Scrolling Credits Control

using System;
using System.Collections.Generic;

namespace ScrollingBox
{
    public class ScrollingBoxCollection : System.Collections.CollectionBase
    {
        public event EventHandler OnCollectionChanged;
        public ScrollingBoxCollection()
        {
        }
        public int Add(ScrollingBoxItem value)
        {
            int index = base.InnerList.Add(value);
            if (OnCollectionChanged != null)
            {
                OnCollectionChanged(this, new EventArgs());
            }
            return index;
        }
        public int Add(string Text)
        {
            return this.Add(new ScrollingBoxText(Text));
        }
        public void InsertAt(int index, ScrollingBoxItem value)
        {
            base.InnerList.Insert(index, value);
            if (OnCollectionChanged != null)
            {
                OnCollectionChanged(this, new EventArgs());
            }
        }
        public void Remove(ScrollingBoxItem value)
        {
            base.InnerList.Remove(value);
            if (OnCollectionChanged != null)
            {
                OnCollectionChanged(this, new EventArgs());
            }
        }
        public ScrollingBoxItem this[int index]
        {
            get
            {
                return (ScrollingBoxItem)base.InnerList[index];
            }
            set
            {
                base.InnerList[index] = value;
            }
        }
    }
}