State Management :: Session Expires On File Delete?

Sep 14, 2010

I am trying to delete Files and Directory through ASP.NET3.5 (C#)web application.

But as soon as DirectoryFile is deleted It automatically redirects me to Login Page.

It means I am lossing my session on deleting File/Directory.

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State Management :: Timer - Session Never Expires?

May 2, 2010

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?

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State Management :: Redirect If Session Expires?

Jan 7, 2011

i have a website and i know that the session expires and it gives me instance of object not set error.

I have a masterpage could i do it in there on page_load?

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State Management :: Session Expires Very Quick On Hosting Server?

Feb 6, 2011

I have this setting in web config for session.


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.

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State Management :: Redirecting To Home Page When Session Expires?

Oct 14, 2010

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.

<sessionState timeout="120"></sessionState>
<authentication mode="Forms">
<forms name="myappCookie" loginUrl="~/index.aspx" timeout="120"/>

doesn't work for me since i don't have allow or deny settings, since my app doesn't need authentication.

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State Management :: Session Expires After Every 4 - 5 Minutes - Increase Idle Timeout

Mar 3, 2011

I'm facing a great problem in session. My session expires after every 4-5 minutes. Firstly I checked my web hosting settings. I increased session timeout to 50000. In my web.config I wrote :


Also Locally it expires withing 5 minutes. Secondly can I also increase idle timeout.

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State Management :: After Reading File Page Expires When Click On Another Page?

Jan 5, 2011

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.

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State Management :: How To Check Time In Background And Then Delete Session

May 6, 2010

I am writing a chat application, in which a chat starts in a chat room. Now, i want this room active only for a certain amount of time and not more. i.e 1 hour etc. So, to check the time constantly what and how should i write something in the background, so that when the time is over, the sessions of all the users logged in at that chat room get destroyed. And the users are again redirected to the login page. e.g The chat has been setup from 3 to 4 pm. At 3.55 everybody should be given a popup that the chat will end in 5 mins. And at 4 everybodys session should be destroyed and they should be redirected to the login page.

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State Management :: Losing Session State In Global.asax File?

Feb 2, 2011

I am trying to set a session variable in the global.asax file and keep running into the problem that the Session is null.

I am running my application in VS2008 and using 3.51.

Here is my code:

1. In my web.config file I have enabled the session state and added the following line;


2. In the Session_Start procedure in the Global.asax file I set the session variable to a default value.


My problem seems to be that when the Application_Error procedure is executed the session state is lost.

Does anyone know why the session state isn't available in the Global.asax file.

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State Management :: Session State In ASHX File?

Sep 21, 2010

I have been trying unsuccessfully to retrieve a Session varaible from within an ASHX file that i'm using to build an XML file.

What I am trying to achieve is quite simple really.My ASHX file is used to dynamically build an XML file so that I can then bind it to a TreeView control later on. However the dynamic part isn't quite working because the ID that I need from the session seems to not be passed into the ASHX file.

I have tried using the following methods to do this:

1) Include interfaces IRequiresSessionState and IReadOnlySessionState

2) Tried accessing the value like this: Session["ID"] or context.Session["ID"] or HttpContext.Current.Session["ID"]

I am setting the Session variable in the MasterPage's code behind.

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State Management :: Set The Session State In Webconfig File?

May 11, 2010

I tried to set the session state in my webconfig file and got this error.. <sessionState timeout = "60"/>

Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.

However if I tried to set it in anther aspx page it seems there a reason for setting up the virtual directory as an app in IIS ..what are the benefits of doing this, and is it always necessary?

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State Management :: SQL Database - Cache Expires The New Data Is Picked Up?

Dec 17, 2010

I'm running a website on a SQL 2008 database. At the moment most of my data is in cache but what I want to do is be able to update the data on a regular basis, say every 3 hours, maybe more frequently. Obviously I can set the cache to expire and pick up new data, but how can I replace part of the database (because some tables are populated by the user) in the background, so that when the cache expires the new data is picked up?

I notice when I upload data through VS, it wont let me upload if the DB is in use - so how do I get round issues like this?

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State Management :: Session Dies When IE Opens Inline File?

Jul 8, 2010

I have an old application built with J#.Now I'm changing and adding some stuff to it, but when I test it, something happens that didnt before.The application is a document administration system with bills and other documents in PDF, XLS and DOC.When I open a PDF (which opens inline in an iframe in my bowser) the session somehow dies.ever happened before, just saw it today when I was making the changes to the app.If I send the header "content-disposition" as attachment, the session remains. but if I send it inline (which I need) it

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State Management :: HttpContext.current.session Is Null In App_code/.cs File

May 20, 2010

1. SetSession.aspx page sets value for a session variable and redirects to default.aspx page using Response.redirect() code.

2. Default.aspx page tries to create an object of class in app_codecommon.cs file.

3. In app_codeCommon.cs file, I am trying to access the session variable set in step1 using HttpContext.Current.Session object.

but step 3 gives error that object reference not set to an instance. as HttpContext.Current.Session is null.

