名校导航AspNetPager存储过程分页总结

1，DAL中SQLHelper.cs调用的DataSet

       /// <summary>
        /// return a dataset
        /// </summary>
        /// <param name="connectionString">一个有效的数据库连接字符串</param>
        /// <param name="cmdType">SqlCommand命令类型 (存储过程， T-SQL语句， 等等。)</param>
        /// <param name="cmdText">存储过程的名字或者 T-SQL 语句</param>
        /// <param name="commandParameters">以数组形式提供SqlCommand命令中用到的参数列表</param>
        /// <returns>return a dataset</returns>
        public static DataSet ExecuteDataSet(string connectionString, CommandType cmdType, string cmdText, params SqlParameter[] commandParameters)
        {
            SqlConnection conn = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand();
            try
            {
                PrepareCommand(cmd, conn, null, cmdType, cmdText, commandParameters);
                SqlDataAdapter da = new SqlDataAdapter();
                DataSet ds = new DataSet();
                da.SelectCommand = cmd;
                da.Fill(ds);
                return ds;
            }
            catch
            {
                conn.Close();
                throw;
            }
        }

2用到了两个存储过程

    --(1)FamousSchool_Select_Image

------------------------------------

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
create proc [dbo].[FamousSchool_Select_Image]
@pageIndex int,
@pageSize int
AS
declare @indexTable table (id int identity(1,1), nid int)
declare @pageLowerBound int
declare @pageUpperBound int
set @PageLowerBound=(@pageIndex-1)*@pageSize
set @PageUpperBound=@PageLowerBound+@pageSize
set rowcount @PageUpperBound
insert into @indextable(nid) select Id from FaShoollNateNews
select * from FaShoollNateNews f,@indextable t where f.Id=t.nid and t.id>@PageLowerBound and t.id<=@PageUpperBound and f.ShoolImage is not null order by  OrderLevel asc

 

 

------------------------------------

    --(2)FamousSchool_Select_ImageCount

------------------------------------

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
create proc [dbo].[FamousSchool_Select_ImageCount]
AS
begin
select count(*) from FaShoollNateNews where ShoolImage is not null
end

 

------------------------------------

3,DAL中方法

       /// <summary>
       /// ProfessGetAll查询所有学校图片信息-名校导航-分页
       /// </summary>
       /// <param name="pageIndex">当前页索引</param>
       /// <param name="pageSize">当前页显示的行目数</param>
       /// <returns></returns>
       public DataSet FaShoolNateImage(int pageIndex, int pageSize)
       {
           SqlParameter[] paras=new SqlParameter[2];
           paras[0] = new SqlParameter("@pageIndex",pageIndex);
           paras[1] = new SqlParameter("@pageSize",pageSize);
           return SqlHelper.ExecuteDataSet(SqlHelper.ConnectionString, CommandType.StoredProcedure, "FamousSchool_Select_Image", paras);
       }
       /// <summary>
       /// 得到查询的所有记录数值-分页
       /// </summary>
       /// <returns></returns>
       public object FaShoolNateImageCount()
       {
           return SqlHelper.ExecuteScalar(SqlHelper.ConnectionString, CommandType.StoredProcedure, "FamousSchool_Select_ImageCount", null);
       }

4，WebUI层绑定代码

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using UserInfo.BLL;
using UserInfo.DAL;
using UserInfo.Model;
using System.Data.SqlClient;
namespace FrameWork.web.HightShool
{
    public partial class FaShNavgateIndex : System.Web.UI.Page
    {
        HightShoolNewsBll bll = new HightShoolNewsBll();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                AspNetPager1.RecordCount = int.Parse(bll.HightSchoolImageCount().ToString());
                DataList1.DataSource = bll.HightSchoolImage(AspNetPager1.CurrentPageIndex, AspNetPager1.PageSize);
                DataList1.DataBind();
            }
        }

        protected void AspNetPager1_PageChanged(object sender, EventArgs e)
        {
            AspNetPager1.RecordCount = int.Parse(bll.HightSchoolImageCount().ToString());
            DataList1.DataSource = bll.HightSchoolImage(AspNetPager1.CurrentPageIndex, AspNetPager1.PageSize);
            DataList1.DataBind();
        }

    }
}
5，AspNetPager样式

            <webdiyer:AspNetPager ID="AspNetPager1" runat="server"
                onpagechanged="AspNetPager1_PageChanged" PageSize="8"
                AlwaysShowFirstLastPageNumber="True" FirstPageText="首页" LastPageText="最后一页"
                NextPageText="下一页" PageIndexBoxType="DropDownList" PrevPageText="上一页"
                AlwaysShow="True" ShowPageIndexBox="Always" TextAfterPageIndexBox="页"
                TextBeforePageIndexBox="转到"
                CustomInfoHTML="共%PageCount%页，当前为第%CurrentPageIndex%页，每页%PageSize%条"
                ShowCustomInfoSection="Right">
            </webdiyer:AspNetPager>