Get computer disk space in C #

The Getdrives () method of the DriveInfo class under the System.IO namespace can be used to obtain the names of all logical drives on the computer. The TotalSize property of the DriveInfo class can get the space size of the disk in a semantic. The main code is as follows.

private void Form1_Load (object sender, EventArgs e)
{
    System.io.driveinfo[] Drive=system.io.driveinfo.getdrives ();
    for (int i = 0; i < drive. Length; i++)
    {
        COMBOBOX1.ITEMS.ADD (Drive[i]. Name);
    }
}
private void Combobox1_selectedvaluechanged (object sender, EventArgs e)
{
    system.io.driveinfo[] Drive = System.IO.DriveInfo.GetDrives ();
    for (int i = 0; i < drive. Length; i++)
    {
        if (comboBox1.SelectedItem.ToString () = = Drive[i]. Name)
        {
            TextBox1.Text = Convert.ToString (Drive[i]. totalsize/1024);
        }
    }
}