Web Forms :: Detect All Logged In Users In Web Application By Session Variable
Jan 28, 2011
I'm wondering if it's possible to perhaps set something up in the global.asx file or something that will build a list of all currently active user sessions that I can then use to display to a logged in user, who else is currently logged in.
Currently I store my userId's in a session variable Session["IsLoggedIn"], so basically i want to build an global array of some sort that will store all these active userId's.
Let me know if this is possible, or who i would go about accomplishing this sort of thing. BTW, I'm not using asp.net's built in membership thing for login accounts.
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May 17, 2010
I have a web application which uses a session variable to store the logged in userid. If no user is logged in, of course this variable will be empty and the contents displayed on my website are meant for guests. If there is a user logged in, the user specific controls/access/links will then be a displayed.
I am now having issues with my hosting where on shared application pool, the worker recycle is triggered every 90 minutes, this will clear sessions causing all my users to be logged out. I opted for a dedicated application pool, which got worse because I am only allocated 50MB memory limit and if this is reached, the worker recycle is triggered and I lose my sessions again. I have tried as much as possible optimization techniques, e.g. dispose where possible, close connections, disable viewstate for static controls etc but my memory per instance keeps building up from page to page without any signs of improvement. I don't use loops nor store huge objects like bitmaps etc but my sessions are now gone even faster than 90 minutes in shared application pool before.
I have considered using SQL Session State but there isn't a simple guide on using this with MySQL. I am getting desperate and considering using a public variable, a string as a replacement to store logged in user id instead of in a session variable. I am pretty sure this will solve my issue with sessions being recycled but are there any negative consequences of doing this? One problem I can think of is if the user closes the browser, the system will never know that the user is now logged out and this public variable should be nothing. In this scenario, will the GC eventually clear this abandoned public variable.
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Dec 30, 2010
I am attempting to pass a session var(dropdownlist choice) to my autocomplete.asmx to incorporate it into my sql select statement. Is this do-able?
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Jun 1, 2010
Can anyone tell me how to detect when a users session has exipred in asp? I want to redirect users to a logged out page once the session has expired.
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Nov 1, 2010
I have a web application with a login form. A user enters a user name and password. If they exist in the database the user is authenticated using these two lines:
[Code]....
The problem is that when a user logs in at first he is logged in as himself. When navigating on the web application for a while the user assumes the identity of another logged in user. This happens all the time. In my web.config the authentication mode looks like this:
[Code]....
The site does not use ASP.NET session variables. Instead each page initializes a Singleton class, which stores itself in a static class variable, always accessing the users data already read from the database. The Singleton implementation is:
[Code]....
Could the problem with assuming another logged in users "session" be related to static classes in my application or a Forms Authentication configuration or a configuration in IIS (e.g. is it possible for users to have their own process?).
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Dec 6, 2010
It has been reported to me that a user logs into our web application and after supplying the correct credentials for themselves, are taken to the next page where they see a different customer's name at the top of the screen.
All the data at the top of our web pages is stored in session variables. The login page executes a Session.Clear statement in the Page_Load event. The user enters a username and password which is validated against our supplied database via an SQL statement. Once the user is proven to be valid, session variables are set to hold the Customer's name, as well as a few other details about them.
This is a fairly simple application, consisting of only of about 10 different pages. I am only tracking about 5 session variables per user. The session variables are initialized to either 0 or "" in the global.asax file in the Session_start routine. Upon clicking a "log out" link on any page, the login page is displayed again (executing the Session.Clear statement).
We have roughly 400 users logging into this site about once or twice a week each. The site is hosted on a server running Windows Server 2008 R2 Standard and IIS 7.
Of all 400 users, this strange session behavior has only been reported to me on a couple of occasions.
I have tried to duplicate this behavior and have not been able to. Has anyone ever heard of this? Where should I be checking for solutions? I have already checked my SQL statement and database for user authentication to make sure it is working correctly.
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Dec 26, 2010
i want to generate the new sessionid in the same httpcontext once the user is successfully authenticated.so, how can i do that ? ( please dont ask why do you want it, i got such kind of requirement).
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Aug 20, 2010
it possible to use an application event to save the username in a session variable? I would like to do something like this:
private void ContextOnBeginRequest(object sender, EventArgs eventArgs){
if (_context.Request.IsAuthenticated)
_context.Session["ID"] = _context.User.Identity.Name;
}
However in the above code I get an error saying that Session state is not available.
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Apr 27, 2010
I Want To Use A Session Variable From One Application to Another Application. Is That Possible in ASP.NET 3.5 Or Greater To Use Session Variables As i Required. My Both Applications Host In Same IIS Server.
Me To Sort Out This Prob. ASAP
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Dec 28, 2010
i am redirecting from a 3rd party site to my application where i am getting the responses of credit card no,cvv no and exp date into my application.but the session data that had come from the previous page is being lost.i have tried using application instead of session and its working fine will there be any disadvantage of using application over session
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Oct 13, 2010
I have a web application using window authentication. There are a search page and a edit page in the application. In search page, user can enter some search criterias in the textboxes and the search result will be displayed in the gridview by clicking the "Search" button. User can select any row from the gridview and it will take him to the edit page. In the edit page, there is a "Back" button to take the user back to the search page. I use session variables to remember what the search criterias the user entered in the textboxes and what page number the user was in the gridview. So when the user goes back to the search page, the textboxes are pre-populated with the search criterias and the gridview is displayed in the correct page number.
