DriveInfo.AvailableFreeSpace Eigenschaft

Definition

Gibt die Gesamtmenge an verfügbarem freiem Speicherplatz in Bytes ab, die auf einem Laufwerk verfügbar ist.Indicates the amount of available free space on a drive, in bytes.

public:
 property long AvailableFreeSpace { long get(); };
public long AvailableFreeSpace { get; }
member this.AvailableFreeSpace : int64
Public ReadOnly Property AvailableFreeSpace As Long

Eigenschaftswert

Die auf dem Laufwerk verfügbare Menge an freiem Speicherplatz in Bytes.The amount of free space available on the drive, in bytes.

Ausnahmen

Zugriff auf Laufwerksinformationen wird verweigert.Access to the drive information is denied.

E/A-Fehler (z. B. ein Datenträgerfehler, oder ein Laufwerk war nicht bereit).An I/O error occurred (for example, a disk error or a drive was not ready).

Beispiele

Im folgenden Codebeispiel wird die Verwendung DriveInfo der-Klasse zum Anzeigen von Informationen zu allen Laufwerken des aktuellen Systems veranschaulicht.The following code example demonstrates the use of the DriveInfo class to display information about all of the drives on the current system.

using System;
using System.IO;

class Test
{
    public static void Main()
    {
        DriveInfo[] allDrives = DriveInfo.GetDrives();

        foreach (DriveInfo d in allDrives)
        {
            Console.WriteLine("Drive {0}", d.Name);
            Console.WriteLine("  Drive type: {0}", d.DriveType);
            if (d.IsReady == true)
            {
                Console.WriteLine("  Volume label: {0}", d.VolumeLabel);
                Console.WriteLine("  File system: {0}", d.DriveFormat);
                Console.WriteLine(
                    "  Available space to current user:{0, 15} bytes", 
                    d.AvailableFreeSpace);

                Console.WriteLine(
                    "  Total available space:          {0, 15} bytes",
                    d.TotalFreeSpace);

                Console.WriteLine(
                    "  Total size of drive:            {0, 15} bytes ",
                    d.TotalSize);
            }
        }
    }
}
/* 
This code produces output similar to the following:

Drive A:\
  Drive type: Removable
Drive C:\
  Drive type: Fixed
  Volume label: 
  File system: FAT32
  Available space to current user:     4770430976 bytes
  Total available space:               4770430976 bytes
  Total size of drive:                10731683840 bytes 
Drive D:\
  Drive type: Fixed
  Volume label: 
  File system: NTFS
  Available space to current user:    15114977280 bytes
  Total available space:              15114977280 bytes
  Total size of drive:                25958948864 bytes 
Drive E:\
  Drive type: CDRom

The actual output of this code will vary based on machine and the permissions
granted to the user executing it.
*/
Imports System.IO

Class Test
    Public Shared Sub Main()
        Dim allDrives() As DriveInfo = DriveInfo.GetDrives()

        Dim d As DriveInfo
        For Each d In allDrives
            Console.WriteLine("Drive {0}", d.Name)
            Console.WriteLine("  Drive type: {0}", d.DriveType)
            If d.IsReady = True Then
                Console.WriteLine("  Volume label: {0}", d.VolumeLabel)
                Console.WriteLine("  File system: {0}", d.DriveFormat)
                Console.WriteLine( _
                    "  Available space to current user:{0, 15} bytes", _
                    d.AvailableFreeSpace)

                Console.WriteLine( _
                    "  Total available space:          {0, 15} bytes", _
                    d.TotalFreeSpace)

                Console.WriteLine( _
                    "  Total size of drive:            {0, 15} bytes ", _
                    d.TotalSize)
            End If
        Next
    End Sub
End Class
'This code produces output similar to the following:
'
'Drive A:\
'  Drive type: Removable
'Drive C:\
'  Drive type: Fixed
'  Volume label: 
'  File system: FAT32
'  Available space to current user:     4770430976 bytes
'  Total available space:               4770430976 bytes
'  Total size of drive:                10731683840 bytes 
'Drive D:\
'  Drive type: Fixed
'  Volume label: 
'  File system: NTFS
'  Available space to current user:    15114977280 bytes
'  Total available space:              15114977280 bytes
'  Total size of drive:                25958948864 bytes 
'Drive E:\
'  Drive type: CDRom
'
'The actual output of this code will vary based on machine and the permissions
'granted to the user executing it.

Hinweise

Diese Eigenschaft gibt die Menge des verfügbaren freien Speicherplatzes auf dem Laufwerk an.This property indicates the amount of free space available on the drive. Beachten Sie, dass sich diese Zahl von der TotalFreeSpace Zahl unterscheiden kann, da diese Eigenschaft Datenträger Kontingente berücksichtigt.Note that this number may be different from the TotalFreeSpace number because this property takes into account disk quotas.

Gilt für: