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IsolatedStorageFile.Dispose Method

Releases all resources used by the IsolatedStorageFile.

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

public void Dispose()



Call Dispose when you are finished using the IsolatedStorageFile. The Dispose method leaves the IsolatedStorageFile in an unusable state. After calling Dispose, you must release all references to the IsolatedStorageFile so the garbage collector can reclaim the memory that IsolatedStorageFile was occupying.


Always call Dispose before you release your last reference to the IsolatedStorageFile. Otherwise, the resources the IsolatedStorageFileStream is using will not be freed until garbage collection calls the IsolatedStorageFileStream object's Finalize method.

The following code example opens an isolated storage file, uses it to write information to a stream, closes the file, and then uses the Dispose method to release all resources.

IsolatedStorageFile isoFile;
isoFile = IsolatedStorageFile.GetUserStoreForDomain();

// Open or create a writable file.
IsolatedStorageFileStream isoStream =
    new IsolatedStorageFileStream(this.userName,

StreamWriter writer = new StreamWriter(isoStream);
// Calculate the amount of space used to record the user's preferences.
double d = isoFile.CurrentSize / isoFile.MaximumSize;
Console.WriteLine("CurrentSize = " + isoFile.CurrentSize.ToString());
Console.WriteLine("MaximumSize = " + isoFile.MaximumSize.ToString());
// StreamWriter.Close implicitly closes isoStream.
return d;

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.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.