Our ASP.NET 2 web application handles exceptions very elegantly. We catch exceptions in Global ASAX in Application_Error. From there we log the exception and we show a friendly message to the user.However, this morning we deployed the latest version of our site. It ran ok for half an hour, but then the App Pool crashed. The site did not come back up until we restored the previous release.How can I make the app pool crash and skip the normal exception handler? I'm trying to replicate this problem, but with no luck so far.Update: we found the solution. One of our pages was screenscraping another page. But the URL was configured incorrectly and the page ended up screenscraping itself infinitely, thus causing a stack overflow exception.
I converted a ASP.Net website to ASP.Net web app and changed the framework from 2.0 to 3.5
The web application works fine in Visual studio. However, If I compile the app in a dll, and try to reuse its middle layer in another web project, All the classes that have a static variable crash. Code like:
What is happening is I'm trying to process international characters, but the code is falling through (giving up?) and replacing the field with a blank (well, I guess the screenshot is at the bottom)... The customer recently asked for support for Polish characters, and gave us a list of which ones he wants added.
This is the entire function:
Code: Protected Function chkExtchars(ByVal name As String) As String Dim j As Integer = 0 Dim dt As New DataTable Dim c() As Char = Nothing Dim n As Integer Dim nc As Char Dim newname As String = "" dt = HttpContext.Current.Session("xChars")
[Code] ....
But maybe it needs to be sequential? (the numbers on the far left?)
I just deployed my first ASP app to a remote server (using SQL SErver) and some data entry forms are crashing when the associated table is empty. The PageLoad method is empty, but the error occurs before the page becomes visible. The limited run time error I see says page not found error 404. If I put a record in the table using Mgt Studio, everything is fine. The form contains two LInq data source controls that populate dropdown lists, but everything else was hand coded - no data bound controls at all. There is no attempt to access the actual empty table until the data has been entered and the Insert button is pressed. I have made sure that the tables that use the datacontrols for dropdowns have data in them, even though this should not matter. I did not have this problem on my local machine when developing. In summary, page does not load when table is empty, even though I do not access the table when the page loads?????
This is the entire codebehind file, and yet the page cannot even seem to load.
I have a few years experience developing C#, I have been asked to learn ASP.NET for a web development project. Does anyone know of any crash course tutorials to enable me to achieve this quickly, either internet or literature based?
a look at this site.maimei.chAfter 5 times opening a new site via ajax (fancybox) it crashes in IE?ne little thing is that i load a whole asp.net site via ajax in the new window. so viewstate and other overhead is there twice after. could this be the problem? if yes, why just after 5 times?.is it possible to call just the content of an specific element via ajax? may be just the innerhtml of the body element of the called site?
I have a page that utilizes an IFrame to display another page within the first one. I am using ASP.NET 3.5 and when I click on a button to do a post back event, it causes Internet Explorer 7 to throw an error.
My project uses swfobject.js to display a Flash animation. But in Internet Explorer 8.0, if I try to refresh the page, the browser window closes.
To re-create this problem:
Download a sample solution from: [URL] Unzip the solution and open it in VWD 2010 or VS 2008 Pro Be sure VS is configured to use its development server (not IIS) Select Debug | Start Debugging (F5) When the Default.aspx page opens, press ctrl-F5 to refresh the browser window The browser window will close with no warning or explanation So far, I haven't seen this behavior in Firefox, and nobody has reported it in any browser other than IE-8.
Users get firsly to the step0 page, where they fill some info, the page updates, they fill some more, and then get redirected to step1 page.
Problem is that upon getting to the Step1 page, if the user clicks on the back button, then he gets to the last stage of the step0 page, which uses sessions and variables that are no longer existing, what causes a crash.
I'm looking for an elegant way to make sure that with each page visit, the page will restart itself to start phase.
I have this idea maybe twitching the Page_Load function, something about the is_post method, but since each page's post back hits this function,
After upgrading an asp.net application to 2.0 from 1.1 I am receiving a large 100+MB .tmp file in C:Temp on the web server when the w3wp process serving that application crashes. If you open the file it looks like it is some sort of dump file. how to turn this off. I know what is crashing the application and process.
I'm trying to bind a nullable bit column, which at the moment is mostly null, but I need to somehow convert the null to a 'false' on runtime because it doesn't bind to a checkbox if it's null. But, I am currently unable to change the default value and update all records accordingly - is there a way to do this in runtime?
I have a page with two data bound list box controls on it. When I there is data in the controls the page crashes and i get "Internet Explorer cannot display the webpage". I have tried to set break points to see what is going on. I have tries to fill the boxes in the code behind instead of using a data source in the page. I have tried setting the page time out to 3 minutes. Nothing is working and I'm not sure what the problem is. The page works fine as long as there is no data in the controls. I'm trying to figure out what I am missing.
Listbox causes page to Crash getting "Internet Explorer cannot display the webpage" Instead of posting your entire code for us to review, could you post the specific portion of the code that you think is causing the problem (probably the retrieval or setting of the data).
I couldnt help but notice that if you have a FileUpload-control, and then try to upload a file thats bigger(in bytes) then the allowed maxiumsize, then the site crashes or some wierd "Connection problem"-page shows up, atleast for me in Firefox...
