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IsolatedStorageFile.GetUserStoreForApplication Method

Obtains user-scoped isolated storage corresponding to the calling code's application identity.

Namespace:  System.IO.IsolatedStorage
Assembly:  mscorlib (in mscorlib.dll)

public static IsolatedStorageFile GetUserStoreForApplication()

Return Value

Type: System.IO.IsolatedStorage.IsolatedStorageFile
An object corresponding to the isolated storage scope based on the calling code's assembly identity.


Sufficient isolated storage permissions have not been granted.


An isolated storage location cannot be initialized.


The application identity of the caller cannot be determined, because the ActivationContext property returned null.


The permissions for the application domain cannot be determined.

All assemblies associated with an application use the same isolated store when using this method. This method can be used only when the application identity can be determined - for example, when the application is published through ClickOnce deployment or is a Silverlight-based application. If you attempt to use this method outside a ClickOnce or Silverlight-based application, you will receive an IsolatedStorageException exception, because the application identity of the caller cannot be determined.

GetUserStoreForApplication is functionally equivalent to the following code:

isoFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.Application |
    IsolatedStorageScope.User, null);

In this code, the applicationIdentity parameter for GetStore(IsolatedStorageScope scope, Object applicationIdentity) is null.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.