public Colchar_class Deep_copy()
        {
            Colchar_class copy           = (Colchar_class)this.MemberwiseClone();
            int           columns_length = Columns.Length;

            copy.Columns = Deep_copy_columns();
            return(copy);
        }
 public Data_class()
 {
     ColChar = new Colchar_class();
     Data    = new Data_line_class[0];
 }