以下两种都可以帮定到Repeater1上，但是有什么区别呢？那位高人能详细说明一下。

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方法一

public static DataTable ExecuteTable(string strSQL)
        {
            DataTable dt = new DataTable();
            SqlConnection connection = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand(strSQL, connection);
          
            connection.Open();
            using (SqlDataReader reader =cmd.ExecuteReader(CommandBehavior.CloseConnection))
            {
                dt.Load(reader);
            }   

            return dt;
        }

---------邦定数据-----------

string sql = "SELECT * FROM Role";

            DataTable dt = help.ExecuteTable(sql);
            this.Repeater1.DataSource = dt;
            this.Repeater1.DataBind();

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方法二、
        public IList<user> ExecuteIList(string strSQL)
        {

            IList<user> myTable = new List<user>();
            SqlConnection connection = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand(strSQL, connection);
            connection.Open();
            using (SqlDataReader rdr = SqlHelper.ExecuteReader(CommandBehavior.CloseConnection))
            {
                while (rdr.Read())
                {
                    user cat = new usr(rdr.GetString(0), rdr.GetString(1), rdr.GetString(2));
                    myTable.Add(cat);
                }
            }
            return myTable;
        }

---------邦定数据-----------

           string sql = "SELECT * FROM UDS_Role";

            this.Repeater1.DataSource = help.ExecuteIList(sql);
            this.Repeater1.DataBind();