DriveInfo.DriveFormat Property

Definition

Namespace:

System.IO

Assemblies:

netstandard.dll, System.IO.FileSystem.DriveInfo.dll

Source:

DriveInfo.Unix.cs

Gets the name of the file system, such as NTFS or FAT32.

C#

public string DriveFormat { get; }

Property Value

String

The name of the file system on the specified drive.

Exceptions

UnauthorizedAccessException

Access to the drive information is denied.

DriveNotFoundException

The drive does not exist or is not mapped.

IOException

An I/O error occurred (for example, a disk error or a drive was not ready).

Examples

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

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("  Drive type: {0}", d.DriveType);
            if (d.IsReady)
            {
                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.
*/

Remarks

Use DriveFormat to determine what formatting a drive uses.

Applies to