Working with Isolated Storage

Posted Date: 26 Jun 2008 Resource Type: Articles Category: .NET Framework

Posted By: Shilpa Ginode Member Level: Gold
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As we know that watever data we stored it gets stored in memory. If we are saving data in memory so for security purpose if our data is bit criticle one then we need to have access permission sets for allowing only certain user to access the data.Another way of storing the data is in Cache.Usually running program is less priviledges has many benifits.
It would be nice to have safe place to store the data of application without having to test whether application has access to store the data on hard drive.

Isolated storage provieds this benifits.
Isolated storage means to store the data or information in the safe place without needing to resort to have user grant permission to access specific file or directory on file system.
The main advantage of Isolated Stored in that your application can run regardless of whether it is running under partial or full trust.
For isolated storage there is class provided by .Net framework called IsolatedStorageFile class.
It provided the basic functionality to create files or directories in Isolated Storage.
Some of the methods exposed by this class are:
1. GetMachineStoreForAssembly() - it gets the machine level storage for the assembly which is calling this class.
2.GetMAchineStoreForDomain() - it gets the machine level storage for the appdomain in the assembly which is calling this class.

there are some more methods as:
GetMachineStoreForAPplication
GetStore
GetUserStoreForApplication
GetUserStoreForDomain
GetUserStoreForAssembly etc.

Hope this much introduction is helpful to you all.

Thanks
Shilpa

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