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System.IO.IsolatedStorage Namespace

The System.IO.IsolatedStorage namespace contains types that allow the creation and use of isolated stores. With these stores, you can read and write data that less trusted code cannot access and prevent the exposure of sensitive information that can be saved elsewhere on the file system. Data is stored in compartments that are isolated by the current user and by the assembly in which the code exists. Additionally, data can be isolated by domain. Roaming profiles can be used in conjunction with isolated storage so isolated stores will travel with the user's profile. The IsolatedStorageScope enumeration indicates different types of isolation. For more information about when to use isolated storage, see Isolated Storage.

The IsolatedStorageFile class provides most of the necessary functionality for isolated storage. Use this class to obtain, delete and manage isolated storage. The IsolatedStorageFileStream class handles reading and writing files to a store. This is similar to reading and writing in standard File I/O classes. For more information about I/O, see the System.IO namespace.

For examples using isolated storage, see Isolated Storage

  Class Description
Public class IsolatedStorage Represents the abstract base class from which all isolated storage implementations must derive.
Public class IsolatedStorageException The exception that is thrown when an operation in isolated storage fails.
Public class IsolatedStorageFile Represents an isolated storage area containing files and directories.
Public class IsolatedStorageFileStream Exposes a file within isolated storage.
Public class IsolatedStorageSecurityState Provides settings for maintaining the quota size for isolated storage.
  Interface Description
Public interface INormalizeForIsolatedStorage Enables comparisons between an isolated store and an application domain and assembly's evidence.
  Enumeration Description
Public enumeration IsolatedStorageScope Enumerates the levels of isolated storage scope that are supported by IsolatedStorage.
Public enumeration IsolatedStorageSecurityOptions Specifies options that affect security in isolated storage.
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