DataList分页问题

参考，这是vs2005的：
testPage.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="testPage.aspx.cs" Inherits="testPage" %><!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">

    <asp:DataList ID="DataList1" runat="server">
            <ItemTemplate>
                 <table cellpadding="0" cellspacing="0" style="width: 400px;">
                  <tr>
                     <td>
                       <asp:Label ID="Label1" runat="server" Font-Size="9pt" Text='<%# Eval("title") %>' ForeColor="Black"></asp:Label></td>
                    </tr>
                   </table>
            </ItemTemplate>
</asp:DataList>
<br />
<table cellpadding="0" cellspacing="0">
        <tr>
            <td style="width: 100px">
                <asp:Label ID="Label5" runat="server" Font-Size="9pt" Text="当前页为 [ ">
                </asp:Label><asp:Label ID="Label7" runat="server" Text="1" Font-Size="9pt"></asp:Label>
                <asp:Label ID="Label3" runat="server" Font-Size="9pt" Text=" ]"></asp:Label></td>
            <td style="width: 40px">
                <asp:LinkButton ID="LinkButton2" runat="server" Font-Size="9pt" Font-Underline="False"
                    ForeColor="Red" OnClick="LinkButton2_Click">首页</asp:LinkButton></td>
            <td style="width: 30px">
                <asp:LinkButton ID="LinkButton3" runat="server" Font-Size="9pt" Font-Underline="False"
                    ForeColor="Red" OnClick="LinkButton3_Click" Width="42px">上一页</asp:LinkButton></td>
            <td style="width: 48px">
                <asp:LinkButton ID="LinkButton4" runat="server" Font-Size="9pt" Font-Underline="False"
                    ForeColor="Red" OnClick="LinkButton4_Click" Width="48px">下一页</asp:LinkButton></td>
            <td style="width: 49px">
                <asp:LinkButton ID="LinkButton5" runat="server" Font-Size="9pt" Font-Underline="False"
                    ForeColor="Red" OnClick="LinkButton5_Click" Width="29px">尾页</asp:LinkButton></td>
            <td align="center" style="width: 118px">
                <asp:Label ID="Label10" runat="server" Text="总页为 [ " Font-Size="9pt" Width="52px"></asp:Label>
                <asp:Label ID="Label2" runat="server" Font-Size="9pt"></asp:Label>
                <asp:Label ID="Label4" runat="server" Font-Size="9pt" Text=" ]"></asp:Label></td>
        </tr>
    </table>
    </form>
</body>
</html>testPage.aspx.csusing System;
using System.Data;
using System.Configuration;
using System.Collections;
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;public partial class testPage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            dlBind();
        }
    }
    public void dlBind()
    {
        int curpage = Convert.ToInt32(this.Label7.Text);
        PagedDataSource ps = new PagedDataSource();
        DataSet ds = bind(); //这里是数据源

        ps.DataSource = ds.Tables[0].DefaultView;
        ps.AllowPaging = true; //是否可以分页
        ps.PageSize = 10; //显示的数量
        ps.CurrentPageIndex = curpage - 1; //取得当前页的页码
        this.LinkButton3.Enabled = true;
        this.LinkButton4.Enabled = true;
        this.LinkButton5.Enabled = true;
        this.LinkButton2.Enabled = true;
        if (curpage == 1)
        {
            this.LinkButton2.Enabled = false;//不显示第一页按钮
            this.LinkButton3.Enabled = false;//不显示上一页按钮
        }
        if (curpage == ps.PageCount)
        {
            this.LinkButton4.Enabled = false;//不显示下一页
            this.LinkButton5.Enabled = false;//不显示最后一页
        }
        this.Label2.Text = Convert.ToString(ps.PageCount);
        this.DataList1.DataSource = ps;
        this.DataList1.DataKeyField = "id";
        this.DataList1.DataBind();
    }

    protected void LinkButton2_Click(object sender, EventArgs e)  //第一页
    {
        this.Label7.Text = "1";   //Label7.Text为当前页
        this.dlBind();
    }
    protected void LinkButton3_Click(object sender, EventArgs e) //上一页
    {
        this.Label7.Text = Convert.ToString(Convert.ToInt32(this.Label7.Text) - 1);
        this.dlBind();
    }
    protected void LinkButton4_Click(object sender, EventArgs e)  //下一页
    {
        this.Label7.Text = Convert.ToString(Convert.ToInt32(this.Label7.Text) + 1);
        this.dlBind();
    }
    protected void LinkButton5_Click(object sender, EventArgs e)  //最后一页
    {
        this.Label7.Text = this.Label2.Text; //Label2.Text为总页数
        this.dlBind();
    }   }

private void prePagebtn_Click(object sender, System.EventArgs e)
{
this.prePagebtn.Text=Convert.ToString((Convert.ToInt32(this.currPage.Text)-1));
this.currPage.Text=this.prePagebtn.Text;
InitBtn();
}
private void nextPagebtn_Click(object sender, System.EventArgs e)
{
this.nextPagebtn.Text=Convert.ToString((Convert.ToInt32(this.currPage.Text)+1));
this.currPage.Text=this.nextPagebtn.Text;
InitBtn();
}
你写的有问题吧！见红字部分，你把button的Text改为数字了，改为
private void prePagebtn_Click(object sender, System.EventArgs e)
{
if(this.currPage.Text > 1)
this.currPage.Text=this.currPage.Text -1;
InitBtn();
}
private void nextPagebtn_Click(object sender, System.EventArgs e)
{
if(this.currPage.Text < this.totalPage.Text)
this.currPage.Text=this.nextPagebtn.Text + 1;
InitBtn();
}

Sorry,你减1的时候先转化下数字，在转化成字符串赋值

int currPageNum = Convert.ToInt32(this.currPage.Text);
if(currPageNum > 1)
currPageNum = currPageNum - 1;
this.currPage.Text = currPageNum.ToString();

调试易

DataList分页问题

解决方案 »