Cómo: Eliminar archivos y directorios en almacenamiento aislado
Se pueden eliminar los directorios y archivos de un archivo de almacenamiento aislado. Recuerde que dentro de un almacén, los nombres de archivo y de directorio dependen del sistema operativo (normalmente, no hay distinción entre mayúsculas y minúsculas en los sistemas de Microsoft Windows) y se especifican en relación con la raíz del sistema de archivos virtual.
La clase IsolatedStoreFile proporciona dos métodos de instancia para eliminar directorios y archivos, DeleteDirectory y DeleteFile. Si se intenta eliminar un archivo o directorio que no existe, se produce una IsolatedStorageFileException. Si se incluye un carácter comodín en el nombre, DeleteDirectory inicia una IsolatedStorageFileException mientras que DeleteFile inicia una ArgumentException.
Si el directorio contiene archivos o subdirectorios, se produce un error en DeleteDirectory. En el ejemplo DeletingFilesAndDirectories se define un método que elimina todo el contenido de un directorio y, a continuación, el propio directorio. De la misma manera, es posible definir un método DeleteFiles propio que acepte un carácter comodín usando el método GetFileNames para obtener una lista de todos los archivos coincidentes y, a continuación, eliminarlos de uno en uno. Para obtener más información sobre las búsquedas en el sistema de archivos virtual de un almacén, vea Buscar archivos y directorios existentes.
Ejemplo de DeletingFilesAndDirectories
En el siguiente ejemplo de código se crean varios directorios y archivos y, a continuación, se eliminan.
Imports System
Imports System.IO.IsolatedStorage
Imports System.IO
Public Class DeletingFilesDirectories
Public Shared Sub Main()
' Get a new isolated store for this user domain and assembly.
' Put the store into an isolatedStorageFile object.
Dim isoStore As IsolatedStorageFile = IsolatedStorageFile.GetStore(IsolatedStorageScope.User Or
IsolatedStorageScope.Domain Or IsolatedStorageScope.Assembly, Nothing, Nothing)
Console.WriteLine("Creating Directories:")
' This code creates several different directories.
isoStore.CreateDirectory("TopLevelDirectory")
Console.WriteLine("TopLevelDirectory")
isoStore.CreateDirectory("TopLevelDirectory/SecondLevel")
Console.WriteLine("TopLevelDirectory/SecondLevel")
' This code creates two new directories, one inside the other.
isoStore.CreateDirectory("AnotherTopLevelDirectory/InsideDirectory")
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory")
Console.WriteLine()
' This code creates a few files and places them in the directories.
Console.WriteLine("Creating Files:")
' This file is placed in the root.
Dim isoStream1 As New IsolatedStorageFileStream("InTheRoot.txt", FileMode.Create, isoStore)
Console.WriteLine("InTheRoot.txt")
isoStream1.Close()
' This file is placed in the InsideDirectory.
Dim isoStream2 As New IsolatedStorageFileStream(
"AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt", FileMode.Create, isoStore)
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt")
Console.WriteLine()
isoStream2.Close()
Console.WriteLine("Deleting File:")
' This code deletes the HereIAm.txt file.
isoStore.DeleteFile("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt")
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt")
Console.WriteLine()
Console.WriteLine("Deleting Directory:")
' This code deletes the InsideDirectory.
isoStore.DeleteDirectory("AnotherTopLevelDirectory/InsideDirectory/")
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/")
Console.WriteLine()
End Sub ' End of main.
End Class
using System;
using System.IO.IsolatedStorage;
using System.IO;
public class DeletingFilesDirectories
{
public static void Main()
{
// Get a new isolated store for this user domain and assembly.
// Put the store into an isolatedStorageFile object.
IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.User |
IsolatedStorageScope.Domain | IsolatedStorageScope.Assembly, null, null);
Console.WriteLine("Creating Directories:");
// This code creates several different directories.
isoStore.CreateDirectory("TopLevelDirectory");
Console.WriteLine("TopLevelDirectory");
isoStore.CreateDirectory("TopLevelDirectory/SecondLevel");
Console.WriteLine("TopLevelDirectory/SecondLevel");
// This code creates two new directories, one inside the other.
isoStore.CreateDirectory("AnotherTopLevelDirectory/InsideDirectory");
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory");
Console.WriteLine();
// This code creates a few files and places them in the directories.
Console.WriteLine("Creating Files:");
// This file is placed in the root.
IsolatedStorageFileStream isoStream1 = new IsolatedStorageFileStream("InTheRoot.txt",
FileMode.Create, isoStore);
Console.WriteLine("InTheRoot.txt");
isoStream1.Close();
// This file is placed in the InsideDirectory.
IsolatedStorageFileStream isoStream2 = new IsolatedStorageFileStream(
"AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt", FileMode.Create, isoStore);
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console.WriteLine();
isoStream2.Close();
Console.WriteLine("Deleting File:");
// This code deletes the HereIAm.txt file.
isoStore.DeleteFile("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console.WriteLine();
Console.WriteLine("Deleting Directory:");
// This code deletes the InsideDirectory.
isoStore.DeleteDirectory("AnotherTopLevelDirectory/InsideDirectory/");
Console.WriteLine("AnotherTopLevelDirectory/InsideDirectory/");
Console.WriteLine();
} // End of main.
}
using namespace System;
using namespace System::IO::IsolatedStorage;
using namespace System::IO;
public ref class DeletingFilesDirectories
{
public:
static void Main()
{
// Get a new isolated store for this user domain and assembly.
// Put the store into an isolatedStorageFile object.
IsolatedStorageFile^ isoStore = IsolatedStorageFile::GetStore(IsolatedStorageScope::User |
IsolatedStorageScope::Domain | IsolatedStorageScope::Assembly, (Type ^)nullptr, (Type ^)nullptr);
Console::WriteLine("Creating Directories:");
// This code creates several different directories.
isoStore->CreateDirectory("TopLevelDirectory");
Console::WriteLine("TopLevelDirectory");
isoStore->CreateDirectory("TopLevelDirectory/SecondLevel");
Console::WriteLine("TopLevelDirectory/SecondLevel");
// This code creates two new directories, one inside the other.
isoStore->CreateDirectory("AnotherTopLevelDirectory/InsideDirectory");
Console::WriteLine("AnotherTopLevelDirectory/InsideDirectory");
Console::WriteLine();
// This code creates a few files and places them in the directories.
Console::WriteLine("Creating Files:");
// This file is placed in the root.
IsolatedStorageFileStream^ isoStream1 = gcnew IsolatedStorageFileStream("InTheRoot.txt",
FileMode::Create, isoStore);
Console::WriteLine("InTheRoot.txt");
isoStream1->Close();
// This file is placed in the InsideDirectory.
IsolatedStorageFileStream^ isoStream2 = gcnew IsolatedStorageFileStream(
"AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt", FileMode::Create, isoStore);
Console::WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console::WriteLine();
isoStream2->Close();
Console::WriteLine("Deleting File:");
// This code deletes the HereIAm.txt file.
isoStore->DeleteFile("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console::WriteLine("AnotherTopLevelDirectory/InsideDirectory/HereIAm.txt");
Console::WriteLine();
Console::WriteLine("Deleting Directory:");
// This code deletes the InsideDirectory.
isoStore->DeleteDirectory("AnotherTopLevelDirectory/InsideDirectory/");
Console::WriteLine("AnotherTopLevelDirectory/InsideDirectory/");
Console::WriteLine();
} // End of main.
};
int main()
{
DeletingFilesDirectories::Main();
}