exception-handling

Custom exception handling in WCF Service and Client

What you think about this approach: Fault helper: [Serializable] public class WcfHwServiceFault { private readonly Guid _guid; private readonly byte[] _data; private WcfHwServiceFault(Guid guid, byte[] data) { _guid = guid; _data = data; } public static WcfHwServiceFault Create(Exception ex) ...

Out of Memory exception handling?

have a dump_log which points to "Out of Memory exception". How do I fix the issue as we have a number of applications running on the Android target? ...

Get xhr object in vb.net while ajax calling fails.

Hi Dude, I have a big problem in jQuery.ajax call. I am calling the web service whenever click the update button. I have a separate web service class, in which consist of few methods. When I calling the web service method, I have made the error handling and log the error information in db after that I have to override the “ex” that mean...

asp.net site demo over webex, weird issues seen

Hi Our customer experienced multiple errors on a demonstration to a customer of theirs. The site is asp.net 3.5 based and has been running pretty well lately. They said 2 hours later site was ok again... (needless to say they are not happy) The traces in the health log look very weird, it appeared to be as if incomplete pages were re...

Why do I get inconsistent exceptions on Python?

I encountered a very strange behavior in Python, a behavior that is not consistent. ... except IOError as msg: sys.exit("###ERROR IOError: %s" % (msg)) Usually this would get me a message like: ###ERROR IOError: [Errno 13] Permission denied: 'filename' In same cases the above code is giving me a tuple instead of a proper error ...

How do I log an exception when I don't know where it might throw?

We have a WPF application that we've deployed to the customer. However, the application is randomly fatally crashing with an "unexpected error" dialog box on the customer's computer. We need to be able to see the exception message and preferably stack trace as well, but because it's crashing randomly, we don't know where we should be put...

Why can Haskell exceptions only be caught inside the IO monad?

Can anybody explain why exceptions may be thrown outside the IO monad, but may only be caught inside it? ...

How to treat exceptions in constructor best?

Hi, How to treat exception in best way in construct? option1 - catch exception where object created: class Account { function __construct($id){ if(empty($id)){ throw new My_Exception('id can\'t be empty'); } // ... } } class a1 { function just($id){ try { $account = new Acc...

When/why to use custom exceptions

I read a thread on this topic on this very forum which listed some reasons to use custom exceptions but none of them really seemed strong reasons (can't remember the reasons now). So why would you use custom exceptins? In particular, I have never understood the decision making process between using a standard or custom exception to indi...

How does Haskell exception handling work?

foldl1 (+) [] How do I catch the resulting error? ...

PHP: How can we disable exception messages on production website and keep them in dev?

Hi, How can be disable exception messages on the production website and keep them in dev? Example: try{ //some code } catch(Exception $e){ echo $e.getMessage(); } Edit: How it done on Zend Framework? (.ini file but what about exception code that should be write?) Edit 2: If my example can't work how zend framework disabl...

How can I stop HIToolbox from catching my exceptions?

This question follows on from my other question on why my app isn't being brought down by exceptions. The Problem When an exception is thrown on the main thread via an Action, the app still doesn't crash. As per Dave's answer to my original question, I've implemented the reportException category on NSApplication and set the uncaught e...

formatting (or supplying string to) exception's messages in oracle

There are parameterized error messages in Oracle database. For example, there is 01919, 00000, "role '%s' does not exist" in oraus.msg. If one issue some nonsense GRANT ... TO ... %s is substituted by this nonexistent privilege. It is possible to raise exception -1919 and supply some string to %s? Code: not_system_privilege EXCEPTION; ...

Handling errors and incorrect parameters in a wcf service

Hi, this might sound like a daft question but I can't seem to find a obvious answer. I have to quickly create a simple WCF service and I have created all the classes I need decorated with the DataContract and DataMember attributes and I have created a custom exception class and everything is working. However if an exception is thrown w...

JavaScript list of exceptions

Hi all, This time I don't have any problem but just for curiosity I want to know how many exception are there in JavaScript. For example I am using following code: <script type="text/javascript"> var x; try{ x = 1 / 0; alert(x); // output: Infinity. FYI: JavaScript has Infinity property and it's value is 1.7976...

Where/what level should logging code go?

I'm wondering where logging code should go. For example, should my repository log it's own errors? Or should I log all errors from the UI/controller? Are there any general deisgn principles about this, or does anyone have link to a good article or somesuch. ...

is this exception handling code valid

Will both catch blocks be hit? try { DoSomething(); } catch (AuthenticationException e) { throw; } catch (Exception e) { throw new AuthenticationException("Hello "); } ...

How to find the offending insertion from a BatchUpdateException?

When I have a BatchUpdateException as the result of a unique constraint violation is there a way for me to determine which record in the batch insert is in violation? For example let's say I'm performing a batch insert by calling PreparedStatement.executeBatch() and I catch the BatchUpdateException which has as it's cause "ORA-00001: un...

Dropping a file onto a script to run as argument causes exception in Vista

edit:OK, I could swear that the way I'd tested it showed that the getcwd was also causing the exception, but now it appears it's just the file creation. When I move the try-except blocks to their it actually does catch it like you'd think it would. So chalk that up to user error. Original Question: I have a script I'm working on that I...

Is there a way to catch all unhandled exceptions thrown by a given class?

I know how to catch all unhandled exceptions in a given thread, but wondering if there is a way to catch all unhandled exceptions thrown by a given class instead of wrapping each of the calls in a try catch block. In case there's no way of doing this (likely to be the case) how would you achieve the same effect? Just to give a bit of c...