WPF Properties.Settings throws exception on launch and close?

That exception is not so unusual in my experience. What is unusual is that the exception is (apparently) unhandled in your situation. Usually, (again in my experience) that exception is silently caught and handled by some other mechanism You are not, by any chance, running this in the VS debugger with 'break when an exception is thrown' are you?

That setting is under Debug -> Exceptions..., by the way.

That exception is not so unusual in my experience. What is unusual is that the exception is (apparently) unhandled in your situation. Usually, (again in my experience) that exception is silently caught and handled by some other mechanism.

You are not, by any chance, running this in the VS debugger with 'break when an exception is thrown' are you? That setting is under Debug -> Exceptions..., by the way.

Yes I am. This is likely to be the issue. – Maslow Aug 13 '10 at 21:29 I had inner code modifying the collection I was iterating around this same area and thought it was related to the binding failure exception.

– Maslow Aug 13 '10 at 21:34.

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