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;
}
