I once saw that was possible to do something like adding a key in the web.config file to redirect to a default error page everytime a unhandled exception is found.
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How can we prevent page crash in asp.net? Is there any generic function or place like global.asax where we specify a file to redirect to when an unhanded exception occurs? (like we redirect to a specified page when 404 page not found exception occurs?
View 3 RepliesI put some global error handling in place, but am having problems testing it by causing unhandled exceptions.
Here's all I can think of at the moment. feel free to add to this list with more ways to trip unhanndled exceptions.
1) Dangerous form data - Entering characters such as < and > in a text box and trying to submit
2) Put invalid values in a URL parameter - eg if you page is www.test.com/home?testid=XXX where XXX is the form number/identity # you are trying to pull up, put a number that doesn't exist in the URL and hit enter.
I'm sure I could change some stored procedures or otherwise mess with my data access components but I'd rather not have to change any code anywhere...I want to be able to generate these exceptions on the front end, like a user would.
I'm working with a third party vendor at the moment who has supplied an ASP.Net web application. The web app generates around 200 unhandled exceptions per day, which end up as emails in my in-box. Upon investigation it turns out that most of these errors are triggered by the GoogleBot web crawler indexing the site and triggering access to another third party web service, which is rate-limiting the requests. When a request limit is exceeded, the third party web service refuses the request, this results in an unhandled exception in the web server and an HTTP/500 status code. The exception looks like this:
[code]....
The web app developer seems unwilling to handle these errors for reasons I don't really understand. Their approach is to throttle the GoogleBot until the errors stop happening (Google indexes quite aggressivley, generating around 5,000 hits per day). While I accept that throttling the GoogleBot would work, it seems like a cop-out to me. I've always considered unhandled exceptions to be bugs. Shouldn't the web app handle these errors? It is ever acceptable to allow an HTTP/500 to happen? What do the web developers out there think?
I noticed that IIS will return 500 error, but is there any other log in the IIS side?
View 4 RepliesI didn't want to post anything before i search and upgrade to the latest ajax3.5I copied the zip extracted it in a location and then on vs2008 i added a toolbox and i imported the jaxcontroltoolkit.dll(the very first on the folder).
I got the controls and all is fine until then.
The problem (i previous had with the beta version) stayed.
I did not handle an exception and vs prompted me for the location of accordioncontrol.cs (i don't clearly remember the control), saying there is no source code and i should provide one.I clicked cancel (there is clearly no accordion .cs control on the zip) and the program got the exception on the web page.Ok.
Now everytime i put a breakpoint on the page and it reaches the last end sub it prompts me this "There is no source code available for the current location."I can hit F5 and pass this, however if i hit F11(next statement) it prompts me for the location of the picture i include here. I remember finding the cs somewhere for the beta and included it and it prompted me for wrong version or something on the unhandled exceptions so i have forgotten the error (because i usually handle all my exceptions so i didn't have any for a while).
I am getting this error:
Server Application Unavailable The web application you are attempting to access on this web server is currently unavailable. hit the "Refresh" button in your web browser to retry your request.
Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. review this log entry to discover what caused this error to occur.
However there is no error in the application event logs. So I am wondering if there's a specific setting in IIS or for the virtual site that enables logging?
Changing the customerror setting in the web.config seems to have no effect. I don't think it's even getting that far. IIS 6, Windows Server 2003
I have custom errors set in the web config file as follows:
<customErrors mode="RemoteOnly" defaultRedirect="GenericError.aspx" />
Fine and dandy... I like that mode="RemoteOnly" facilitates development...
For unhandled exceptions, I have in global.asax:
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Response.Redirect("GenericError.aspx")
End Sub
However, unhandled exceptions are going to the generic error page instead of the informative yellow screen of death preferred by developers. I can comment out the redirect in global.asax, but then I need to remember to change it for the production environment. Is there a way I can check in Application_Error whether I am remote or not to determine whether to redirect?
I'm building the standard 3-tier ASP.NET web application but I'm struggling as to where to do certain things - specifically handling exceptions.
I've tried to have a look around on the web for some examples but can't find any which go as far as a whole project showing how everything links together.
In my data-tier I'm connecting to SQL Server and doing some stuff. I know I need to catch exceptions that could be raised as a result but I'm not sure where to do it.
From what I've read I should be doing it in the UI tier but in that case I'm not sure how to ensure that the connection to the database is closed. Is anyone able to clarify how to do this? Also if anyone knows as to where I could find an example 3-tier web application that follows best practices that would be great too.
We have a asp.net application and want to implement logging. The first idea was to use the Application_Error method in the global.asax file.
The problem is that ASP.NET very often seem to throw exceptions internally that are not caused by the application and which seem not to interfer with the users normal workflow. For example we often get HTTPExceptions, UnauthorizedAccessExceptions and others caught in this method, although there is no real error in the application.