The problem is: If user1 opened one browser window and did a search using search criterias1, then user1 opened a 2nd browser window and did a search using search criterias2. When the user1 went back to the search page from the edit page using the first browser window, all the textboxes and page numbers are from the 2nd browser window, instead of the 1st one. Can anyone explain this problem to me and how to prevent it? It will be helpful too if you can give me some links about the similar problem. I am thinking if the same user logged on two different machines and did the search on each machine, what is the result?
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Nov 28, 2010
When a user logs in, they are redireced to files within members folder. When a user happens to log in and gets redireced, there is the chance they will retype the default page address and go to the homepage, which is accessable to everyone. The issue is, the log in status control shows "Logout". how do I check if a user accesses the homepage, if they are logged in and if they are send them elsewhere. I've tried different codes, but not getting the result. Here is one code I tried...
[Code]....
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Nov 22, 2010
Currently in an .aspx file, I am storing a value (filename that was created in that session) in an hidden text box. When the user clicks on the "Print" labeled Hyperlink control, it opens the file that was stored in the hidden text box control. But when the user goes to different screen (in the same session), I loose the filename value that is stored in the hidden text box control. So I would like to store the filename variable in a session variable. So that if the user leaves this .aspx file and comes back to this .aspx file I can load the value into the hidden text box from the session variable.
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Mar 1, 2011
I developed a website in asp.net,c# and SQL server2000. In each and every page I want to show the logged in users name with green color text.
I used Forms authentication.
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May 7, 2015
I want to know what the members who are online at my site and I can identify them.Do you have an article that identifies registered online users like your site.
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Jan 24, 2016
I want to know hom many users that uses may website (they logged in in current time)
or how many active seesions are in my site in asp.net using C# ?
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Jun 16, 2010
For some reason my users are logged out of the system every 10-15 minutes or so...regardless of the configuration below....am I missing something?
[code]....
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Jul 16, 2010
If I have a generic public asp.net website, I want to know who is visting my website (I know how to get that), but more importantly, I want to know what company the user is from (is this a microsoft employee viewing my website, or a Coca Cola employee viewing my site or is this person using a home computer to view my site). How can I determine the computers domain name? Hope this is making sense. Update: At most companies, I have seen the company name included as the "Full Computer Name" or the Domain value in "Computer name, domain and workgroup settings". Thats what I am looking to access.
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May 7, 2015
I have below code to display "list of all the online users" inside listBox using Membership function.
Code:
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
MembershipUserCollection allUser = Membership.GetAllUsers(); // to get all the users
List<MembershipUser> onlineUsers = new List<MembershipUser>(); //creating list of online users
foreach (MembershipUser user in allUser)
[Code] ....
I want to remove that user from the list of online users, who himself has logged in. Example: if I had logged-in with UserName: Admin, then this Admin should not show to me in the list of "online users"
Tried below Code but not working:
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
MembershipUserCollection allUser = Membership.GetAllUsers(); // to get all the users
List<MembershipUser> onlineUsers = new List<MembershipUser>(); //creating list of online users
MembershipUser m_user = Membership.GetUser(); //to get self logged-in user
[Code] ....
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Dec 11, 2010
How can I detect the country name of our users list in asp.net membership provider. In addition, the country name which can be found by IP address.
Is there any built in functionality within ASP.net membership provider? If yes then it is good and if not then how can I implement this?
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Jan 2, 2011
I have a Asp Mvc 2 site using forms authentication. When I run it locally I can log in and stay logged in indefinitely.
However when I put it on the server I seem to only stay logged in for a few minutes and then seems to be logged out. I have looked at the cookies and there are 2 which seem relevant:
.ASPXAUTH which is a session cookie .ASPXANONYMOUS which expires in 3 months.
When I refresh the page the cookies stay the same until I get logged out, when I seem to get a new .ASPXANONYMOUS cookie, but the .ASPXAUTH seems to be the same. It seems that I might be able to stay logged in until I do something after a certain amount of time. If I submit a form as soon as I am logged in then it works ok, but if I keep submitting data again and again then after a minute or so, one of the submits will happen as a logged out user and not as the user who was logged in, which all the other submits worked as. What might cause this behaviour and how can I track down what is different & change it so that I can stay logged in indefinitely?
its a single server, but after some more investigation and searching the likely candidate seems to be that I am using more than 100mb on the server and the application pool is getting recycled. I suppose now i need to know How can I check how much memory I'm using. What advice there is to reduce that.
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Mar 8, 2011
I can get the logged in username from membership system:
// Get user details
var user = Membership.GetUser();
IsLoggedIn = (user != null);
But how do I get things like their avatar, user ID and the rest?
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Feb 10, 2011
I know how to identify the current user during a specific browsing session and can thus control the data, etc, made visible to that individual user. I also know how to find out how many users logged in within the recent past, using:
Membership.GetNumberOfUsersOnline()
.... which I believe calculates the number of users who have logged in within the past 15 minutes. However, I would like to know if there is any way to identify all the users who are logged in at a point in time. Is this possible?
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Mar 8, 2011
I am using ASP.Net Forms based security with the login control. On my site a user will make a number of selections that will be written to a database. Is their a unique user id that I can get from the AspNetSqlProvider that I can use to id users in my database? When a user logs back in after being away I want to be able to retireve the users information using this id.
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Apr 22, 2010
I'm creating a ASP MVC application. And because of the complex authorization i'm trying to build my own login system. (So i'm not using asp membership providers, and related classes).Now i'm able to create new accounts in the database with hashed passwords.But how do i keep track that a user is logged in.Is generating a long random number and putting this with the userID in the database and cookie enough?
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