I have some code in my page load event where I just want to fire once when the user opens the Browser. The only issue is if you open a new tab with the same website the session variable does not reset. Is there a way to reset the session variable when you open a new tab or do you have to take the whole web browser down for it to clear the session variable.
In Global Page:
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I use some session variables to get the job done(shopping cart, etc) but it is not stable..manytimes I get no items in session object and other times(refreshing the page) I get missing data...I downloaded the entire site code to my local pc and debugged it and run it succesfully without any session data missing...When I run it in the server, I get bad session again: no products in shopping cart or products with missing quantities...
The same website runs smoothly in our production server too....The problem is with our development server...
I added the following code to global.asax to load up several session variable when a session starts. I'm assuming that when a page goes to use the variable that I should be
1) checking at the page level that the value is valid not 0 when its not expected to be 0, not a zero-length string when its expected to have a length
2) have code at the page level that sets the values if the values have not been set as when the Session timeout, ideally putting the code in a class derived from Page and then deriving all of my pages from the new class so that the code does not have to be repeated in every page
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I have been spending a better part of a week trying to track down why I am not able to clear all session variables in a web app (vs 2010, vb.net). What I have tracked it down to is that when I remove or abandon sessions that my html pages or codebehind access, it works, but for some reason in any of my class files where I use "Public Shared strConnection as String = HttpContext.Current.Session("strConnection").ToString" to access a session variable, it finds the old one and not the current one. I have to wait for it to time out, go in again, and it will find the new one.
I do not use Linq, and there is only one place in the whole web app that I place the connection string in a variable whcih is when a person logs in. It points them to the correct database. The sqlconnection is set for all of my listviews in Page_Init to make sure that they aren't using any session variable that they create on their own. Interestingly enough that if I use debug to go in each time, exit debug, enter debug again trying to access a different database, it works correct each time. I assume that debug is correctly killing the session variable for the classes for me.
I am new to asp.net Can you please guide me what is session and session variables ? Please I don't need a comparision of asp session and asp.net session because I don't know anything about asp. I have saw many articles on types of session as well. But still I cant understand exectly what is session and what are session variables in asp.net ?
View 9 RepliesWe have a common problem with tabbed browsing in Internet Explorer is that the session state is shared between the tabs.
Due to this our user can face many issues like
1) Suppose user has opened a .aspx page for (clientId=1) and editing it in one tab and at the same time user is editing another client(ClientID=2). And both are using same in session.
Due to the session sharing when page will auto refresh the first tab with (clientId=1) will see the data of clientId=2.
Its clear that the session is shared between the tabs.
I have also implemented the ASP.NET 2.0 offered solution by way of the following config setting
<sessionState mode="InProc" cookieless="UseUri"></sessionState>
But still our users are facing this issue. I am looking for solution to disabled the Tab programaticaly and also i wanted to know how to clear the cache programatically.
How to get unique session id that generated same for all browser tabs and different and always unique when we close and open new browser in asp.net code.
View 2 RepliesI've been building ASP.Net applications for a few years now but most of my work is focused on business apps that'll be used by less than 50 people, running on an Intranet.
Today I had a conversation with a colleague who is thinking of using ASP.Net to build a commercial application that could potentially be used by 1 Million users. He wanted to know about the scalability of ASP.Net apps and how much (or how little) of stateful objects likes Session variables he could use and still keep his app scalable. To this I did not have an answer, which is why I'm turning to the community.
Striving to keep your bias to a minimum, if you were going to build an ASP.Net application for 1 Million users that provided a rich UI experience, what parts of Microsoft's technologies to keep track of state would you avoid or keep to a minimum?
I am working on an asp.net website using C#. The site deals with orders and therefore order lines. I would like to store the order in memory whilst it is being populated (with order lines) and once it gets submitted write it to a database.
The above logic has been implemented, but sometimes when accessing session state or storing a variable in it information gets lost. Take note that the web server is running a dual-core processor. I am also using the in proc session state server.
I tried changing over to using the out proc session state server (asp.net state service), but it requires serialization. Since the order and orderlines are actually linq to sql classes, the entitysets and entityref's fail to serialize.
Does anyone know the reason why session state loses information occasionally and possibly how to eliminate the problem?
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.
We are working in a web application using Session variables to store the clients ID to operate with them in all app (making orders, reports, etc....) but randomly users get the client ID of another user in any moment using the application.
I have tried to solve it in a first step adding to system.web section in the web.config file this:
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ASP.NET State Service is running in server normally, It began run just before this last change, but we have not solved the problem either with this solution.
The server is Windows Server 2003 Standard Edition SP2 32bits running IIS 6.0, and the application is made with Framework 2.0
There are a couple of user's experiences session variable loss after they've clicked a confirm button and their information is email via a relay hosting server. Below, I commented exactly where the session variables get lost.
