BLOG.CSHARPHELPER.COM: Get information about a disk drive such as size and available space in C#

Get information about a disk drive such as size and available space in C#

This example returns information about disk drives including:

Name
Total size
Total free size
Available free space
Format
Type (fixed or CD ROM
Is ready?
Root directory
Volume label

The program uses objects in the System.IO namespace so it includes the following statement to make using that namespace easier.

using System.IO;

When the program starts, it uses the following code to add the drives available on the system to the ComboBox cboDrive.

// Make a list of drives. private void Form1_Load(object sender, EventArgs e) { foreach (DriveInfo di in DriveInfo.GetDrives()) { cboDrive.Items.Add(di.Name); cboDrive.SelectedIndex = 0; } }

When you select a drive, the following code displays information about it.

// Display information about the selected drive. private void cboDrive_SelectedIndexChanged(object sender, EventArgs e) { string drive_letter = cboDrive.Text.Substring(0, 1); DriveInfo di = new DriveInfo(drive_letter); lblIsReady.Text = di.IsReady.ToString(); lblDriveType.Text = di.DriveType.ToString(); lblName.Text = di.Name; lblRootDirectory.Text = di.RootDirectory.Name; if (di.IsReady) { lblDriveFormat.Text = di.DriveFormat; lblAvailableFreeSpace.Text = di.AvailableFreeSpace.ToString(); lblTotalFreeSize.Text = di.TotalFreeSpace.ToString(); lblTotalSize.Text = di.TotalSize.ToString(); lblVolumeLabel.Text = di.VolumeLabel; } else { lblDriveFormat.Text = ""; lblAvailableFreeSpace.Text = ""; lblTotalFreeSize.Text = ""; lblTotalSize.Text = ""; lblVolumeLabel.Text = ""; } }

The program makes a DriveInfo object representing the selected drive and uses that object's properties to learn about the drive.