Persisting Session State Via Multiple Request Using JQuery $.ajax()?
Jan 25, 2011
just been trying to recieve the session value from multiple jquery ajax requests on the same domain name. i think i understand that each request is kind of a virtual browser request so the session is mutally exclusive to each request, but there must be a way some how, has anyone solved this. Basically this is what im trying to do:
I have tries using type: GET and POST but still no luck.
First request - Stores the product id in a session
[code]....
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Aug 5, 2010
I have been spending a better part of a week trying to track down why I am not able to clear all session variables in a web app (vs 2010, vb.net). What I have tracked it down to is that when I remove or abandon sessions that my html pages or codebehind access, it works, but for some reason in any of my class files where I use "Public Shared strConnection as String = HttpContext.Current.Session("strConnection").ToString" to access a session variable, it finds the old one and not the current one. I have to wait for it to time out, go in again, and it will find the new one.
I do not use Linq, and there is only one place in the whole web app that I place the connection string in a variable whcih is when a person logs in. It points them to the correct database. The sqlconnection is set for all of my listviews in Page_Init to make sure that they aren't using any session variable that they create on their own. Interestingly enough that if I use debug to go in each time, exit debug, enter debug again trying to access a different database, it works correct each time. I assume that debug is correctly killing the session variable for the classes for me.
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Jun 17, 2010
got [URL] - two separate apps in IIS.
Want the forms based auth to persist (they use the same database for membership)
I tried to simply add a "." before the domain name in the forms tags (see below for example) - but this didn't work - it acutally prevented me from logging in at all. how i can persist the login? Does the admin need the same values for "name", "path" and "domain" as the main site?
[code]....
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Dec 7, 2010
Have not run the ASP.NET Development Server for a while. Today I copied a production website to my workstation and ran it with VS 2008. The following error message popped up. What is the problem with the ASP.NET development Server on my workstation? The website on the Production server still ran okay.Unable to make the session state request to the session state server. Please ensure that the ASP.NET State service is started and that the client and server ports are the same. If the server is on a remote machine, please ensure that it accepts remote requests by checking the value of KEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesaspnet_stateParametersAllowRemoteConnection.
If the server is on the local machine, and if the before mentioned registry value does not exist or is set to 0, then the state server connection string must use either 'localhost' or '127.0.0.1' as the server name.
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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.
SendRequest(Asynchronous)
function SendRequest(msg, isBusy, chartMsg, vesselMsg)
{
try
{
//confirm("msg"+msg+"isBusy"+isBusy+"chartMsg"+chartMsg+"VesselMsg"+vesselMsg);
_busy = isBusy;
if(chartMsg != null)
{
//confirm("chartMsg"+chartMsg);
_element.SetMessage(true, chartMsg);
}
if(vesselMsg != null)
{
confirm("chartMsg"+vesselMsg);
_element.ShowVesselLoading(true, vesselMsg);
}
_stuckWatchdog = setTimeout( "ClearPendingRequest();", 60000);
var message = msg;
var context = '';
<%=GetHintFromServer%>
}
catch(e)
{
alert( "Exception error on SendRequest(): " + e);
}
}
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Apr 21, 2010
Our Web Server rebooted due to power failure. Now ASP.Net State service would not start logging the following error on the server:
Unable to make the Session State Request to the session state server. Last known phase=Sending request to the state server
how to bring back the ASP.Net State service.
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Sep 3, 2010
I'd like to be able to reference the asp.net objects Session, Request, from a procedure without passing them in as parameters all the time. Is there a way to do this. For example, now I have
[Code]....
I'd like to call it like this "ContextPT.GetSession()" and have GetSession know how to find the Session object. I know this does not seem like a big deal in this case, but I have reasons.
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Mar 31, 2010
I'm writing a product management system for a website. As an administrator defines product details, those details are stored in the Session so that fields remain populated as the user navigates across multiple pages. One of these fields is a "RichTextBox" that allows the user to define a product description with rich text.
Attempting to pack the contents of this rich text box into a Session variable raises the following Server Error:
A potentially dangerous Request.Form value was detected from the client (ctl00_ContentPlaceHolder1_RichTextBox1_tbxRichContent="<b>asdf</b>").
The offending line of code is as follows:
Session["NewProductDescription"] = HttpUtility.HtmlEncode(RichTextBox1.Text);
I thought HtmlEncoding would solve the problem, but it did not.
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Jun 3, 2010
I have noticed that when I have a session that has expired, the Session_OnStart event fires with every new request.
I suppose that this behavior is not normal, because I was expecting that the session would re-start only with the first request and not with every subsequent request.
This behavior occurs only with sessions where the timeout period has been exceded.
The current conditions under which I have experienced this problem are:
I have experienced this problem with an application that is using the .NET 2.0 framework and with a session mode configured to InProc. This problem is happening both on Windows XP SP3 and Windows 2003 Server.
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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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Jan 3, 2011
I'm building a web application that has a particular model representing some events. Users need to be able to add N number of people to a given event. Choosing people is handled by a partial view.
I'm trying to build a menu that displays when users click "add a person" to the event. Because the event hasn't been filled out completely yet, there is nothing in the database to persist between requests.
I also have validation logic on the event page.
My proposed solution is to add the form to search or add for people on the event form itself and have a submit button that sends the values that have been added back to the server, where I can store them in ViewData or Session.
Unfortunately, doing this flags the validation.
My second solution is to load a partial view responsible for loading the UI to add/search for a person. I could add a little code on the method in the controller that returns a partial view storing the existing data in a session variable or viewdata. Trouble is, I have to submit the form to do it--again tripping the validation!!!
