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Is it possible to execute some code specific to my list instance when an item is removed from it? I want to re-number ID #s (a field in my list) every time an item is removed.

EDIT:

I think I've found what I am looking for. In my own words... I am now deriving a class from a Generic List. This seems to let me extend the add and remove methods to perform the specific house keeping to the data that I require. 

class DeviceDataTable<T> : IEnumerable<T>
    {
        private  List<T> table = new List<T>();

        public void AddRow(T r)
        {
            table.Add(r);

            //Add ID management
        }

        public void RemoveRow(Int32 i)
        {
            table.RemoveAt(i);

            //Add ID management 
        }

        IEnumerator<T> IEnumerable<T>.GetEnumerator()
        {
            return table.GetEnumerator();
        }


        IEnumerator IEnumerable.GetEnumerator()
        {
            return table.GetEnumerator();
        }
        
    }


I am getting errors on the implementation of the second interface (IEnumerator IEnumerable.GetEnumerator();). It states "Using the generic type 'Systems.Collections.Generic.IEnumerator<T>' requires '1' type arguments. Any thoughts on why?