个人学习代码保存:例1.asp.net DataList相关操作

页面前台代码：

 1 <% @ Page Language = " C# "  AutoEventWireup = " true "   CodeFile = " Default.aspx.cs "  Inherits = " _Default "   %>
 2
 3 <! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
 4
 5 < html xmlns = " http://www.w3.org/1999/xhtml "   >
 6 < head runat = " server " >
 7      < title > 无标题页 </ title >
 8 </ head >
 9 < body >
10      < form id = " form1 "  runat = " server " >
11      < div >
12          < asp:DataList ID = " DataList1 "  runat = " server "  Width = " 468px "  OnItemDataBound = " DataList1_ItemDataBound " >
13          < ItemTemplate >
14          < div ><% #DataBinder.Eval(Container.DataItem, " title " , " {0} " )  %>   </ div >   
15         
16          < div >
17              <% #DataBinder.Eval(Container.DataItem, " title " , " {0} " )  %></ div >
18              < div align = " right " >
19          < asp:LinkButton ID = " LinkButton1 "  runat = " server "  CommandArgument = ' <%#DataBinder.Eval(Container.DataItem,"id","{0}") %> '  OnCommand = " LinkButton1_Command " > 回复留言 </ asp:LinkButton >
20              < asp:HyperLink ID = " HyperLink1 "  runat = " server "  NavigateUrl = ' <%# "del.aspx?id="+Eval("id") %> ' > 删除留言 </ asp:HyperLink >
21              </ div >
22          </ ItemTemplate >
23              < SeparatorTemplate >
24                  < hr  />
25              </ SeparatorTemplate >
26          </ asp:DataList ></ div >
27          < asp:HyperLink ID = " lnkPrev "  runat = " server " > 上一页 </ asp:HyperLink >
28          < asp:HyperLink ID = " lnkNext "  runat = " server " > 下一页 </ asp:HyperLink >
29      </ form >
30 </ body >
31 </ html >
32

后台代码：

 1 using  System;
 2 using  System.Data;
 3 using  System.Configuration;
 4 using  System.Web;
 5 using  System.Web.Security;
 6 using  System.Web.UI;
 7 using  System.Web.UI.WebControls;
 8 using  System.Web.UI.WebControls.WebParts;
 9 using  System.Web.UI.HtmlControls;
10 using  System.Data.SqlClient;
11
12 public   partial   class  _Default : System.Web.UI.Page 
13 {
14    protected void Page_Load(object sender, EventArgs e)
15    {
16        if (!IsPostBack)
17        {
18            BindData();
19        }
20    }
21
22    private void BindData()
23    {
24        string connstr=ConfigurationManager.AppSettings["ConnectionString"].ToString();
25        SqlConnection con = new SqlConnection(connstr);
26        if (con.State.Equals(ConnectionState.Closed))
27        {
28            con.Open();
29        }
30
31        string sqlText = "select * from guestbook";
32        SqlDataAdapter sda = new SqlDataAdapter(sqlText,con);
33        DataSet ds = new DataSet();
34        sda.Fill(ds);
35
36        PagedDataSource ps = new PagedDataSource();
37        ps.DataSource = ds.Tables[0].DefaultView;
38        ps.AllowPaging = true;
39        ps.PageSize = 10;
40        int CurPage;
41
42        if (Request.QueryString["Page"] != null)
43        {
44            CurPage = Convert.ToInt32(Request.QueryString["Page"]);
45        }
46        else
47        {
48            CurPage = 1;
49        }
50
51        ps.CurrentPageIndex = CurPage - 1;
52
53
54        if (!ps.IsFirstPage)
55        {
56            lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToInt32(CurPage-1);
57        }
58        if (!ps.IsLastPage)
59        {
60            lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToInt32(CurPage+1);
61        }
62
63        this.DataList1.DataSource = ps;
64        this.DataList1.DataBind();
65 
66    }
67    protected void LinkButton1_Command(object sender, CommandEventArgs e)
68    {
69        Response.Redirect("hfliuyan.aspx?id="+e.CommandArgument);
70    }
71    protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
72    {
73        HyperLink hpl=(HyperLink)(e.Item.FindControl("HyperLink1"));
74        if (hpl != null)
75        
76
77        {
78            hpl.Attributes.Add("onclick","return confirm('确定删除吗?');");
79        }
80    }
81}
82

web.config

1 <? xml version = " 1.0 " ?>
2 < configuration xmlns = " http://schemas.microsoft.com/.NetConfiguration/v2.0 " >
3      < appSettings >
4          < add key = " ConnectionString "  value = " server=.;database=OfficeAutoDb;uid=sa;pwd=; " />
5      </ appSettings >
6      < system.web >
7          < compilation debug = " true " /></ system.web ></ configuration >
8

所用的数据表：

CREATE   TABLE   [ dbo ] . [ guestbook ]  (
     [ id ]   [ int ]   IDENTITY  ( 1 ,  1 )  NOT   NULL  ,
     [ kindId ]   [ int ]   NULL  ,
     [ title ]   [ varchar ]  ( 50 ) COLLATE Chinese_PRC_CI_AS  NULL  ,
     [ body ]   [ varchar ]  ( 500 ) COLLATE Chinese_PRC_CI_AS  NULL  ,
     [ datetime ]   [ datetime ]   NOT   NULL  
)  ON   [ PRIMARY ]