Csharp/C Sharp by API/System.IO/Path

Path.GetFullPath(String fileName)

 
using System;
using System.IO;
class MainClass {
    static void Main() {
        Console.WriteLine("Using: " + Directory.GetCurrentDirectory());
        Console.WriteLine("The relative path "file.txt" " + "will automatically become: "" + Path.GetFullPath("file.txt") + """);
    }
}

Path.GetRandomFileName()

  

using System;
using System.IO;
class MainClass
{
    public static void Main() 
    {
        Console.WriteLine( Path.GetRandomFileName() );
    }
}

Path.GetTempFileName()

  
using System;
using System.IO;
class MainClass {
    static void Main() {
        string tempFile = Path.GetTempFileName();
        Console.WriteLine("Using " + tempFile);
        using (FileStream fs = new FileStream(tempFile, FileMode.Open)) {
            // (Write some data.)
        }
        // Now delete the file.
        File.Delete(tempFile);
    }
}