'm currently planning to deploy a site with a third party hosting provider. I will only have access to the server via ftp and a tool similar to cpanel called WebsitePanelNo access to IIS set up or configs.Is there anyway to redirect http://www.example.com to http://example.com?
View 3 RepliesI have one web application that manages 20-30 websites (one asp.net engine loading different templates based on httphost)Im redirecting non-www requests to its www equivalent in my web.config using UrlRewrite.
<rules>
<rule name="301 Example Lazy Domain" stopProcessing="true">
<match url=".*" />
<conditions>
<add input="{HTTP_HOST}" pattern="^example.com$" />
</conditions>
[code]...
We are using BlogEngine.net for our company blog and we'd like to start using feedburner. Since we already have an considerable amount of subscribers to our feed, we want to maintain the same url. The url of our feed would be: ~/blog/syndication.axd. What I'd like to do, is to maintain the URL, but redirect requests to this url to the feedburner URL. So, I started to use the urlMappings section in the web.config for that:
<urlMappings>
<add url="~/blog/syndication.axd" mappedUrl="[URL]" />
<urlMappings>
But for one reason or the other, this does not seem to work and I am redirected to the root of my web site.
I know how to alter the web config to redirect to an errors page but what I need to do is have the actual offending error message print to that page. This is a special request for testing reasons, I realize the whole point of a custom error page is to provide a user friendly message when an error occurs but for testing we want to show the user the message so they can copy and paste it into a ticketing system we are using for beta testing feedback.
Should I use the global.asax instead? I am pretty new to vb.net and am not sure how to get the actual error message to display on my custom error page.
i set in web.config timeout session for 1 min.and after it expires i want it to move the user directly to the home page i have tried:
<!--// session timeout-->
<system.web>
<authentication mode="Forms">
[code]...
There are some folders in my application that are only accessible by users in certain roles.In order to protect the contents of these folders, I placed web.config files in them which look like so:
[Code...]
Also,in the main web.config file, I have this configured:
[Code...]
However,when I try to access a folder that I'm not authorized to access, I'm not being redirected to unauthorized.aspx page as indicated in the main web.config. Instead,I'm getting sent to the login page.Any idea what I'm doing wrong? Here's the authentication section from the main web.config:
[Code...]
I am using forms authentication to authenticate users. Application has multiple folders and one of the folders has its own web.config
[Code]....
I want to redirect the user to "info.aspx" instead of "login.aspx"Root has the following web config
[Code]....
I have what I think is a very common scenario but I've searched quite some time now and can't seem to find the answer! I have a standard web app that has a web.config in the root directory. I have some account management pages in a subdirectory called Accounts. Any timeouts at the root level work fine - the user is redirected to Default.aspx as indicated in my Forms authentication. My problem is when the users are in the Accounts (or any) subdirectory and they go off for coffee and the app times out. On the next click, they get an error saying "Accounts/Default.aspx" cannot be found. And Default.aspx is not there as it sits at the root level. It's trying to redirect them to the default login URL as defined in the web.config file but that doesn't work when the user is sitting in a subdirectory. I don't want to put a default page in this any every sub directory. I have tried putting a web.config file in the subdirectory but it throws the error about machine to application level/IIS.
View 1 RepliesI need convert my htaccess code to web.config code.
this is the htaccess code:
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9} /index.php HTTP/
RewriteRule ^index.php$ http://www.wonderstarter.com/ [R=301,L]
sir when any connction or error or exception generated in a page then control will go to where(which section)in the web.config file. i have to create a page when any exception or error or connection fails occurs from that it will redirect to login page so what code i have to write under web.config file pl tell me?
View 4 RepliesI want to redirect my Javascript and CSS URLs to Homepage(Default.aspx) by web.config or via anyother way in ASP.Net. I tried to try it but I can't able to do this thing. I have already checkout ASP.Net professional book but I can't get any reference for it anywhere.
View 2 RepliesHow should I log exceptions? I never tried logging in .NET before. Nor try to dump exceptions to a txt (or binary) file. I dont require a text file, just a way to view the logs with the file and line #.
-edit- using asp.net
I have the following code
[code]....
and while that presents a friendlier error message to a user, I've forgotten how to show me the "real" error.
which one is better response.redirect or postbackurl(asp:button feture) to redirect web page?
View 3 RepliesI want to redirect to "~/City/Göteborg", but if I just write Response.Redirect("~/City/Göteborg"); I will end up with an ugly URL in the address-bar like this: http://www.mysite.com/City/G%c3%b6teborg..
So my question is how to redirect to obtain a clean url like http://www.mysite.com/City/Göteborg?
