protected void Button7_Click(object sender, EventArgs e)
{
UserDao userDao = new UserDao();
NameValueCollection name = new NameValueCollection();
name.Add("Age","ASC");
name.Add("Id", "DESC");
Hashtable ht = new Hashtable();
ht.Add("Age>",12);
IList<User> list = userDao.SelectList(ht, name);
Response.Write(list.Count);
}