page1 ：
以下是page1页面的后台代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="page1.aspx.cs" Inherits="_Default" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
请输入内容：<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
PostBackUrl="~/page2.aspx" Text="提交到page2" />
</div>
</form>
</body>
</html>
以下是page1页面的前台代码：
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)
{
}
public string username
{
get { return this.TextBox1.Text;}
}
protected void Button1_Click(object sender, EventArgs e)
{
}
}
以下是page2页面的后台代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="page2.aspx.cs" Inherits="page2" %>
<%@ PreviousPageType VirtualPath="~/page1.aspx" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
以下是page2页面的前台代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class page2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (PreviousPage!=null)
{
//第一种方法（页内模式）
TextBox txt = (TextBox)PreviousPage.FindControl("TextBox1");
this.Label1.Text = txt.Text;
//第二种方法(后台代码)
this.Response.Write(this.PreviousPage.username);
}
else
{
this.Response.Redirect("page1.aspx");
}
}
}