前台HTML代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<h1>分页</h1>
<asp:Repeater ID="Repeater1" runat="server">
<HeaderTemplate>
<table width="100%" border="0" cellspacing="1" cellpadding="1" bgcolor="#6633CC">
<tr>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">代号</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">姓名</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">系列</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">上市时间</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">油耗</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">功率</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">排量</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">价格</td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF">图片</td>
</tr>
</HeaderTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
<ItemTemplate>
<table width="100%" border="0" cellspacing="1" cellpadding="1" bgcolor="#6633CC">
<tr>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Code") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Name") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Brand") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Time") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Oil") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Powers") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Exhaust") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Price") %></td>
<td width="120" heigh="30" align="center" valign="middle" bgcolor="#FFFFFF"><%#Eval("Pic") %></td>
</tr>
</ItemTemplate>
</asp:Repeater>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="上一页" />
<asp:Button ID="Button2" runat="server" Text="下一页" OnClick="Button2_Click" />
<asp:Label ID="Label2" runat="server" Text="跳转到"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server" Width="37px"></asp:TextBox>
<asp:Label ID="Label3" runat="server" Text="页"></asp:Label>
<asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="跳转" />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:Literal ID="Literal1" runat="server"></asp:Literal>
</form>
</body>
</html>
后台C#代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//绑定数据 每一页有多少条数据
if (!IsPostBack)
{
//第一次页面加载 给session附上值
Session["ys"] = 1;
TestDataContext context = new TestDataContext();
////查汽车表 取前五条数据 Skip()跳过几条，Take()取几条
// Repeater1.DataSource = context.Car.Skip(0).Take(5);
//要调过的条数
//先取出session里面的值 当前页数减去一 乘以五
TiaoXhuan(1);
}
Literal1.Text = "";
}
protected void Button1_Click(object sender, EventArgs e)
{
//点上一页 先把session里面的值取出来 转成整型
int ys = Convert.ToInt32(Session["ys"]);
if (ys > 1)
{
TestDataContext context = new TestDataContext();
//点了上一页 当前页数减一
ys = ys - 1;
Session["ys"] = ys;
TiaoXhuan(ys);
}
else
{
Literal1.Text="<script type=‘text/javascript‘>alert(‘当前已是第一页‘)</script>";
}
}
protected void Button2_Click(object sender, EventArgs e)
{
//下一页 先取出session里面的值
int ys = Convert.ToInt32(Session["ys"]);
TestDataContext context = new TestDataContext();
//先判断是不是最后一页 去除所有的条数 除去每一页的条数5 看得到的数是多少
//int all = context.Car.Count();//取出的条数
// int zys;
// if (all % 5 == 0)//得到的总页数
// {
// zys = all / 5;
// }
// else
// {
// zys = all / 5 + 1;
// }
int zys = ALLYS();
if (ys < zys)
{
ys = ys + 1;
Session["ys"] = ys;
TiaoXhuan(ys);
}
else
{
Literal1.Text = "<script type=‘text/javascript‘>alert(‘当前已是最后一页‘)</script>";
}
}
//做函数 调用 实现跳转页面 给一个参数 跳到第几页
public void TiaoXhuan(int ys)
{
TestDataContext context = new TestDataContext();
int qu = (ys - 1) * 5; //计算出跳到第几页
Repeater1.DataSource = context.Car.Skip(qu).Take(5);
Repeater1.DataBind();
//lable1里面要显示 当前第几页 总共第几页
int all = ALLYS();
Label1.Text = "当前第" + ys + "页，总共："+all+"页";
}
public int ALLYS()//计算出总页数
{
TestDataContext context = new TestDataContext();
int all = context.Car.Count();
int zys;
if (all % 5 == 0)
{
zys = all / 5;
}
else
{
zys = all / 5 + 1;
}
return zys;
}
protected void Button3_Click(object sender, EventArgs e)
{
int ys = 1;
try
{
ys = Convert.ToInt32(TextBox1.Text);
}
catch (Exception)
{
Literal1.Text = "<script type=‘text/javascript‘>alert(‘请输入数字！‘)</script>";
}
//输入页数 跳转到多少页
//int ys = Convert.ToInt32(TextBox1.Text);
int all = ALLYS();
if (1 <= ys && ys <= all)
{
//调用跳转函数
TiaoXhuan(ys);
//把session里面的值替换一下
Session["ys"] = ys;
}
else
{
Literal1.Text = "<script type=‘text/javascript‘>alert(‘超出范围！‘)</script>";
}
}
}
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时间： 2024-10-12 04:46:18