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IsolatedStorageFile.DeleteDirectory Method

Deletes a directory in the isolated storage scope.

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

public void DeleteDirectory(
	string dir


Type: System.String
The relative path of the directory to delete within the isolated storage scope.


The directory could not be deleted.


The directory path was null.

A directory must be empty before it is deleted. The deleted directory cannot be recovered once deleted.

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

// This method deletes directories in the specified Isolated Storage, after first 
// deleting the files they contain. In this example, the Archive directory is deleted. 
// There should be no other directories in this Isolated Storage.
public void DeleteDirectories()
        IsolatedStorageFile isoFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User |
            IsolatedStorageScope.Assembly |
        String[] dirNames = isoFile.GetDirectoryNames("*");
        String[] fileNames = isoFile.GetFileNames("Archive\\*");

        // Delete all the files currently in the Archive directory.

        if (fileNames.Length > 0)
            for (int i = 0; i < fileNames.Length; ++i)
                // Delete the files.
                isoFile.DeleteFile("Archive\\" + fileNames[i]);
            // Confirm that no files remain.
            fileNames = isoFile.GetFileNames("Archive\\*");

        if (dirNames.Length > 0)
            for (int i = 0; i < dirNames.Length; ++i)
                // Delete the Archive directory.
        dirNames = isoFile.GetDirectoryNames("*");
    catch (Exception e)

.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.