using System;

using System.Collections.Generic;

using System.Text;



namespace System.Collections

{

   // [Serializable, ComVisible(true)]

    public abstract class ReadOnlyCollectionBase : ICollection, IEnumerable

    {

        // Fields

        private ArrayList list;



        // Methods

       protected ReadOnlyCollectionBase()

        {

        }



        public virtual IEnumerator GetEnumerator()

        {

            return this.InnerList.GetEnumerator();

        }



        void ICollection.CopyTo(Array array, int index)

        {

            this.InnerList.CopyTo(array, index);

        }



        // Properties

        public virtual int Count

        {

            get

            {

                return this.InnerList.Count;

            }

        }



        protected ArrayList InnerList

        {

            get

            {

                if (this.list == null)

                {

                    this.list = new ArrayList();

                }

                return this.list;

            }

        }



        bool ICollection.IsSynchronized

        {

            get

            {

                return this.InnerList.IsSynchronized;

            }

        }



        object ICollection.SyncRoot

        {

            get

            {

                return this.InnerList.SyncRoot;

            }

        }

    }





}