i am setting the session valuebut when i try to get it on other page its nulli am storing session in sqlpreviously it was wrking fineand still some session values are wrking okbut when i add a new its null while getting it
View 1 RepliesHave 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.
Partial Class Preferences_MyPreferences
Inherits System.Web.UI.Page
Dim userID As String = Session("UserID")
This is just a page in asp.net. I want to be able to grab the Session("UserID") but every time I try, I get this error:
Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the \ section in the application configuration.If I put that Dim userID inside say the Page_Load Event, then it works fine. Why does it have to be inside an event? I want to dim it once, and use it throughout the page.
On page load I am populating my own list object, storing in session & it is getting stored, When I am debugging i can see that list object is stored in session, But When I am reading that session variable in next page, it's throwing error like
The type 'Dispensary.ResourceScheduling.Views.SchedulingPopup' exists in both 'WebApplication.dll' and 'App_Web_6bndsqgu.dll'
Getting error when trying to save structured arraylist into session Variable (see btnTS_Click below)
Code works on my desktop VS2012 devel system but not when posted to webserver we use.
Try It: [URL] ....
Code:
Public Class _Default
Inherits System.Web.UI.Page
Structure HoursData
Dim Project As String
[Code]...
I just stumbled across the concept of a "Web Garden" in an IIS App Pool. That is, when more than one process serves the same webpage. From what I understand, this means ASP.NET InProc sessions have the same problems as a web farm.
My question is, assuming your production environment is a web farm but your development/test environment is not, would it be to set up a "Web Garden" in dev/test? I'm thinking this would help catch any multi-process/server issues early on, or at least confirm that everything works as expected.
I have a Dynamic Data application to which I have added a class for extending EDM. Everything works great, but now I am trying to set an entity property value equal to a value in session state - and its not recognizing the Session command. I'm trying to do something like this:
audit.action_by = CStr(Session("person_name"))
I think this is because I do not have the class Inheriting Page, but if I do add Inherits Page it breaks other stuff. How can I have the class include the ability to utilize sessions directly without inheriting Page?
I have added objects to the session state in an aspx page which is using an object datasource.I want to get the session value in the class library which is used by the object datasource.
code in class library
selectedrelease = HttpContext.Current.Session["selectedbuild"].ToString();
code in aspx page
HttpContext.Current.Session["selectedbuild"] = TreeView1.SelectedNode.Text;
However i am not able to get the session value in class library
We have been receiving reports of the following server error periodically from users.
[OutOfMemoryException: Exception of type System.OutOfMemoryException was thrown.]
[HttpException (0x80004005): Unable to serialize the session state.]
Please note that non-serializable objects or MarshalByRef objects are not permitted when session state mode is "StateServer" or "SQLServer".
Once in a state where this error appears, it appears to be hit or miss whether the errors are reproducible locally. If they are, then we can usually reproduce them for a couple minutes, but not on every page hit. This usually tapers off on its own and usually has resolved itself by the time we get back in contact with the users. The Web Service has around 90-100 active connections during business hours. The only other site on this server is the staging version of this site, which gets hit very infrequently. The Session State is stored on the same SQLServer instance as the application database which is housed on a fairly large cluster of virtual machines.
