I have an ASP.NET page that has a wizard control. I need to see if the same user is working on the page so I first time I insert a record and next time I update database records. I am using Session.SessionID to check if the same user is working on the page, but on every postback, SessionID gives a unique string and always the "insert" construct executes.
What is the best way to check the same user is working back and forth on the same page. User is not logged in, its an open form on the page.
I'd like that when a user logoff or his session expires, tha SessionID is no longer valid.
I've found the way to do it when the user logoff, simply doing:
[Code]....
But I don't know how to do it when the session has expired. Apparently, if the session has expired and the browser tries again to connect, the same SessionID will be recycled, and I want the server issues a new one, how can I do it?
I'm storing the session IDs of the logged-in users in a database, so I need to kill some sessions using the session Ids stored in the database, but unfortuently I'm not able to get any session using the seesion ID so that I can kill it.
I have ASP page that host an ASP.NET page in iframe. When I test this in FireFox all work ok but when I use IE the ASP.NET page is creating a new sessionID for each request. it only work if I change the IE Privacy settings allow session cookies .
Normally, when my server gets an invalid sessionID on the url it rewrites it. However (several?) search engine(s) are sending requests to my server with a lower case in the session number, where there is normally an upper case S. So for example
(s(vou3fq454gk3fbrncrmk1bmj)) will not just rewrite the sessionID and keep going, but
(S(vou3fq454gk3fbrncrmk1bmj)) WILL rewrite the sessionID and keep going without an error.
This is filling up my database and making it hard for me to use it effectively, plus, I would just like it to work.
Is there any way for it is not care if that first '(s(' is lower case? Or is there a way for IIS to cope with this in an efficient manner?
I hav a problem where I wanted to share session state between main page and subdomain page (example between [URL]. Naturally, in this case, the webserver will give me a different session id because the session id is bound to the domain.
But how can i override the sessionid of my main page when I come back to it?
I have my Web site set up to use SQL Server session state. This works fine. When a session starts, a row is created in ASPStateTempSessions.
When the user logs off the application, I am trying to call the stored procedure TempRemoveStateItem to clean up after myself (not sure if this is the right way to do it or not).
What I noticed is that the SQL table's SessionID column contains 32 characters whereas the .NET Session.SessionID value only contains 24 characters (which match the first 24 characters of the 32 characters stored in the SQL table). Because the values do not match, the stored procedure always fails.
Why would the SessionID value differ between .NET and SQL?
Many web applications use sessions to check the logged in status of the users. Is there a better approach to check the logged in status instead of using session state?
I'm looking at a pure ReSTful approach where is no session state at all. This may make more sense in an mvc application rather than an asp.net application.
I am trying to write a code that I can attach to a .aspx page using <!--#include file="newcode.aspx"-->. What I am trying to do is check to see if they have an current or active session and redirect them if they don't. It seems like this should be pretty simple, but I have not been able to get anything to work. This is only being used on One page. What I have tried is:
anybody tell me how can i check session is storing value or not?
actully i am using first time session variable to store datatable gridview but do't know that is saving value or not actully in my grid when user inser first row entry then it is ok when click on new row button then new row generate but previous row value lost.
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.
I am doing a POC of making my website run faster. Currently it stores huge object data in Session while passing information from one page to another. What I was thinking is to use shared methods and properties instead of session. It works, but wanted tocheck if this is an optimum way to do it. Below is the code that does not use session but still pass object data from one page to another:
i have a form on page1.aspx with several controls (textbox, dropdownlist, etc).on Page1 PageLoad event i load data from database and performe databinding.From Page1 a user can, by clicking a specific button, move to Page2.aspx to insert some details and, after saving details, he returns to page1.
if save changes are made on control on page1 before save them to db, obviously, these are lost on return from page2 (because are reloaded on pageload from db).How can i save control status between pages round trip?
Requirements: Create a Web Page in ASPx that will do the following:
1)One label will provide a count of how many times Button 1 has been clicked in the current session.
2)One label will provide a count of how many times Button 1 has been clicked by all users of the application. The Application Code for the Button should start at 100 (set this in the Global.asax file). this is what i have so far but i cant seem to get the application state to work properly.
aspx.vb
Partial Class _Default Inherits System.Web.UI.Page Dim clickcount As Integer
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Session("ClickCount") Is Nothing Then clickcount = 0 Else clickcount = CInt(Session("ClickCount")) End If If Not IsPostBack Then If Request.Cookies("UserName") IsNot Nothing Then Label1.Text = "Welcome Back " & Request.Cookies("UserName").Value & "." End If End If Dim clickCounta As Integer = CInt(Application("ClickCount")) End Sub Protected Sub PostBackSession_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles PostBackSession.Click clickcount += 1 lblClkCnt.Text = "Current Click Count is " & clickcount Application.Lock() Dim clickCounta As Integer = CInt(Application("ClickCount")) clickCounta += 1 Application("ClickCount") = clickCounta Application.UnLock() AppClick.Text = clickCounta Dim nameCookie As New HttpCookie("UserName", _ TextBox1.Text) nameCookie.Expires = Now.AddYears(1) Response.Cookies.Add(nameCookie) End Sub Protected Sub PostBackSession_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles PostBackSession.PreRender Session("ClickCount") = clickcount Application("ClickCount") = clickcount End Sub End Class global.asax <script runat="server"> Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs) Dim clickCounta As Integer = CInt(Application("ClickCount")) Application.Add("ClickCount", 0) End Sub Sub Application_End(ByVal sender As Object, ByVal e As EventArgs) Dim clickCounta As Integer = CInt(HttpContext.Current.Application("ClickCount")) End Sub Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs) ' Code that runs when an unhandled error occurs End Sub Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs) End Sub Sub Session_End(ByVal sender As Object, ByVal e As EventArgs) End Sub
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.
Let me explain, describing the scenario:In a custom server control (in my case, derived from CompositeControl), in the overidden CreateChildControls method I create a complex tree of subcontrols, using information from a db.The db provides both information on which controls I need to create (the user interface's structure) and the data used to fill these controls.Than the user can interact with the control and change the data (that becomes different to what stored on db).
My custom control lives in the same page where there are other controls, obviously.And these controls can cause a postback at any time.What I need is that my custom control keeps the data entered by the user across these postback, without reverting to the original data and loose the user data entry.
Here is the first doubt:
1)I create the subcontrols dinamically in the CreateChildControls at any page refresh (both on first call than on postback).I know that the framework solves the reference between the posted data and the controls I create in the CreateChildControls in order to set properties and raise control events, but can you tell me when and how it actually does this? In which phase of page life cycle? What happens after the CreateChildControls?
A second doubt:2)If the user interface structure must change as a consequence of the data entered, I had to execute CreateChildControls twice (the first time to recreate the original interface to get the events and the second time to create the new interface) In which phase of page/control lifecycle do I have to make the second call to CreateChildControls? I do it on Prerender now, but is it right or wrong, and why?
