. Please note that as long as a page has NOT disabled session state, it will access the session automatically when requested.


Regards
Santosh
http://santoshdotnetarena.blogspot.com/ (More...)

What is the difference between Session.Abandon() and Session.Clear()?

  
The major practical difference is that if you call Session.Abandon(), Session_End will be fired (for InProc mode), and in the next request, Session_Start will be fired. Session.Clear( ) just clears the session data without killing it.

Ragards
Santosh
http://santoshdotnetarena.blogspot.com/ (More...)

Which typically consumes more memory: application state or session state?

  
Session state tends to use much more memory than application state, because copies of all variables are stored for each user. (More...)

Which might not work if a user has disabled cookies in his or her Web browser: application state or session state?

  
Session state, by default, won't work if a Web browser that supports cookies has cookies disabled. Application state isn't user-specific, though, and doesn't need to be tracked in cookies. Therefore, application state works regardless of cookies. (More...)

Which typically consumes more memory: application state or session state?

  
Session state tends to use much more memory than application state, because copies of all variables are stored for each user. (More...)

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