I'm sure I had no problem with doing this before. I have a querystring in the session and I want to write it to a string to return on the page? Conversion from type 'HttpValueCollection' to type 'String' is not valid. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Conversion from type 'HttpValueCollection' to type 'String' is not valid.
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 have an update function in my data layer which is defined as:
public int UpdateRBTable(parameters ...) This calls a SQL Server Stored Procedure to perform an update function on the database.
The process does its job for updating the table. However, the stored procedure has a return value (which indicates how many rows were updated), but this return value is not returned to the application. The application always shows that a zero was returned from the stored procedure.
Can my WebMethod return an XmlDocument as return type?
When I try to consume the web service I'm still not getting XML. It appears as though a reference to the method is being returned rather than say a string containing XML.
<WebMethod()> _ Public Function CustomerSearch(ByVal lastName As String, ByVal firstName As String, ByVal companyName As String, ByVal city As String, ByVal state As String, ByVal email As String) As XmlDocument ' Create XML doc Dim doc As XmlDocument = New XmlDocument() ' some more code Return doc End Function
How to get asp.net return drop down list to return value as int
I want to pass the value to a stored procedure as an integer. But the default appears to be as a string which is not what the store procedure is expecting.
Is there a good way to return the list values as ints?
I suspect I can you set the value on the change selection event, is there another way?
I have an approve button.on clicking on this button it should show that an inactive value is present .Onclicking yes conformation it should save the data or else clicking on no conformation should return false; how i will do that?After alert it always submit the data.Â
string otherAffiliateName = txtRequestedAffiliate.Text; int inActiveAffiliates = new BLRating().InActiveAAffiliateChecking(otherAffiliateName); if (inActiveAffiliates > 0)
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This is the code i used.how i wiil stay back on Confirm 'no' click?
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.
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.
