VS 2008 Concurrent Viewing And Logon ID?
Jun 7, 2010
I am a windows application developer doing a web application with VB.net and SQL 2008 for the first time.
I have developed a web application where users are supposed to view a file after selecting from a listbox. I then pick the users logon ID from windows then store in database and produce statistical reports later. It was working fine on my local machine till i deployed it on server to make it accessible on the intranet. The server OS is Windows 2008 Server and runs IIS. My issues are as follows,
1. The application is unable to store the user logon id from the client.
2. When more than one user uses the application, then there are errors but one user does not produce errors.
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Aug 19, 2010
I am a windows application developer doing a web application with VB.net and SQL 2008 for the first time.I have developed a web application where users are supposed to view a file after selecting from a listbox. I then pick the users logon ID from windows then store in database and produce statistical reports later. It was working fine on my local machine till i deployed it on server to make it accessible on the intranet. The server OS is Windows 2008 Server and runs IIS. My issues are as follows,1. The application is unable to store the user logon id from the client.2. When more than one user uses the application, then there are errors but one user does not produce errors.
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Sep 7, 2011
I am using Integrated Windows authentication and Role based authorization.The web.config file has two Active Directory groups.Sample code of web.config file for Role based authorization (Actually I got this sample code from a moderator of this site Gary works well).
Code:
<location path="Bloodgroup.aspx">
<system.web>
<authorization>
<allow roles="MedcenterGroup1"/>
<deny users="*"/>
</authorization>
</system.web>
</location>
So user's who doesn't belog to "Group1" AD group, should get Unauthorized error. It works exactly like that. But, before getting unauthorized error, it shows a pop up screen (as shown in the attached picture) prompting to put userid and password. If a user in AD group "Group1" accesses "Blood group. aspx" page, popup message doesn't come which is correct. Following is the code in web.config file to handle errors:
Code:
The <customErrors> section enables configuration of what to do if/when an unhandled error occurs during the execution of a request. Specifically, it enables developers to configure html error pages to be displayed in place of a error stack trace. -->
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="401" redirect="Errors.aspx" />
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
Question 1: why does the popup box prompting user id and password comes up?
Question 2: I have put in web.config file in customErrors tag to direct to Errors.apsx page when I get 401.2, it should be redirected to Errors.aspx page. But it is not getting re-directed.
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Sep 2, 2011
I have a web page in my project that views a selected pdf file. The problem is the file stays locked with the process w3wp.exe which I assume is the adobe file reader or something. How I can release this process after viewing it? Or another way of viewing it without locking the file?
Here is how I am doing it:
Code:
Dim File1 As String = System.Configuration.ConfigurationManager.AppSettings("Report")
Dim R1 As String = Page.Request.QueryString("r")
If R1 <> "" Then
Dim path As String = File1 & R1
[Code]..
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Oct 31, 2011
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But here is where it gets wierd! When I try to view it in IE, it fails by just keep trying and eventually fails. Then if I past the URL it is trying in the browser by itself, it loads. Then I go back to the association website and try and it will work by loading the website in the iframe page. It does this only after I view the website url by itself in the browser.
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Jan 13, 2011
I am getting "ASP.NET Session Expired" error when viewing SQL Server 2008 reports using the Microsoft ReportViewer web control. I found this article http://balanagaraj.wordpress.com/2009/09/25/session-has-expired-in-asp-net/ which suggests to use one worker process in IIS application pool, but that may affect performance, is there any other solution for this? I tried setting "AsyncRendering" to false already and that didn't work.
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Nov 18, 2010
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Apr 28, 2010
I am working on a website in which more than a thousand users can login at a time and there may be more than 50000 total users. I am worried about the performance of the application in case of concurrent access.
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Mar 9, 2010
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}
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Mar 15, 2010
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Jun 22, 2010
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Feb 15, 2010
concerning requests being blocked from a main window after a popup window had initiated a file download. Further requests from the same session are being queued until the download is complete. So, is there any way to override this? Is there anyway to tell asp.net to not serialize same session requests? Is there any way to tell asp.net to ignore session for a specific request...httphander(module) or otherwise?
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Jan 18, 2011
I'm developing web application with concurrent user using the application. The problem i'm facing is that if the first user login his details are taken affecting the second user how is process the data in the application.How to avoid it?the best way to code to maintain concurrent users.
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Feb 8, 2011
I'm having an issue with my hosting provider (winhost.com). My app is built on ASP.NET 4 MVC 3. Up until a few days ago, everything was running fine. All of a sudden I've started getting 503 errors when trying to access my site (wikipediamaze.com). It doesn't happen all the time, just most of the time.
When someone starts playing the game a request is made to wikipedia.org to get the contents of the page for the current step in the puzzle. Basically I'm screen scraping wikipedia.org, injecting some html and then displaying the results. All of my web requests are closed immediately after receiving the data.
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May 10, 2010
I have written a code using SRS 2005 where report will download in PDF/EXCEL format. All work fines except when we downoad same report concurrenlty.
When same report is downloaded by 4-5 users simultaneously some of the users get error:
Exception:System.Net.WebException: The request failed with HTTP status 405: Method Not Allowed at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
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Dec 29, 2010
I am developing an ASP.NET application that takes user input and serializes them into a text file. Now, when a second update request comes while the file is still being written, an IOException will be generated.How do I handle concurrent update request to this file?
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May 12, 2010
I am involved in designing a asp.net webforms application using .NET 3.5. I have a requirement where we need to log exceptions.
What is the best approach for exception handling, given that there would be concurrent users for this application?
Is there a need or possibility to log in exceptions at a user level? My support team in-charge wants to have a feature where the support team can get user specific log files.
To give you a background, this application is currently on VB 6.0 and we are migrating it along with some enhancements. So, today the support personnel have a provision to get user specific log files.
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Oct 21, 2010
If multiple users access a web-form at the same time, how can I allow that using my code? Essentially each user reads and writes one variable in the application, and concurrent access is causing problem there.
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Nov 16, 2010
Suppose I have two threads(Thread1, Thread2) where the threads are accessing the cache for a given object such as in the code below nearly at the same time:
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Jun 10, 2010
In my ASP.NET MVC2 web app I have a page which goes off and gets results from a number of different web service feeds. These return times vary so I want to basically display them as they return after the page loads. I also want my user to be able to kick of requests that can run concurrently with these other requests.
At the minute my page just seems to queue up the requests. The web service calls returning one at a time in the order they are called and then the user can kick of requests.
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May 3, 2010
I would like to know the number of users logged into my ASP.NET 2.0 application.
Points to be considered:
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2) Should't make a difference whether the session is inproc/state server managed/ or SQL server managed.
3) Should preferably be seamless to a web-farm architecture.
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Jul 3, 2012
How to avoid concurrent login for same user?
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Mar 26, 2016
How to control concurrent requests for web sites?
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Mar 30, 2010
I am stuck with the issue of concurrent access to Session object. Actually my problem is i m writing to session in frame1 and trying to access that same Session object at the same time in Frame2's Page. I know about the reader/writer lock. I made the enablesessionstate = readonly in the page where i m writing to session. its giving me strange behavior on IE and firefox.
Its working concurrently in IE8 ( means page2 is diplaying modified values while page1 is changing the session object) but does not work in Firefox even page load is not called untill function on page 1 completed. Either anyone can fix my issue with firefox or there is new solution to reader/writer lock so that i can read the session at the same time while writing.
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Mar 21, 2010
I am trying to create a system in which there will be a single user accessing his acount from two endpoints simultanously.
I think this is possible.
1) How to restrict the user to have only one session at a time?
2) How to change it to have limited number of sessions per user at a time?
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