      private bool saveChange()
        {
            bool saveCh = true;
            DialogResult code;
            code = MessageBox.Show("The Information " + fileName + " has changed,save?", "Save Dialog", MessageBoxButtons.YesNoCancel);
            if (code == DialogResult.Yes) saveCh = save1();
            if (code == DialogResult.Yes) saveCh = false;
            return saveCh;
        }
