DataList分页

 1 <div style="height:1135px;border:solid 1px #808080;">
 2 
 3     <div id="ssigeer">
 4         <ul>
 5             <li><a href="caseli.aspx">知名客户</a></li>
 6             <li><a href="caseer.aspx">地区分类</a></li>
 7             <li><a href="casesan.aspx">行业分类</a></li>
 8             <li><a href="caseguo.aspx">国际案例</a></li>
 9         </ul>
10     </div>
11 
12     <div id="anniu">
13         <ul>
14             <li><a href="caseer.aspx">全部</a></li>
15             <li><a href="caseer.aspx?id=1">北京</a></li>
16             <li><a href="caseer.aspx?id=2">山东</a></li>
17             <li><a href="caseer.aspx?id=3">上海</a></li>
18             <li><a href="caseer.aspx?id=4">江苏</a></li>
19             <li><a href="caseer.aspx?id=5">浙江</a></li>
20             <li><a href="caseer.aspx?id=6">陕西</a></li>
21             <li><a href="caseer.aspx?id=7">天津</a></li>
22             <li><a href="caseer.aspx?id=8">河北</a></li>
23             <li><a href="caseer.aspx?id=9">湖北</a></li>
24             <li><a href="caseer.aspx?id=10">河南</a></li>
25             <li><a href="caseer.aspx?id=11">四川</a></li>
26             <li><a href="caseer.aspx?id=12">湖南</a></li>
27             <li><a href="caseer.aspx?id=13">福建</a></li>
28             <li><a href="caseer.aspx?id=14">黑龙江</a></li>
29             <li><a href="caseer.aspx?id=15">云南</a></li>
30             <li><a href="caseer.aspx?id=16">吉林</a></li>
31             <li><a href="caseer.aspx?id=17">重庆</a></li>
32             <li><a href="caseer.aspx?id=18">内蒙</a></li>
33         </ul>
34     </div>
35 
36     <div id="sjuti">
37 
38         <asp:DataList ID="DataList1" runat="server"  RepeatColumns="4" >
39             <ItemTemplate>
40                 <div id="jutiyi">
41                 <asp:Label ID="nameLabel" runat="server" Text=‘<%# Eval("name") %>‘ />
42                 <br />
43                 <asp:Label ID="contectLabel" runat="server" Text=‘<%# Eval("contect") %>‘ />
44                 <br />
45                 <br /></div>
46             </ItemTemplate>
47         </asp:DataList>
48         <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:xtConnection %>" SelectCommand="SELECT [name], [contect] FROM [case_address] WHERE ([type] = @type)">
49             <SelectParameters>
50                 <asp:QueryStringParameter DefaultValue="1" Name="type" QueryStringField="id" Type="Int32" />
51             </SelectParameters>
52         </asp:SqlDataSource>
53 
54         <div id="fenye" runat="server" style="position: absolute; margin-left: 268px;margin-top:50px;" >
55             <table>
56           <tr><td>
57            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>　
58            <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>　　
59            <asp:HyperLink ID="HyperLink1" runat="server">上一页</asp:HyperLink>　　
60            <asp:HyperLink ID="HyperLink2" runat="server">下一页</asp:HyperLink></td>
61          </tr>
62     </table>
63         </div>
64     </div>
65         </div>

1  protected void Page_Load(object sender, EventArgs e)
2     {
3         MaintainScrollPositionOnPostBack = true;
4         DataListBind();
5         buxianshi();
6     }

 1 private void DataListBind()
 2     {
 3         PagedDataSource PDS = new PagedDataSource();
 4         PDS.DataSource = SqlDataSource1.Select(DataSourceSelectArguments.Empty);
 5         //连接数据源
 6         PDS.AllowPaging = true;
 7         PDS.PageSize = 32;//每页显示32个数据
 8         PDS.CurrentPageIndex = CurrentPage() - 1;
 9         DataList1.DataSource = PDS;
10         DataList1.DataBind();
11 
12 
13         Label1.Text = "第" + (PDS.CurrentPageIndex + 1).ToString() + "页";
14         Label2.Text = "/共" + PDS.PageCount.ToString() + "页";
15 
16 
17         if (!PDS.IsFirstPage)
18         {
19             //HyperLink1.NavigateUrl = "caseer.aspx?id=3&page=" + (CurrentPage() - 1).ToString();
20             HyperLink1.NavigateUrl = "caseer.aspx?id=" + CurrentPaged().ToString() + "&page=" + (CurrentPage() - 1).ToString();
21         }
22         if (!PDS.IsLastPage)
23         {
24             //HyperLink2.NavigateUrl = "caseer.aspx?id=3&page=" + (CurrentPage() + 1).ToString();
25             HyperLink2.NavigateUrl = "caseer.aspx?id=" + CurrentPaged().ToString() + "&page=" + (CurrentPage() + 1).ToString();
26         }
27     }
28 
29      private int CurrentPage()//取出正确的页数当作参数
30     {
31         if (Request["Page"] != null)
32         {
33             return Convert.ToInt16(Request["Page"]);
34         }
35         else
36         {
37             return 1;
38         }
39     }
40 
41      private int CurrentPaged()//从前台取出正确的id 当作参数
42      {
43          if (Request["id"] != null)
44          {
45              return Convert.ToInt16(Request["id"]);
46          }
47          else
48          {
49              return 1;
50          }
51      }
52 
53     private void buxianshi()
54      {
55          PagedDataSource PDS = new PagedDataSource();
56          PDS.DataSource = SqlDataSource1.Select(DataSourceSelectArguments.Empty);
57          PDS.AllowPaging = true;
58          PDS.PageSize = 32;
59          PDS.CurrentPageIndex = CurrentPage() - 1;
60         if(PDS.PageCount==1)
61         {
62             fenye.Visible = false;//如果页数等于1，则不显示分页的div，页面加载时执行。
63         }
64      }