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aspnetpager实现高效分页

2010-11-08 22:13 183 查看

今天晚上手痒，写了一下代码。使用aspnetpager这个免费的分页控件。

aspx页面部分代码如下：

Code:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="LearningAspNet.无刷新分页.WebForm1" %>



<%@ Register assembly="AspNetPager" namespace="Wuqi.Webdiyer" tagprefix="webdiyer" %>



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>AspNetPager+存储过程完成分页</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

     <asp:Repeater ID="Repeater1" runat="server" onitemcommand="Repeater1_ItemCommand"

            onitemdatabound="Repeater1_ItemDataBound" >

        <HeaderTemplate>

        <table><tr>

        <td>学生编号</td>

        <td>学生姓名</td>

        <td>学生性别</td>

        <td align="center">操  作</td>

        </tr>

        </HeaderTemplate>

        <ItemTemplate>

        <tr>

        <td><%#Eval("sid") %></td>

        <td><%#Eval("sname") %></td>

        <td><%#Eval("ssex") %></td>

        <td><asp:Button ID="Button1" runat="server" Text="Button" CommandName="btn"  CommandArgument='<%#Eval("sid") %>' />

        </td></tr>

        </ItemTemplate>

          <AlternatingItemTemplate >

         <tr style="background-color:Aqua">

        <td><%#Eval("sid") %></td>

        <td><%#Eval("sname") %></td>

        <td><%#Eval("ssex") %></td>

        <td>

        <asp:Button ID="Button1" runat="server" Text="Button" CommandName="btn"  CommandArgument='<%#Eval("sid") %>'/>

        </td>

        </tr>

        </AlternatingItemTemplate>

        <FooterTemplate>

        </table>

        </FooterTemplate>

        </asp:Repeater>

        <asp:Label ID="Label1" runat="server" Text=""></asp:Label>

    </div>



     <webdiyer:AspNetPager ID="AspNetPager1" runat="server" OnPageChanged="AspNetPager1_PageChanged">

    </webdiyer:AspNetPager>



    </form>

</body>

</html>

cs后台部分代码：

Code:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Data.SqlClient;

using System.Configuration;



namespace LearningAspNet.无刷新分页

{

    public partial class WebForm1 : System.Web.UI.Page

    {

        string connStr = ConfigurationManager.ConnectionStrings["studentConnectionString"].ToString();

        protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                bind();

            }

        }

        /// <summary>

        /// 绑定数据

        /// </summary>

        private void bind()

        {

            this.AspNetPager1.RecordCount = getRecordCount();//总记录数

            int curPage = this.AspNetPager1.CurrentPageIndex;//当前页的索引

            int count = this.AspNetPager1.PageSize=3;//每页显示条数

            Repeater1.DataSource = getData(curPage, count, "stuinfo", "sid");

            Repeater1.DataBind();

        }

        /// <summary>

        /// 获取数据源

        /// </summary>

        /// <param name="curPage">当前页</param>

        /// <param name="count">每页显示的条数</param>

        /// <param name="tblName">表名</param>

        /// <param name="colum">主键（标识）</param>

        /// <returns></returns>

        private DataSet getData(int curPage,int count,string tblName,string colum) {







            SqlConnection conn = new SqlConnection(connStr);

            try

            {



                conn.Open();

                    DataSet ds = new DataSet();

                    SqlCommand cmd = new SqlCommand();

                    SqlDataAdapter da = new SqlDataAdapter(cmd);

                    cmd.Connection = conn;

                    cmd.CommandType = CommandType.StoredProcedure;

                    cmd.CommandText = "page";

                    //给存储过程添加参数

                    cmd.Parameters.Add(new SqlParameter("@currentPage", SqlDbType.Int));

                    cmd.Parameters.Add(new SqlParameter("@count", SqlDbType.Int));

                    cmd.Parameters.Add(new SqlParameter("@tableName", SqlDbType.VarChar));

                    cmd.Parameters.Add(new SqlParameter("@column", SqlDbType.VarChar));

                    //给参数赋值

                    da.SelectCommand.Parameters["@currentPage"].Value = curPage;

                    da.SelectCommand.Parameters["@count"].Value = count;

                    da.SelectCommand.Parameters["@tableName"].Value = tblName;

                    da.SelectCommand.Parameters["@column"].Value = colum;



                    // da.SelectCommand = cmd;

                    da.Fill(ds);



                    return ds;







            }

            catch (Exception)

            {



                throw;

            }

            finally {

                conn.Close();

            }

        }

        /// <summary>

        /// 查询总记录数

        /// </summary>

        /// <returns></returns>

        private int getRecordCount()

        {

            int i = 0;

            SqlConnection conn = new SqlConnection(connStr);

            conn.Open();

            string sql = "select count(*) from stuinfo";//查询处总记录数

            SqlDataAdapter da = new SqlDataAdapter(sql,conn);

            object obj = da.SelectCommand.ExecuteScalar();//查询结果的第一行第一列  --总记录条数

            i = int.Parse(obj.ToString());//总记录条数

            conn.Close();

            return i;



        }

        /// <summary>

        /// 翻页事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        protected void AspNetPager1_PageChanged(object sender, EventArgs e)

        {

            bind();

        }

        /// <summary>

        /// DataList控件中点击任意一列的按钮会发生

        /// </summary>

        /// <param name="source"></param>

        /// <param name="e"></param>

        protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)

        {

            if (e.CommandName=="btn")

            {

                Label1.Text ="我的学号是"+ e.CommandArgument.ToString();

                Label1.Style["color"] = "red";

            }

        }

        /// <summary>

        /// 每一项绑定的时候

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)

        {

            if (e.Item.ItemType==ListItemType.Item)

            {

                Button btn = (Button)e.Item.FindControl("Button1");//找到按钮

                btn.Text = "汇报";

            }else if(e.Item.ItemType==ListItemType.AlternatingItem)

            {

                Button btn = (Button)e.Item.FindControl("Button1");

                btn.Text = "汇报";

            }

        }

    }

}

数据库部分，分页存储过程：

Code:

--存储过程实现灵活的分页

if object_id('page','p') is not null

drop proc page

go

create proc  page

@currentPage int=1,--要查询第几页

@count int=10,--每页显示几条

@tableName varchar(20),--表名

@column varchar(20)--列名

as

declare @sql nvarchar(1000)

set @sql = N'select top '+ cast(@count as nvarchar(3))

set @sql=@sql+N' * from '+@tableName+' where '+@column+' not in('

set @sql=@sql+N'select top '+cast(((@currentPage-1)*@count) as nvarchar(3))

set @sql=@sql+@column+N' from '+@tableName+')'



exec(@sql)

go

exec page 1,2,'stuinfo','sid' --测试存储过程

由于时间有限，代码写的很仓促，很凌乱。大家请勿笑话！

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标签： button sql webform 存储 exception asp

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