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DriveInfo Class

Provides access to information on a drive.

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

'Declaration
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public NotInheritable Class DriveInfo _
	Implements ISerializable

The DriveInfo type exposes the following members.

  NameDescription
Public methodDriveInfoProvides access to information on the specified drive.
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  NameDescription
Public propertyAvailableFreeSpaceIndicates the amount of available free space on a drive, in bytes.
Public propertyDriveFormatGets the name of the file system, such as NTFS or FAT32.
Public propertyDriveTypeGets the drive type, such as CD-ROM, removable, network, or fixed.
Public propertyIsReadyGets a value that indicates whether a drive is ready.
Public propertyNameGets the name of a drive, such as C:\.
Public propertyRootDirectoryGets the root directory of a drive.
Public propertyTotalFreeSpaceGets the total amount of free space available on a drive, in bytes.
Public propertyTotalSizeGets the total size of storage space on a drive, in bytes.
Public propertyVolumeLabelGets or sets the volume label of a drive.
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  NameDescription
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodStatic memberGetDrivesRetrieves the drive names of all logical drives on a computer.
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns a drive name as a string. (Overrides Object.ToString.)
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  NameDescription
Explicit interface implemetationPrivate methodISerializable.GetObjectDataPopulates a SerializationInfo object with the data needed to serialize the target object.
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This class models a drive and provides methods and properties to query for drive information. Use DriveInfo to determine what drives are available, and what type of drives they are. You can also query to determine the capacity and available free space on the drive.

The following code example demonstrates the use of the DriveInfo class to display information about all of the drives on the current system.

Imports System
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("  File 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:\ 
'  File type: Removable 
'Drive C:\ 
'  File 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:\ 
'  File 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:\ 
'  File type: CDRom 

'The actual output of this code will vary based on machine and the permissions 
'granted to the user executing it.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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