private void simpleButton1_Click(object sender, EventArgs e)
        {
            List<SempleList> AddLyr = new List<SempleList>();
            AddLyr.Add(new SempleList(0));
            AddLyr.Add(new SempleList(1,false));
        }
        public class SempleList
        {
            int ID;
            bool SameName;
            public SempleList(int ID)
            {
                this.ID = ID;
            }

            public SempleList(int ID, bool SameName)
                : this(ID)
            {
                this.SameName = SameName;
            }
        }

        private void simpleButton1_Click(object sender, EventArgs e)
        {
            List<SempleListBase> AddLyr = new List<SempleList>();
            AddLyr.Add(new SempleList1(0));
            AddLyr.Add(new SempleList2(1,false));
        }
        public class SempleList1 :SempleListBase
        {
            int ID;
            ...
        }
        public class SempleList2 :SempleListBase
        {
            int ID;
            bool SameName;
        }