how can i use a particular UIActionSheet's button with some actioning (explain in brief) in iphone?

how can i use a particular UIActionSheet's button with some actioning (e开发者_开发技巧xplain in brief) in iphone ?

http://howtomakeiphoneapps.com/2009/09/how-to-use-uiactionsheet/

http://iphoneinaction.manning.com/iphone_in_action/2009/06/uiactionsheet-part-one-alternate-user-input.html

Go through these links. You will get some idea :)