DirectoryInfo Clase

Definición

public ref class DirectoryInfo sealed : System::IO::FileSystemInfo

public sealed class DirectoryInfo : System.IO.FileSystemInfo

[System.Serializable]
public sealed class DirectoryInfo : System.IO.FileSystemInfo

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class DirectoryInfo : System.IO.FileSystemInfo

type DirectoryInfo = class
    inherit FileSystemInfo

[<System.Serializable>]
type DirectoryInfo = class
    inherit FileSystemInfo

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type DirectoryInfo = class
    inherit FileSystemInfo

Public NotInheritable Class DirectoryInfo
Inherits FileSystemInfo

Herencia

Object

FileSystemInfo

DirectoryInfo

Herencia

Object

MarshalByRefObject

FileSystemInfo

DirectoryInfo

Atributos

SerializableAttribute ComVisibleAttribute

Ejemplos

En el ejemplo siguiente se muestran algunos de los miembros principales de la DirectoryInfo clase .

using System;
using System.IO;

class Test
{
    public static void Main()
    {
        // Specify the directories you want to manipulate.
        DirectoryInfo di = new DirectoryInfo(@"c:\MyDir");
        try
        {
            // Determine whether the directory exists.
            if (di.Exists)
            {
                // Indicate that the directory already exists.
                Console.WriteLine("That path exists already.");
                return;
            }

            // Try to create the directory.
            di.Create();
            Console.WriteLine("The directory was created successfully.");

            // Delete the directory.
            di.Delete();
            Console.WriteLine("The directory was deleted successfully.");
        }
        catch (Exception e)
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        }
        finally {}
    }
}

open System.IO

// Specify the directories you want to manipulate.
let di = DirectoryInfo @"c:\MyDir"
try
    // Determine whether the directory exists.
    if di.Exists then
        // Indicate that the directory already exists.
        printfn "That path exists already."
    else
        // Try to create the directory.
        di.Create()
        printfn "The directory was created successfully."

        // Delete the directory.
        di.Delete()
        printfn "The directory was deleted successfully."
with e ->
    printfn $"The process failed: {e}"

Imports System.IO

Public Class Test
    Public Shared Sub Main()
        ' Specify the directories you want to manipulate.
        Dim di As DirectoryInfo = New DirectoryInfo("c:\MyDir")
        Try
            ' Determine whether the directory exists.
            If di.Exists Then
                ' Indicate that it already exists.
                Console.WriteLine("That path exists already.")
                Return
            End If

            ' Try to create the directory.
            di.Create()
            Console.WriteLine("The directory was created successfully.")

            ' Delete the directory.
            di.Delete()
            Console.WriteLine("The directory was deleted successfully.")

        Catch e As Exception
            Console.WriteLine("The process failed: {0}", e.ToString())
        End Try
    End Sub
End Class

En el ejemplo siguiente se muestra cómo copiar un directorio y su contenido.

using System;
using System.IO;

class CopyDir
{
    public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
    {
        if (source.FullName.ToLower() == target.FullName.ToLower())
        {
            return;
        }

        // Check if the target directory exists, if not, create it.
        if (!Directory.Exists(target.FullName))
        {
            Directory.CreateDirectory(target.FullName);
        }

        // Copy each file into it's new directory.
        foreach (FileInfo fi in source.GetFiles())
        {
            Console.WriteLine(@"Copying {0}\{1}", target.FullName, fi.Name);
            fi.CopyTo(Path.Combine(target.ToString(), fi.Name), true);
        }

        // Copy each subdirectory using recursion.
        foreach (DirectoryInfo diSourceSubDir in source.GetDirectories())
        {
            DirectoryInfo nextTargetSubDir =
                target.CreateSubdirectory(diSourceSubDir.Name);
            CopyAll(diSourceSubDir, nextTargetSubDir);
        }
    }

    public static void Main()
    {
        string sourceDirectory = @"c:\sourceDirectory";
        string targetDirectory = @"c:\targetDirectory";

        DirectoryInfo diSource = new DirectoryInfo(sourceDirectory);
        DirectoryInfo diTarget = new DirectoryInfo(targetDirectory);