I surf abt it on net, and seems to be problem with framework.

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State Management :: Set Session Variables In One Page And Retrieve Them In Code File?

May 12, 2010

I'm trying to set session variables in one page, and retrieve them in my code file in the page that it posts to.

I keep getting this error. I put the correct namespaces in, and enabledSessionState = true to my application files, but no luck.

Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. 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.

I'm just calling a session variable, and I get that error


Public AUID As Integer = Convert.ToInt16(Session("AUID"))

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State Management :: How To Apply Session Globally In A Website Using Global.asax File

Jan 4, 2011

how can I implement a Global Session in my ASP.NET 3.5 website in C# using Global.asax file ?

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State Management :: Session Is Expire Error Processing Request / Config File Is Attache

Sep 5, 2010

i make a web site using frame but session is expire message is

Object reference not set to an instance of an object
Description: HTTP 500. Error processing request.

Stack Trace:

System.NullReferenceException: Object reference not set to an instance of an object at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00000] in <filename unknown>:0 at System.Web.UI.Control.LoadRecursive () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessLoad () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessPostData () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 My Web Config file is<configuration> <!-- store the database connection info here --> <appSettings> <add key="sBook_StoreDBConnectionString" value="Provider=Microsoft.Jet.OLEDB.4.0;User ID=Admin;Data Source=C:Program FilesCodeChargeExamplesBookStoreBookStore_MSAccess.mdb;Persist Security Info=False" /> </appSettings> <system.web> <httpRuntime executionTimeout="1000" maxRequestLength="2000000" /> <!-- DYNAMIC DEBUG COMPILATION Set compilation debug="true" to enable ASPX debugging. Otherwise, setting this value to false will improve runtime performance of this application. Set compilation debug="true" to insert debugging symbols (.pdb information) into the compiled page. Because this creates a larger file that executes more slowly, you should set this value to true only when debugging and to false at all other times. For more information, refer to the documentation about debugging ASP.NET files. --> <compilation defaultLanguage="c#" debug="true" /> <!-- CUSTOM ERROR MESSAGES Set mode="on" or "remoteonly" to enable custom error messages, "off" to disable. Add <error> tags for each of the errors you want to handle. --> <customErrors mode="Off"/> <!--<customErrors mode="On" defaultRedirect="Login.aspx"> <error statusCode="500" redirect="Login.aspx"/> <error statusCode="404" redirect="Login.aspx"/> <error statusCode="403" redirect="Login.aspx"/></customErrors> --> <!-- AUTHENTICATION This section sets the authentication policies of the application. Possible modes are "Windows", "Forms", "Passport" and "None" --> <authentication mode="None" /> <!-- APPLICATION-LEVEL TRACE LOGGING Application-level tracing enables trace log output for every page within an application. Set trace enabled="true" to enable application trace logging. If pageOutput="true", the trace information will be displayed at the bottom of each page. Otherwise, you can view the application trace log by browsing the "trace.axd" page from your web application root. --> <trace enabled="false" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" /> <!-- SESSION STATE SETTINGS By default ASP .NET uses cookies to identify which requests belong to a particular session. If cookies are not available, a session can be tracked by adding a session identifier to the URL. To disable cookies, set sessionState cookieless="true". --> <sessionState mode="InProc" stateConnectionString="tcpip=localhost:42424" cookieless="false" timeout="60" /> <!-- GLOBALIZATION This section sets the globalization settings of the application. --> <globalization requestEncoding="utf-8" responseEncoding="utf-8" /> </system.web> <connectionStrings> <add name="mydb" connectionString="Server=localhost;User=SYSDBA;Password=datacenter;Database=/opt/db/erp2.fdb;Min Pool Size=5;Max Pool Size=60;Connect Timeout=30" providerName="FirebirdSql.Web.Providers" /> <add name="mydb2" connectionString="Server=localhost;User=blackberry;Password=acgmkRMS;Database=/opt/db/pwd.fdb;Min Pool Size=5;Max Pool Size=60;Connect Timeout=30" providerName="FirebirdSql.Web.Providers" /> </connectionStrings></configuration>

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State Management :: Error :Session State Has Created A Session Id, But Cannot Save It?

Nov 18, 2010

I read the solutioin for this error, at the following link : I am still not clear what exactly causes the error. I have two doubts :1. Can anyone please elaborate a bit on this issue, with any example ????2. Is there any drawback of this approach ?

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State Management :: Session Mode State Server - Sending Asynchronous Request

Nov 5, 2010

Customer were getting "View State Validation Error" due to worker process recycling at our production webserver and to fix that i applied machinekey and then move my Session state Mode from In Proc to State Server to retain session data and not kick out the customer to relogin. I had serialization issue with one object which has to be stored in session but when i moved it out of session i could able to resolve the issue.

