<label id=”pageInfo”></label>
<a href=”#” onclick=”Pre()”>上一页</a>
<a href=”#” onclick=”Next()”>下一页</a>
</div>
<input type=”hidden” value=”0″ id=”pageIndex” />
</form>
</body>
</html>
三、.ashx页
public class Handler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = “text/plain”;
StringBuilder tb = new StringBuilder();
DataBase db = new DataBase();
int pageSize = 10;
int pageIndex = 0;
string type = context.Request.Params[“type”];
switch (type)
{
case “first”:
DataTable dt1 = db.GetDataSet(“select top 10 * from test”, null).Tables[0];
tb.Append(Common.DataTableToJSON(dt1, true)); //DataTable转为JSON
break;
case “next”:
pageIndex = Convert.ToInt32(context.Request.Params[“index”]);
DataTable dt2 = db.GetDataSet(“select top ” + pageSize.ToString() + ” * from test where id> (select max(id) from (select top ” + (pageSize * pageIndex).ToString() + ” id from test) t)”, null).Tables[0];
tb.Append(Common.DataTableToJSON(dt2, true));
break;
case “pre”:
pageIndex = Convert.ToInt32(context.Request.Params[“index”]);
DataTable dt3 = db.GetDataSet(“select top ” + pageSize.ToString() + ” * from test where id> (select max(id) from (select top ” + (pageSize * pageIndex).ToString() + ” id from test) t)”, null).Tables[0];
tb.Append(JSONHelper.DataTableToJSON(dt));
break;
}
context.Response.Write(tb.ToString());
}
public bool IsReusable
{
get
{
return false;
}
}
}
四、效果
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备注 (2010-7-10)：
用sql2005 row_number()分页方法，.ashx页面代码可简化为
public class Handler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = “text/plain”;
DataBase db = new DataBase();
int pageSize = 10;
int pageIndex = 0;
int.TryParse(context.Request.Params[“index”], out pageIndex);
string type = context.Request.Params[“type”];
string sql = string.Format(“select * from ( select row_number() over (order by id) as rowNum,* from test) as t ”