        CopyAll(diSource, diTarget);
    }

    // Output will vary based on the contents of the source directory.
}

open System.IO

let rec copyAll (source: DirectoryInfo) (target: DirectoryInfo) =
    if source.FullName.ToLower() <> target.FullName.ToLower() then
        // Check if the target directory exists, if not, create it.
        if not (Directory.Exists target.FullName) then
            Directory.CreateDirectory target.FullName |> ignore

        // Copy each file into it's new directory.
        for fi in source.GetFiles() do
            printfn $@"Copying {target.FullName}\{fi.Name}"
            fi.CopyTo(Path.Combine(string target, fi.Name), true) |> ignore

        // Copy each subdirectory using recursion.
        for diSourceSubDir in source.GetDirectories() do
            target.CreateSubdirectory diSourceSubDir.Name
            |> copyAll diSourceSubDir

let sourceDirectory = @"c:\sourceDirectory"
let targetDirectory = @"c:\targetDirectory"

let diSource = DirectoryInfo sourceDirectory
let diTarget = DirectoryInfo targetDirectory

copyAll diSource diTarget

// Output will vary based on the contents of the source directory.

Imports System.IO

Class CopyDir
    Shared Sub CopyAll(ByVal source As DirectoryInfo, ByVal target As DirectoryInfo)
        If (source.FullName.ToLower() = target.FullName.ToLower()) Then
            Return
        End If

        ' Check if the target directory exists, if not, create it.
        If Directory.Exists(target.FullName) = False Then
            Directory.CreateDirectory(target.FullName)
        End If

        ' Copy each file into it's new directory.
        For Each fi As FileInfo In source.GetFiles()
            Console.WriteLine("Copying {0}\{1}", target.FullName, fi.Name)
            fi.CopyTo(Path.Combine(target.ToString(), fi.Name), True)
        Next

        ' Copy each subdirectory using recursion.
        For Each diSourceSubDir As DirectoryInfo In source.GetDirectories()
            Dim nextTargetSubDir As DirectoryInfo = target.CreateSubdirectory(diSourceSubDir.Name)
            CopyAll(diSourceSubDir, nextTargetSubDir)
        Next
    End Sub

    Shared Sub Main()
        Dim sourceDirectory As String = "c:\\sourceDirectory"
        Dim targetDirectory As String = "c:\\targetDirectory"

        Dim diSource As DirectoryInfo = New DirectoryInfo(sourceDirectory)
        Dim diTarget As DirectoryInfo = New DirectoryInfo(targetDirectory)

        CopyAll(diSource, diTarget)
    End Sub
    ' Output will vary based on the contents of the source directory.
End Class

Comentarios

Use la DirectoryInfo clase para operaciones típicas, como copiar, mover, cambiar el nombre, crear y eliminar directorios.

Si va a reutilizar un objeto varias veces, considere la posibilidad de usar el método de instancia de DirectoryInfo en lugar de los métodos estáticos correspondientes de la Directory clase, ya que una comprobación de seguridad no siempre será necesaria.

En los miembros que aceptan una ruta de acceso, la ruta de acceso puede hacer referencia a un archivo o simplemente a un directorio. La ruta de acceso especificada también puede hacer referencia a una ruta de acceso relativa o a una ruta de acceso de convención de nomenclatura universal (UNC) para un servidor y un nombre de recurso compartido. Por ejemplo, todas las siguientes son rutas de acceso aceptables:

• "c:\\MyDir\\MyFile.txt" en C#, o "c:\MyDir\MyFile.txt" en Visual Basic.

• "c:\\MyDir" en C#, o "c:\MyDir" en Visual Basic.

• "MyDir\\MySubdir" en C#, o "MyDir\MySubDir" en Visual Basic.

• "\\\\MyServer\\MyShare" en C#, o "\\MyServer\MyShare" en Visual Basic.

De forma predeterminada, se concede acceso completo de lectura y escritura a nuevos directorios a todos los usuarios.

Para obtener una lista de tareas comunes de E/S, consulte Tareas comunes de E/S.

Consulte también

• File
• Attributes
• FileSystemWatcher
• Directory
• Path
• E/S de archivos y secuencias
• Cómo: Leer texto de un archivo
• Cómo: Escribir texto en un archivo
• Cómo: Leer y escribir en un archivo de datos recién creado