How to turn on break when the exception type is user unhandled?

Question

During debugging a NULL Ref Exception I accidentally unchecked the box Break when this exception type is user-unhandled in the exception popUp. How can I turn this back on?

I've looked at debug-> exceptions but dont see null ref mentioned

Answer 1

In the IDE, press CTRL+ALT+E.

Using the Search bar in the top right of the window that appears, search for NullReferenceException You will see:

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Or, you can try "Restore defaults":

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If you are having trouble testing that you're managing the right exception, try throwing an exception and interacting with the check box (off and on) like shown below. If ON then break here, if OFF then do not break:

Additionally refer to Managing Exceptions with the Debugger

Answer 2

FYI... Ctrl+Alt+E is equivalent to Debug, Windows, Exception Settings.