Hi..
I bought C# edition(not asp.net2).When I create the polls tables relationships an error occured:

Unable to create relationship 'FK_PollsVotes_PollsOptions'.
Introducing FOREIGN KEY constraint 'FK_PollsVotes_PollsOptions' on table 'PollsVotes' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.

I followed the book steps(Page 332) in the same order what could cause this problem?

You need to get the DB from the backup file in the code download. It has some fixes that were made after the book came out.

Thank you very much for your quick and helpful reply I will check the download files.:)