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一个简单的存储过程数据分页

王朝asp·作者佚名 2006-01-10

1。数据库结构为：(在SQL当中建立一个数据库后，直接在SQL结构查询器当中执行以下SQL脚本)

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Mobile]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)

drop table [dbo].[Mobile]

CREATE TABLE [dbo].[Mobile] (

[MobileID] [int] IDENTITY (1, 1) NOT NULL ,

[MobileType] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL

) ON [PRIMARY]

2。存储过程，（可以直接在数据库中新建存储过程，然后复制到数据库）

存储过程分页

CREATE PROCEDURE Proc_Paging

(

@TBName NVARCHAR(255) ,

@SQL nVARCHAR(4000), --不带排序语句的SQL语句

@Page int, --页码

@RecsPerPage int, --每页容纳的记录数

@ID VARCHAR(255), --需要排序的不重复的ID号

@Sort VARCHAR(255) , --排序字段及规则

@PageCount INT OUTPUT --总页数

)

BEGIN

DECLARE @sql1 nvarchar(4000)

SET @sql1=N'SELECT @PageCount=COUNT(*)'

+N' FROM '+@tbname

EXEC sp_executesql @sql1,N'@PageCount int OUTPUT',@PageCount OUTPUT

SET @PageCount=(@PageCount+@RecsPerPage-1)/@RecsPerPage

END

BEGIN

DECLARE @Str nVARCHAR(4000)

SET @Str='SELECT TOP '+CAST(@RecsPerPage AS VARCHAR(20))+' * FROM ('+@SQL+') T WHERE T.'+@ID+' NOT IN (SELECT TOP '+CAST((@RecsPerPage*(@Page-1)) AS VARCHAR(20))+' '+@ID+' FROM ('+@SQL+') T9 ORDER BY '+@Sort+') ORDER BY '+@Sort

--PRINT @Str

--EXEC sp_ExecuteSql @Str

--EXEC @Str

DECLARE @Str1 NVARCHAR(400)

DECLARE @Str2 NVARCHAR(400)

SET @Str1 = CAST(@RecsPerPage AS VARCHAR(20))

SET @Str2 = CAST((@RecsPerPage*(@Page-1)) AS VARCHAR(20))

EXEC ( N'SELECT TOP '+@Str1+ N' * FROM ('+@SQL+N') T WHERE T.'+@ID+N' NOT IN (SELECT TOP '+@Str2+N' '+@ID+N' FROM ('+@SQL+N') T9 ORDER BY '+@Sort+N') ORDER BY '+@Sort )

END

3。程序代码：（index.aspx.cs文件）

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

namespace Joyes.Test

{

/// <summary>

//--------------------------------------------------

//--功能模块:存储过程分页

//--说明:很简单

//--编写人:黄治强

//--编写时间:2005.9.5

//---------------------------------------------------

/// </summary>

public class index : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid dg;

protected System.Web.UI.WebControls.Label lblPaging;

private void Page_Load(object sender, System.EventArgs e)

{

// 在此处放置用户代码以初始化页面

if( !Page.IsPostBack )

{

if(Request.QueryString["page"] == null)

{

//第一次开启页面时默认传递的页码参数为1

DataBindDg2(1);

}

else

{

DataBindDg2(int.Parse(Request.QueryString["page"].ToString()));

}

/// <summary>

/// 利用存储过程取出数据并邦定到DataGrid

/// </summary>

/// <param name="intPage">需要传递的翻页页码的GET参数(int)</param>

private void DataBindDg2(int intPage)

{

string str1 = " select * from Mobile ";//不带排序语句的SQL语句

int intRecsPerPage = 10;//每页容纳的记录数

string strID = " MobileID ";//需要排序的不重复的ID号

string strSort = " MobileID ";//排序字段及规则

string strTBName = "Mobile";//数据库当中的要提取数据的表

SqlConnection con = new SqlConnection("uid=sa;pwd=123456;database=Test;");

