using System;

using System.Runtime.ExceptionServices;

public class Program

{

    public static void Main()

    {

        Exception exception = null;

        Exception exception2 = null;

        var resource = new Resource();

        try{

            Console.WriteLine("Using");

            throw new Exception("Using failed");

        }catch(Exception e){

            exception = e;

        }finally{

            try{

                if(resource != null) resource.Dispose();

            } catch(Exception e2){

                exception2 = e2;

            }

            if(exception != null && exception2 != null){

                throw new AggregateException(exception, exception2);

            }else if(exception != null){

                ExceptionDispatchInfo.Capture(exception).Throw();

            }else if(exception2 != null){

                ExceptionDispatchInfo.Capture(exception2).Throw();

            }

        }

    }

}

​

public class Resource : IDisposable {

    public void Dispose(){

        Console.WriteLine("Disposing");

        throw new Exception("Disposing failed");

    }

}