DataList分页代码

本文章的DataList控件的分页是用PageDataSource类写的

前台：

<asp:DataList ID="DL_Message" runat="server" Width="560px"  OnItemDataBound="DL_Message_ItemDataBound" OnItemCommand="DL_Message_ItemCommand">
<HeaderTemplate>
<hr />
</HeaderTemplate>
    <ItemTemplate>
        <table style=" 536px">
            <tr >
                <td align="left">
                    主题:<%#DataBinder.Eval(Container.DataItem,"msg_theme")%></td>
            </tr>
            <tr>
                <td align="center" >
                    <%#DataBinder.Eval(Container.DataItem,"msg_content") %>
                    </td>
            </tr>
            <tr >
                <td align="center" >
                    <%#DataBinder.Eval(Container.DataItem, "msg_content")%>
                </td>
            </tr>
            <tr >
                
                <td align="right" style="height: 16px" >留言人:<%#DataBinder.Eval(Container.DataItem,"msg_name") %>
                    </td>
            </tr>
            <tr >
                <td align="right" >
                    留言时间：<%#DataBinder.Eval(Container.DataItem,"AddDate") %>
                </td>
            </tr>
        </table>
        <hr/>
    </ItemTemplate>
    <FooterTemplate>
    <table style="536px;">
    <tr><td style="text-align:left; height: 36px;"><asp:ImageButton ID="pro" runat="server"  ImageUrl="~/images/s3.gif" CommandName="pro" /> &nbsp;&nbsp;  &nbsp;&nbsp; <asp:ImageButton ID="next" ImageUrl="~/images/s4.gif" runat="server" CommandName="next" />
        &nbsp; &nbsp; 共<asp:Label ID="count" runat="server" Width="15px"></asp:Label>页&nbsp;&nbsp;第<asp:Label ID="num" runat="server" Width="34px"></asp:Label>页
        &nbsp;&nbsp;
    </td></tr>
    </table>
    </FooterTemplate>
</asp:DataList>

后台：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

protected static PagedDataSource Pds;
 

class DataList分页
  {
    protected void Page_Load(object sender, EventArgs e) 
      {
        if (!Page.IsPostBack) 
          {
             FillData();
          }
     }
    static PagedDataSource Pds;
    protected void bindborder()
    {
        string selectstr = "select * from Messages";
        DataSet ds = DB.getDataset(selectstr);
        Pds = new PagedDataSource();
        Pds.DataSource = ds.Tables[0].DefaultView;
        Pds.AllowPaging = true;
        Pds.PageSize = 3;
        this.DL_Message.DataSource = Pds;
        this.DL_Message.DataBind();
    }
protected void DL_Message_ItemDataBound(object sender, DataListItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Footer)
        {
            Label lbl = new Label();
            lbl = (Label)e.Item.FindControl("count");
            int a = Pds.Count;
            lbl.Text = Pds.PageCount.ToString() ;
            lbl=(Label)e.Item.FindControl("num");
            lbl.Text =Convert.ToString(Pds.CurrentPageIndex + 1);
        }
    }


    protected void DL_Message_ItemCommand(object source, DataListCommandEventArgs e)
    {
        //上一页
        if (e.CommandName == "pro")
        {
            if (Pds.CurrentPageIndex > 0)
            {
                Pds.CurrentPageIndex--;
            }
            else
            {
                return;
            }
            this.DL_Message.DataSource = Pds;
            this.DL_Message.DataBind();
        }
        else if(e.CommandName=="next")
        {
            if (Pds.CurrentPageIndex <Pds.PageCount-1)
            {
                Pds.CurrentPageIndex++;
            }
            else
            {
                return;
            }
            this.DL_Message.DataSource = Pds;
            this.DL_Message.DataBind();
        }
    }
}