foreach(var item in collection)
{
    DoWork().Wait;
}

public async Task DoWork()
{
    Try
    {
        Parallel.Invoke(
               () => Foo(),
               () => Foo2(),
               () => Foo3());
    }
    catch(Exception e)
    {
       //No exception caught
    }
}

public void Foo()
{
    Console.WriteLine("foo 1");
}