Session Data Lost On Postback Of The Page In Windows XP?
Apr 26, 2010
I have a ascx page on load of the page I save few data in the HttpContext Session, on selection of data in the screen I reload the page with relevant data for the selection. Until here the data in the session exists. But on click of a button say ok button to navigate to next page. all the data in the session is lost. But the same works in windows 7 and windows server 2008 not in windows XP. are there any configuration difference in windows 7 and XP.
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Apr 26, 2010
asp.net session data lost on postback of the page in windows XP.
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Jun 7, 2010
I'm evaluating using Ajax in a new project and so I've developed a simple web page to test a few things, however even the simplest task seems to cause my session to be cleared. I am using VS2008 with .Net 3.5 SP1 and the page is in my existing solution which has several custom handlers and modules in the web.config. Below is the code I'm using, it's a simple test which puts a variable into the session then on the buttons postback tries to get the same variable, however it always fails as the session is blank.
The Default.aspx code snippet
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" /> [code]....
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Oct 27, 2010
I'm getting some strange behaviour with viewstate being lost on postback for a .net application using Sitecore. I'm assuming it might be some config variable somewhere but I'm new to Sitecore and don't really know where to start looking.
UPDATE: Sitecore has now gotten back to us with an answer. We had recently added the dtSearch module, and AutomaticDataBind was set to true in the dtSearch.config which overrides the setting in the web config. We've now removed it and it works fine again.
I've made a mini test if that might help. It's two usercontrols on one page, both with a repeater. When updating the viewstate gets lost so even if I'm binding the updated repeater again the data for the other one will be lost.
Usercontrol 1:
<asp:Repeater runat="server" ID="Repeater1" OnItemDataBound="Repeater1_ItemBind">
<ItemTemplate>
<li>
<asp:Literal runat="server" ID="Literal1"></asp:Literal>[code]....
what might be going on? Let me know if I need to provide any more information. The most annoying thing is that it was working last week but I have no idea what has changed!
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Sep 10, 2010
Building asp.C# shopping app that is using a hosted payment page to process payments (using posting of data to a hosted payment page). SSL certificate is signed and installed.
Flow:
Prelim) (HTTPS) Users authenticate using asp Login control
1) Users add items to cart.
2) (HTTPS)Users go to checkout page.
3) Users finalize their order, then click pay now after agreeing to T&C.
4) Server gets cart data (from MSSQL2005) and sets a transaction cookie (expiry set to 20 mins).
5) (HTTPS) Server Response.Redirects to an html page (in the same folder as the login protected pages).
6) Html page reads transaction cookie data and generates form fields.
7) (HTTPS) Html page posts data to hosted payment page (php).
8) User enters payment info and clicks pay now.
9) (HTTPS) hosted payment page posts info back to a .aspx page that checks if payment OK.
10a) If payment !OK, redirects to a declined page.
10b) (HTTPS) If payment OK, sets a verification cookie (expiry set to 20 mins). Then redirects to another html page.
11) Html page reads cookie data and generates form fields.
12) (HTTPS) Html page posts data to hosted verification page (php).
13) Verification page verifies (of course), if transaction ok.
14) (HTTPS) verification page posts data to a .aspx page that checks if verification OK.
15) If verification OK, process orders and do receipt stuff.
Issue:
This control flow was tested on an unsigned dev environment. SSL was being enforced, if needed on the unsigned SSL certificate. So we'd get prompts that certificate may be bad, but the control flow worked seamlessly.
However, now live with a signed SSL certificate, going from step 5 to 6, we are encountering a situation where some users (not duplicated every time, but verified that it does occur) when they click pay now and are redirected to the html page, they are forced back to the ~/login.aspx page (as if they were logged out).
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c) I can process the entire flow seamlessly on the same machine with other accounts, and occasionally, the same account.
So, basically, I'm stumped... Is this a viewstate error? A login control bug that won't let me redirect to an html page because it is now using a real SSL? Anyone have any experience with this kind of deal? I'm at a loss for solutions at this point.
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Jul 27, 2010
I am developing an application using Visual Studio 2010 and SQLServer 2008. My application has two pages and the first page contains a GridView with all the records "User Administration" and when user click on any Username (template field ->linkbutton) I read the USERID like this.
Session["UserID"] = e.commandArgument;
Response.Redirect("UserOperations.aspx");
which takes it to the Data Entry page where user updates the information and save the data.
The problem i am facing is that when I hit the browser REFRESH button couple of times the session variables looses the value which is trouble for me as I am using Session Variables for different purposes.
