Process not terminated when exception occured in thread c#

See more:

.NET

threads

.NET4

process

, +

I have a System.Timers.Timer and I found out that in the ElapsedEventHandler an exception sometimes occured but the process did *not* die but the thread executing the ElapsedEventHandler died quitly where exception occured. Not good since I then wasn't aware about the exception. Why isn't the process terminated? How could I get the process terminated in best way in case an exception occurs in the ElapsedEventHandler?

I tried similar using a System.Threading.Timer and then the process terminated. Can you explain the difference?

/Thanks

Running code dem below:

class Program
{
    static public void DoBad()
    {
        Console.WriteLine("DoBad enter");
        string s = "hello";
        object o = s;
        int i = (int)o; // Ops! Something unexpected happend here... Exception
        Console.WriteLine("DoBad exit");
    }

    static void DoIt1(object sender, System.Timers.ElapsedEventArgs e)
    {
        Console.WriteLine("\nDoIt1 enter");
        DoBad(); // Process is NOT terminated when excpetion occurs in DoBad, thread just dies quietly but process continues. Why is process not terminated?
        Console.WriteLine("DoIt1 exit");
    }

    static void Test1()
    {
        System.Timers.Timer t = new System.Timers.Timer(2000);
        t.Elapsed += new System.Timers.ElapsedEventHandler(DoIt1);
        t.Enabled = true;
    }

    static public void DoIt2(Object o)
    {
        Console.WriteLine("\nDoIt2 enter");
        DoBad(); // Process terminated when exception occurs in DoBad.
        Console.WriteLine("DoIt2 exit");
    }

    static void Test2()
    {
        System.Threading.Timer timer = new System.Threading.Timer(DoIt2, null, 0, 2000);
    }

    static void Main(string[] args)
    {
        Test1(); // Process NOT terminated when exception occurs in DoBad
        // Test2(); // Process terminated when exception occurs in DoBad

        // Why is process NOT terminated when running Test1 (but terminated when running Test2)?
        // Want process to die. How to do it in best way?

        Console.WriteLine("Main Sleep");
        System.Threading.Thread.Sleep(11000);
        Console.WriteLine("Main Slept");
    }
}