I have a piece of code which loads either french or english text and 2 link buttons that allow to switch between.
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What would be an efficient way of displaying the link buttons and text if both English and French exist and the session exists in either EN or FR.
I've thought of using panels to hide the buttons or text, but the main problem is having the page refresh to set the Session variable. Response.redirect(URL) to refresh the page i suppose and i can't find a better way to display the text other than to Response.write it since then i'd need a ton of labels.
I need to create a user login/logout/Session expiry tracking page(ASP.Net).. It is obvious that I can invoke my tracking page when user logs in and logs out.. How do I detect session expirey?
How do I implement this session: (UserID is part of the login table)
Session["UserID"]="usrName"; Into this code? using System; using System.Data; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.Odbc; using System.Data.SqlClient; public partial class Default2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Login1.Authenticate += Login1_Authenticate; } protected void Login1_Authenticate(object sender, AuthenticateEventArgs e) { //database connection string OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver}; Server=localhost; Database=gymwebsite; User=x; Password=x; OPTION=3;"); cn.Open(); OdbcCommand cmd = new OdbcCommand("Select * from User where username=? and password=?", cn); //Select the username and password from mysql database in login table cmd.Parameters.Add("@username", OdbcType.VarChar); cmd.Parameters["@username"].Value = this.Login1.UserName; cmd.Parameters.Add("@password", OdbcType.VarChar); cmd.Parameters["@password"].Value = this.Login1.Password; //use asp login control to check username and password cmd.Parameters.Add(new OdbcCommand("@UserID", 'id.int')); OdbcDataReader dr = default(OdbcDataReader); // Initialise a reader to read the rows from the login table. // If row exists, the login is successful dr = cmd.ExecuteReader(); int id = cmd.Parameters["@UserID"].Value; Session["UserID"]="usrName"; if (dr.Read()) { e.Authenticated = true; Response.Redirect("UserProfileWall.aspx"); // Event Authenticate is true forward to user profile } } }
I need to be able to retrieve the correct UserID when some one inputs there username and password upon login and then some how retrieve it on a new page something like this to retireve it but unsure?
I just dont know how to add the first part, the session into my login code so I can some how store the UserID in my session but also retrieve the correct UserID from the submitted data that takes from my mysql login table.
I want to display session timeout timer in my site, for e.g. if user doesn't perform any task's for last 3 minutes or so timer start displaying time left and when user start doing any activity i.e. mouseover etc it should disappear.
I'm working on an ASP.NET MVC web application that will be deployed across multiple load-balanced servers. With this setup, a user might have one request served by server A and the next request will be served by ServerB or ServerC. We don't want to store Session Data in the database, as we're trying to minimise database hits where ever possible. As such, we need to have the HttpSession managed and stored on another server. My understanding is that this is possible by using a Windows Service that will manage this for me, but I'm unfamiliar with how to implement this. Can somebody point me at some good documentation on how to do this? Or any pitfalls or other points to take into consideration?
I am creating an ASP.NET application that allows users to edit and insert data that is persisted in a SQL Server database.I would like to implement a controller class that handles queries for certain entities, caches results and triggers events when data is inserted or updated.I need one of these controller classes for each entity in my data model.What I'm unsure of is how to create a singleton class of this sort that different user sessions can access.
For example,I have a Employee entity in my data model.I would like to have an EmployeeController class that handles retrieving the employees from the database, sends inserts and updates to the database,keeps a cache of all employees and triggers events when an employee is inserted or updated.Objects in other user sessions could then listen and respond to these events.
Am I on the right track?Should I be using the ASP.NET MVC framework to accomplish this?How do I instantiate these controller classes when the first user needs them and have subsequent concurrent users access the same class?
EDIT:I've been researching the idea of a controller class as an anti-pattern since @TomTom's answer.I'm not convinced one way or the other.I still need an answer to question #3 above.Let's just drop the specific idea of a controller class for now. How do I create any class that is:accessible by multiple user sessions,allows only one instance,is deleted if there are no user sessions,and triggers events that other classes can listen to.
I 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
I 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.
Is there room for issue in the following code in terms of multiple users of the same web application? I mean, I know that a purely static string will be shared across all sessions for a single ASP.NET application, but since this explicitly refers to the Current.Session, even though it is static it seems like it would always refer to the session instance of the "current user." But an error is happening that could be explained by everyone sharing the current value of Mode and thus the most recent change overwriting everyone else's mode value. (As a background: This string is in a Helpers class that is used throughout the application. I do not want to make references to Session["Mode"] throughout the application and do not want to have to pass Session["Mode"] in every method call from an aspx.cs page.)
public static string Mode { get { var value = HttpContext.Current.Session["Mode"]; return (value ?? string.Empty).ToString(); } set { HttpContext.Current.Session["Mode"] = value; } }
I 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.
i have two web aplications running on different sites.
1. site gets user information and show another website (2. site) in an i frame. but when i do this 2. site session starts again on every page.postback . if i connect to 2. site without 1. site everything works well.
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.
There are two pages in my app, A and B.A is login page from which user ID was saved in a session. Once user login, B is open and user ID will display in B. When user submitted an order successfully at page B, page B will reopen but user ID was missed. How to fix it to keep session value in 20 minutes as default? I check IIS, session time out time is 60 minutes.
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.
I created a user control for my web application that checks for Session Timeout. If the criteria are met for Timeout, I use Response.Redirect to send the user back to the login page. I include this user control in my Master page, and run the SessionTimeoutcode in the user control's Page_Init event. That all works great. However, once the user logs in again after time-out (and I have verified that the OnLoggedIn event does fire) the user is redirected to the DestinationPageUrl. That page runs the Session Timeout check when it loads (as it should) and the Session Timeout code "says" that the session is still timed-out.
I have some cascading dropdownlists using the ajax toolkit I have a set up datatables in an xsd file. Then use these in a webservice to populate all the fields ... this all works great but now i need to pass an additional paramter to the first dropdownlist ( a date) but don't know how to do this? The method is below...
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The other code is:
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The first change would be to the tableadapter to add a param to the code i.e
AuditWebDS.TeamsDataTable teams = teamsAdapter.GetTeams(calldate);
but how do i get the calldate param to the webservice method... i tried a session variable but it comes up with session is null ? Is there another better way?
