i want to upload picture throw FileUpload control and then store it in session, after store in session i want to read it out to image control and insert to database.
View 3 RepliesI have a page where the user must be logged in to upload an image.
When they hit the upload button, after a few seconds the user is logged out and redirected to another page.
The upload never happens. Obviously this is not supposed to happen. This happens 7/8 times out of 10. Sometimes it succeeds, but this is not dependable.
My session is set to InProc and 20
In session_start (global.asax), session timeout is 40
Where do I start debugging this. Not sure if it's a code issue as the code works or is it a session issue as it's the session that gets killed?
I am working with globalization project to convert website in spanish
In my global.asax.cs file I have declared
string CountryCode="US";
//this is for setting country
Session["CountryCode"]
= CountryCode;
And I try to get current culture information through
System.Threading.Thread.CurrentThread.CurrentCulture.ToString();and store it in string called sLocale
And in other file called search.cs there is function called fillproducts() as follow
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I have two aspx pages.In first page i have two textboxes . i need to use textbox values in second page. with out using session
View 5 RepliesI read the solutioin for this error, at the following link :http://forums.asp.net/p/1046935/1576341.aspxbut I am still not clear what exactly causes the error. I have two doubts :1. Can anyone please elaborate a bit on this issue, with any example ????2. Is there any drawback of this approach ?
View 4 RepliesI wanna write a method to get or set session timeout at run time.
View 1 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
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I have a problem by getting session which created for new site visit or session expired.
View 3 RepliesI use some session variables to get the job done(shopping cart, etc) but it is not stable..manytimes I get no items in session object and other times(refreshing the page) I get missing data...I downloaded the entire site code to my local pc and debugged it and run it succesfully without any session data missing...When I run it in the server, I get bad session again: no products in shopping cart or products with missing quantities...
The same website runs smoothly in our production server too....The problem is with our development server...
I have some code in my page load event where I just want to fire once when the user opens the Browser. The only issue is if you open a new tab with the same website the session variable does not reset. Is there a way to reset the session variable when you open a new tab or do you have to take the whole web browser down for it to clear the session variable.
In Global Page:
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which place(exact folder) the session & session id will be stored?
View 8 RepliesI have a website live in asp.net
now if user closes browser. the session does not get killed.
I spoke with friend and he said that cannot be done as sessions are on server.
but i see banking website who kills session when browser is closed.
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.
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.
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but after that i observe that somehow "Session_Start" event gets called.
I want to be able to persist data across a session but do this outside of the built-in session state object. Why is a long story that I will not go into here. I just need to know where I can put data other than in the session object that will persist across the specific session.
View 3 RepliesWe have a web site that implements a custom SiteMapProvider using a User Control added in the master page. I need to be able to limit the sitemap nodes added depending on the logged in user, that is, certain users should not see certain sitemap nodes. Currently, the login processing code determines if users are in the certain category or role and then sets a value in session state, for example, Session["UserInRoleXXX"] = "Yes"; I tried changing the code in the user control to check the session state, but I got the following error: NullReferenceException ... Object reference not set to an instance of an object." Can session state be accessed in a user control?
View 6 Replieshow to set asp.net session alive no session timed out problem
View 11 RepliesI am new to asp.net Can you please guide me what is session and session variables ? Please I don't need a comparision of asp session and asp.net session because I don't know anything about asp. I have saw many articles on types of session as well. But still I cant understand exectly what is session and what are session variables in asp.net ?
View 9 RepliesI'm doing nothing special with session...
I just put some value on button_click event handler and then redirect to another page
like this { Session["key"]="value"; Responde.Redirect("AnotherPage.aspx"); }
And then I try to read Session["key"] on Page_Load of AnotherPage.aspx but it's null!
What can cause this?
P.S. When I use Server.Transfer() instead of Response.Redirect() it works fine.
in my application the default time out period for a session is 20 minutes. but i want to increase the sessiion time out period for a textbox.
View 4 RepliesI want to control the login user to access our system. I authenticated all of users by using my own way in project. and I want to limit the number of user to access the system cncurrently. It means , We sell our project to customer as Licence software. If user buy it for three users, we will allow three conurrent login user to access the system. Our system allow our customer to create their own users as they wish. We don't want to control the user creation to use the system. but But we want to control the total no of current login user at the server as per our licence agreement . After reading some article, I see there are two main ways to control the no of users.
One way is to use the membership property in my project and then can count the number of online users by executing Membership.GetNumberOfUsersOnline Method.
If I use membership property, I think it is not ok at my project. As my understanding, the system will control the user creation if we use the memebership provider. I am not really sure whether I can use membership provider property to get my system requirement or not.
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I'm curently developing web application which uses standard form authorization and, of course, server session objects (quite classic app). Now I'm developing client side component, which base functionality is to allow users to acquire tiif/jpg/pdf document from scanner (client side) and send it to server. Because of scan complexity and need for very user friendly interface i decided to implement Activex object (object written in .net 2.0). Until now all was ok, so I have got activex which succesfully registers and scan documents on client - but i cannot manage with sending files to server.
My concept of sending files was like that:
- preparing Upload.aspx web page wich is used for reciving files sended by POST method and saving files in database (of course to proper save in database i need some current user context information) - in ActiveX i decided to use System.Net.HttpWebRequest object to prepare and send data the problem was third point:
- i thought that in-proc activex object would "derive" web session form web page activex is placed on - but i was wrong (or i made it wrong). Whenever i send request form Activex, in response i got login.aspx page - so it looks that new session is created and new authorization is needed.
I was trying to pass to my Activex values stored in "ASP.Net_SessionId" and ".ASPXAUTH" cookies, as i found that these are the values identifying session and athorized user - but with no luck.
I think, that becaause HTTP is stateless protocol all information needed to "connect to/share" existing session on IIS server need to be included in request data, so there must be way to add these information to request sended from my activex.
I would be very grateful, if someone could provide me information what should i add (headres/cookies/etc... ?) to my request data so it could share session from "parent" web page.
Which is best option to store confidential information in a page?Control,Session,QueryString etc ... ?And also the performance also should be good ... ?
View 11 RepliesLets say I am doing a shoping cart. I authenticate the user with a session variable.For example:
If(Request.IsAuthenticated)
// Here I want to add to the shoping cart.
// Can I do the following
Session["Cart"] = "Washing Machine";
Now will this Session["Cart"] value which is washing machine here be unique to diff customers?
I have filed image type varbinary
I want upload image and show then with click button save
store in db