ASP.NET防后退
如有页面Admin,则在其cs文件中写如下代码:
protected void Page_Load(object sender, EventArgs e)
{
Response.AddHeader("Cache-Control", "no-cache");
Response.Expires = -1;
Response.Cache.SetNoStore();
Response.AddHeader("Pragma", "no-cache");
Response.AddHeader("Last-Modified", DateTime.Now.ToString() + " GMT");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
if (Session["AdminNumber"] == null)
{
Response.Redirect("~/Login.aspx");
}
}
在Login页的cs文件中写如下代码:
protected void Page_Load(object sender, EventArgs e)
{
Response.AddHeader("Cache-Control", "no-cache");
Response.Expires = -1;
Response.Cache.SetNoStore();
Response.AddHeader("Pragma", "no-cache");
Response.AddHeader("Last-Modified", DateTime.Now.ToString() + " GMT");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
if (!IsPostBack)
{
Session.Clear();
}
}
如此便可轻松拒绝页面的回退!
相关文档:
protected void Page_Load(object sender, EventArgs e)
{
}
#region OnPreInit 第一步
protected override void OnPreInit(EventArgs e)
{
//检查 ......
+++ 修改Global.asax文件:
<%@ Application Language="C#" %>
<script runat="server">
void Application_Start(object sender, EventArgs e)
{
Application["count"] = 0;
}
void Application_End(object sender, EventArgs e)
{ }
void Application_Error(object sender, EventArgs ......
读XML文件
DataSet books = new DataSet();
books.ReadXml(MapPath("booklist.xml"));
booklist.DataSource = books;
booklist.DataBind(); ......
效果图
Default.aspx页面的内容
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Verify._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. ......
第一步 掌握一门.NET面向对象语言,C#或VB.NET 我强烈反对在没系统学过一门面向对象(OO)语言的前提下去学ASP.NET。 ASP.NET是一个全面向对象的技术,不懂OO,那绝对学不下去!
第二步 对.NET Framework类库有一定的了解 可以通过开发Windows Form应用程序来学习.NET Framework。ASP.NET是建构在.NET Framework之上的 ......