C# 4 and .NET 4

eading Drive information ❘ 801
using System;
using System.IO;
using System.Windows.Forms;
namespace DriveViewer
{
public partial class Form1: Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
DriveInfo[] di = DriveInfo.GetDrives();
}
foreach (DriveInfo itemDrive in di)
{
listBox1.Items.Add(itemDrive.Name);
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
DriveInfo di = new DriveInfo(listBox1.SelectedItem.ToString());
}
}
}
MessageBox.Show("Available Free Space: "
+ di.AvailableFreeSpace + "\n" +
"Drive Format: " + di.DriveFormat + "\n" +
"Drive Type: " + di.DriveType + "\n" +
"Is Ready: " + di.IsReady + "\n" +
"Name: " + di.Name + "\n" +
"Root Directory: " + di.RootDirectory + "\n" +
"ToString() Value: " + di + "\n" +
"Total Free Space: " + di.TotalFreeSpace + "\n" +
"Total Size: " + di.TotalSize + "\n" +
"Volume Label: " + di.VolumeLabel, di.Name +
" DRIVE INFO");
code download DriveViewer.sln
The first step is to bring in the System.IO namespace with the using
keyword. Within the Form1_Load event, you use the DriveInfo class
to get a list of all the available drives on the system. This is done using
an array of DriveInfo objects and populating this array with the
DriveInfo.GetDrives() method. Then using a foreach loop, you are
able to iterate through each drive found and populate the list box with
the results. This produces something similar to what is shown in
Figure 29-14.
This form allows the end user to select one of the drives in the list.
After a drive is selected, a message box appears that contains details
about that drive. As you can see in Figure 29-14, I have six drives on
my current computer. Selecting a couple of these drives produces the
message boxes collectively shown in Figure 29-15.
figure 29-14
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