Neither the Web Server or the SQLServer seemed to be taxed (either processor or memory-wise) while this is going on. The distribution of which pages are erroring seems to be comparable to the normal distribution for each page. There doesn't appear to be any pattern in terms of times of occurrence. We do have less errors on average on weekends (which correlates to normal site load), but even this appears to not be consistent. There also doesn't appear to be a correlation between the errors logged and any kind of logged performance monitor events. This includes an array of perfmon counters including:
.NET CLR Jit(w3wp)
otal # of IL Bytes Jitted
.NET CLR Jit(w3wp)IL Bytes Jitted / sec
.NET CLR Jit(w3wp)\% Time in Jit
.NET CLR Jit(w3wp)# of Methods Jitted
.NET CLR Jit(w3wp)# of IL Bytes Jitted
ASP.NET Apps v1.1.4322(__Total__)Requests Failed
ASP.NET Apps v1.1.4322(__Total__)Errors Unhandled During Execution/Sec
ASP.NET Apps v1.1.4322(__Total__)Errors Unhandled During Execution
ASP.NET Apps v1.1.4322(__Total__)Cache Total Turnover Rate
ASP.NET Apps v1.1.4322(__Total__)Errors During Preprocessing
ASP.NET Apps v1.1.4322(__Total__)Errors During Execution
ASP.NET Apps v1.1.4322(__Total__)Requests Executing
ASP.NET Apps v1.1.4322(__Total__)Requests Total
ASP.NET Apps v1.1.4322(__Total__)Errors Total
ASP.NET Apps v1.1.4322(__Total__)Sessions Abandoned
ASP.NET Apps v1.1.4322(__Total__)Errors Total/Sec
ASP.NET Apps v1.1.4322(__Total__)Anonymous Requests/Sec
ASP.NET Apps v1.1.4322(__Total__)Requests/Sec
ASP.NET Apps v1.1.4322(__Total__)Session SQL Server connections total
ASP.NET Apps v1.1.4322(__Total__)Cache Total Hit Ratio
ASP.NET v1.1.4322Requests Current
ASP.NET v1.1.4322Request Execution Time
MemoryPages/sec
Bytes Total/sec
PhysicalDisk(_Total)Avg. Disk Queue Length
Processor(_Total)\% Processor Time
Web Service CacheFile Cache Hits %
Web Service CacheFile Cache Misses
Web Service CacheFile Cache Hits
Web Service(_Total)Current Connections
Web Service(_Total)Post Requests/sec)
The only pattern I can see in the logs doesn't correlate to the occurrence of these errors, but is the only pattern I can see. Looking at the perfmon logs we are seeing a pattern where the "Total # of IL Bytes Jitted", "IL Bytes Jitted / sec", "% Time in Jit", "# of Methods Jitted", and "# of IL Bytes Jitted" counters for the staging site (which shouldn't be getting any traffic) doesn't pull data for a 20-50 minute period after which there is an immediate spike in "IL Bytes Jitted / sec" and a jump in "% Time in Jit" for 2-20 minute of up to 99% for the main site.
I am having two textboxes. I wanted to change the text of textbox on button click but using session variable. But its not working.
Default.aspx :
[Code]....
Default.aspx.cs:
[Code]....
I want "New Text1" should appear in textbox1 on button click. how can i do as the code mentioned is not working.
I'm having trouble getting 2 identical ASP.NET MVC applications to share the same Session using a Session StateServer. The reason I'm trying to do this is we will eventually be deploying this app across 3 web servers that need to share the same state. We need to use StateServer because we are trying to minimise use of the db for non data-related storage.
The Setup: I've deployed the same code base to http://localhost/App1 and http://localhost/App2
both have identical Web.Config files with the following:
<system.web>
<sessionState mode="StateServer"
cookieless="false" [code]....
The Result:For both deployments, when the page first loads I can see that the mode is StateServer and the timestamp is getting set to the same time as the realtime value.. However, if this was working, only the first page should have the same time as the realtime value. The second page load should read from the StateServer because that timestamp value is no longer null, and display that time value. But instead, it's displaying the realtime value again.
When I refresh the page, I the timestamp stays the same and the realtime value is always updating. This indicates that the timestamp is being saved to the Session, but the time stamp value is always different for both deployments when it should be the same, so this indicates that the Session is not being shared.
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.
View 2 Replies I am new to all this, and ignorant beyond compare. I believe I have the same problem as this :
[URL]. However, the solution proposed for him doesn't seem to work for me. I have a session variable that 'march_cpi_session' that I wish to include in an sql select statement to multiply the values I get from a datatable before they're used to populate a gridview control. The session variable works fine elsewhere in my application, but causes a variety (depending upon how I fiddle about with the syntax) of sql errors. This is the currrent code:
[code]....
I have read in many places that referencing IRequiresSessionState or IReadOnlySessionState will allow me access to the Session scoped variables from within the ProcessRequest method in an ASHX file.
I have implemented these changes, as follows, and I am unable to retrieve this data still, as the server returns a null object reference error:
using System;
using System.Web;
using System.Web.SessionState;[code]....
The error is most certainly specific to pulling data from the session, yet I am 100% certain that the session contains data in this key.
It shouldnt matter where I am storing the data (cookies, vs db, etc), right?