But doing all these i was partly successfull in keeping the user in their session when Worker Process recycle event occurs.I was able to refresh the page or make a post back by clicking the refresh button and also able to retain the session values. But the Problem occurs when sending asynchronous request to server which we do periodically every 15 minutes from the moment the user logs in.The web page doesnot update data on website when sending asynchronous request.By Debugging I found at this particular code point it fails to make a postback which is required.

<%=GetHintFromServer%> (When there is no Worker Process recycle i t gets replaced by
WebForm_DoCallback('__Page',message,ShowHint,null,null,false) on postback) Everything works fine when there is no Worker Process Recyling but when it happens looks like sending request asynchronously using javascript fails .Remember When I make a post back by manually clicking submit button everything works fine.

function SendRequest(msg, isBusy, chartMsg, vesselMsg)
_busy = isBusy;
if(chartMsg != null)
_element.SetMessage(true, chartMsg);
if(vesselMsg != null)
_element.ShowVesselLoading(true, vesselMsg);
_stuckWatchdog = setTimeout( "ClearPendingRequest();", 60000);
var message = msg;
var context = '';
alert( "Exception error on SendRequest(): " + e);

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State Management :: Unable To Serialize The Session State In 'StateServer' And 'SQLServer' Mode

Dec 12, 2010

I am new to .net 4.0 and am using EF Model and SessionState Mode=SqlServer and I am getting this error below:

Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. The same restriction applies if similar serialization is done by the custom session state store in 'Custom' mode.

I checked the stack trace and its complaining about

[assembly: global::System.Data.Objects.DataClasses.EdmSchemaAttribute()]
[assembly: global::System.Data.Objects.DataClasses.EdmRelationshipAttribute("PoplarGroveModel", "tblMenuRole", "tblMenu", global::System.Data.Metadata.Edm.RelationshipMultiplicity.Many, typeof(PoplarGroveDataModel.Menu), "tblRole",


I marked it as serializable but then it complains about System.Data.Objects.ObjectContext is not marked as serializable and hence throws the same error.

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State Management :: Recreate State Session Database In SQL Server 2008?

Apr 5, 2010

Our ASP.NET App uses ASP State Session Management and has been rebuilt about 2 years ago [With .NET Framework 2.0]. We are currently in .NET framework 3.5 and have moved to SQL Server 2008 - but continue to use the same ASPState database. The State database has been upgraded to SQL Server 2008. Since then we have are seeing timouts/locks on ASPStateTempSessions table. I am wondering if we have to rebuild this database from scratch with some newer scripts?

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State Management :: Asp Create New Session State Cookie Each Time On Debugging?

Jan 21, 2011

I'm using the following line of code to display the number of users currently logged on:

lblNoOfUsers.Text = Membership.GetNumberOfUsersOnline().ToString()

I'm still debugging my application so it's on the local server. As I debug and stop then debug again, eventually lblNoOfUsers.text turns to "0" instead of "1", even as I'm navigating my application. It only turns to "1" again if I log out and sign back in. It's almost as though Membership.GetNumberOfUsersOnline my login are referencing two different session states. How is this possible? Does create a new session state cookie each time I start debugging?

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State Management :: Session State Expiration After Application Pool Recycle?

Nov 1, 2010

All we have a global ships position tracking website which runs smoothly until IIS application pool recycles.When there is workerprocess recycling looks like session state expires as a result i loose all session data and when customer clicks refresh button he is redirected to login page.

In web.config Session state mode is set to InProc so i changed it to State Server but to my luck i have MAP object which is not serialiazable which is causing the maps from not appearing on the website.I tried adding serializable attribute to the object class but still not succesfull.Our website is accessed by our customers whose count is more than 1000.

Changing the session state mode from InProc to StateServer can really slow down the response time so
Is it good to go further fix the serailizable issues and move to state server?.

Is there any way I can retain my session data when application pool recyles?..

Stopping Application pool from recycling may not be a good idea considering health factor of web server.

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State Management :: Session State Returning Null Values?

Apr 29, 2010

I have a clear button and a textbox in an aspx page. I set the session variable in this page as

String str = Textbox1.Text;

Session["TypeIds"] = str;

and I clear the sessions in a clear button event as


Then when the user types some value in the textbox ,on Response.Redirect on another aspx page, the session variable returns null values.It does not retain its session state. The session state has to be maintained in the next page. Is it because this clear button event and setting explicitly to null creates this problem?

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State Management :: Version 2.0 Session State Not Installed On SQL Server?

Oct 27, 2010

The fix for this error message is to run [Code]..... I have run that uptown, downtown and in my lady's chamber and it does no good, although it never complains. Are there any other possibilities?Details:
IIS Server: v5.1 running on XP. SQLServer 2005 running on a different XP box.Microsoft .NET Framework Version:2.0.50727.3615; ASP.NET Version:2.0.50727.3618 There is an ASPState database on the server, containing only two tables: [Code].... and [Code]..... I did not use [Code].... when I ran [Code]....

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