SqlCommand cmd = new SqlCommand("Proc_Paging",con);

cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add(new SqlParameter("@SQL",SqlDbType.NVarChar,4000));

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

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

cmd.Parameters.Add(new SqlParameter("@ID",SqlDbType.NVarChar,255));

cmd.Parameters.Add(new SqlParameter("@Sort",SqlDbType.NVarChar,255));

cmd.Parameters.Add(new SqlParameter("@TBName",SqlDbType.NVarChar,255));

SqlParameter parameterPageCount = new SqlParameter("@PageCount",SqlDbType.Int);

parameterPageCount.Direction = ParameterDirection.Output;

cmd.Parameters.Add(parameterPageCount);

cmd.Parameters["@SQL"].Value = str1;

cmd.Parameters["@Page"].Value = intPage;

cmd.Parameters["@RecsPerPage"].Value = intRecsPerPage;

cmd.Parameters["@ID"].Value = strID;

cmd.Parameters["@Sort"].Value = strSort;

cmd.Parameters["@TBName"].Value = strTBName;

try

{

using(SqlDataAdapter ad = new SqlDataAdapter(cmd))

{

DataSet ds = new DataSet();

ad.Fill(ds);

dg.DataSource = ds.Tables[0].DefaultView;

dg.DataBind();

}

catch(Exception Error)

{

string strError = Error.ToString();

}

finally

{

if( con != null || con.State == ConnectionState.Open )

{

con.Close();

}

lblPaging.Text = GetlblPagingBind(Request.QueryString["Page"],parameterPageCount.Value.ToString());

}

/// <summary>

/// 返回分页工具栏HTML编码

/// </summary>

/// <param name="strParameter">需要传递的翻页页码的GET参数(string)</param>

/// <param name="strPageCount">表的总页数(string)</param>

/// <returns>strPageBar</returns>

public string GetlblPagingBind(string strParameter,string strPageCount)

{

string strPage = string.Empty;

if( strParameter == null )

{ strPage = "1"; }

else

{ strPage = strParameter; }

//设置页码

string strPageBar="";

if (dg.AllowPaging.ToString() == "False" )

{

strPageBar+="<nobr>\n";

strPageBar+="[当前页]:"+(int.Parse(strPage)).ToString()+"/"+strPageCount+" \n";

if (strPage == "1")

{

strPageBar+="<a disabled='disabled'>[第一页]</a> \n";

strPageBar+="<a disabled='disabled'>[上一页]</a> \n";

}

else

{

strPageBar+="<a href=\"?"+strParameter+"&page=1\">[第一页]</a> \n";

strPageBar+="<a href=\"?"+strParameter+"&page="+(int.Parse(strPage)-1).ToString()+"\">[上一页]</a> \n";

}

if (strPage == strPageCount)

{

strPageBar+="<a disabled='disabled'>[下一页]</a> \n";

strPageBar+="<a disabled='disabled'>[最后一页]</a> \n";

}

else

{

strPageBar+="<a href=\"?"+strParameter+"&page="+(int.Parse(strPage)+1).ToString()+"\">[下一页]</a> \n";

strPageBar+="<a href=\"?"+strParameter+"&page="+strPageCount+"\">[最后一页]</a> \n";

}

strPageBar+=@"<script language='javascript'>function goto(page){if(!/^\d+$/.test(page))alert('页码格式不正确'); else this.location='?&page='+page;}</script>";

strPageBar+="<a href=\"javascript:goto(document.getElementById('tboxPage').value)\" id='LinkGoto'>[跳转到第]</a>\n";

strPageBar+="<INPUT class='input' id='tboxPage' type='text' size='3' onkeydown='javascript:if(event.keyCode==13){goto(this.value);return false;}'>\n";

strPageBar+="[页]\n";

strPageBar+="</nobr>";

}

return strPageBar;

}

#region Web 窗体设计器生成的代码

override protected void OnInit(EventArgs e)

{

// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

InitializeComponent();

base.OnInit(e);

}