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2- Session Variable
Cookies are also used to facilitate automatic login by persisting user id in a cake save in user's browser.
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Session variables consumes server memories,
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Application variables conduct like static variables and they are substitute of static variables as static variables are stateless in web applications
Viewstate.Add( "TotalStudents",
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Session variables are normally the maximum commonly used.
3- Application variables
Cache is basically a resource specific state persistence feature, means unlike session it mallet with resource instead of user, case in point: pages, controls etc.
Cookies are some merits saved in browsers by the website to retrivbbe and use afterwards.
When a consumer visits a site, it's sessions starts and while the user transform laze or depart the site, the session ends.
Usually cookies are accustom to help dynamic websites to identify observers and recover their saved preferences.
You tin also explicitly multiplication values in it,
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Viewstate should be used when you ambition to save a value between diferent roundtrips of a unattached page as viewstate of a page is not affable by dissimilar page.
4- Cache
1- Viewstate
Data storage can be used to storage frequently used catalogue of values e.g. catalogue of products
6- Cookies
Viewstate
Session Variables
Application Variables
Cache
Cookies
Cache is probably the least used state feature of ASP.NET.
Problem with Web Applications
Because Viewstate renders with the page, it consumes bandwith, so be scrupulous apt use it in petitions apt be sprint aboard cheap bandwith.
Only shared values should be continued in Application variables, and as presently for they are no in use they should be removed explicitly.
Because cookies have been saved at client side, they do not create representation issues but may create security issues as they can be hacked from browser.
Session variables should be used to save and retrive user specefic information necessitated on multiple pages.
Now the question arises namely when to use what?
Web Applications are natively statesless, means once a web page renders from server to consumer, naught remains on server and the afterward period user submits the page you must load always values and build the page afresh.
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Viewstate is a invisible fields in an ASP.NET page, contains state of those controls on a page whose "EnableViewstate" property is "true".
How to Choose From Viewstate,
tory burch canvas tote, Session, Application,
mbt m walk, Cache, and Cookies
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Cache should be used or frequently used pages, controls, and data structures
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Finally remember the following points on your finger-tips:
Viewstate is bandwidth hungry
Session variables are memory hungry as per number of users
Applications variables are shared
Cache is memories hungry as per digit of resources
Cookies are the fewest secure
Application variables are shared variables among all users of a web application
ASP.NET provides multiple easy solutions to this problems like:
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