State Management :: Retain All HttpContext.Current Data After Redirect/transfer To Another Aspx Page?

Jun 9, 2010

What is the easy/safe way to get all HttpContext.Current data (like querystring, etc) in the previous page, after response.redirect or server.transfer to another page?

I am using .net 3.5

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State Management :: System.Web.HttpContext.Current.Items Not Working?

Jul 21, 2010

In a page (not default) I have:

Sub Page_Load(ByVal sender
ByVal e
As System.EventArgs)
loginRep = BusinessLogic.SR.GetUserName("99999")

I don't any errors and when in the run in the immediate window:

? System.Web.HttpContext.Current.items("RepId") in the immediate window on THAT page I get the OBJECT.

Then I have a hyperlink with navigateurl to the next page "~/ActCnt.aspx"

On that page, ActCnt.aspx, when in the code I have:

Sub Page_Load(ByVal sender
ByVal e
As System.EventArgs)
Not Page.IsPostBack
Dim loginRep
As BusinessLogic.SalesRep = System.Web.HttpContext.Current.Items("RepId")

In the immediate window ? System.Web.HttpContext.Current.Items("RepId") returns a String that is equal to "RepId".

Even if I change it to not be an object, but a string I only get the Name "RepId" of the keypair. I have NEVER gotten the actual value.

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State Management :: Users Getting Logged Out Because HttpContext.Current Is Null?

Aug 19, 2010

We've got a fairly large, complex web application that uses Forms Authentication to authenticate users. Throughout the application we store and retrieve information about users in the Session object, and in some cases in cookies. In a couple places we check for the existence of the context, and if it's null we send the user back to the login page to re-establish the session. Just a quick run-down of this web app: C#, .NET 3.5, IIS 6, ASP.NET State Service to manage sessionAs for the session timer, we use our own home-grown timer, which is basically a client-side timer, which is backed up by a check to the SQL database to see when their last activity was. This seems to work well for us. It's not perfect, but it allows us to notify the user before the session times out, and allows us to be certain we're not logging a user out before their 60 minutes of inactivity is up.What's happening is that certain users are being logged out after just a few minutes. We've eliminated the timer as a cause and believe what's happening is the HttpContext.Current is null, so the user is logged out. We do not know why the HttpContext.Current is null, and I understand there are many reasons that may occur. What I'm trying to figure out is, is there any way to re-establish the context once it is null? If not, is there anything I can do at this point other than have the user login again? We're also trying to figure out a better way of managing user information (preferences, roles, flags, history, etc), but everything needs context to use, right? Cookies, sessions, cache, etc. all require a response or request, correct? hope this makes sense, because I really need help with this. I've searched the forums here, and found many posts about HttpContext.Current going null, but not a lot of solutions for this...

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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 :: Transfer Data From First Page To End?

May 25, 2010

i have a problem to transfer data from first page to another page...

basicly my web site that i build now have like 4 i name it registration1 - registration4 ...

the problem i face now is when user click to next page the data entered on that page cannot retrieve from another page...for example..

firstpage ;

-User enter data on the form that i design for registration...and then click send..

second page:

-user enter another data on the other form again...and click send

third page:

-user enter another data on the other form again...and click send

forth page:

-all the information give to user from first page to 3rd page will display..and have a button to print all the information..

my problem is i cant retrieve data from every single page...

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State Management :: Page To Automatically Redirect To A "registrationClosed.aspx" Page On A Specific Date?

Jan 24, 2011

I have a page that allows visitors to register for an account, but I want this page to automatically redirect to a "registrationClosed.aspx" page on a specific date...

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State Management :: Transfer A Variable To Another Page When A Button Is Clicked?

Nov 4, 2010

I want to transfer a variable to another page when a button is clicked. I include the html code in label.text.

