Preserve Session Variables In Web Application After Build?
Nov 15, 2010Every time I build my web application, my session variables are lost from before the build. Is there anyway to preserve session variables during the build?
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While in domain B.com:
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How can I preserve the session object between different domains ?
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In Global Page:
[code]....
IIS InProc Session Variables Randomly Not Written To Session
Nov 12, 2010There are reams of info out there about things causing InProc session to drop session objects, but that's not what's happening here. We're missing individual variables within stable InProc session objects, and are not sure whether they're not being written or being lost after a successful write. I've confirmed with WinDBG that the sessions are live and contain some, but not all, of the data written to them.
Guid g = System.Guid.NewGuid();
this.Context.Session.Add(g.ToString(), result.ImageData);
output.Write("<img src="display.aspx?id=" + g.ToString() + "">");
This code is pretty straightforward, and it works flawlessly in Test. In Production, under heavy load, though, it fails ~1% of the time. If Mr Smith visits the site and attempts to display 4 pieces of image data, 2 of them might be saved in his session and two of them be lost. The InProc session object for Mr. Smith exists. The traffic logs show he clicked 4 times, each with a different id param. But there are only 2 guids in his InProc session object, instead of 4. The 2 session objects we did capture do correspond to 2 of the id's shown in the traffic log (his 1st and 3rd clicks.) The traffic logs for his 2nd and 4th clicks, though, show a guid id that's not in his InProc session object.
Lines 1&3 of the above code obviously worked for those 2nd and 4th clicks, or he'd not have had the id in the URI for him to click. Line 2, however seems to have failed silently in some way. If any exception had been thrown, I'd expect we'd not ever have arrived at line 3. I can't see any way for the user to receive the guid id, but the session to fail to have it. The other possibility is line 2 worked successfully, but the variable later disappeared, how I cannot even imagine.
Details:
ASP.NET v3.5
IIS 6
No Web Gardening
We're running a web farm, but users constantly return to the same server. I'm researching now whether there's any way users might be slipping off to the other server.
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Dec 24, 2010Where exactly are session variables saved? Cookies? Server memory? Again where are Application variables saved?
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How To Set Cookies And Session Variables
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MVC :: Session Variables For Authentication?
Jul 30, 2010I want to password protect an area of a website by a login/registration form.
I'm using session variables to check wheter the user is logged in or not. I already have a database with users/passwords... so I thought that the membership approach wasn't an option... (correct me if I'm wrong)
in the constructor of the controller of the area I want to protect I've added the following:
[Code]....
but this throws an error:
Server Error in '/' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace or more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Line 28: this.productsRepository = productsRepository;Line 29: Line 30: if (Session["user"] == null)Line 31: RedirectToAction("List", "Products");Line 32: }
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Nov 10, 2010I am working on an asp.net mvc app.Right now I am looking for the best solution to access session variables.
Is it oke to make a static class to get session variables, like:
[Code]....
And so on for other session variables.Is it allowed to access session variables in static model classes ?
Manage One's Session Variables?
Mar 25, 2010In my .NET web app, I keep basic user info in a user session object. I also usually keep a director class in the session; which is basically just has info about whatever thing it being worked on on that screen (like a customer id).
I am trying to keep from adding a ton of sessions. I also want to make sure at any given time ONLY the sessions that are necessary are in memory.
This means I need an effective way of managing my session variables.
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Are Session Variables Case-sensitive
Mar 28, 2011I am using ASP.NET 2.0 and C#. I would like to know if the Session variables are Case-sensitive.
Is Session["StudentId"] and Session["StudentID"] considered the same.
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VS 2008 - Using Session Variables Get Corrupted
Jun 10, 2010I have a situation where my session variables seem to get corrupted. I Page_Load I am calling 2 subs. Each of them fills a GridView with data from a table. I am saving the content of each Data.DataTable into Session Variables:
Get_Summary_Last_Completed_Shift()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable1") = mySqlDataTable
GridView1.DataSource = mySqlDataTable
GridView1.DataBind()
Code:
Get_Petroleum_Disbursement()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable5") = mySqlDataTable
GridView5.DataSource = mySqlDataTable
GridView5.DataBind()
After I call the 1st sub and I debug the session variable "mySqlDataTable1" contains all the data from the table. After I call the 2nd sub and I debug the session variable "mySqlDataTable1" has been changed and contains a mix of data from the 2 tables.
Session.State And Passing Variables?
Oct 15, 2010I'm trying to pass some variables from one page to another via the session state and then post those variables to labels on page 2. When I try to write the code for my labels on page2, I get an error of "Declaration expected"Here is my code from that page:
Partial Class Default2
Inherits System.Web.UI.Page
Dim firstname As String = CType(Session.Item("FirstName"), String)
[code]...
Am I missing a page_load event handler or what am I missing?
Implementing Security With Session Variables?
May 5, 2010I am doing web based projects in dotnet. Currently I am implementing security using session variables. I keep current user id and user type in session and authenticate user from these session variables (say Session["UserId"],Session["UserName"] and Session["UserType"]).
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Session Variables Inside Of SharePoint?
Oct 26, 2010I am having with asp.net app inside of SharePoint (as page viewer).
When the Default page is loaded, it works fine. However, when I try to go to next page, i am getting a null reference exception. It looks like my session variables are becoming null on the next page (even though I set them on the previous page). Here are a couple things that I tried to diagnose the problem.
I try on the couple other computers; some work fine, some still don'ts. In the property of the page viewer inside of the SharePoint, after I click on the "Test link", it started to work fine until the session expired (on the computer didn't work initially).
I am not sure if there are settings that I need to check on the browser or the app server.