Custom Exception Messages: Best practices

Question

Wondering how much effort I should go to forcing useful debugging information when creating exception messages, or should I just trust the user to supply the right info, or

Answer 1

I won't detract from the advise regarding Krzysztof's blog, but here is a dead-easy way to create custom exceptions.

Example:

The code behind that (which I borrowed somewhere, apologies to whomever that was)

message}' in {$this->file}({$this->line})\n"
                                . "{$this->getTraceAsString()}";
    }
}