I have a problem with a Model Popup Extender that monitoring a background thread.
I need to give feedback to the user about tasks that happend in the server side.
So searching on internet this give me a solution [URL]
Launch a thread, passing the Session variable, update a flag and a mesage and show the info in the web with a timer.
almost all, is fine, in one server (sadly, close to production) after the task (and thread) is completed, the Session variable is set to null and the user is redirected to a "Session Expired" Page.
[code].....
I noticed that this is a very slow server and some websites are very slow.
Session is managed with cookies and the timeout is set to 30 min.
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",
[Code].....
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.
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.
I have one AsyncFileUpload control ,one Attach button,one Listbox and Save button.
When Users browse the file and click the attach button, filename must be added to listbox. So in this way the user has the option to add upto multiple filenames to listbox. For this i have written the following code
[Code]....
this is source code
[Code]....
In Attach button click event i added the filename to listbox and saved the Asyncfileupload controls in different session variable.
When user clicks on save button all files has to be saved in application folder and for this i wrote the following code.
[Code]....
But iam unable to save all the files . Suppose i added two AsyncFileupload controls to session variables, only last file i,e. 2nd file can only be saved and couldn't get first file.
[Code]....
I am trying to check the connection with one of active IBM MQ's but I am getting this error.. Unable to load DLL 'amqxcs2.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
I am using the following code..
Included amqmdnet.dll and amqmdxcs.dll in bin and gave the same reference to the project.
using IBM.WMQ;
using IBM.WMQ.PCF;
I am using an Visual studio 2010 ultimate edition. And here i have getting an error " unable to connect to the asp.net development server " while i try to run the Web Application by pressing F5 key from Web Application Project. Can any tell me whats the problem and how can i resolve it.
View 3 RepliesI added the following code to global.asax to load up several session variable when a session starts. I'm assuming that when a page goes to use the variable that I should be
1) checking at the page level that the value is valid not 0 when its not expected to be 0, not a zero-length string when its expected to have a length
2) have code at the page level that sets the values if the values have not been set as when the Session timeout, ideally putting the code in a class derived from Page and then deriving all of my pages from the new class so that the code does not have to be repeated in every page
[Code]....
I have a problem by getting session which created for new site visit or session expired.
View 3 RepliesI want the code for showing popup dialog box , to show the time remaining for session closing because of in-activity. and 2 buttons for allowing to stay or to signout.
i want all the settings that are need to achieve the functionality.
I have a class called EditMapUtilities. Here are some class properties that I want to persist:
public class EditMapUtlities
{
public static Boolean isInitialEditMapPageLoad
{
get { return SessionHandler.isInitialEditMapPageLoad; }
set { SessionHandler.isInitialEditMapPageLoad = value; }
}
// REST OF CLASS NOT GERMAIN TO DISCUSSION AND OMITTED
}
Here is my SessionHandler Class following the pattern from this post Static Session Class and Multiple Users:
using System.Web.SessionState;
public static class SessionHandler
{
private static HttpSessionState currentSession
{
get
{
if (HttpContext.Current.Session == null)
throw new Exception("Session is not available in the current context.");
else
return HttpContext.Current.Session;
}
}
//A boolean type session variable
private static string _isInitialEditMapPageLoad = "EditMapInitialPageLoad";
public static bool isInitialEditMapPageLoad
{
get
{
if (currentSession[_isInitialEditMapPageLoad] == null)
return true;
else
return (Boolean)currentSession[_isInitialEditMapPageLoad];
}
set
{
currentSession[_isInitialEditMapPageLoad] = value;
}
}
}
I am still learning OOAD. I want to keep relevant properties with relevant classes. I also want to keep all Session stored variables in one place for ease of maintenance and to encapsulate the session keys and calls. I feel like my design is too coupled though. How can I make it more loosely coupled? Is my editMapUtilities class too tightly coupled to the SessionHandler class? How would you do it better?
Let suppose, I am building an asp.net website which has login scenario in it. I want to provide a certain functionality to the website that if the user is already login on computer 1 and now try to login on computer 2, so he will be allowed to remain login on computer 2, while automatically logout him from computer 1. I also know that http is a stateless medium, so whenever user interact with computer 1 and try to interact with the page, it will get noticed at that time.
View 2 Replies