Source code is as follows:

MyLabel.Text += "<button type="button" onclick="location.href='a.aspx?oid='+this.oid"><b>Detail</b></button>";

oid is the variable that I want to transfer.However, It says "http://localhost:61884 OBJ_Browser.aspx?oid=undefined" when I click this button.

how I can transfer the value of oid to another page?

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State Management :: Change Server Via HttpContext.Current.Server = "ServerName"

Dec 15, 2010

My web application is hosted on a loadbalanced and whenever the requests are routed to one of them(say Server B), the request fails. Now I want to redirect my requests to the working server (Server A) which always works.

I want to do it via the HttpContext.Current.Server = "ServerA";

How can I do this. Do I need to create a new HttpContext Object ?

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C# - HttpContext.Current.Session.IsNewSession Still True After Redirect?

Feb 18, 2010

I am trying to redirect to the same page with different query string parameters

HttpResponse resp = HttpContext.Current.Response;


To avoid further processing after redirection i check if

HttpContext.Current.Session.IsNewSession == false

but for some reason i found that this is not always the case after redirection

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State Management :: Data Transfer Between Pages Using Visual C#

Feb 7, 2011

I am using Visual C#. ould smbd tell me how can i take the data inserted from the user (1. in a textbox 2. in a dropdownList and 3. in a radiobutoonList) and use (or display) that data in another .aspx page ?

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HttpContext.Current.Response.Redirect With Visual Studion 2010?

Mar 23, 2011

As I have migrated Web Application from 3.5 (VS 2008 ) to 4.0 Vs (2010)

Now i am having problem with Response.Redirect

As I in .aspx pages i have found the following solution and it is working fine.

old Code with is not Working in Vs2010


But now I need to Redirect from the class librarySo can any one guide me on the same.. i can i redirect .. AS I have try with HttpContext.Current.Response.Redirect(strURL); but it is not working.

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State Management :: Pass Data Between Pages Without Using Server.Transfer?

Mar 15, 2011

I have an update panel with a gridview. When the user hovers over one field in the gridview, a HoverMenuExtender pops up to display more detail of the row from the gridview. The gridview also has a button, that when clicked, uses server.transfer to pass some info via the method about the row selected.

I can't get these two to work together. Either the update panel will work with the hover menu, or the button in the gridview will work with server.transfer. Sys.WebForms.PageRequestManagerParserErrorException is the error

Found this article that talke about using Response.Redirect instead of Server.Transfer. But, that won't work for me because Response.Redirect doesn't work with passing data between pages.


So, what I'm trying to do is figure out how to set a button in my gridview to be asynchronus, but can't figure out how to do that with this button from my gridview.


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C# - JavaScript PageMethods Call Loosing HttpContext.Current State?

Dec 29, 2010

I am using JavaScript's PageMethod functionality where I am invoking a PageMethod which works like a gem. However I am having an issue in accessing the HttpContext's state which returns me a value "SYSTEM" for


which is not the actual current User Name.

I know there are couple options like storing HttpContext.Current in a Session or saving Context's state in some other custom container but given a web farm environment I am assuming that this will not work as expected.

Here is the code I am working on with

function MyFunction(){

here is the signature of the server method

public static void MyPageMethod()
// gives me "SYSTEM"
var user = HttpContext.Current.User.Identity.Name;

Also if I use the above code to access user name in OnLoad event of the page then it works fine and returns me the CurrentUserName.

I am trying to get the above code to work in an ASP.NET Webform... :)

So I am wondering if there is a way to access the current actual user in page methods without making use of sessions.

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State Management :: Redirect Page To Login Page On Logout?

Dec 2, 2010

In logout link's click event i have written Session.Abandon() that will destroy the Session state.I am also handling Session_End event that is fired afterward (written in Global.asax). But one more thing i want is that after Session ends, login page should be redirected (opened).

For that i wrote:


This is working fine on the surface, but after applying debugging i saw that there were unexpected number of calls to Session_Start and Session_End events for two times, then login page was opened.

