Ten tips for handling .NET exceptions exceptionally

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1. Use one try and many catches
2. Order catch blocks from specific to general
3. Always ensure you reach a valid state
4. Document what you can throw
5. Throw the closest match
6. Never throw in the course of normal use
7. Extend the ApplicationException, not the base Exception, class
8. Use the inner exception property when rethrowing
9. Do not create lightly
10. Name appropriately