I have hosted my web forms files and reports files two different IIS instance in same server. When user login i keep username inside session variable. According to that session variable i checking roles each web forms page load event. i share session variable between two difereent IIS instance in same server?
View 1 RepliesI've recently been tasked with fixing a rather nasty bug resulting from the misuse of session state. We have an asp.net web application that runs on a single sever using inproc session state. The basic design is that a typed dataset is loaded from the database and stored in session state using a common session variable name like Session["dataset"] = dataset. After the data is stored in the session the user edits the data, dataset is retrieved from the session updated and sent to the database for updating. This type of data editingstoring is used across multiple webforms that basically do the same thing. All is good until a user tries to launch a second instance of the application and data stored within the session variable can get mixed up. Here are the possible fixes that I've been able to find
Set sessionState cookieless="false" (every new instance gets a unique session id) PROS - easiest solution, almost no code changes needed CONS - guid in url, user can edit guid, guid can be copied Use a custom session key for every instance (pass a session key around and combine it the "dataset" + session key name so that each instance has a unique session variable) PROS - no guid in url CONS - most amount of code changes, possibly fragile Remove the session variable (Load the dataset from the database a second time for editing) PROS- frees up server resources, no longer dependent upon session state CONS - performance hit, high amount of code changes
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?
With-in my Web App, I would like to be able to create a completely new instance of Internet Explorer, keeping the original functioning as well. No problem doing a Response.Redirect or server.transfer to a new web page, but what I am trying to do here is to open a completely new explorer window. I would like to do so transferring a few session variables to it.
View 5 RepliesShare session using server
View 3 RepliesI have two exactly the same web sites hosted in two different machines under IIS 7.5.
ASP.NET state service is running on my machine and the web.config is updated in both sites with the following code:
<sessionState mode="StateServer" stateConnectionString="tcpip=192.168.1.77:42424" cookieless="false" timeout="120"/>
The allow remote connection is set to 1 in registry in order for the second web site to access the state server.Both web sites have the same machine key:
<machineKey validationKey="7CB8DF6872FB6B35DECD3A8F55582350FEE1FAB9BE6B930216056C1B5BA69A4C5777B3125A42C4AECB4419D43EC12F168FD1BB887469798093C3CAA2427B2B89"[code]....
Additionally both sites are configured in IIS to have the same Identifier.What I want to do is that both these sites share the same session data for example being able to do the following:
// At web site 1:
Session["key"] = "value"[code]....
The problem is that I can't manage to accomplish this test and really can't understand what I am doing wrong.
I have a problem,related to sharing variable between 2 pages.i am using session for it but it does not work,below is my code
firstpage.aspx;
protectedvoid LinkButton7_Click(object sender, EventArgs e){
Session["catagory"] = LinkButton7.Text;
Response.Redirect("secondpage.aspx");
}
secondpage.aspx;
protected
void Page_Load(object sender, EventArgs e) {
Class1.connection();
// string catagory = Convert.ToString( Request.QueryString["catagory"]);// string month1 = Request.QueryString["monthtest"];
[Code] ....
But on secondpage.aspx i am not able to access value of session["catagory"] that means it have stored null value automatically. How I will access it....
I had a .net 4.0 vb.net page that was setting session variable and setting a hidden form value to the same value. It was a paypal buy now button. When the user selects it, they are sent to paypal for payment. If the transaction is good, they are redirected back to another page on my site and a hidden value is sent back with the invoice I originally sent them. They are sending the form value, but my session variable does not available.
From the user point of view it's all seamless.. Is it the same session? And should my session variable be available?
i have a class that must have only one instance, so i implemented the singleton pattern but with static every user that open the website page loads the data of the first user that called the class. How can i have a singleton pattern but with only one class instance for user?
View 3 RepliesI've used the table at the top of this article as a reference. I have three questions:
1 - Can multiple users (from different physical locations) ever share an HttpApplication instance? If so, does this happen by default?
2 - Can multiple users (from different physical locations) ever share an HttpApplicationState instance? If so, does this happen by default?
3 - Can multiple users of an ASP.NET application ever share a singleton instance or a static variable value? If so, does this happen by default?
We recently migrated a web app from one Prod server (Prod 1) to another server (Prod 2). There is a session varialbe checked inside the page load event of the default master page. I have enabled session state both in web.config as well inside the pagedirective. The compilation went through without any issue. The web app is also running just fine on the server but the log file keeps logging a warning message. There is no run time error.
