using System;

using System.IO;

public class Program

    : IDisposable

{

    public static void Main()

    {

        // In a real program, instantiating this without protection is wrong.

        // But this is just a setup so that we can demonstrate mass-disposal

        // below for, e.g., http://stackoverflow.com/q/18254018/429091

        var p = new Program();

        var p1 = new Program();

        var s = new StringWriter();

        var p2 = new Program() {Barf = true};

        // Now we have a bunch of disposable objects, dispose them.

        // Note how p2 throws up but doesn’t prevent p, p1, or s from

        // being disposed properly.

        using (

            IDisposable _p = p,

            _p1 = p1,

            _s = s,

            _p2 = p2)

        // C# compiler complains if I just put ‘;’ here…

        {}

    }

​

    public bool Barf { get; set; }

    public void Dispose()

    {

        if (Barf)

        {

            System.Console.WriteLine(ToString() + ".Dispose(): I’m feeling a little sick :-/.");

            throw new ApplicationException("lunch");

        }

        System.Console.WriteLine(ToString() + ".Dispose()");

    }

}