/// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                if (InventoryUpdate != null)
                {
                    InventoryUpdate.Abort();
                    InventoryUpdate = null;
                }

                if (_EditTimer != null)
                {
                    _EditTimer.Dispose();
                    _EditTimer = null;
                }

                if (TreeUpdateTimer != null)
                {
                    TreeUpdateTimer.Dispose();
                    TreeUpdateTimer = null;
                }

                components.Dispose();
            }
            base.Dispose(disposing);
        }