using System;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        try{

            using(var resource = new Resource()){

                Console.WriteLine("Using");

                throw new Exception("Using failed");

            }

        }catch(Exception e){

            Console.WriteLine("Exception: " + e);

        }

    }

}

​

public class Resource : IDisposable {

    public void Dispose(){

        Console.WriteLine("Disposing");

        throw new Exception("Disposing failed");

    }

}