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。
