上面我们定义了公用表表达式Results_CTE，它获取T_Paginate表中的数据并且根据ID值由小到大排序，然后根据该顺序分配ROW_NUMBER值，其中@Start和@Offset是要查询的数据范围。
接下来，让我们实现方法GetListMessages()，具体实现如下：
/// <summary>
/// Get the user message.
/// </summary>
/// <param name="groupNumber">the pagination number</param>
/// <returns>the pagination data</returns>
[WebMethod][ScriptMethod(ResponseFormat = ResponseFormat.Json)]public string GetListMessages(int groupNumber)
{
string query = string.Format("WITH Results_CTE AS (SELECT ID, Name, Message, ROW_NUMBER() OVER (ORDER BY ID) AS RowNum " +
"FROM T_Paginate WITH(NOLOCK)) " +
"SELECT * FROM Results_CTE WHERE RowNum BETWEEN '{0}' AND '{1}';",
(groupNumber - 1) * Offset + 1, Offset * groupNumber);
var messages = new List<Message>();
using (var con = new SqlConnection(ConfigurationManager.ConnectionStrings["RadditConn"].ToString()))
using (var com = new SqlCommand(query, con))
{
con.Open();
using (var reader = com.ExecuteReader(CommandBehavior.CloseConnection))
{
while (reader.Read())
{
var message = new Message
{
Id = (int)reader["ID"],
Name = (string)reader["Name"],
Comment = (string)reader["Message"] };
messages.Add(message);
}
} // Returns json data.
return new JavaScriptSerializer().Serialize(messages);
}
}
上面，我们定义了GetListMessages()方法，为了简单起见，我们把数据库的操作直接写在Web Service上了请大家见谅，它通过调用公用表表达式Results_CTE来获取分页数据，最后，我们创建一个JavaScriptSerializer对象序列化数据成JSON格式返回给客户端。
Javascript
由于，我们调用的是本地Web Service API，所以，我们发送同源请求调用API接口（跨源请求例子），具体实现如下：
$.getData = function(options) { var opts = $.extend(true, {}, $.fn.loadMore.defaults, options);
$.ajax({
url: opts.url,
type: "POST",
contentType: "application/json; charset=utf-8",
dataType: "json",
data: "{groupNumber:" + opts.groupNumber + "}",
success: function(data, textStatus, xhr) {
if (data.d) {
// We need to convert JSON string to object, then
// iterate thru the JSON object array.
$.each($.parseJSON(data.d), function() {
$("#result").append('<li id="">' +
this.Id + ' - ' + '<strong>' +
this.Name + '</strong>' + ' —?' + '<span class="page_message">' +
