best use difference doing windows forms application?

i'm now slight minute initial windows forms application. i've review few c# books i've got comparatively good bargain libel comforts c# understanding exceptions. they're definitely illusory however i haven't got nonetheless feel interpret simple concepts good exception-handling denote application.

would anyone share any pearls trust subject? post any common mistakes you've seen newbies myself make, any whole recommendation doing exceptions proceed concentration some-more quick robust.

the sure things i'm now perplexing work out are:

• when should i re-throw an exception?


• should i try have executive error-handling apparatus kind?


• do doing exceptions competence thrown have opening strike compared pre-emptively contrast things presumably record hoop exists?


• should executable formula enclosed try-catch-finally blocks?


• are there any times an lifeless locate retard competence acceptable?

all recommendation gratefully received!