Why Session_Start and Session_End was called two times ? If i left this process as it is working then may i get some serious error in future ?

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State Management :: Session Time Out - Redirect Page To Default

Feb 21, 2011

I'm using sessions to track user name. I assign Session["userName"] in my login procedure. The sessionn gets timeout in about 15 minutes. What I need to do is, if the session timeouts I need to redirect the page to the Default.aspx page.

How can I do this? Any code example would be great.

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How To HttpContext.Current Work, Providing Context Appropriate State Off A Static Variable

Mar 31, 2010

I've always wondered how you can access the correct state of the current http context via a static method:

HttpContext.Current.Session["foo"] = "bar";

In any other program, anywhere else, my initial assumption about working with a static accessor like this is that changing it will change it across all threads. Similarly, another thread running my change it on me while I am trying to use it.But HttpContext.Current does not behave like this. It provides the appropriate state for the given request, even through the static accessor.

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State Management :: How To Use HttpContext On A Web Farm

Aug 16, 2010

I'm considering using the HttpContext.Items HashTable to store reuseable user data (per user) instead of in the Session,

I'm hoping that this data is stored on the client and not on the server, but I did not see anywhere that this is the case...

Also, is there any drawback or loss of data that can happen when using web farm or clustered web servers ?

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State Management :: Unable To Retain Session Variable?

Jun 17, 2010

We are setting session variables in the login page with all user details.And in all subsequent pages we check this session variable.This check is done in the page load of master page.As the number of users increased am getting error with these session variables.This session variable is returning me "nothing" when I check and the user is redirected to logout page.Interesting thing is that this is not happening always.

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State Management :: Retain A Value In A Variable After The Session Has Ended?

Nov 30, 2010

I was wondering is there a way to retain a value in a variable after the session has ended?

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State Management :: Redirect User To Login Page If Session Is Null?

Sep 7, 2010

i have 2 page,

1.login.aspx --- 2.welcome.aspx

in my login.aspx im storing username into sesssion as below:

Session["usernm"] = txtUsername.Text;
in my welcome.aspx page
in page_load event
if (Session["usernm"]==null)

here if i manulally paste the url ( http://localhost:4125/Loginado/welcome.aspx) it should go to login.aspx for user credentials

but its going directly to welcome.aspx page.

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State Management :: Post Data From Window1.aspx To Window2.aspx

Nov 10, 2010

I've scoured through the Forums about how 2 windows can interact with each other. There had been a lot of solutions involving parent-child windows, or modal pop-up wiows. However, my problem involves 2 aspx windows that show data from the same datasource, but should be able to update the data from either window, and after saving in either window shows the updated data

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State Management :: How To Detect Session Time Out And Redirect To Login Page In .net Website

Jan 8, 2010

I have one website in which there is one page along with one ascx as registered into it. In the ascx where user can add some order details and click on "Make Payment" button, then there are following 2 cases...Case I: If user was not logged in, then a modal popup will open which has login ascx with 2 buttons Register & Login. In this case user either Login or Register and continue with "Make Payment".

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State Management :: Caching Aspx Page?

May 19, 2010

how can i cache aspx page?

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State Management :: Show  default Country, State , City At Page Load Of Default.aspx ?

Sep 18, 2010

Here is my scenario.In default.aspx page user selects the country, state, city from drop down list, and store them in cache for further use. but when other user open the web site from other computer it shows the same country, state, and city selected by user 1. Is there any problem related to cache? I have stored data as following.

cache["ctryID"] = ctryID;

cache["stateID"]= stateID;

cache["cityID"]= cityID;

I want to show default country, state , city at page load of default.aspx

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State Management :: Send Variables To Another ASPX Page

Apr 24, 2010

I know there are at least 2 ways to send Variables to another ASPX page.

The first way is the use <form> and <input type="hidden">

The second way is the put the variable(s) in the URL such as

Is there a 3rd way to send variables using VBScript inside the <script runat="server"> tag?

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