"System.Web.HttpException: Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration><system.web><httpModules> section in the application configuration."Any idea why this is happening on one server vs other?
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.
View 11 RepliesIn the VS2005 environment, when I test my session to make sure the page redirects to the main page (itself) if the session is null, it works. There is no error.
The function I use for this is:
[code]....
However, when it is in the production environment in IIS 6.0, when the session has timed out, and I then do a postback by doing some slider control, I see the page reload but immediately thereafter, it throws a Server Error exception of : Object reference not set to an instance of object.
Looking at the stack trace, the event occured:
AJAXEnabledWebApplication1._Default.Slider1_TextChanged(Object sender, EventArgs e)
however, why is it that the Slider1_TextChanged event fired even even after during page_load, the page was told to do a response.direct ?? shouldn't the entire page have gone through a full-page refresh life cycle ? why did it continue on to attempt to raise the Slider1_TextChanged event?
I want to use session variable for ConnectionStrings in SqlDataSource, so the same script can be used with different users with different databases. My SqlDatasource code is :
<asp:SqlDataSource
runat="server"
ID="sdsAvdeling"
SelectCommand="SELECT
* FROM [Avdeling] ORDER BY [Avdeling]"
ConnectionString="<%$
ConnectionStrings:UtstyrConnectionString %>">
</asp:SqlDataSource>
In Page_load, I assign the connectionstring for the SqlDataSource like:
sdsAvdeling.ConnectionString = Session["ConString"].ToString();
where
Session["ConString"]
is assign to "UtstyrConnectionString" when the the user logs in. When running the script, I get the following error: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.
I would like to run a SQL query on the codebehind VB page that will also set a value from that query to a Session variable. Also, this needs to be done on the Page_Load.
Example:
[Code]....
This should be really simple and I am new to asp development.
I am using ASP log in controls..when user logs in, I am storing the userid in a session variable. On this another page, I want to put the previously stored session variable value into a table using Insert statement.
in my sqldatasource..here is the code..
InsertCommand="INSERT INTO tblMain(PatientId, UserId, IncAge, IncDeNovo, IncAnginaIschemia, IncNative, IncLesions, IncStudyConform, IncStenosis) VALUES (@PatientId, @UserId, @IncAge, @IncDeNovo, @IncAnginaIschemia, @IncNative, @IncLesions, @IncStudyConform,
@IncStenosis)">
i am working on add to basket pagei have three browser in my pc when i use chrome browser and Add Prodcut into basket with session .
then how it will show on every browser untill session expire.?
I have a problem with all multiple tab browsers due to session object. I have a requirement that whenever user opens a new browser I need to show different values, so I thought of using Session as in IE 6 every browser creates a new session. But all other multiple tab browsers IE 8 and FF shares the session(If user has already open the browser and try to open different browser). How can I create new session whenever user opens a new browser window. My application is basically in ASP.NET and server side we have C#.
View 1 RepliesI have two urls that are supposed to lead to the same actual folder.
I can't do a redirect because the websites are built so they question the URL and perform accordingly.
So I built two application in the IIS (I tried using a virtual directory for one of them, but I kept crashing on the web.config can not be read). Everything works perfectly except the Application variables which are different between the two addresses. (Specificly I'm counting the number of current users logged on).
I am having trouble getting a SQL query to post its results to a Session variable. I am close, but no success thus far. Here is what I have:
[Code]....
However, I keep getting this error when I click to a new page that is using this "PracticeID" Session variable: No mapping exists from object type System.Data.SqlClient.SqlCommand to a known managed provider native type.
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).
can we grab a global variable or Session or View State variable in the javascript or using jquery?
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.
What would be the proper syntax in ASP.NEt 3.5 C# to assign a TextBox value to a temporary or session variable to be manipulated (added, subtracted, multiplied, divided) at different points in the application? I want to add a decimal number to this variable in almost every instance as well.
View 3 RepliesIm using asp.net website with WCF service, having wsHttpBinding,Aspnet compatibility enabled, specified as Sessionmode -allowed, service behavior- isinitiated and client session cookie enabled. Its looking like Asp.Net session object and WCF Session( HTTPContext.Current.Session) work independently. How can I share Asp.net Session value to WCF Session and vise versa.
View 3 Replies