set ANSI_NULLS ONset QUOTED_IDENTIFIER ONGO-- =============================================-- Author: Clear-- Description: 高性能分頁-- http://www.companysz.com/roucheng/-- =============================================Alter PROCEDURE [dbo].[Tag_Page_Name_Select]-- 傳入最大顯示紀錄數(shù)和當前頁碼    @MaxPageSize int,    @PageNum int,-- 設置一個輸出參數(shù)返回總紀錄數(shù)供分頁列表使用    @Count int outputASBEGIN    SET NOCOUNT ON;  DECLARE-- 定義排序名稱參數(shù)        @Name nvarchar(50),-- 定義游標位置        @Cursor int-- 首先得到紀錄總數(shù)  Select @Count = count(tag_Name)    FROM [viewdatabase0716].[dbo].[view_tag];-- 定義游標需要開始的位置    Set @Cursor = @MaxPageSize*(@PageNum-1)+1-- 如果游標大于紀錄總數(shù)將游標放到最后一頁開始的位置    IF @Cursor > @Count    BEGIN-- 如果最后一頁與最大每次紀錄數(shù)相等，返回最后整頁        IF @Count % @MaxPageSize = 0        BEGIN            IF @Cursor > @MaxPageSize                Set @Cursor = @Count - @MaxPageSize + 1            ELSE                Set @Cursor = 1        END-- 否則返回最后一頁剩下的紀錄        ELSE            Set @Cursor = @Count - (@Count % @MaxPageSize) + 1    END-- 將指針指到該頁開始    Set Rowcount @Cursor-- 得到紀錄開始的位置    Select @Name = tag_Name    FROM [viewdatabase0716].[dbo].[view_tag]    orDER BY tag_Name;-- 設置開始位置    Set Rowcount @MaxPageSize-- 得到該頁紀錄        Select *         From [viewdatabase0716].[dbo].[view_tag]        Where tag_Name >= @Name        order By tag_Name    Set Rowcount 0END

using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Text;/// <summary>/// 擴展連接字符串/// </summary>public class ExStringBuilder{    private StringBuilder InsertString;    private StringBuilder PageString;    private int PrivatePageNum = 1;    private int PrivateMaxPageSize = 25;    private int PrivateMaxPages = 10;    private int PrivateCount;    private int PrivateAllPage;    public ExStringBuilder()    {        InsertString = new StringBuilder("");    }    /// <summary>    /// 得到生成的HTML    /// </summary>    public string GetHtml    {        get        {            return InsertString.ToString();        }    }    /// <summary>    /// 得到生成的分頁HTML    /// </summary>    public string GetPageHtml    {        get        {            return PageString.ToString();        }    }    /// <summary>    /// 設置或獲取目前頁數(shù)    /// </summary>    public int PageNum    {        get        {            return PrivatePageNum;        }        set        {            if (value >= 1)            {                PrivatePageNum = value;            }        }    }    /// <summary>    /// 設置或獲取最大分頁數(shù)    /// </summary>    public int MaxPageSize    {        get        {            return PrivateMaxPageSize;        }        set        {            if (value >= 1)            {                PrivateMaxPageSize = value;            }        }    }    /// <summary>    /// 設置或獲取每次顯示最大頁數(shù)    /// </summary>    public int MaxPages    {        get        {            return PrivateMaxPages;        }        set        {            PrivateMaxPages = value;        }    }    /// <summary>    /// 設置或獲取數(shù)據總數(shù)    /// </summary>    public int DateCount    {        get        {            return PrivateCount;        }        set        {            PrivateCount = value;        }    }    /// <summary>    /// 獲取數(shù)據總頁數(shù)    /// </summary>    public int AllPage    {        get        {            return PrivateAllPage;        }    }    /// <summary>    /// 初始化分頁    /// </summary>    public void Pagination()    {        PageString = new StringBuilder("");//得到總頁數(shù)        PrivateAllPage = (int)Math.Ceiling((decimal)PrivateCount / (decimal)PrivateMaxPageSize);//防止上標或下標越界        if (PrivatePageNum > PrivateAllPage)        {            PrivatePageNum = PrivateAllPage;        }//滾動游標分頁方式        int LeftRange, RightRange, LeftStart, RightEnd;        LeftRange = (PrivateMaxPages + 1) / 2-1;        RightRange = (PrivateMaxPages + 1) / 2;        if (PrivateMaxPages >= PrivateAllPage)        {            LeftStart = 1;            RightEnd = PrivateAllPage;        }        else        {            if (PrivatePageNum <= LeftRange)            {                LeftStart = 1;                RightEnd = LeftStart + PrivateMaxPages - 1;            }            else if (PrivateAllPage - PrivatePageNum < RightRange)            {                RightEnd = PrivateAllPage;                LeftStart = RightEnd - PrivateMaxPages + 1;            }            else            {                LeftStart = PrivatePageNum - LeftRange;                RightEnd = PrivatePageNum + RightRange;            }        }//生成頁碼列表統(tǒng)計        PageString.Append(...);        StringBuilder PreviousString = new StringBuilder("");//如果在第一頁        if (PrivatePageNum > 1)        {            ...        }        else        {            ...        }//如果在第一組分頁        if (PrivatePageNum > PrivateMaxPages)        {            ...        }        else        {            ...        }        PageString.Append(PreviousString);//生成中間頁 http://www.companysz.com/roucheng/        for (int i = LeftStart; i <= RightEnd; i++)        {//為當前頁時            if (i == PrivatePageNum)            {                ...            }            else            {                ...            }        }        StringBuilder LastString = new StringBuilder("");//如果在最后一頁        if (PrivatePageNum < PrivateAllPage)        {            ...        }        else        {            ...        }//如果在最后一組        if ((PrivatePageNum + PrivateMaxPages) < PrivateAllPage)        {            ...        }        else        {            ...        }        PageString.Append(LastString);    }    /// <summary>    /// 生成Tag分類表格    /// </summary>    public void TagTable(ExDataRow myExDataRow)    {        InsertString.Append(...);    }

//得到分頁設置并放入session        ExRequest myExRequest = new ExRequest();        myExRequest.PageSession("Tag_", new string[] { "page", "size" });//生成Tag分頁        ExStringBuilder Tag = new ExStringBuilder();        //設置每次顯示多少條紀錄        Tag.MaxPageSize = Convert.ToInt32(Session["Tag_size"]);        //設置最多顯示多少頁碼        Tag.MaxPages = 9;        //設置當前為第幾頁        Tag.PageNum = Convert.ToInt32(Session["Tag_page"]);        string[][] myNamenValue = new string[2][]{            new string[]{"MaxPageSize","PageNum","Count"},            new string[]{Tag.MaxPageSize.ToString(),Tag.PageNum.ToString()}        };//調用存儲過程        DataTable myDataTable = MySQL.BatchGetDB("Tag_Page_Name_Select", myNamenValue, "Count");        Tag.DateCount = (int)mySQL.OutputCommand.Parameters["@Count"].Value;        Tag.Pagination();        HeadPage.InnerHtml = FootPage.InnerHtml = Tag.GetPageHtml;        for (int i = 0, j = myDataTable.Rows.Count; i < j; i++)        {            Tag.TagTable(new ExDataRow(myDataTable.Rows));        }        TagBox.InnerHtml = Tag.GetHtml;