分享一个Winform下的分页控件

前两天有一个简单的C/S项目用到分页，因为是Winform下,没有现成的，自己也懒得写，就找了下，看到了ycmoon的一个控件

http://www.cnblogs.com/ycmoon/archive/2010/01/07/1640689.html

参考后，做了简化，只保留了分页的部分，主要是点击事件的Delegate，未做过多测试，有兴趣的朋友可以下载源码自行修改，如有好的建议，也可以给我反馈。[e-mail] ,效果如下：

控件设计界面：

设计时：

运行时：

附带一个取分页数据的存储过程：

Create DataBase Db_TonyPaging
go
use Db_TonyPaging
go
if exists (select 1
            from  sysobjects
           where  id = object_id('DepartDemo')
            and   type = 'U')
   drop table DepartDemo
go
/*==============================================================*/
/* Table: DepartDemo                                            */
/*==============================================================*/
create table DepartDemo (
   PKID                 int                  identity(1,1),
   DName                nvarchar(200)        null,
   DCode                nvarchar(500)        null,
   Manager              nvarchar(50)         null,
   ParentID             int                  null default 0,
   AddUser              nvarchar(50)         null,
   AddTime              datetime             null,
   ModUser              nvarchar(50)         null,
   ModTime              datetime             null,
   CurState             smallint             not null default 0,
   Remark               nvarchar(500)        null,
   F1                   int                  not null default 0,
   F2                   nvarchar(300)        null,
   constraint PK_DEPARTDEMO primary key (PKID)
)
go
truncate table DepartDemo
go
/***************创建54 条测试数据*********************
****************downmoo  [e-mail] ***************/
declare @d datetime 
set @d=getdate() 
declare @i int
set @i=1
while @i<=54
begin
    --插入一条测试数据
    insert into DepartDemo
    select '国家统计局房产审计'+Cast(@i as Nvarchar(10))+'科','0','胡不归',0,'DemoUser',getdate(),
    '','1900-01-01',1,'专业评估全国房价，为老百姓谋福祉',0,''
    set @i=@i+1
end
go
--***********分页存储过程用于SQL server2005/2008、2008R2****************************
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
Create PROCEDURE [dbo].[ZJF_CPP_GetPagedRecordFor2005_2008]
(@Table varchar(1000), --表名,多表是请使用 tA a inner join tB b On a.AID = b.AID
@TIndex nvarchar(100),    --主键，可以带表头 a.AID
@Column nvarchar(2000) = '*',--读取字段
@Sql nvarchar(3000) = '',--Where条件
@PageIndex int = 1,    --开始页码
@PageSize int = 10,        --页大小
@Sort nvarchar(200) = '' --排序字段
)
AS
DECLARE @strWhere varchar(2000)
declare @strsql nvarchar(3900)
IF @Sql IS NOT NULL AND len(ltrim(rtrim(@Sql)))>0
  BEGIN
   SET @strWhere = ' WHERE ' + @Sql + ' '
  END
ELSE
  BEGIN
   SET @strWhere = ''
  END
        
if (charindex(ltrim(rtrim(@TIndex)),@Sort)=0)
begin
    if(@Sort='')
        set @Sort = @TIndex + ' DESC '
    else
        set @Sort = @Sort+ ' , '+@TIndex + ' DESC '
end
IF @PageIndex < 1
  SET @PageIndex = 1
        if @PageIndex = 1 --第一页提高性能
        begin 
          set @strsql = 'select top ' + str(@PageSize) +' '+@Column+ '  from ' + @Table + ' ' + @strWhere + ' ORDER BY  '+ @Sort
        end 
        else
          begin
          /**//**//**//*Execute dynamic query*/    
            DECLARE @START_ID nvarchar(50)
            DECLARE @END_ID nvarchar(50)
            SET @START_ID = convert(nvarchar(50),(@PageIndex - 1) * @PageSize + 1)
            SET @END_ID = convert(nvarchar(50),@PageIndex * @PageSize)
            set @strsql =  ' SELECT '+@Column+ '
           FROM (SELECT ROW_NUMBER() OVER(ORDER BY '+@Sort+') AS rownum, 
             '+@Column+ '
              FROM '+@Table +' WITH(NOLOCK) ' + @strWhere +') AS D
           WHERE rownum BETWEEN '+@START_ID+' AND ' +@END_ID +' ORDER BY '+@Sort
          END
EXEC(@strsql)
print @strsql
    set @strsql = 'SELECT  Count(1) as TotalRecords FROM ' + @Table +' WITH(NOLOCK) ' + @strWhere  
print @strsql
EXEC(@strsql)

