如何从recursivly检测会话超时停车的BasePage [英] How to stop basepage from recursivly detecting session timeout

问题描述

备选标题：如何在会话超时重定向

Alternate Title: How to redirect on session timeout

我摆脱我最初拥有的BasePage的。

I got rid of the basepage that I had originally.

将这个

void Session_Start(object sender, EventArgs e) 
{
    string cookie = Request.Headers["Cookie"];
    // Code that runs when a new session is started
    if ((null != cookie) && (cookie.IndexOf("ASP.NET_SessionId") >= 0))//&& !Request.QueryString["timeout"].ToString().Equals("yes"))  
    {
        if(Request.QueryString["timeout"] == null || !Request.QueryString["timeout"].ToString().Equals("yes"))
            Response.Redirect("Default.aspx?timeout=yes");
    }
}

将这个在Defualt.aspx页面上：

Put this on the Defualt.aspx page:

 if (!IsPostBack)
    {
        if (Request.QueryString["timeout"] != null && Request.QueryString["timeout"].ToString().Equals("yes"))
        {
            Response.Write("<script>" +
               "alert('Your Session has Timedout due to Inactivity');" +
               "location.href='Default.aspx';" +
               "</script>");
        }
    }

即使超时Default.aspx页面上会出现此解决方案

This solution works even when the timeout occurs on the Default.aspx page

端到端的解决方案

我有检查会话超时基页。 （那它所做的一切）。我想重定向到主页，如果有一个会话超时。然而，主页也继承了这个基地页。

I have a base page that checks for session timeout. (thats all it does). I want to redirect to the home page if there is a session timeout. However, the home page also inherits from this base page.

我不知道如果我解释这口井：

I'm not sure if i'm explaining this well:

第1步：我的一个页面负载

Step 1: One of my pages loads

第2步：它位于超过20分钟（这会导致会话超时）

Step 2: It sits for more than 20 minutes(this would cause session timeout).

第三步：点击我的东西，导致poastback

Step 3: I click on something that causes poastback

第四步：检测的BasePage和超时重定向到Default.aspx的

Step 4: Basepage detects timeout and redirects to default.aspx

第五步：作为Default.aspx的负载，检测的BasePage仍然出现超时，并再次尝试重定向到Default.aspx的。
步骤6：重复步骤5

大胆是不希望影响...

这是的BasePage code。

This is the basepage code.

using System;  
using System.Web.UI;   
public class SessionCheck : System.Web.UI.Page  
{   
public SessionCheck()  {}  

override protected void OnInit(EventArgs e)  
{  
    base.OnInit(e);  

    if (Context.Session != null)  
         {  
             //check the IsNewSession value, this will tell us if the session has been reset.  
             //IsNewSession will also let us know if the users session has timed out  
             if (Session.IsNewSession)  
             {  
                //now we know it's a new session, so we check to see if a cookie is present  
                 string cookie = Request.Headers["Cookie"];  
                 //now we determine if there is a cookie does it contains what we're looking for 
                 if ((null != cookie) && (cookie.IndexOf("ASP.NET_SessionId") >= 0))  
                 {  
                     //since it's a new session but a ASP.Net cookie exist we know  
                     //the session has expired so we need to redirect them  
                     Response.Redirect("Default.aspx?timeout=yes&success=no");  
                 }  
             }  
         }  
     }  
} 

谢谢！

（如果你需要进一步澄清，请询问）

(If you need further clarification please ask)

注：我知道，如果我重定向到不会从该的BasePage继承一个页面，将解决这个问题。但我不喜欢这样的解决方案。

Note: I know that if I redirect to a page that does not inherit from this basepage it would fix the problem. But i don't like this solution.

推荐答案

你能使用事件的Session_OnStart 在的Global.asax ？

每当一个新的会话开始这一次解雇。你可以做你重定向在那里。

This will be fired once whenever a new session begins. You can do your redirect in there.

我想虽然的关键是，你只，如果你不是已经在它重定向到主页。您可以通过只检查URL Request对象做到这一点。

The key I guess though is that you only redirect to the home page if you're not already on it. You can do this by just checking the URL in the Request object.

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