webform：分页组合查询

一个简单的分页组合查询页面

  /// <summary>
    /// 查询方法
    /// </summary>
    /// <param name="tsql">SQL语句</param>
    /// <param name="hh">哈希表</param>
    /// <returns></returns>
    public List<Goods> Select(string uname, string sql, Hashtable hs)
    {
        List<Goods> glist = new List<Goods>();
        cmd.CommandText = sql;
        cmd.Parameters.Clear();
        foreach (string aa in hs.Keys)
        {
            cmd.Parameters.AddWithValue(aa, hs[aa]);
        }
        conn.Open();
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.HasRows)
        {
            while (dr.Read())
            {
                Goods g = new Goods();
                g.Ids = Convert.ToInt32(dr["Ids"]);
                g.Sname = dr["Sname"].ToString();
                g.Number = dr["Number"].ToString();
                g.Date = Convert.ToDateTime(dr["Date"]);
                g.Shelf = Convert.ToInt32(dr["Shelf"]);
                g.Contacts = dr["Contacts"].ToString();
                g.Tel = dr["Tel"].ToString();
                g.UserName = uname;
                glist.Add(g);
            }
        }
        conn.Close();
        return glist;
    }

    /// <summary>
    /// 查询方法（页数）
    /// </summary>
    /// <param name="tsql"></param>
    /// <param name="hh"></param>
    /// <returns></returns>
    public List<Goods> Select(string uname, int count, int page, string sql, Hashtable hs)
    {
        List<Goods> glist = new List<Goods>();
        string sql1 = sql.Replace("*", "top " + count + " * ");
        string sql2 = sql.Replace("*", "top " + (page - 1) * count + " Ids ");
        cmd.CommandText = sql1 + " and Ids not in(" + sql2 + ")";
        cmd.Parameters.Clear();
        foreach (string aa in hs.Keys)
        {
            cmd.Parameters.AddWithValue(aa, hs[aa]);
        }
        conn.Open();
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.HasRows)
        {
            while (dr.Read())
            {
                Goods g = new Goods();
                g.Ids = Convert.ToInt32(dr["Ids"]);
                g.Sname = dr["Sname"].ToString();
                g.Number = dr["Number"].ToString();
                g.Date = Convert.ToDateTime(dr["Date"]);
                g.Shelf = Convert.ToInt32(dr["Shelf"]);
                g.Contacts = dr["Contacts"].ToString();
                g.Tel = dr["Tel"].ToString();
                g.UserName = uname;
                glist.Add(g);
            }
        }
        conn.Close();
        return glist;

    }

数据访问类