/// <summary>
        /// Apply a filter to show only items matching the filter
        /// </summary>
        /// <param name="Filter">Filter value</param>
        public void FilterItems(string Filter)
        {
            Items.Clear();

            foreach (string Chan in Channels)
            {
                if (Chan.ToUpper().Contains(Filter.ToUpper()) || Filter.Equals(""))
                {
                    Items.Add(Chan, 0);
                }
            }
        }