在WinForm项目中，需要设置控件的总记录数RecordCount （由分页存储过程计算得出），和翻页事件winFormPager1_PageIndexChanged 。

测试源码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace DemoPager
{
    public partial class frmMain : Form
    {
        public frmMain()
        {
            InitializeComponent();
        }
        #region Members
        //总记录数
        public int RecordCount = 0;
        private string strConn = @"Data Source=ap2/vegnet;Initial Catalog=Db_TonyPaging;Integrated Security=SSPI;";
        //"Server=localhost;database=Db_TonyPaging;uid=sa;pwd=sa;";
        private string strProcedure = "ZJF_CPP_GetPagedRecordFor2005_2008";
        #endregion
        #region Methods
        /// <summary>
        /// 绑定第Index页的数据
        /// </summary>
        /// <param name="Index"></param>
        private void BindDataWithPage(int Index)
        {
            winFormPager1.PageIndex = Index;
            //winFormPager1.PageSize = 10;; ;
            dgvList.DataSource = GetData(strConn, strProcedure, Index, winFormPager1.PageSize);
            //获取并设置总记录数
            winFormPager1.RecordCount = RecordCount;
        }
        /// <summary>
        /// 获取数据源
        /// </summary>
        /// <param name="conn"></param>
        /// <param name="strProcedure"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        private DataTable GetData(string conn, string strProcedure, int pageIndex, int pageSize)
        {
            using (SqlConnection connection = new SqlConnection(conn))
            {
                SqlCommand command = new SqlCommand(strProcedure, connection);
                command.CommandType = CommandType.StoredProcedure;//采用存储过程
                //存储过程参数
                command.Parameters.Add("@Table", SqlDbType.NVarChar, 1000).Value = "DepartDemo";
                command.Parameters.Add("@TIndex", SqlDbType.NVarChar, 100).Value = "PKID";
                command.Parameters.Add("@Column", SqlDbType.NVarChar, 2000).Value = "*";
                command.Parameters.Add("@Sql", SqlDbType.NVarChar, 3000).Value = " 1=1 ";
                command.Parameters.Add("@PageIndex", SqlDbType.Int, 8).Value = pageIndex.ToString();
                command.Parameters.Add("@PageSize", SqlDbType.Int, 8).Value = pageSize.ToString();
                command.Parameters.Add("@Sort", SqlDbType.NVarChar, 200).Value = " PKID desc";
                //打开连接
                if (connection.State != ConnectionState.Open) { connection.Open(); }
                try
                {
                    //填充数据
                    SqlDataAdapter da = new SqlDataAdapter(command);
                    DataSet ds = new DataSet();
                    da.Fill(ds);
                    //获取总记录数
                    RecordCount = Convert.ToInt32(ds.Tables[1].Rows[0][0]);
                    //返回数据集
                    return ds.Tables[0];
                }
                catch (SqlException err)
                {
                    MessageBox.Show(err.Message);
                    return null; ;
                }
                finally
                {
                    connection.Close();
                }
            }
        }
        #endregion
        #region Events
        private void frmMain_Load(object sender, EventArgs e)
        {
            //不自动生成列
            dgvList.AutoGenerateColumns = false;
            //绑定数据
            BindDataWithPage(1);
        }
        /// <summary>
        /// 翻页事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void winFormPager1_PageIndexChanged(object sender, EventArgs e)
        {
            BindDataWithPage(winFormPager1.PageIndex);
        }
        #endregion
    }
}

下载控件源码及演示程序(含SQL)

下载地址二

下载地址一

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