C# 3.0 Cookbook, 3rd Edition

12.14. Querying Information for All Drives on a System

Problem

Your application needs to know if a drive (HDD, CD drive, DVD drive, etc.) is available and ready to be written to and/or read from. Additionally, it would be nice to know if you have enough available free space on the drive to write information to.

Solution

Use the various properties in the DriveInfo class as shown here:

	    public static void DisplayAllDriveInfo()
	    {
	        foreach (DriveInfo drive in DriveInfo.GetDrives())
	        {
	            if (drive.IsReady)
	            {
	                Console.WriteLine("Drive " + drive.Name + " is ready.");
	                Console.WriteLine("AvailableFreeSpace: " + drive.AvailableFreeSpace);
	                Console.WriteLine("DriveFormat: " + drive.DriveFormat);
	                Console.WriteLine("DriveType: " + drive.DriveType);
	                Console.WriteLine("Name: " + drive.Name);
	                Console.WriteLine("RootDirectory.FullName: " +
	                    drive.RootDirectory.FullName);
	                Console.WriteLine("TotalFreeSpace: " + drive.TotalFreeSpace);
	                Console.WriteLine("TotalSize: " + drive.TotalSize);
	                Console.WriteLine("VolumeLabel: " + drive.VolumeLabel);
	        }
	        else
	        {
	                Console.WriteLine("Drive " + drive.Name + " is not ready.");
	        }
	    }
	}

This code will display something like the following, though of course each system is different and the results will vary:

	Drive C:\ is ready.
	AvailableFreeSpace: 143210795008 DriveFormat: NTFS DriveType: Fixed Name: C:\ RootDirectory.FullName: C:\ TotalFreeSpace: 143210795008 TotalSize: 159989886976 VolumeLabel: Vol1 Drive D:\ is ready. AvailableFreeSpace: 0 DriveFormat: UDF DriveType: CDRom Name: D:\ ...