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Rules of Programming: Handle Exceptions First

When you write a new function, always make sure to handle exceptions first. Then write the actual function. It's as easy as that.

One of the most common failures: a variable containing something else than expected (either null value or wrong input). Make sure you handle it.

Also: use logging to catch errors. log4net and Elmah will help.

Rule #13 of programming:

Handle exceptions first

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