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IsolatedStorageFile.DeleteFile Method

Deletes a file in the isolated storage scope.

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

public void DeleteFile(
	string file


Type: System.String

The relative path of the file to delete within the isolated storage scope.


The target file is open or the path is incorrect.


The file path is null.

The deleted file cannot be recovered once deleted.

The How to: Delete Files and Directories in Isolated Storage example demonstrates the use of the DeleteFile method.

The following code example uses the DeleteFile method to delete a number of files in isolated storage.

public void DeleteFiles()
        IsolatedStorageFile isoFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User |
            IsolatedStorageScope.Assembly |

        String[] dirNames = isoFile.GetDirectoryNames("*");
        String[] fileNames = isoFile.GetFileNames("*");

        // List the files currently in this Isolated Storage. 
        // The list represents all users who have personal 
        // preferences stored for this application. 
        if (fileNames.Length > 0)
            for (int i = 0; i < fileNames.Length; ++i)
                // Delete the files.
            // Confirm that no files remain.
            fileNames = isoFile.GetFileNames("*");
    catch (Exception e)


Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

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

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