System IO C# by API

using System;
using System.IO;
public class WildcardTest {
    private static void Main(string[] args) {
        DirectoryInfo dir = new DirectoryInfo("c:\\");
        FileInfo[] files = dir.GetFiles("*");
            
        foreach (FileInfo file in files) {
            Console.Write("Name: " + file.Name + "  ");
            Console.WriteLine("Size: " + file.Length.ToString());
        }
    }
}