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"
<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);
100 //SqlCommand sqlcmd = new SqlCommand(strCount, sqlcon);
101 //SqlDataReader sdr = sqlcmd.ExecuteReader();
102 DataRow drC = dsC.Tables[0].Rows[0];
103 if (Convert.ToInt32(drC[0]) > 0)
104 {
105 intCount = Convert.ToInt32(drC[0]);
106 }
107 else
108 {
109 intCount = 0;
110 }
111 adpt.Dispose();
112 dsC.Dispose();
113 cmd.Dispose();
114 conn.Close();
115 return intCount;
116 }
117 ICollection CreateSource() //分页数据集合
118 {
119 int StartIndex;
120
121 //设定导入的起终地址
122 StartIndex = CurrentPage * PageSize;
123 string strSel = SelectProc;
124 DataSet ds = new DataSet();
125 SqlDataAdapter sda = mjqDb.execStoreProce.createAdpt(SelectProc, ref cmd, ref conn, SelectParameters);
126 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.
127 return ds.Tables["jixie"].DefaultView;
128
129 ds.Dispose();
130 cmd.Dispose();
131 conn.Close();
132 }
133 //数据绑定
134 public virtual void ListBind()
135 {
136 BindControl.DataSource = CreateSource();
137 BindControl.DataBind();
138 lbnNextPage.Enabled = true;
139 lbnPrevPage.Enabled = true;
140 if (CurrentPage == (PageCount - 1)) lbnNextPage.Enabled = false;
141 if (CurrentPage == 0) lbnPrevPage.Enabled = false;
142 lblCurrentPage.Text = (CurrentPage + 1).ToString();
143 }
144
145 //上下页
146 public void Page_OnClick(Object sender, CommandEventArgs e)
147 {
148 CurrentPage = (int)ViewState["PageIndex"];
149 PageCount = (int)ViewState["PageCount"];
150 string cmd = e.CommandName;
151 //判断cmd,以判定翻页方向
152 switch (cmd)
153 {
154 case "next":
155 if (CurrentPage < (PageCount - 1)) CurrentPage++;
156 break;
157 case "prev":
158 if (CurrentPage > 0) CurrentPage--;
159 break;
160 }
161 ViewState["PageIndex"] = CurrentPage;
162 ListBind();
163 }
164 }
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);
100 //SqlCommand sqlcmd = new SqlCommand(strCount, sqlcon);
101 //SqlDataReader sdr = sqlcmd.ExecuteReader();
102 DataRow drC = dsC.Tables[0].Rows[0];
103 if (Convert.ToInt32(drC[0]) > 0)
104 {
105 intCount = Convert.ToInt32(drC[0]);
106 }
107 else
108 {
109 intCount = 0;
110 }
111 adpt.Dispose();
112 dsC.Dispose();
113 cmd.Dispose();
114 conn.Close();
115 return intCount;
116 }
117 ICollection CreateSource() //分页数据集合
118 {
119 int StartIndex;
120
121 //设定导入的起终地址
122 StartIndex = CurrentPage * PageSize;
123 string strSel = SelectProc;
124 DataSet ds = new DataSet();
125 SqlDataAdapter sda = mjqDb.execStoreProce.createAdpt(SelectProc, ref cmd, ref conn, SelectParameters);
126 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.
127 return ds.Tables["jixie"].DefaultView;
128
129 ds.Dispose();
130 cmd.Dispose();
131 conn.Close();
132 }
133 //数据绑定
134 public virtual void ListBind()
135 {
136 BindControl.DataSource = CreateSource();
137 BindControl.DataBind();
138 lbnNextPage.Enabled = true;
139 lbnPrevPage.Enabled = true;
140 if (CurrentPage == (PageCount - 1)) lbnNextPage.Enabled = false;
141 if (CurrentPage == 0) lbnPrevPage.Enabled = false;
142 lblCurrentPage.Text = (CurrentPage + 1).ToString();
143 }
144
145 //上下页
146 public void Page_OnClick(Object sender, CommandEventArgs e)
147 {
148 CurrentPage = (int)ViewState["PageIndex"];
149 PageCount = (int)ViewState["PageCount"];
150 string cmd = e.CommandName;
151 //判断cmd,以判定翻页方向
152 switch (cmd)
153 {
154 case "next":
155 if (CurrentPage < (PageCount - 1)) CurrentPage++;
156 break;
157 case "prev":
158 if (CurrentPage > 0) CurrentPage--;
159 break;
160 }
161 ViewState["PageIndex"] = CurrentPage;
162 ListBind();
163 }
164 }
165
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>
<!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;
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 _Default : System.Web.UI.Page
17 {
18 protected void Page_Load(object sender, EventArgs e)
19 {
20 commPage1.TotalNumProc = "totalProc";
21 commPage1.SelectProc = "selectProc";
22 commPage1.PageSize = 5;
23 commPage1.BindControl = dataList;
24 }
25 }
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 _Default : System.Web.UI.Page
17 {
18 protected void Page_Load(object sender, EventArgs e)
19 {
20 commPage1.TotalNumProc = "totalProc";
21 commPage1.SelectProc = "selectProc";
22 commPage1.PageSize = 5;
23 commPage1.BindControl = dataList;
24 }
25 }
26