So my question is simply...is this just for me?..and if not, how do I fix this the best way?...cause the current "crash-page" aint a nice way of handeling the problem in my opinion...whould be much better to actually just show some custom-page that lets the user know that thier trying to upload a file thats way to big..
We recently migrated our ASP.NET 2.0 application to ASP.NET 4.0. It is running on Windows 2003 with IIS 6.0. After migrating, we have found that the ASP.NET 4.0 worker process w3wp.exe crashes intermittently with an 'Access Denied' exception. The stack trace of the exception does not point to any code written in our application. We are clueless as to what could be causing this. The worker process crashes when it makes a remoting call over http.
Event Type: Error Event Source: ASP.NET 4.0.30319.0 Event Category: None Event ID: 1325 Date: 2/22/2011 Time: 10:01:03 AM User: N/A Computer: SYS01 Description: An unhandled exception occurred and the process was terminated. Application ID: /LM/W3SVC/1/ROOT/Remoting Process ID: 4660 Exception: System.TypeInitializationException Message: The type initializer for 'ConvertClass_1' threw an exception. StackTrace: at ConvertClass_1.Finalize() InnerException: System.Management.ManagementException Message: Access denied StackTrace: at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode) at System.Management.ManagementScope.InitializeGuts(Object o) at System.Management.ManagementScope.Initialize() at System.Management.ManagementObject.Initialize(Boolean getObject) at System.Management.ManagementClass.CreateInstance() at ConvertClass_1..cctor()
For more information, see Help and Support Center at [URL] We have tried options like giving permissions to ASPNET account in the WMI services under 'Component Services' but to no avail. Has anybody else faced this issue?
I have a timer running in my web application. Each time the application starts up, the timer is created. The issue is that the app pool ends after an idle period which also ends the timer. The next request causes the app pool to start back up and a new timer is created.
what is this error?how to handle it?Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
I've been getting this error recently, after several reloads of the same page:
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached So I am thinking there must be some queries or calls in the app I used incorrectly that causes them not to release the connection. Is there any tools out there that allows me to somehow peek into the pool to see who is hanging on to what?
.NET application pool often overflowing. What Should I do for solving this problem? I am using singletton class for db connection. Also; My all db connection lines in using code block. So, it be dispose by .NET engine.
I'm having issues with an ASP.net site (framework 3.5, IIS6 ) having very slow 'first hit' response times. I'm guessing that the issue is to do with the app pool recycling and having to warm up.
I got to thinking. As part of the site I have a HTTP module that spins up a 'never ending loop' on a separate thread which periodically (every 5 seconds) calls an sproc on SQL to make sure the database is still there. I'm wondering if a similar approach might work to get the site to make an HTTP request to "itself" as a keep alive.
My question is, before I go and do this, can anyone think of any reason why it won't work? For example, something like "oh no... ASP.Net will figure out that you're playing with yourself and not go through the whole page lifecycle... etc etc".
I have an IIS 6.0-based C#/ASP.NET web site with a SQL server backend.I want to generate some computationally expensive reports (summaries, search engine indexes, etc...) in idle CPU time. I need the reports to be generated from WITHIN the IIS App Pool so it knows the proper configuration settings and (harder to fix) avoids the nightmarish security restrictions I've been placed under.
Can I start threads inside the AppPool's process that won't tie up the CPU, so it can continue serving requests unfettered? If so, how? What code and libraries?
I imagine it involves ThreadPool and thread priorities, but I couldn't find good coverage of low-pri threads and their interaction with the IIS web server and App pool.
[EDIT] [URL] discusses using a Timer for this but doesn't directly state that the .NET framework will insure that the Timer thread is low-priority. This might be a solution, but is that assured?
[URL]
[EDIT] Interestingly, Stack Overflow itself seems to use IIS background threads for my purpose:
[URL] in the comments, everyone says their (no longer used) technique sucks, but this one in the comments makes sense to me...
I have trawled the internet - to no avail. Woe is me.I have a .Net website running under a .Net framework 4.0 App Pool.The website references various assemblies that have been compiled for .Net 3.5.I have ensured that identical versions of the dll's and pdb's are in the bin folder of the the 3.5 code that I am trying to debug, and the reference path of the 4.0 web site. I.e. the code that I am trying to debug matched the assemblies that are loaded into the app pool's process.
When I attach the debugger using VS2008 with the solution for the .Net 3.5 code open, the breakpoints that I have set are marked as invalid (i.e. marked with an exclamation mark). When I hit refresh on a browser page that invokes the code that I am trying to debug, VS2008 raises an unmanaged code exception.I have researched In-Process Side-by-Side code execution, which is what is occurring in this instance, and is working very well; but for the life of me I cannot find any information on debugging in this scenario.It is not an option to convert the .Net 3.5 projects to use .Net 4.0, nor is it possible to convert them to use VS2010 and leave them targeting .Net framework 3.5
I am asking this out of curiosity. I got the following error when this is not enabledAn attempt was made to load a program with an incorrect formatThis is related to loading a class library but this particular class library is compiled for any CPU with VS2010 64 bit running on Win7 64-bit
