首先是存储过程,只取出我需要的那段数据,如果页数超过数据总数,自动返回最后一页的纪录:
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: Clear
-- Description: 高性能分页
-- http://www.cnblogs.com/roucheng/
-- =============================================
Alter PROCEDURE [dbo].[Tag_Page_Name_Select]-- 传入最大显示纪录数和当前页码
@MaxPageSize int,
@PageNum int,
-- 设置一个输出参数返回总纪录数供分页列表使用
@Count int output
AS
BEGIN
SET NOCOUNT ON;
DECLARE
-- 定义排序名称参数
@Name nvarchar(50),
-- 定义游标位置
@Cursor int
-- 首先得到纪录总数
Select @Count = count(tag_Name)
FROM [viewdatabase0716].[dbo].[view_tag];
-- 定义游标需要开始的位置
Set @Cursor = @MaxPageSize*(@PageNum-1)+1
-- 如果游标大于纪录总数将游标放到最后一页开始的位置
IF @Cursor > @Count
BEGIN
-- 如果最后一页与最大每次纪录数相等，返回最后整页
IF @Count % @MaxPageSize = 0
BEGIN
IF @Cursor > @MaxPageSize
Set @Cursor = @Count - @MaxPageSize + 1
ELSE
Set @Cursor = 1
END
-- 否则返回最后一页剩下的纪录
ELSE
Set @Cursor = @Count - (@Count % @MaxPageSize) + 1
END
-- 将指针指到该页开始
Set Rowcount @Cursor
-- 得到纪录开始的位置
Select @Name = tag_Name
FROM [viewdatabase0716].[dbo].[view_tag]orDER BY tag_Name;
-- 设置开始位置
Set Rowcount @MaxPageSize
-- 得到该页纪录
Select *
From [viewdatabase0716].[dbo].[view_tag]Where tag_Name >= @Name
order By tag_Name
Set Rowcount 0
END 然后是分页控件(… 为省略的生成HTML代码方法):
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>
/// 扩展连接字符串
/// </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>
/// 得到生成的分页HTML
/// </summary>
