ASP.NET - what is the difference between application state and caching

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what is the difference between application state and caching

Total Answers and Comments: 3

Last Update: September 10, 2009 Asked by: manjunath

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Best Rated Answer

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Submitted by: me.seenu

Application variable is the global variable specific to application but a
caching variable is specifc to page and time out.

Above answer was rated as good by the following members:
mangayar

December 06, 2007 05:11:08

me.seenu

Member Since: November 2007 Contribution: 4

RE: what is the difference between application state and caching

Application variable is the global variable specific to application but a
caching variable is specifc to page and time out.

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Overall Rating: +1

June 29, 2009 00:57:33

mangayar

Member Since: June 2009 Contribution: 1

RE: what is the difference between application state and caching

Application variables exist as long as the application is alive. Whereas the cache has the Property of timeout which allows us to control the duration of the Objects so cached.
Another usefulness in caching is that we can define the way we cache our output since caching can be done in 3 ways -
a) Full Page - defined in page directrive
b) Partial Page - Eg - .ascx control
c) Data / Programatic caching. using the Properties of Cache object such as Cache.Insert .

NOTE:
Caching variable is specifc to page and time out
Application variable is the global variable specific to application

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September 10, 2009 05:55:45

kirangiet

Member Since: June 2009 Contribution: 24

RE: what is the difference between application state and caching

Application Object and Cached Object both falls under Server side State Management.

Application object resides in InProc i.e. on the same server where we hosted our application.
Cache Object resides on server side/ DownStream/Client Side.

Application Object will be disposed once application will stop.
Cache Object can be disposed using Time based cache dependency.

Only one user can access Application Object at a time hence we have to lock it every time we modify it.

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