Get driveinfo using fileinfo in c#

using System;
using System.IO;
 
 
class MainClass {
    static void Main(string[] args) {
        FileInfo file = new FileInfo("c:\\a.txt");
 
 
        // Display drive information.
        DriveInfo drv = new DriveInfo(file.FullName);
 
 
        Console.Write("Drive: ");
        Console.WriteLine(drv.Name);
 
 
    }
}