public void RemoveMaintain(maintain m)
{
maintains.Remove(m);
DatabaseUtil dbu = new DatabaseUtil();
string sql = "delete from t_maintainForm where id=" + m.getMID();
dbu.Open();
dbu.Excute(sql);
dbu.Close();
}
public void AddMaintain(maintain m)
{
maintains.Add(m);
DatabaseUtil dbu = new DatabaseUtil();
string sql = "insert into t_maintainForm values " + m.getTime() + "," + m.getName() + "," + m.getAddress() + "," + m.getType() + "," + m.getText() + "," + m.getState() + "," + m.getWorker() + "," + m.getFeederivate() + "," + m.getFee() + ")";
dbu.Open();
dbu.Excute(sql);
dbu.Close();
}