I'm wondering if perhaps I chose the wrong tool to do this...because in webforms, there would probably be a postback and you would just perform an operation on that postback. I'd like to avoid rewriting the application in webforms and am wondering if there are ways I'm overlooking in ASP.NET MVC.
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Aug 26, 2010
I have the following code where the function codeaddress geocodes the text feild value and returns geocoded value , geocoded value is stored in variable example ,how will i return the variable v2 to the function call and post to asmx webservice.
[code]....
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Mar 23, 2011
Suppose I have created a spgridview with the following code.
[Code].....
To persist the checkbox states between pagebacks ,currently i am using session states.It has some draw backs.Now how can I persist the checked states,when the user manually checks all the checkboxes,how can i make a check on the header checkbox?
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Nov 5, 2010
I wish to persist a class object across postbacks by using a single session variable/object/whatever.
The class has about a dozen single variable properties; and about a dozen table properties; and several methods. The main table tracks rows of sporting event results. The web site will collect one row at a time for each postback. The data in the object's constructor is based on a dataset, but the data in the class will grow each time I do a postback so I don't want to loose the information in the class. The data isn't very big - it will fill a single computer screen.
Being new to programming I am thinking that I can store the dataset in the session but that would slow down the response time because I the methods would have to be called to refine the data - or maybe I can just store the entire class object in a session.
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Mar 12, 2010
I have a bunch of EC2 servers that are load balanced. Some of the servers are not sharing session, and users keep getting logged in and out. How can I make all the server share the one session, possibly even using a partitionresolver solution
public class PartitionResolver : System.Web.IPartitionResolver
{
private String[] partitions;
public void Initialize()
{
// create the partition connection string table
// web1, web2
partitions = new String[] { "192.168.1.1" };
}
public String ResolvePartition(Object key)
{
String oHost = System.Web.HttpContext.Current.Request.Url.Host.ToLower().Trim();
if (oHost.StartsWith("10.0.0") || oHost.Equals("localhost"))
return "tcpip=127.0.0.1:42424";
String sid = (String)key;
// hash the incoming session ID into
// one of the available partitions
Int32 partitionID = Math.Abs(sid.GetHashCode()) % partitions.Length;
return ("tcpip=" + partitions[partitionID] + ":42424");
}
}
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May 26, 2010
I am sorry if this is been discussed earlier. I am having a problem maintaining the session when someone uses the same browser with multiple tab, the results gets messed up. A perfect example would be, [URL] if you open IE (or any other browser) and open two tabs and search for two different air travel itinerary and the results will completely overlapped (real mess). I know the cause for this problem (both tabs uses the same session). I would appreciate if somebody have any solution for this. I am using ASP.NET 3.5/VS 2008/VB.NETI will not be able to use Viewstate since I use a master page and pre-init event where view state is not available.
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Nov 18, 2010
I want to pass multiple values to another page from my gridview. For sending i got this codes : (writing same page selected values)
[Code]....
Here is my question How can i catch from another page this values?
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Apr 20, 2010
i have 2 different sites under different subdomains.
www.company.com
and e-order.company.com
i want to have SSO so i have tried to make a global cookie.
my question is :does the global cookie keeps the session variables when i am going from one site to another?
if not how can i pass a session variable for ex. session("userName") from one site to the other on redirect?
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Feb 17, 2010
I'm writing an ASP.Net application (no AJAX, but maybe) and there's a requirement to have a list of companies graded under a traffic light system. I intend to have these in a collapsible hierarchical list on the Master page, e.g. Red expands to show companies, and then companies can be further expanded.
how can I keep the expanded list in the same place, with the same content visible, between page loads?
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Oct 13, 2010
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?
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May 3, 2010
While working with mutliple tabs of same browser, session varibles/object gets over written with latest one.
Scenario in my application:
I have to create new employee on first tab(tab #1), and updating existing employee details on second tab(tab #2).I stored employee other details in Session["dtInfo"], use it on saving the record.Now Session["dtInfo"] having details of latest tab created, i.e. tab #2. I tried to save record on tab #1, facing the problem of session gets over written.I had to check some vaules on OnInit and OnInitComplete event. But I get here wrong values in session.
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Jul 10, 2010
I would like to reuse in different ASP.net classes the following code :
[Code]....
However i cannot add this code in App_Code because Session is not recognized in .cs classes.
Therefore i need to create resusable asp.net classes which will contain the previous code.
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Jan 2, 2011
I am using this code to pass variables from ASP.NET application to HTML Application:
[Code]....
The above code is run from page_laod event, and I am making some development changes on the Development Machine (say
http://eutdev02/ehrmd).
After the ASPX page is loaded, and I debug the javascript in the HTML (F12 under IE8), and can see the Cookie is found in the browser.
But, when I open the target HTML/Javascript web page (which will read the cookie prmStaffID), but the HTML Page is on the production machine (separate server say
http://prod01/Attendance.html), the Cookie is not found !!!
It seems to me that Cookies will persist only on one IIS Server, and will not be global.
Question:How I can persist the Cookie on the Client Machine regardless of the the Server Machine ?
For testing purposes, I want to send the cookie to the client from teh Development Server, but the target application is under HTML/Javascript, and I want to be able to read the same Cookie using Javascript.
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Oct 19, 2010
I've created a visual webpart .My user control is gridview,in which one of the column is checkbox.The checked state of my checkbox within a gridview get disappeared during postbacks. I want to maintain the checked state.
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Feb 9, 2010
I've a checkbox with autopostback=true. If i check the checkbox the postback occurs and changes a label text. But if i click back in the browser the checkbox is not returning to its previous unchecked state. How can i bring back its state?
Can i write some JavaScript to persist the state of a control?
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