WinForm DataGridView分页功能
WinForm 里面的DataGridView不像WebForm里面的GridView那样有自带的分页功能，需要自己写代码来实现分页，效果如下图： 分页控件 
.CS:
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Data;
5 using System.Drawing;
6 using System.Linq;
7 using System.Text;
8 using System.Windows.Forms;
9 using System.Data.SqlClient;
10
11 namespace allenPageTest
12 {
13 public partial class Form2 : Form
14 {
15 public Form2()
16 {
17 InitializeComponent();
18 }
19
20 private void Form2_Load(object sender, EventArgs e)
21 {
22 BindDataWithPage(1);
23 }
24
25 //总记录数
26 public int RecordCount = 0;
27 private string strConn = @"server=.;database=test;uid=sa;pwd=1234";
28 private string strProcedure = "PageTest ";
29
30
31 /// <summary>
32 /// 绑定第Index页的数据
33 /// </summary>
34 /// <param name="Index"></param>
35 private void BindDataWithPage(int Index)
36 {
37 allenPage1.PageIndex = Index;
38 //winFormPager1.PageSize = 10;
39 DataTable dt = GetData(strConn, strProcedure, Index, allenPage1.PageSize);
40
41 dataGridView1.DataSource = dt;
42
43 //获取并设置总记录数
44 allenPage1.RecordCount = RecordCount;
45 }
46
47
48 /// <summary>
49 /// 获取数据源
50 /// </summary>
51 /// <param name="conn">连接对象</param>
52 /// <param name="strProcedure">存储过程名称</param>
53 /// <param name="pageIndex">页码</param>
54 /// <param name="pageSize">每一页显示的行数</param>
55 /// <returns></returns>
56 private DataTable GetData(string conn, string strProcedure, int pageIndex, int pageSize)
57 {
58
59 using (SqlConnection connection = new SqlConnection(conn))
60 {
61 SqlCommand command = new SqlCommand(strProcedure, connection);
62 command.CommandType = CommandType.StoredProcedure;//采用存储过程
63 command.Parameters.Add("@Table", SqlDbType.NVarChar, 1000).Value = "TableName";//对应的数据表名
64 command.Parameters.Add("@TIndex", SqlDbType.NVarChar, 100).Value = "Index";//主键ID
65 command.Parameters.Add("@Column", SqlDbType.NVarChar, 2000).Value = "*";//要查询的字段，*为全部字段
66 command.Parameters.Add("@Sql", SqlDbType.NVarChar, 3000).Value = " 1=1 ";//查询条件
67 command.Parameters.Add("@PageIndex", SqlDbType.Int, 8).Value = pageIndex.ToString();//当前页码
68 command.Parameters.Add("@PageSize", SqlDbType.Int, 8).Value = pageSize.ToString();//每一页显示的行数
69 command.Parameters.Add("@Sort", SqlDbType.NVarChar, 200).Value = " Column Name asc";//排序的字段
70 //打开连接
71 if (connection.State != ConnectionState.Open)
72 {
73 connection.Open();
74 }
75 try
76 {
77 //填充数据
78 SqlDataAdapter da = new SqlDataAdapter(command);
79 DataSet ds = new DataSet();
80 da.Fill(ds);
81 //获取总记录数
82 RecordCount = Convert.ToInt32(ds.Tables[1].Rows[0][0]);
83 //返回数据集
84 return ds.Tables[0];
85
86 }
87 catch (SqlException err)
88 {
89 MessageBox.Show(err.Message);
90 return null; ;
91 }
92 finally
93 {
94 connection.Close();
95 }
96 }
97 }
98
