原文链接：http://www.cnblogs.com/bbqqqbq/archive/2008/12/05/1348708.html
页面和页面之间传参数可以通过url，也可以通过form来传值，今天总结的是另外一种，跨页传参。
服务器Button有一个PostBackUrl属性，这个是用来回传的，直接写代码算了。
一、请求页面：
HTML
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ResponseUrl.aspx.cs" Inherits="MyWeb.PostBackDemo.ResponseUrl" %>
<!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>请求页面</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Button PostBack Demo
</div>
<div>
<asp:Button ID="btPostBack" runat="server" Text="Button" PostBackUrl="~/PostBackDemo/RequestUrl.aspx" /></div>
</form>
</body>
</html>
CS：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using DoMain;
namespace MyWeb.PostBackDemo
{
public partial class ResponseUrl : System.Web.UI.Page
{
public string ResponseString = string.Empty;
public Customer MyCustomer;
protected void Page_Load(object sender, EventArgs e)
{
ResponseString = "Hello World";
MyCustomer = new Customer();
MyCustomer.CustomerName = Page.Title;
MyCustomer.CustomerAddress = Request.Url.AbsoluteUri;
MyCustomer.CustomerAge = DateTime.Now.Second;
}
}
}
Customer类CS：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace DoMain
{
public class Customer
{
private string _customerName;
private int _customerAge;
private string _customerAddress;
public string CustomerName {
get { return _customerName; }
set { _customerName = value; }
}
public int CustomerAge {
get { return _customerAge; }
set { _customerAge = value; }
}
public string CustomerAddress {
get { return _customerAddress; }
set { _customerAddress = value; }
}
}
}
响应页面：
HTML
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="RequestUrl.aspx.cs" Inherits="MyWeb.PostBackDemo.RequestUrl" %>
<%@ PreviousPageType VirtualPath="~/PostBackDemo/ResponseUrl.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>响应页面</title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
CS：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using DoMain;
namespace MyWeb.PostBackDemo
{
public partial class RequestUrl : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (PreviousPage != null)
{
Customer MyCustomer = PreviousPage.MyCustomer;
Response.Write(PreviousPage.ResponseString);
Response.Write("<br \\>");
Response.Write(MyCustomer.CustomerName);
Response.Write("<br \\>");
Response.Write(MyCustomer.CustomerAddress);
Response.Write("<br \\>");
Response.Write(MyCustomer.CustomerAge.ToString());
}
}
}
}
关键的地方就是：
响应页面的HTML中的<%@ PreviousPageType VirtualPath="~/PostBackDemo/ResponseUrl.aspx" %>
OK，就这么简单
如果请求页面比较大，就比较耗能，如果页面不是很大的话，我觉得用这个还是蛮爽的，特别是对于那种带步骤的，分一，二，三等几步走的逻辑时，用这个比较爽。