What could be causing the session variable loss? So far, this only happens to a few users.
Part of the email that gets sent out:
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Web config file:
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How to keep the session variables even after closing the browser?
Everytime I close the browser, I lose all the session variables.
Is there any way to keep them?
How can I retain the value of variables that I fill from CodeBehind throughout the session? (C#). For example, I do a LINQ query from the log in "on-Click" button event. The query produces a bunch of data about the user that I want to access throughout the session on additional ASP pages. I know that I can pass a large query string but I suspect that there is a better way. Here's a specific...
from the db function I product: COS=2 (class of service). Throughout the session, I test for COS and display appropriate pages. Assume that the LINQ query is accomplished in the CodeBehind attached to the "loginButton" within the "login.aspx" page.
I am using Session ID Manager in all the pages of the website, but I am losing session variables in between the pages. what should I do to save the values of session variables.
Anoop
We are in the process of refactoring from cf to .net, so, I am working on the Login page and converting it from cf to .net. So, when I am autheticated and enter into our website, I need to redirect it to a cfm page (just temporary, since we will be refactoring that also eventually).
So, I am autheticated (using CustomMembership Provider model for sql server) and then when I redirect to the cfm, the app.cfm should validate the .net session variables. Here is where i am stuck:
I have the .net session variables in the aspx side:something like Session["UserId"].ToString() = Value from a login txt box (also authenticated against data in the database)
Session["UserName"].ToString() = Value from the db corresponding to the User Name entered in the text box.
So, now I have all the session variables in the .net side. Now, how do I retreive these .net session in the cf side? Any small peice of code to retrive the asp.net session variable in the application.cfm side would be great.
if using session variables to store and retrieve information is a bad practice? Let me give you some background:
I am developing a site for a friend of mine, and his site is hosted by Go-Daddy. My feeling is that Go-Daddy is not the best place to host a .NET site, but it is what it is.
After the first version of the site was published and people started using it, users immediately started having session time-out problems and null exceptions when referencing session variables. I researched everything I could and tried everything I could think to do, but I just could not correct the issue.
Then, while doing some testing, I discovered that users weren't individually timing-out and losing their session information, but, rather, all users where timing out at exactly the same time, regardless of how long they had been logged in or what they were doing. So, for whatever reason, the server was just dumping all sessions at random intervals.
At this point I needed to move on with the project so I added a number of cookies to replace the session variables, and everything began working properly.
in a hosted environment, should I avoid using session variables? Is it as problamatic as my research and experience would indicate, or is this simply due to the fact that I am working with a poor hosting company in Go-Daddy?
i have 2 different sites under different subdomains.
www.company.com
and e-order.company.com
i want to have SSO so i have tried to make a global cookie.
my question is :does the global cookie keeps the session variables when i am going from one site to another?
if not how can i pass a session variable for ex. session("userName") from one site to the other on redirect?
I have session variable that is created in EditPlaylist.aspx. Edit.aspx is loading EditPlaylist.aspx in an iframe.
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I am using Windows xp/ .net 2.0 / vs 2005 for development environment. My session data (not all session data) are getting lost when I try to navigate between pages through window.open but the same is working perfectly in proc mode but in state server / sql server mode I am facing the problem.
View 9 Replies1) As per my understanding, Session variables like HashTable and another variable in Session must be initialized. The best place as per my knowledge is Sesson_Start Event. But at some post its written that we must do that in Application_Start. I think it is not true, as that could lead to problems with different user sessions. Reference is this [URL] Let me know about the concept.
2) Storing variables like string, boolean and etc in Session is slower than storing objects in Session like HashTable, Arrays etc.. becuase they dont require boxing and unboxing. Is that true? Reference. [URL]
I created a virtual directory for new .ASPX pages added to existing ASP website. I found that the new .ASPX pages are not able to access the session variables created by the existing .ASP pages (outside the virtual directory).
View 3 RepliesI have a web application running on IIS 7 on a Windows 7 machine. The app pool is configured for .Net 4, 32 bit enabled, Integrated Pipeline.
Everything seems to be fine with the app until I first create a session variable in one of my asmx pages.
Once I've created the session variable the handling of subsequent http requests sometimes takes upwards of 30 after the browser has posted to my asmx page before the function is actually invoked. I've been looking all over my configuration settings and searching the web and still have no idea what could be going wrong here.
The method that sets the session variable looks something like this:
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I have 4 webpages. In those pages, i am using session variables,viewstates,cookies. I am passing session variables,viewstates to different pages. Now the problem is sometimes i am getting the old cookie values or session values. I want to clear all these things when i close the browser or if i open a new tab of browser.
View 10 RepliesSince I changed from statemode"inproc" to stateserver I canīt se changes done to de session vaiable in a thread. I can only see the first value set to the session variable!
View 6 Replies