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Mar 3, 2011
I have an .aspx page which consists of 5 tabs. Each tab content is a .ascx page. i.e. i have 5 ascx pages and on the click on eachtab i load the particular ascx page for that tab. Consider i have one textbox and one button on each of the 5 ascx pages. When i type something in each of the textbox and when i traverse to other tabs the data remains on the textbox on all the pages. But when i click on the buttons on any of the tabs , postback happens and the data is lost. Now what i want is consider i type "Mark" on my txt1 on tab1. and i type "steve" on my txt2 on tab2. When i click on the button on tab1 and traverse to tab 2 i want the data to stay on tab2?
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Dec 20, 2010
i have two web aplications running on different sites.
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Nov 18, 2010
I am working on an ASP.NET application (well supposed to be deploying it about 3 days ago) and my hidden fields are loosing value when the form gets posted back..
I am using them to store information i write using javascript and on my own machine this works fine but as soon as i deploy it on our server everything else works except these values are lost..
I am using the .NET AJAX control toolkit on the same page and have noticed my calander datepicker also looses the data..
I have checked using firebug and the data is definitely getting post to the server but is getting lost somewhere!
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Jan 5, 2011
I have a c# code that put some background color in cells according with some values, the problem is that each time I add a button or a postback occurs I lost all colors (and other attribs).So my workaround in call the function that fills the gridview each time... but this produce a slow performance.
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Apr 19, 2010
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.
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Mar 14, 2014
I can not get the Selected Item value in in GridView Dropdowntemplate Feild
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string ItemSkuCode = ddlIMEntity.SelectedItem.Text + "-" + txtIMItem.Text + " -";
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if (ddl.Items.Count > 0)
[CODE]..
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Jan 25, 2011
I need to make my asp.net session cookie as secure but whenever i check user authentication and after that i am trying to set cookie to true then my session lost my user information and so it always redirect login page. I am settings user to HttpContext.Current.Session["user"] and check every time, is user is valid and if valid then move ahead. but before that i make my asp.net session cookie as true.
[Code]....
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Mar 3, 2010
In design time I created a Gridview and a delete button in a page test.aspx:
[Code]....
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because it cannot find the checkbox created before.
I tried to shift all the code in Page_Load to Page_Init, but the ticked checkboxes are still lost.
I could find the ticked checkboxes names in its request object parameters(this.Request.Params.AllKey) if I setup a breakpoint on the error statement.
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Sep 10, 2010
I have a gridview control that extends the default gridview. I have added an attribute called "hiddenSelectedValues" to to the gridview during the "PreRender" event and I have a private variable that points to the value of that attribute.
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Apr 28, 2010
First, I'm running my application on my local Win 7 box, and viewing the site on the same box.
I have several session variables set while interacting with my application. When I go to check the data in the database through the Database Explorer (Show Table Data), my session is lost. This is instant.
Why does this happen? Is there a way to prevent it?
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Mar 16, 2011
just wanna ask if ASP.NET has a Module and Class file also. I used module and class file in every windows application that Im making so that my code is reusable. Does ASP.NET have this also. And ow, someone told me not to use this kind of method.
Code:
Public ReadOnly Property Username()
/ CODE Here
End Property
Cause he said the value of it will be lost every postback, why is that ?
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Mar 3, 2011
which are the control/thigns in asp.net whose value is lost on page postback.
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Mar 8, 2010
One of my functions in a class is called GetIpAddress() which returns the following string:
System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]
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Jul 21, 2010
I have a button that executes a script using AJAX.Normally when a session is still active the script will return some data that will be placed inside the parent page.If the session expired the AJAX will return the login screen which gets placed inside the parent page which looks really odd.How would I be able to detect a session timeout and do a postback on the parent page?
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Mar 12, 2010
I have a hiddenfield, which I want to save the scroll position of asp.panel scrollbar during postback, and when during postback this value is called back to set the scroll position.
Using javascript I can grab the value from the scrollbar, and assign it to the hidden field, but when I post the page back the value has gone.
Here is my code snippet:
<script type="text/javascript" language="javascript">
function SetScroll(val) {
[code].....Am I missing something? How do I keep the value during post back?
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Feb 4, 2010
I have a problem
<script language="javascript" type="text/javascript">
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Mar 29, 2010
I am using an asp:upload control to upload an image and am using the postedfile property to insert the path to the database. In my form I have a dropdown with autopostback=true where the user can select a topic to populate a checkbox list of categories. During that postback, the postedfile value is being lost and after a little research I have discovered that the posted file value is not maintained in viewstate for security reasons.
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Apr 9, 2010
Am doing wepsite for show images from local drive using asp.net.am using session object for Transfer image path from first page to second page its running nice in vs 2003 .but i converted this website to vs 2005.but session value does't pass to next page.i got null value in session object. am using inproc session mode
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Sep 22, 2010
I'm at my wits end on this one looked/Searched/Played/Experimented and I need your help if you can.This page is going to be primarily used on a mobile device using Win Mobile 5 Need to Accomplish:Prevent Postback(serverside) of Page using JavaScript (Postback's slow down the page on mobile device)
[code]...
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