asp.net分页控件（c#）

分页是web开发中频繁用的模块，今天做了一个分页控件，与大家共享，首先说明以下：

1、此控件利用DataSet分页，没用采用存储过程分页，也许不适合大批量数据分页。

2、 此控件需要结合我上一片文章（“c#操作存储过程的通用封装”）使用。

控件前台代码：

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="commPage.ascx.cs" Inherits="commPage" %>

<div>

<span>共<asp:Label ID="lblRecordCount" runat="server"></asp:Label>条</span> <span>当前<asp:Label

ID="lblCurrentPage" runat="server" />/<asp:Label ID="lblPageCount" runat="server"

Text="Label" />页 </span> <span class="bia">

<asp:LinkButton ID="lbnPrevPage" runat="server" CommandName="prev" OnCommand="Page_OnClick">上一页</asp:LinkButton></span>

      <span class="bia"><asp:LinkButton ID="lbnNextPage"

runat="server" CommandName="next" OnCommand="Page_OnClick">下一页</asp:LinkButton></span></div>

控件后台代码：

1 using System;

2 using System.Collections;

3 using System.Configuration;

4 using System.Data;

5 using System.Linq;

6 using System.Web;

7 using System.Web.Security;

8 using System.Web.UI;

9 using System.Web.UI.HtmlControls;

10 using System.Web.UI.WebControls;

11 using System.Web.UI.WebControls.WebParts;

12 using System.Xml.Linq;

13 using mjqDb = mjq.zy5777.com;

14 using System.Data.SqlClient;

15

16 public partial class commPage : System.Web.UI.UserControl

17 {

18 //查询分页数据总数的存储过程名称

19 private string totalNumProc;

20

21 public string TotalNumProc

22 {

23 get { return totalNumProc; }

24 set { totalNumProc = value; }

25 }

26 //查询分页数据的存储过程名称

27 private string selectProc;

28

29 public string SelectProc

30 {

31 get { return selectProc; }

32 set { selectProc = value; }

33 }

34

35 //绑定数据的控件

36 private DataList bindControl;

37

38 public DataList BindControl

39 {

40 get { return bindControl; }

41 set { bindControl = value; }

42 }

43

44 private int pageSize;

45

46 public int PageSize

47 {

48 get { return pageSize; }

49 set { pageSize = value; }

50 }

51

52 //查询分页数据总数的存储过程参数

53 private SqlParameter[] totalParameters;

54

55 public SqlParameter[] Parameters

56 {

57 get { return totalParameters; }

58 set { totalParameters = value; }

59 }

60 //查询分页数据的存储过程参数

61 private SqlParameter[] selectParameters;

62

63 public SqlParameter[] SelectParameters

64 {

65 get { return selectParameters; }

66 set { selectParameters = value; }

67 }

68 int RecordCount, PageCount, CurrentPage;

69 SqlConnection conn;

70 SqlCommand cmd;

71 protected void Page_Load(object sender, EventArgs e)

72 {

73

74 //判断是不是第一次请求

75 if (!Page.IsPostBack)

76 {

77 ListBind();

78 CurrentPage = 0;

79 ViewState["PageIndex"] = 0;

80

81 //计算总共有多少条记录

82 RecordCount = CalculateRecord();

83 lblRecordCount.Text = RecordCount.ToString();

84

85 //计算总共多少页

86 PageCount = RecordCount / PageSize;

87 lblPageCount.Text = PageCount.ToString();

88 ViewState["PageCount"] = PageCount;

89

90 }

91 }

92 //计算总页数

93 public int CalculateRecord()

94 {

95 int intCount;

96 string strCount = TotalNumProc;

97 SqlDataAdapter adpt = mjqDb.execStoreProce.createAdpt(totalNumProc, ref cmd, ref conn, Parameters);

98 DataSet dsC = new DataSet();

99 adpt.Fill(dsC);

//SqlCommand sqlcmd = new SqlCommand(strCount, sqlcon);

//SqlDataReader sdr = sqlcmd.ExecuteReader();

DataRow drC = dsC.Tables[0].Rows[0];

if (Convert.ToInt32(drC[0]) > 0)

{

intCount = Convert.ToInt32(drC[0]);

}

else

{

intCount = 0;

}

adpt.Dispose();

dsC.Dispose();

cmd.Dispose();

conn.Close();

return intCount;

}

ICollection CreateSource() //分页数据集合

{

int StartIndex;

//设定导入的起终地址

StartIndex = CurrentPage * PageSize;

string strSel = SelectProc;

DataSet ds = new DataSet();

SqlDataAdapter sda = mjqDb.execStoreProce.createAdpt(SelectProc, ref cmd, ref conn, SelectParameters);

sda.Fill(ds, StartIndex, PageSize, "jixie");//该句表示将数据源中从StartIndex位置取出PageSize条记录导入DataSet.

return ds.Tables["jixie"].DefaultView;

ds.Dispose();

cmd.Dispose();

conn.Close();

}

//数据绑定

public virtual void ListBind()

{

BindControl.DataSource = CreateSource();

BindControl.DataBind();

lbnNextPage.Enabled = true;

lbnPrevPage.Enabled = true;

if (CurrentPage == (PageCount - 1)) lbnNextPage.Enabled = false;

if (CurrentPage == 0) lbnPrevPage.Enabled = false;

lblCurrentPage.Text = (CurrentPage + 1).ToString();

}

//上下页

public void Page_OnClick(Object sender, CommandEventArgs e)

{

CurrentPage = (int)ViewState["PageIndex"];

PageCount = (int)ViewState["PageCount"];

string cmd = e.CommandName;

//判断cmd,以判定翻页方向

switch (cmd)

{

case "next":

if (CurrentPage < (PageCount - 1)) CurrentPage++;

break;

case "prev":

if (CurrentPage > 0) CurrentPage--;

break;

}

ViewState["PageIndex"] = CurrentPage;

ListBind();

}

}

调用：

<%@ Register Src="commPage.ascx" TagName="commPage" TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title>无标题页</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:DataList ID="dataList" runat="server">

<ItemTemplate>

<div>

<%#Eval("title") %>

</div>

</ItemTemplate>

</asp:DataList>

</div>

<div>

<uc1:commPage ID="commPage1" runat="server" />

</div>

</form>

</body>

</html>

在调用页的后台 page_load函数中设置属性：

1 using System;

2 using System.Collections;

3 using System.Configuration;

4 using System.Data;

5 using System.Linq;

6 using System.Web;

7 using System.Web.Security;

8 using System.Web.UI;

9 using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using mjqDb = mjq.zy5777.com;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

commPage1.TotalNumProc = "totalProc";

commPage1.SelectProc = "selectProc";

commPage1.PageSize = 5;

commPage1.BindControl = dataList;

}

}