using System;
using System.Collections.Generic;
using System.Text;

namespace De.Lambertz.Essentials
{
    public class LamList<T> : List<T>
    {
        public bool AddIfNew(T item)
        {
            bool result;

            if (this.Contains(item))
            {
                result = false;
            }
            else
            {
                result = true;
                this.Add(item);
            }

            return result;
        }
    }
}