IsolatedStorageFile.DeleteDirectory(String) Method

Reference

Definition

Namespace:: System.IO.IsolatedStorage

Assemblies:: mscorlib.dll, System.IO.IsolatedStorage.dll

Assemblies:: netstandard.dll, System.IO.IsolatedStorage.dll

Assembly:: System.IO.IsolatedStorage.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: IsolatedStorageFile.cs

Source:: IsolatedStorageFile.cs

Source:: IsolatedStorageFile.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Deletes a directory in the isolated storage scope.

public:
 void DeleteDirectory(System::String ^ dir);

public void DeleteDirectory(string dir);

member this.DeleteDirectory : string -> unit

Public Sub DeleteDirectory (dir As String)

Parameters

dir: String

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

Exceptions

IsolatedStorageException

The directory could not be deleted.

ArgumentNullException

The directory path was null.

Examples

// 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.
void DeleteDirectories()
{
   try
   {
      IsolatedStorageFile^ isoFile = IsolatedStorageFile::GetStore( static_cast<IsolatedStorageScope>(IsolatedStorageScope::User | IsolatedStorageScope::Assembly | IsolatedStorageScope::Domain), System::Security::Policy::Url::typeid, System::Security::Policy::Url::typeid );
      array<String^>^dirNames = isoFile->GetDirectoryNames( "*" );
      array<String^>^fileNames = isoFile->GetFileNames( "Archive\\*" );
      
      // Delete the current files within the Archive directory.
      if ( fileNames->Length > 0 )
      {
         for ( int i = 0; i < fileNames->Length; ++i )
         {
            
            //delete files
            isoFile->DeleteFile( String::Concat("Archive\\", fileNames[ i ]) );

         }
         fileNames = isoFile->GetFileNames( "Archive\\*" );
      }
      if ( dirNames->Length > 0 )
      {
         for ( int i = 0; i < dirNames->Length; ++i )
         {
            
            // Delete the Archive directory.
            isoFile->DeleteDirectory( dirNames[ i ] );

         }
      }
      dirNames = isoFile->GetDirectoryNames( "*" );
      isoFile->Remove();
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( e->ToString() );
   }

}

// 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()
{
    try
    {
        IsolatedStorageFile isoFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User |
            IsolatedStorageScope.Assembly |
            IsolatedStorageScope.Domain,
            typeof(System.Security.Policy.Url),
            typeof(System.Security.Policy.Url));
        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("*");
        isoFile.Remove();
    }
    catch (Exception e)
    {
        Console.WriteLine(e.ToString());
    }
}

' 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 Sub DeleteDirectories()
    Try
        Dim isoFile As IsolatedStorageFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User _
            Or IsolatedStorageScope.Assembly Or IsolatedStorageScope.Domain, _
            GetType(System.Security.Policy.Url), GetType(System.Security.Policy.Url))
        Dim name As String
        Dim dirNames As String() = isoFile.GetDirectoryNames("*")
        Dim fileNames As String() = isoFile.GetFileNames("Archive\*")
        ' Delete all the files currently in the Archive directory.
        If fileNames.Length > 0 Then
            For Each name In fileNames
                isoFile.DeleteFile(("Archive\" & name))
            Next name
            'Confirm no files are left.
            fileNames = isoFile.GetFileNames("Archive\*")
        End If
        If dirNames.Length > 0 Then
            For Each name In dirNames
                ' Delete the Archive directory.
                isoFile.DeleteDirectory(name)
            Next name
        End If
        dirNames = isoFile.GetDirectoryNames("*")
        isoFile.Remove()
    Catch ex As Exception
        Console.WriteLine(ex.ToString())
    End Try
End Sub

Remarks

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.

Applies to

Termék	Verziók
.NET	Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1
UWP	10.0

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