Way To Make Refresh Page Before The Session Expires
Aug 29, 2010
i want your opinion about the
Response.AddHeader("Refresh", Convert.ToString((Session.Timeout * 60) - 20))that i have seen in some sites that is used for refresh the page every time a little bit before the session expires
my web app doesn't use authorization in web.config, but i want to detect when a session has expired and redirect to the home page.I have searched and found solutions that rely on the web app using authorization. Other solutions have implemented a user control to drop in every page.Obviosly i don't want to manually check for null on every session variable on every event of the web app, so i want the app to do it automatically.
I am not sure what the event is called but I'm trying to get it so if your not logged in you can't manually type the page name in the bar at the top. I need to find a way so it will always redirect you to the login page if you haven't signed in.
Also the same goes for sessions, at the moment when my session time runs out my website fails as there is alot linked to sessions from my database, how do I get it so when a session expires upon trying to navigate inside the website you are passed back to the login page?
I am using a timer in the master page of my web site in order to keep a 'status bar' up to date with all sorts of information.The issue is that the whole point of session expiry goes to waste, because a postback is always being made (although asynchronic) to the server.
How can i still expire the session after a wanted period of time?
I cache information about the currently logged in user in the session. This info lazy loads whenever a CurrentUser property on my global application class is used. It does this by calling GetUser() on my custom implementation of MembershipProvider, which either loads the user up from the session, or loads the user from the DB and throws the user object in the session.
How should I handle this scenario?
User logs in. Administrator deletes user (or deactivates...the point is they can't log in any more). User's session expires. User navigates to a page or makes a request, or whatever.
Currently if this scenario occurs, NullReferenceExceptions are thrown all over the place, because the ASP .NET framework calls GetUser() which returns nothing because it can't find the user in the database (and there's nothing in the session because it expired).
I have a simple ASP.NET 4 site. I am using Forms Authentication. I have Session timeout set to 20 minutes. Also when the user authenticates I set the AuthenticationTicket to expire in 20 minutes. So normally everything works fine. If there is more than 20 minutes of inactivity and the user requests a page on the site they are redirected back to the Login page as I would expect.
However, let's say that the user is on a page that contains a form. Then they wait 25 minutes. Then they go to submit the form. Instead of being redirected back to the Login page, the site attempts the postback and I immediately get errors because there is code in the postback that attempts to get information out of Session.
It seems like ASP.NET does not redirect back to Login on postback if the AuthenticationTicket and Session has expired. How can I handle this? I hope I don't have to write special code on each page.
Page2 having Button 2 and an ascx control UC1. UC1 has a Button 3. Page2 is a modal dialog ( window.showModalDialog )
on Click of Button1 open Page2(modal dialog).
Page2 has UC1. UC1 has a button B3. On click of B3,instead of directly going to B3_click event, another post back happens. Thereafter opens login.aspx in another browser ( It is losing Session containing UserDetails as well as other session details).
now even If I continue entering Username and password, page2 reloads again in the new browser.
I am totally lost.
1) I do not know why UC1 button click makes another postback and thereafter opens up into another page losing all the sessions!!
I want to retain teh sessions till i go back to page1.
How can I refresh the aspx page in very cetain timing? Actually I need to develop someting it just likes this ASP.Net forum web site where the page will auto refresh in certain timing to keep the session active.
I have a gridView and on the DataBound event I am assigning a Session variable from one of the gridview results. This session is then used to determine if certain nodes in a menu are visible. One problem is that when the session variable is assigned, the menu is not updating, until either I refresh the page manully in the browser or move to another page.
I simply want to display a message on the login page when the user is automatically redirected there after requesting a page that they were logged in for but their session has now expired. So essentially if the user was working but stepped away for a lunch break without logging out I want the system to tell them why they were sent back to the login page.
Something like "You have been idle for too long so you must log back in".
This has to be easy I am just running into a wall here. I thought about getting the original ticket and reading the expiration date but I'm a little lost.
In my asp.net website I am creating a session upon user login and I would like to perform some operations in the database just before this session will expire.I am having problem in determining where should I write code and how will I know the session is going to expire.
I am not sure if 'session_end' event of 'Global.asax' suits my requirements as the session I want to check is created manually(not a browser instance).
On localhost works well. On the hosting server expires very quickly. Sometimes after a minute, and sometimes after a few minutes.
I tried mode="StateServer" and mode="SQLServer", but first works the same, other doesn't work. The next problem is that End_Session in global.asax doesn't executes if mode is not InProc. And I need this.
How could I achive that session expires only when browser is closed or other url is typed. Just setting timeout doesn't work.
I am developing an application using Visual Studio 2010 and SQLServer 2008. My application has two pages and the first page contains a GridView with all the records "User Administration" and when user click on any Username (template field ->linkbutton) I read the USERID like this.
which takes it to the Data Entry page where user updates the information and save the data.
The problem i am facing is that when I hit the browser REFRESH button couple of times the session variables looses the value which is trouble for me as I am using Session Variables for different purposes.
Page (Picture.aspx) using a repeater displays the image ---> http://postimage.org/image/iyl7rv1g/After click on link Delete opens a new page (DeletePicture.aspx) andimages in the database set to passive stateand this page(DeletePicture) closes.How to make the images on page (Picture.aspx) refresh and passive image is not visible.
I have many controls like dropdown, radiobuttonlist, etc on my page and I put all these controls inside the update panel so that the page doesn't look to be posting back when something is selected. Now the working on the page is very smooth. But the session object isn't getting refreshed even if I postback to the server and as a result even if the users are working on the page they are being sent to the login screen after 20 mins.
Is there anyway where I could put all the controls in update panel and still refresh the session after any postback(dropdown selection)
I have created a demo application to read data from the CSV and after read the data from the csv file there is a button to save all the CSV loaded data in the database. When i load the large CSV (2MB) file . after load all the data from the file i will save all the data in datatable and store in view state.
when i click on another Link the page doesn't work and page become expires. Where is the problem.
Its simple doing read CSV file .. file stream closed. store all the csv data in view state. and click on the another link save into the database. but click save database button page expire.