CODEWITHSUNDEEP
c#.netexceptioncontinue
Toad
Toad

Reputation: 15935

is there a way to continue an exception in C#?

When an unexpected exception occurs in your program (in the debugger). Sometimes you just want to skip it since killing the program at that point is more harmful than continuing. Or you just want to continue since you were more interested in another error/bug

Is there an option/compilerflag/secretswitch to enable this?

I understand exceptions should be resolved right away, but there are scenarios (like I described) where one just wants to skip it for the time-being

Upvotes: 4

Views: 9518

Answers (8)

reinierpost
reinierpost

Reputation: 8591

Exceptions in C# are not resumable, but events are - and that is how resumable exceptions are typically implemented: as cancellable events. See also this question.

Upvotes: 3

Danail
Danail

Reputation: 10583

I assume that by "skipping" you mean that you want your program to continue working after the exception. That, of course, is possible by catching the exception when using try-catch block.

If the exception is not application stopper (for example, some key variable is not initialized after the exception, and you can't continue work) it is recommended that you at least log it before continue. Of course, putting

catch (Exception e) { }

everywhere in your source will not lead to a stable application ;)

If your problem is more debugger-related (you don't want the debugger to stop on every thrown exception), then there is a place in VS where you can change this:

In the Debug menu, select Exceptions. You'll see all possible exceptions and you can adjust their behaviour when thrown or not handled by the user.

Upvotes: 0

solairaja
solairaja

Reputation: 964

If you want to know what exception you want to allow. then you can do this below

try
{
       // your functionality
}
catch(Exception ex)
{
     // Catch only the exceptions you need to point out
}
finally
{
   //do what you want to complete with this function.
}

Upvotes: 0

Burt
Burt

Reputation: 7758

Have a look at the Exception Handling Application Block and related documentation. It contains best practices for handling application exceptions and there is a lot of framework code done for you i.e. logging.

Upvotes: 0

Darin Dimitrov
Darin Dimitrov

Reputation: 1039258

When stepping through the code in debug mode you could skip the execution of the instructions that throw the undesired exception. But if the exception is already thrown and you don't have a try/catch it will propagate.

Upvotes: 1

jmservera
jmservera

Reputation: 6682

If you are into the debugger then right click on the line you want to continue and select: Set Next Statement... but use it at your own risk!

Upvotes: 1

Jon Skeet
Jon Skeet

Reputation: 1502556

You can't do this without an appropriate catch block in your code, no. However, I can't remember ever wanting to do this: if an exception occurs which your code doesn't know how to genuinely handle, why would you want to continue? You're in a bad state at that point - continuing would be dangerous.

Can you give an example of why you'd want to continue in a debugger session but not in production code?

Upvotes: 6

Sev
Sev

Reputation: 15727

Use a try-catch block, and when catching, don't do anything about the exception.

Upvotes: 2

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