/// <summary>
        /// If the zero-based column and row are in range, sets the value of that
        /// cell and returns true.  Otherwise, returns false.
        /// </summary>
        /// <param name="col"></param>
        /// <param name="row"></param>
        /// <param name="value"></param>
        /// <returns></returns>

        public bool SetValue(int col, int row, string value)
        {
            return(drawingPanel.SetValue(col, row, value));
        }