.NET Framework Class Library
DriveInfo..::.IsReady Property

Gets a value indicating whether a drive is ready.

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

Visual Basic (Declaration)
Public ReadOnly Property IsReady As Boolean
Visual Basic (Usage)
Dim instance As DriveInfo
Dim value As Boolean

value = instance.IsReady
C#
public bool IsReady { get; }
Visual C++
public:
property bool IsReady {
    bool get ();
}
JScript
public function get IsReady () : boolean

Property Value

Type: System..::.Boolean
true if the drive is ready; false if the drive is not ready.
Remarks

IsReady indicates whether a drive is ready. For example, it indicates that a CD is in a CD drive or that a removable storage device is ready for read/write operations. If you do not test whether a drive is ready, and it is not ready, querying the drive using DriveInfo will raise an IOException.

Examples

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

Visual Basic
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.
C#
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("  File 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:\
  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.
*/
Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0
See Also

Reference

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