99 private void allenPage1_PageIndexChanged(object sender, EventArgs e)
100 {
101 BindDataWithPage(allenPage1.PageIndex);
102 }
103 }
104 }
存储过程：
1 IF EXISTS(SELECT * FROM SYSOBJECTS WHERE NAME='PageTest') 2 DROP PROC PageTest 3 GO 4 CREATE PROCEDURE [dbo].[PageTest] 5 @Table VARCHAR(1000), --表名,多表是请使用 tA a inner join tB b On a.AID = b.AID 6 @TIndex NVARCHAR(100), --主键 7 @Column NVARCHAR(2000) = '*',--要查询的字段，全部字段就为* 8 @Sql NVARCHAR(3000) = '',--Where条件 9 @PageIndex INT = 1, --开始页码 10 @PageSize INT = 10, --每页查询数据的行数 11 @Sort NVARCHAR(200) = '' --排序的字段 12 13 AS 14 15 16 17 DECLARE @strWhere VARCHAR(2000) 18 DECLARE @strsql NVARCHAR(3900) 19 IF @Sql IS NOT NULL AND len(LTRIM(RTRIM(@Sql)))>0 20 BEGIN 21 SET @strWhere = ' WHERE ' + @Sql + ' ' 22 END 23 ELSE 24 BEGIN 25 SET @strWhere = '' 26 END 27 28 IF (charindex(LTRIM(RTRIM(@TIndex)),@Sort)=0) 29 BEGIN 30 IF(@Sort='') 31 SET @Sort = @TIndex + ' DESC ' 32 ELSE 33 SET @Sort = @Sort+ ' , '+@TIndex + ' DESC ' 34 END 35 IF @PageIndex < 1 36 SET @PageIndex = 1 37 38 IF @PageIndex = 1 39 BEGIN 40 SET @strsql = 'SELECT TOP ' + str(@PageSize) +' '+@Column+ ' FROM ' + @Table + ' ' + @strWhere + ' ORDER BY '+ @Sort 41 END 42 ELSE 43 BEGIN 44 45 DECLARE @START_ID NVARCHAR(50) 46 DECLARE @END_ID NVARCHAR(50) 47 SET @START_ID = convert(NVARCHAR(50),(@PageIndex - 1) * @PageSize + 1) 48 SET @END_ID = convert(NVARCHAR(50),@PageIndex * @PageSize) 49 SET @strsql = ' SELECT '+@Column+ ' 50 FROM (SELECT ROW_NUMBER() OVER(ORDER BY '+@Sort+') AS RowNum, 51 '+@Column+ ' 52 FROM '+@Table +' WITH(NOLOCK) ' + @strWhere +') AS D 53 WHERE RowNum BETWEEN '+@START_ID+' AND ' +@END_ID +' ORDER BY '+@Sort 54 END 55 EXEC(@strsql) 56 PRINT @strsql 57 SET @strsql = 'SELECT Count(1) as TotalRecords FROM ' + @Table +' WITH(NOLOCK) ' + @strWhere 58 PRINT @strsql 59 EXEC(@strsql)
还有一种存储过程写法，仅供参考：
1 CREATE PROCEDURE pro_DataPageRowNumber
2 @SQL nvarchar(2000),--主句
3 @Order nvarchar(20),--排序
4 @PageIndex int,--当前页
5 @PageSize int,--每页显示数
6 @TotalRow int output--记录总数
7 AS
8 SET NOCOUNT ON;
9 declare @ExceSQL nvarchar(4000)--主句
10 declare @startRow as int--开始行
11 set @startRow=(@PageIndex-1)*@PageSize+1
12 declare @lastRow int--结束行
13 set @lastRow=@PageSize*@PageIndex
14 declare @RowNumber nvarchar(100)
15 set @RowNumber=',Row_NUMBER() OVER(ORDER BY '+@Order+') as RowNumber from '
16 set @SQL=Replace(@SQL,' from ',@RowNumber)
17 set @ExceSQL='select @TotalRow=max(RowNumber) from ('+@SQL+') as tmp'
18 execute sp_executesql @ExceSQl,N'@TotalRow in output',@TotalRow output
19 set @ExceSQL='select * from('+@SQL+') as tmp where RowNumber between'+ Convert(nvarchar,@startRow)
20 +' and '+Convert(nvarchar,@lastRow)
21 execute(@ExceSQL)
22
23 GO
分页的控件是自己写的一个用户控件，生成之后是一个DLL文件，直接引用在项目里面即可，有需要的可以留下邮箱。
